Lighting Journal June 2016

LIGHTING

JOURNAL The publication for all lighting professionals

CHRISTMAS COUNTDOWN: Festive switch-ons are now big, complex events, and that’s just the lighting

TEAM TALK: How LED is

transforming school sports halls and swimming pools FLEXIBLE WORKING: Understanding PLG08, the ILP’s latest guidance on adaptive lighting

June 2016

4

10

LIGHTING JOURNAL June 2016

3

EDITORIAL

4

TEAM TALK

Next-generation lighting technology is enabling an increasing number of schools to optimise the coverage of sports halls and other challenging spaces. But any new specification must be undertaken very carefully, argues Colin Lawson

6

WIND POWER

8

HOUNDS OFF

30

FORTIES STYLE

34

KNOTTY PROBLEM

38

SMART THINKING

40

ILP NEWS

42

SWITCH IN TIME

44

CONSULTANTS

46

LIGHTING DIRECTORY

48

DIARY

A wind-based art concept is illuminating the new National Sailing Academy of Wales.

Lighting Journal reefed in and tied up

LED lighting is at the heart of a new greyhound track at Towcester Racecourse in Northamptonshire

10 CHRISTMAS COUNTDOWN

The days of a local dignitary flicking a switch and everyone going ‘oo’ at a few strings of Christmas lights are long gone. Nowadays festive switch-ons are complex events – and that’s just the lighting, explains Nick Buckley

14 SIGN LANGUAGE

The government’s new TSRGD 2016 regulations give designers greater flexibility in determining precisely how traffic signs are to be lit. And no bad thing too, argues Dave Johnson

16 FLEXIBLE WORKING

The ILP’s latest guidance, PLG08, outlines how lighting professionals can use and apply adaptive lighting in an appropriate and responsible way. Allan Howard and Dave Franks talk you through it

The industry’s prestigious Lighting Design Awards, supported by the ILP, celebrated its 40th anniversary in May. Lighting Journal was there

When Peterborough City Council decided to regenerate one of its major roadways as a tree-lined avenue, an innovative lighting solution was arrived at: wooden-clad lighting columns. But it was not without its challenges, as engineer and YLP member Matt Fisher explains

More than 100 members came to the ILP’s ‘Lightscene’ CPD event in Sunderland in April, where they gained some fascinating insights into the future ‘smart city’ agenda.

Lighting Journal listened in

No less than the very future of lighting will be under discussion at this month’s ILP Professional Lighting Summit in Brighton

It is commonly assumed photoelectric cells usurped the time switch as the controller of choice from the 1950s onwards. Yet ‘light actuated switches’ had been manufactured and marketed for decades, as a chance discovery revealed to Simon Cornwell

20 BOLTS AND BRACES

It’s over 260 years since Benjamin Franklin conducted his famous kite experiment to understand lightning. But the danger to our infrastructure from electrical surge, whether from lightning strike, switching, electrostatic discharges or EMPs, is greater than ever, warns Jeremy Lester

24 STAGE MANAGED

An LED upgrade has given lighting technicians at Manchester’s The Lowry greater control and flexibility, saved on energy costs and created a more attractive ambience for visitors. Lighting Journal entered stage left

24

Contents

Cover picture: Festive lights Dublin 2015

Small on cost big on performance NEW

Kirium Mini ●●

Optimised for residential roads, path and cycle ways

●●

Lumen output from 625lm – 3500lm (7W to 35W)

●●

Extremely light weight with a choice of 5, 10 or 15 LED options

●●

Exceptional thermal performance, increasing efficiency and life of LEDs

●●

Zero upward light

●●

Fully CMS compatible

To learn more about KIRIUM MINI please call 01992 474600 email light@dwwindsor.com or visit us online

dwwindsor.com

Editorial Volume 81 No 6 June 2016 President Elizabeth Thomas BSc(Eng) CEng FILP Chief Executive Richard G Frost BA(Cantab) DPA HonFIAM Editor Nic Paton Email: nic@cormorantmedia.co.uk Editorial Board Tom Baynham MEng MA (Cantab) Emma Cogswell IALD Mark Cooper IEng MILP Graham Festenstein CEng MILP MSLL IALD John Gorse BA (Hons) MSLL Alan Jaques IEng MILP Nigel Parry IEng FILP Richard Webster Designed by Julie Bland Email: julie@matrixprint.com Advertising Manager Andy Etherton Email: andy@matrixprint.com Published by Matrix Print Consultants Ltd on behalf of Institution of Lighting Professionals Regent House, Regent Place, Rugby CV21 2PN Telephone: 01788 576492 E-mail: info@theilp.org.uk Website: www.theilp.org.uk Produced by

Matrix Print Consultants Ltd Unit C, Northfield Point, Cunliffe Drive, Kettering, Northants NN16 9QJ Tel: 01536 527297 Email: gary@matrixprint.com Website: www.matrixprint.com

There’s so much talk at the moment about smart, connected or ‘future’ cities, it was refreshing in April to hear John Fox, managing director of Lucy Zodion, making the point that ‘smart’ in this context is, in many respects, a relative and rather fluid term.

He cited Deepak Bhatia of the World Bank, who has argued that, for many, a ‘smart’ city will just be one with 24-hour electricity and water. He also highlighted how, to the Victorians, the innovation of gas lighting down Pall Mall would have been thought of as ‘smart’, as would from there, of course, have been the progression to electric lighting.

John was one of a number of speakers at the ILP’s ‘Lightscene’ CPD event in Sunderland, as we report in this edition. And, given its topicality, it was only right the overarching theme for the day was smart cities and the Internet of Things (IoT).

I made the point earlier in the year that, for me, smart cities are at one level, yes, a discussion about technology and innovation – Big Data, IoT, autonomous and wearable devices, how we interact with our streets and vice versa. But John also made, I think, the important point that we need to see the technology as simply an enabler rather than an end in itself.

ILP Immediate Past President Mark Cooper made a similar point, highlighting that, for all the (extremely valid) focus on what this will mean for things such as CMS, energy usage, asset control or even just individual lighting columns, what is of course most important is how these innovations will affect our day-to-day lives.

It is only when we, as citizens, can easily see why having, say, street lighting control or pollution monitoring or even just a fridge that can ‘call out’ to the local supermarket is a good thing – how it will actually change how we behave, interact and think in a good way – that smart cities will, I suspect, really take off. On top of this, there is going to need to be an ongoing process of education and reassurance to convince people that the supporting Wi-Fi infrastructure is robust, reliable and, most of all, secure.

The good news, of course, is this is a debate we can carry on having at this month’s Professional Lighting Summit in Brighton where, among other presentations, there will be a smart cities ‘essential hour’ and a roundtable discussion on ‘the future of lighting’.

If you haven’t already signed up, the ILP has all the details online, at www. theilp.org.uk, and I, for one, am looking forward to some thoughtful and invigorating debate.

Nic Paton Editor

© ILP 2016 The views or statements expressed in these pages do not necessarily accord with those of The Institution of Lighting Professionals or the Lighting Journal’s editor. Photocopying of Lighting Journal items for private use is permitted, but not for commercial purposes or economic gain.

Reprints of material published in these pages is available for a fee, on application to the editor.

Lighting Journal June 2016

4 Sports lighting

TEAM TALK Next-generation lighting technology is enabling an increasing number of schools to optimise the coverage of sports halls and other challenging spaces. But any new specification must be undertaken very carefully, argues Colin Lawson

F

rom high-efficiency fluorescents to the latest LED fixtures, schools and colleges of higher education have never faced a greater variety of choice when it comes to selecting new lighting systems.

Most, if not all, of these products will deliver significant cost-savings and increased life expectancy compared to legacy solutions, but it would be far from accurate to suggest that ‘all fixtures are created equal’.

In particular, choosing the right systems for a sports hall can be particularly challenging. Complying with the multiple relevant regulatory frameworks, such as CIBSE Lighting Guide 4 and Sports England criteria, is bound to be one pressing priority.

Most establishments will also wish to incorporate a sophisticated dimming and scene-setting system to complement the wide range of sports – and quite probably also some non-

Lighting Journal June 2016

sports – activities that will take place in the hall.

In terms of the fixtures themselves, long-life will be a pre-requisite, as schools and colleges seek to maximise return-on-investment and reduce maintenance costs. This shouldn’t be a significant challenge, given the present availability of high-efficiency lighting, but by no means all fixtures will be able to ensure sufficient reduction of glare and the necessary uniformity of coverage.

Not surprisingly, given this growing remit of expectations, traditional highintensity discharge light sources have overwhelmingly been consigned to the history books now. The latest generation of fluorescent lights can provide a suitable solution if carefully specified, and in particular can deliver dramatic reduction of glare. But, in general, it is evident that LED lighting is now being selected for many school facility fit-outs – and it’s not too difficult to see why.

There is very much more to achieving effective schools’ lighting than simply ‘going LED’.

Overall ambience, glare and integrated control capability must also be prioritised if a new installation is to achieve its full potential ENERGY CONSUMPTION The potential energy savings of switching to LED certainly help to make a compelling case. Energy consumption in school projects is typically cut by more than 50% by ‘going LED’, with payback on investment often achieved in a couple of years.

As schools confront austerity measures and the prospect of further cutbacks, LED lighting’s ability to reduce energy bills is bound to be attractive.

Adequate illumination of the vertical plane is a specific requirement for some sports activities, and can also be delivered by the latest fixtures. Glare can be an issue with LED, given the small footprint of the source, but may be addressed effectively with highly transmissive lenses.

Then there is the ability for LEDbased systems to be deployed quickly and easily with scene-setting controllers, such as those which utilise

Sports lighting 5

Eversfield Preparatory School in Solihull: the school chose an all-LED lighting solution from Tamlite for its brand new £2 million sports hall (see over), performing arts facility and swimming pool (above)

the industry standard DALI protocol.

Indeed, it is hard to over-emphasise the benefits that can result from implementing LED in conjunction with intelligent lighting control. The combination of techniques such as presence and daylight dimming, as well as multiple ‘scenes’ to suit individual activities, can ensure that a given area is always appropriately illuminated.

When one considers that this approach may be applied widely across a school’s sports curriculum – for example, indoor football, cricket, basketball, badminton and netball – then it is evident energy usage can be highly optimised.

And, for the school personnel, the good news is that manufacturers have invested much R&D energy over the last few years into making centralised control interfaces as straightforward and user-friendly as possible.

Then there is the impact on pupil and teacher health and morale. It has been shown repeatedly that LED lighting can have an enhanced effect on the body’s natural circadian rhythm cycle. More specifically, LED has a much higher content of the blue end of the colour spectrum, which helps to suppress melatonin levels and encourage a greater sense of energy and vitality.

Away from natural daylight, there is undoubtedly a benefit to be attained from this in an educational environment.

SWIMMING POOL LIGHTING Further factors enter the frame if a swimming pool is involved in a lighting upgrade. The safety of users is,

SCHOOLS’ LIGHTING: A PRIMARY CHECKLIST • In the case of sports facilities, it is important to remember that different activities require contrasting lux levels.

For example, EN 12193 indicates that 200 lux is suited to most ball sports, while illumination levels of 500-750 lux may well be required for competitions and tournaments.

Higher lux levels in this region can also be applicable to non-sporting applications, such as exams and theatrical productions.

• Glare-free lighting is vital if the negative impact on pupils, who will look up during sports activities on a regular basis, is to be minimised.

• Deploying LED-based systems with integrated controllers, such as those which utilise the industry-standard DALI protocol, can optimise both energy savings and lighting levels.

• Immediate reductions in energy usage of 60% can be achieved post-installation of LED. But careful selection of manufacturer and installer/consultant are essential if the investment is to be maximised. obviously, of paramount importance – and that means effective control of the reflections on the water’s surface.

The configuration of the building can be a determining factor here, but in many cases up-lighting constitutes the best approach, given that swimmers will experience virtually no discomfort glare from the actual luminaire as it is outside of their peripheral vision.

This is not without some challenge – ensuring that light bounces off the ceiling and is able typically to achieve 300 lux average means the floodlight needs to be extremely efficient. Once again, LED is increasingly used here since the technology has advanced to the extent that the necessary output can be readily achieved.

Inevitably, given the higher-thanambient temperatures of the swimming pool environment, maintaining the integrity of the fixture is another critical consideration. Corrosion is one habitual problem of legacy lighting, and often ends up being a spur to investment in new systems.

Fortunately, the high quality of contemporary coatings allows many manufacturers to deliver fixtures that offer very rigorous resistance to variable temperature and humidity.

Many are also able to supply additional coatings on request, such as those featuring a marine grade compound that might be deployed for coastal or seagoing applications.

RECEPTION, FOYER AND EXTERIOR SPACES One of the most notable side-effects of the huge increase in the diversity and quality of LED lighting production over the last few decades is that there is invariably a suitable solution for any given environment.

This certainly applies to schools, where LED can also address the problems generated by spaces such as reception and foyer areas, and exterior spaces.

Lighting Journal June 2016

6 Sports lighting In such general indoor spaces, creating an inviting ambience tends to be the number one priority – for which purpose, neutral white (4,000K) is likely to provide an ideal level. Moreover, modern LED lighting systems make it very easy to achieve the kind of consistent coverage desired by most customers.

Extended lifecycle is another advantage, of course, and this is a consideration that is even more acute when one considers exterior lighting requirements such as the illumination of building facades surrounding primary entrance and exit points.

Traditionally, 38W 2D fixtures have been selected for this kind of application, with some specifiers still feeling they can provide the necessary blend of longevity and adequate lighting level.

But the fact is that, even today, such lights can frequently deliver a lifecycle of just 15,000 hours – compared to the 50,000 hours that can be achieved with LED. And that’s before one even begins to think about the energy savings, which can be more than 50% straightaway from the point of installation.

CONCLUSIONS It should be evident from this overview that there is very much more to achieving effective schools’ lighting than simply ‘going LED’ – or even considerations such as cost-efficiency and lifespan.

Overall ambience, glare and integrated control capability must also be prioritised if a new installation is to achieve its full potential.

The fact is that a correctly specified lighting system can also deliver

Eversfield Preparatory School: new sports hall

Lighting Journal June 2016

significant – and long-lasting benefits – for the pupils and teachers who use the facilities on a daily basis. In this context, it is worth noting that the evidence for LED lighting’s impact on health and morale continues to mount up on a yearly basis.

Careful investigation of manufacturers’ product ranges and provenance is therefore essential – and it stands to reason that those with longer, distinguished histories should be taken most seriously of all.But, equally importantly, enlisting the services of a specialist consultant and installer constitutes one of the best ways to ensure that a solution that is right for the school in question is selected.

WIND POWER

A wind-based art concept is illuminating the new National Sailing Academy of Wales. Lighting

Journal reefed in and tied up

Colin Lawson is head of sales, marketing and product development at Tamlite Lighting The ILP has sports lighting guidance for lighting professionals. Guidance for Lighting of Televised Sporting Events (Guidance Note 2/16) is designed for designers, architects, planners and decision-makers who are involved in the design of arenas, stadia and sport facilities that require artificial lighting in order to broadcast televised events in the UK. The guidance outlines existing lighting standards and good practice and provides high-level understanding of the processes and consultation required in setting up a coherent lighting brief to meet the needs of the sports persons, spectators, broadcasters and viewing audience.

It also discusses the design requirements and how to approach the delivery of this type of work.

The National Sailing Academy of Wales (Plas Heli): a dynamic and ‘real-time reactive’ system illuminates the building according to the wind strength and direction, using an amBX Light-Scene Engine

T

he innovation going on within sports lighting can be clearly seen within a light-led art concept developed for the new National Sailing Academy of Wales (Plas Heli), Pwllheli, north Wales.

Artist Jessica Lloyd-Jones was commissioned for the Plas Heli and has illuminated the building with wind-driven lighting effects using an amBX Light-Scene Engine.

Jessica’s idea was to illuminate the building according to the wind strength and direction, creating a dynamic and ‘real-time reactive’ system that would clearly link the building’s purpose and the elements. The building was designed by architect EWA. The colours of the lighting, both interior and exterior, change according to the actual wind speed, while a gap in colour moves around the circular building to reflect the wind direction.

Inspired by the Beaufort Scale, used by sailors all over the world to measure wind speed, the colours move in degrees through the colour range according to the wind speed measured in the roof of the building.

Live wind data is measured on the roof and analysed by the amBX Light-Scene Engine, which adjusts the colour and density location of the lighting, all in real time. The system also controls the white interior lighting.

SLIM AND ELEGANT AESTHETICS

P862 NEXT GENERATION LED LUMINAIRE P862 is an LED luminaire that excels in optical performance, thermal management, compatibility and serviceability, bringing an uncompromised outcome of efficiency, versatility, futureproofed for an optimised investment.

P862 has been designed to meet most demanding lighting requirements, being easy to install and maintain with toolless entry and upgrading. It combines latest LED light source with state-of-the-art design, achieving long life for both LEDs and the drivers. The installation is simple and fast, and the luminaire is easily upgradable on-site if required.

P862 is the ultimate solution to replace traditional HID sources. Being lightweight, the low profile appearance allows the P862 to be safely installed on existing columns and brackets.

DESIGNING & MANUFACTURING IN THE UK SINCE 1923

+44 1920 860600 | www.cuphosco.co.uk | enquiries@cuphosco.co.uk

Winner of HEA Manufacturer of the Year 2013, 2014 and 2015.

8 Sports lighting

Towcester Racecourse greyhound track: new 420m track with LED lighting. A total of 62 Cree light fixtures were installed

HOUNDS OFF LED lighting is at the heart of a new

greyhound track at Towcester Racecourse in Northamptonshire. Lighting Journal took a look

G

reyhound racing has for a number of years now been working hard to shake off its historic, slightly downmarket ‘men-hanging around-in-sheepskincoats’ reputation.

The industry has invested significantly in its tracks, including introducing more family-friendly facilities (for which read heated and with seats) along with bars, restaurants and even fine dining and corporate hospitality. There are now some 25 licensed greyhound racing stadiums in the UK, holding nearly 6,000 meetings a year.

One track that has very much gone down this route is Towcester Racecourse in Northamptonshire. Built in 1876, it has a long racing heritage and has served as the region’s only venue for both horse and dog racing for more than 20 years.

As part of a multi-million-pound investment and refurbishment plan launched in 2014, owners the Towcester Racecourse Company expanded its racing circuit to feature a £1.8 million, 420m greyhound track, allowing it to feature up to eight dog races.

One innovation, for example, was the installation of largescreen TVs throughout the viewing area as well as a highdefinition 50sq m screen installed in the track area To illuminate the track, Towcester Racecourse turned to

Lighting Journal June 2016

sports lighting specialist Halliday Lighting and manufacturer Cree, installing LED lighting around the track area.

The project involved the installation of Cree Edge High Output (HO) LED luminaires around the track to illuminate evening races and television coverage of the event.

These allow precise optical control for even distribution and pure white light, while also lowering maintenance and running system costs. The Edge brand also has 90 CRI colour quality for superior colour rendering and high-output 5,000K illumination.

LIGHTING FOR FILMING A total of 62 Cree light fixtures, featuring 415V and a GRAFIK Eye 3000 series Control Unit system were installed. Anti-flicker tests have been conducted to ensure top light quality for video cameras, allowing professional and amateur videos from both the track and tribunes’ angles.

The switch to LED has led to the introduction of higher quality lighting around the track, reduced maintenance costs over the ten-year warranty period and lower energy consumption. In fact, Towcester Racecourse has estimated the installation will help it reduce carbon emissions by some 72,150kg annually.

‘Upgrading lights to the new LED sports floodlighting range not only offers additional value to the viewer experience, but allows high-quality TV recording in the evening while also providing the best performance and energy savings in excess of 60%,’ says Alex Talton, sales director at Halliday Lighting.

Non Destructive Structural Testing Of Lighting Columns ASSESSMENT OF CORROSION AT KEYPOINTS The Problem:

The Solution:

Four positions identified by ILP Technical Report N°22. where undetected corrosion can result in sudden catastrophic failure.

Kiwa CMT Testing’s unique Relative Loss of Section (RLS) and Swage Joint Analyser (SJA) techniques designed to assess the extent of corrosion in the four danger zones including the column root below ground without excavation.

• • • •

Internal Corrosion at the Hot Swaged Joint Internal Corrosion at base of the door opening Internal or External Corrosion from the base of the door to ground level Corrosion of the root below ground

Supported by Geographical Information Systems to capture, store, analyse and manage data.

Kiwa CMT Testing is UKAS* accredited for the use of the RLS™ system and is also a Highway Electrical Registration Scheme (HERS) registered organisation.

Registration number SSR482. *For details of tests included on our current UKAS Schedule please visit www.ukas.org

Reg Nº SSR 482

Direct Cost Effective Testing : WHERE IT REALLY COUNTS Kiwa CMT Testing Tel 01332 383333 Fax 01332 602607 cmtenquiries@kiwa.co.uk www.kiwa.co.uk

3

And Rod said, Let there be light: and there was light.

And Rod saw the light, and it was good: and it had been switched with a Sangamo Digital Time Switch.

4

Solar/Astro time switches, specially tested for up to 400W of LED lighting for decorative & festive lighting.

www.sangamo.co.uk

10 Festive lighting

CHRISTMAS COUNTDOWN The days of a local dignitary flicking a switch and everyone going ‘oo’ at a few strings of Christmas lights are long gone. Nowadays festive switch-ons are big, complex events – and that’s just the lighting, explains Nick Buckley

Lighting Journal June 2016

Festive lighting 11

W

e’ve been working with Manchester City Council for the past 10-15 years and have lit the Christmas switch-on for the past decade, as well as numerous other live events in and around Manchester. We are one of the go-to companies for lighting and visuals at these sorts of events.

This month, for example, we’ll be lighting the majority of stages at the Parklife Festival, another major event in Heaton Park.

For the Christmas switch-on, the process starts around early September, once we get the firm date and a brief on what the council team is looking for this year. The council will normally have an outline idea and guidelines for what it is they want to achieve, but it is never set in stone too much. In fact, the relationship is such that we’re encouraged to feed in our own ideas at this design stage, which is great! The challenge is inevitably how to do something that’s a bit different from the year before, how to mix all the requirements, freshen things up and make it a bespoke package for that year.

With any festive switch-on or equivalent event, it comes down to three primary issues –

weather, power and control. But one completely different parameter is the fact that it is so temporary; you set it up, do the show, and it is very quickly taken down. Within two hours of the show finishing it’s back on the truck … and you could be forgiven for thinking there’d not even been an event taking place!

So it is very much about finding temporary solutions to lighting problems all the time – everything from the stage itself, how to install trusses and hang or rig the lights, where to locate the control system, how to manage the cabling and so on.

BATHED IN LIGHT For the Christmas 2015 switch-on, the council wanted something more creative and a bit more interactive with the audience. So it was about creating effects where people were bathed in light, where there were beam effects and lights scanning over the crowds.

The audience lighting comprised 16 SGM P5 LED floor fixtures, all outdoor IP-rated, strategically distributed around Albert Square in central Manchester, and these were mounted

Lighting Journal June 2016

12 Festive lighting on frames that clamped to the masts of four well-positioned lighting columns. We developed our own rigging process for this as a quick and practical solution to position lighting units exactly where needed to have the right effect.

The SGM P5 is an amazing light; the output for the size of the unit is phenomenal and the colours are rich and distinctive, so we had a couple on each lighting column. There also is a 16 amp feed on each column, which is great, because it means that element of infrastructure is in place already.

These were joined by 12 Clay Paky Mythos, six rigged on the bases of the PA delay tower risers in the middle of the audience area, at a height of about 1.8m, making them ideal for skimming above people’s heads. The other six were located on the ledge of the square’s central Prince Albert memorial monument, at approximately 5m high, and at an ideal angle to contrast with the other Mythos.

Onstage, seven Clay Paky A.leda K10 washes with B-EYE lenses were rigged on the truss either side of a row of Mythos’, and the mid-truss featured another three K10s B-EYEs. On the front truss there were four ARRI fresnels and two profiles to key light the presenters, singers and other entertainment. Also on this truss were another eight P5s to light the audience immediately in front of the stage.

All of these were controlled via a Jands Vista S3 console with a wireless W-DMX link to remote fixtures around the square. This makes it very easy, because the units can just pick up the control signal without needing a physical data cable run out to them.

Control can be a challenge at these types of events because of the nature of the outdoor environment but, thanks to the increasing development and reliability from wireless solutions, this is becoming more easily achievable and less of a headache. The front-of-house positioning of the control controls is also changing. The desks are getting smaller and programming lighting and other light sources like video is increasingly being executed through touch interfaces rather than buttons or keystrokes.

With everything getting so clever, it’s also important to keep up to date with how the technology is changing and evolving. I regular go on refresher courses run by the major console

THE ILP’S GUIDANCE

The ILP has guidance for lighting professionals on festive lighting.

PLG06, Guidance on Installation and Maintenance of Seasonal Decorations and Lighting Column Attachments, is available through the ILP website, www.theilp.org.uk, under ‘Resources’.

The guidance, published in 2014, has been developed to help those planning festive lights or other attachments to street lighting columns, furniture or buildings.

It reveals the issues when planning and installing decorations and how a competent lighting professional must address them.

Lighting Journal June 2016

manufacturers as it is vital to keep moving forward.

We also often use smoke to accentuate the light beams and create a 3D canvas with multiple visual patterns, which can be very effective. But, of course, being outside, getting smoke to behave is hugely more difficult because you have far less control of the airflow and you really can’t control it at all over a large area!

DIMMABLE LED PANELS To create some additional atmosphere and to avoid ‘black hole syndrome’ for the cameras (as the event was internet streamed), we created a custom arrangement of individually addressable dimmable LED panels on seven truss towers.

These were gelled-in festive red and green panels and mounted on their diagonal axes, a simple idea that produced a very cool and costeffective ambient light-box backdrop.

It was an amazing event, attended by a record crowd of some 20,000 people, and we’re hoping it will be even bigger and better this year.

Generally, I’m seeing more use of LED fixtures and panels and other ‘special effects’ kit to enhance buildings or live event. These LED effects panels are great for creating a highimpact visual surface that can react to the music.

I think we’ll see the LED trend continue in festive and event lighting. A few years ago when you looked at LED for something like this it wouldn’t have been bright or efficient enough, but now the technology has really become finetuned and enhanced.

It’s not uncommon to find lighting rigs now that are almost completely LED-based as opposed to discharge or tungsten fixtures. The LED light engines have created more power, flexibility and wider colour palettes. Now you can have multi-colour LED PAR cans that are moveable for an infinite variety of options, and a reasonable quantity can be run off a 13 amp socket rather than needing a massive generator.

Ironically, tungsten fixtures are becoming more of a trend and a special effect now. Older tungsten theatre-style units, such as the PATT 2013, are making a comeback to the stage and taking the limelight for their aesthetical appearance rather than their output quality.

For the Manchester switch-on there are many different performances happening throughout the hour, and so looks have to switch very quickly – effectively you have a backdrop of slides which is very theatrical in approach.

The lighting, although it is ultimately ‘eye candy’ to the event as a whole, needs to complement everything else happening in the environment, so it has to work hand-in-hand with all the other elements.

And, of course, if it wasn’t there you’d just have some people stood on a stage and no atmosphere. So it is a really vital element of the process and the whole experience for everyone there!

Nick Buckley is designer and project manager at dbn Lighting in Manchester

Below and right: The Parklife 2015 Festival. Control can be a challenge at these types of events because of the nature of the outdoor environment

Manchester switch-on (and far right): four ARRI fresnels and two profiles were used to key light the presenters, singers and other entertainment

Gelled-in festive red and green panels were mounted on their diagonal axes

14 Road sign lighting

SIGN LANGUAGE The government’s new TSRGD 2016 regulations give designers greater responsibility and flexibility in determining precisely how traffic signs are to be lit. And no bad thing too, argues Dave Johnson

L

ike many in our industry, I have been studying the recently published TSRGD 2016 and see that, in relation to sign lighting, it introduces some radical changes from its predecessors.

These changes give designers greater responsibility and flexibility in determining precisely how traffic signs are to be illuminated.

To explain, the new regulations still prescribe which signs must be internally or externally illuminated, but they no longer prescribe precisely how that is to be achieved. Most significantly, they no longer require external illumination to be provided by a light mounted on the same structure as the sign, as was the case with the 2002 regulations.

This means designers now have the flexibility to decide precisely how each individual sign is to be lit having regard to local factors. So they can, perhaps, still use a conventional sign light, or a spotlight mounted on a nearby lighting column or structure, or indeed by reliance on other ambient external lighting provided by the authority, such as its street lighting.

We all know signs cited as ‘safety critical’ can sometimes be used in non-critical situations – for example, a ‘no entry’ sign to reinforce a conspicuous gated road closure may not itself be considered safety critical in those particular circumstances.

APPROPRIATE ILLUMINATION With the introduction of the 2016 regulations. designers have been given both the responsibility and flexibility to determine precisely how they provide the required internal or external

Lighting Journal June 2016

Weight limit signs used for environmental reasons will still need to be illuminated to meet TSRGD 2016, but are perhaps not as safety critical as those used, for example, at a weak bridge

lighting, but now based on local risk assessments.

These changes are exactly what ADEPT and UKLB have been pressing for, and give local traffic authorities the obligation of considering the conspicuity of any given sign in its surroundings and ensuring that the means of illumination is appropriate.

Those considerations will, of course, include the benefits of any improved conspicuity from a sign light, as well as the costs and risks to the public and operatives of maintaining infrastructure associated with direct sign lighting.

The result will be that, where appropriate, local authorities will no longer need to provide and maintain electrical supply to traffic signposts, deploy traffic management to create safe working environment for lamp replacements and the like, ensuring that what resources are available are used to optimum effect.

This is, after all, only a logical extension of the responsibilities that traffic authorities exercise when they introduce measures that call for a traffic sign in the first place.

My view is that government should be congratulated for responding to the various rounds of consultation over TSRGD in the way that it has.

For those who are interested, the regulations can be downloaded from http://www.legislation.gov.uk/uksi/2016/362/ contents/made and Regulation 8 covers sign illumination.

Dave Johnson is highway manager at Transport for London, chair of the ADEPT Lighting Group and a member of the UK Lighting Board

FLEXIBLE WORKING

The ILP’s latest guidance, PLG08, outlines how lighting professionals can use and apply adaptive lighting in an appropriate and responsible way. Allan Howard and Dave Franks talk you through what’s inside

Lighting installations are often installed to meet the worst case lighting requirement and so, while they may be correct at maximum traffic flow, it is rare these conditions prevail throughout the hours of darkness or the whole year

PLG08 17

A

lthough TR27 Code of Practice for Variable Lighting for Highways gave guidance on variable lighting, it was considered this needed review and also the various other ‘adaptive’ lighting strategies now available to the design also needed consideration.

The result, therefore, was Professional Lighting Guide 08 – Guidance on the Application of Adaptive Lighting within the Public Realm, published by the ILP in March.

PLG08 will provide the reader with the knowledge and considerations to ensure their lighting designs and installations are delivered in the most efficient way. Until recently, lighting installations were all too often installed to meet the worst case lighting requirement. While correct when the road is operating at maximum traffic flow, it is rare that these conditions prevail throughout the hours of darkness or throughout the year.

Within the PLG08, the team identified highways that at first glance would need to be designed to ‘x’ levels based on traffic flows.

However, once these traffic flows were understood it was recognised that perhaps they never occurred during the hours of darkness thereby, or perhaps only during a few months in a year, therefore enabling the highway to be illuminated to the correct lower lighting level.

PLG08 will support the lighting professional to move towards the principles of ‘Ultra Efficient Lighting’ (UEL) as well as the principles of the ‘right quality of light, in the right place,

2000

at the right time, using the right control system’.

It is also perhaps worth considering that, as part of the panel’s research, 164 road locations were reviewed, which equated to 2,452 days of traffic data and 34,619,159 vehicle movements that were analysed.

It’s also worth reminding ourselves that we can be held responsible as professional designers and will be held accountable under various legislation including the Road Death Investigation Manual or the CDM2015 Regulations.

So, as you may expect, the guidance is predictable with regards the consideration of the standards, whilst importantly advising on definitions, legal considerations, economic and environmental considerations.

professional now to have access to control equipment to facilitate all adaptive lighting scenarios from switch off through to full dynamic adaptation brings the promise of efficient

ADAPTIVE LIGHTING Adaptive lighting is the term used to describe any change to a lighting solution. Whereby, a lighting solution changes in its basic operational status throughout its operational period, this may be through: • Compensation for design maintenance factors • Trimming • Adjusting the lighting class based upon highway/area use or the tasks being undertaken • For highways this may be a reduction in lighting class • For areas around entertainment venues this may be an increase in lighting class when such venues close • Part-night lighting • Switch off

Winter darkness or summer daylight

Darkness

The ability of the lighting

lighting installations as well as energy savings The ability of the lighting professional now to have access to control equipment to facilitate all adaptive lighting scenarios from switch off through to full dynamic adaptation brings the promise of efficient lighting installations as well as energy savings.

Lighting design has always been undertaken to address the daily traffic flow (worse case), however, as we know, traffic conditions vary over the hours of darkness. Therefore, the worst case at say six o’clock on a December’s evening (rush hour) may only last for a Winter darkness or summer daylight

Daylight

Darkness

Traffic flow per hour

1600 1200 800 400

24:30

23:30

22:30

21:30

20:30

19:30

18:30

17:30

16:30

15:30

14:30

13:30

12:30

11:30

10:30

09:30

08:30

07:30

06:30

05:30

04:30

03:30

02:30

01:30

00:30

0

Monday average Tuesday average Wednesday average Thursday average Friday average Saturday average Sunday average Average weekly ADT

Figure 11: Daily comparison flows across a week – First Avenue Harlow

Figure 11 from PLG08. Daily comparison flows across a week – First Avenue Harlow

Lighting Journal June 2016

18 PLG08

PLG08 makes the argument that the lighting class can be varied depending upon traffic flow

couple of hours, which effectively means we could be overlighting the highway for, say, 80% of the night.

In fact, for most of the year the conditions that require the traditional design lighting level may not even exist within the hours of darkness. This is best shown through Figure 11 from the PLG (and see graphic on previous page), where mid-winter is shown by the yellow band and mid-summer by the light blue. Certainly in the morning you can see peak traffic flows only occur during the hours of darkness in the winter months.

So applying the principles of UEL means that (and if we can understand what the traffic flow is) at any time then the correct lighting solutions can be applied.

This approach is recognised within the British and European standards, allowing lighting levels to be varied depending upon the category of road and its usage at any point in time. Therefore, lighting levels can be reduced when traffic flows are lower, while still providing the right lighting for all road users. It should also be said lighting can be increased as a crime reduction measure, say outside nightclubs for a defined period after they close.

It is now time to look at lighting design in a slightly different way. BS5489-1, 2013 advises us of a five-step PLG08 – Guidance on the Application of Adaptive Lighting within the Public Realm and all the ILP’s Professional Lighting Guides only happen because to the goodwill of the panel below and the support of their employers.

• Stuart Beale, Highways Agency • Stuart Bulmer, ILP • James Everley, Power Data Associates • Dave Franks, Westminster City Council • Carl Goulding, Ringway Jacobs • Shaun Harmer, Transport for London • Allan Howard, WSP-UK • Simon Langley, Highways Agency • Nigel Parry, Array Lighting • Derek Powell, Worcestershire County Council • Peter Raynham, UCL • Andy Sanders, Mott MacDonald • Bryan Shortreed, Urbis • Ken Weeks, Blaenau Council Gwent • Haydn Yeo, AOne+

Lighting Journal June 2016

strategy to help us understand: Step 1 – the tables within BS5489-1, 2013 make general assumptions about the environment and activities within which the road lies Step 2 – requires the area to be actually reviewed to determine the nature of the area and how the road is used Step 3 – requires you to consider the findings of Step 2 and through a risk assessment/appraisal adjust the lighting class in Stage 1 to suit actual conditions Step 4 – only applies to subsidiary roads, adjusting the level to suit the S/P ratio Step 5 – this relates to this report and requires the designer to consider if the task changes during the night and thus, can adaptive lighting be used? As such, adaptive lighting is applicable to all forms of exterior lighting under BS5489-1:2013 and so includes M, C and P Class roads as well as car parks and other such areas where the lighting class is defined by activity So the designer looks to understand the lighting classes that are applicable to the design, and then ensures the appropriate technologies are employed to enable movement between them, such as stepped ballast, CMS controlled ballast/driver etc.

While this step is straightforward and the choice of control equipment will largely depend on what the requirements are for any particular design as well as any budget constraints, the major problem has been understanding how to identify when to adapt the lighting.

RISK-BASED APPROACH PLG08, though a risk-based approach and reference to tables such as Table A.2 of BS 5489-1:2013, shows the approach such that the lighting class can be varied depending upon traffic flow. Consideration should also be given such that when adaptive lighting is applied on main and principal routes it may be necessary to be able to override the switch-off in the cases of: • Accidents • Road works (lane restrictions, diversions) • Events TR 27 referenced the footnote associated with Table 2, Traffic flows within BS 5489-2:2003 +A1:2008 Code of practice for the design of road lighting – Part 2: Lighting of tunnels which enables the designer to undertake an assessment of peak hourly flow against daily traffic flow as follows. This footnote states as follows:

PLG08 19 ‘If the actual value is not known, peak hour traffic can be derived as follows. Average daily traffic (ADT, vehicles per day) is the most used concept in traffic planning and it is always known. Peak hour traffic (vehicles per hour) is in rural areas 10% and in urban areas 12% of ADT. On undivided roads, the number of vehicles per hour per lane can be calculated by dividing peak hour value by the total number of lanes.’

The challenge facing the production of the PLG08 guidance was to assess the approach required to determine switching criteria and to provide ‘simple clear guidance’ and, as mentioned previously, a lot of data was supplied for the panel’s consideration.

The panel therefore looked at the data and developed a ‘time and traffic flow’ graph (and see pages 40 and 41 of the PLG for these) and these roads showed a similar profile in that for 95% of M Class roads reviewed the lighting class could be reduced by one class between 22.00hrs and 06.00hrs. It was then considered there is a trickledown effect through the road hierarchy whereby on Class P roads traffic flows reduced about 30 minutes later.

PLG08 explains the annual cycles for traffic flow that can enable the correct lighting classes to be applied for each task with graphs that indicate the trigger points and how they can be assessed. While the results are specific to each site, there is a clear pattern with peak traffic flows in the morning and evening rush hours.

This methodology can be applied to help apply an adaptive lighting strategy for any highway and the guidance explains a process for the application of this approach across an entire network.

It was clear during the development of PLG08 that there was a high level of member concern regarding the approach

to considering switch off or part-night lighting. Rather than wait for the full PLG to be published, the panel therefore issued an auditable ten-step risk-based approach, the ILP’s ‘Switch Off’ technical information sheet published in April, which should be considered.

CONCLUSIONS In conclusion, and by applying the not wholly inappropriate words of the great Charles Darwin: ‘It is not the strongest of the species that survives, nor the most intelligent, but the one most responsive to change.’

Adaptive lighting is not the only appropriate but the responsible approach when we consider the current pressures on our lighting services. If lighting services do not adapt, they may not survive. The public purse unfortunately is not limitless and, with people looking to evidence ‘best value’, adaptation will be the only way to survive and flourish into the future.

This guidance will help members apply the principles of UEL in a strategic and structured way, one that ensures public safety through optimised lighting solutions.

Allan Howard is technical director lighting at WSP I Parsons Brinkerhoff and Dave Franks is asset manager (public lighting) within the infrastructure asset management team, City Management and Communities, at Westminster City Council.

PLG08, Switch Off, TR27 and, indeed, all the ILP’s guidance documents can be found on the ILP’s website www.theilp.org.uk under ‘Resources’

Adaptive lighting is not only the appropriate, but the responsible, approach when current pressures on lighting services are considered

Lighting Journal June 2016

20 Surge protection of surges that can cause fatal damage to control systems and equipment. The users of electric or electronic equipment and telephone and data-processing systems also face the problem of keeping equipment in operation in spite of the transient overvoltages induced by lightning.There are several reasons for this: • Integration of electronic components makes the equipment more vulnerable • Interruptions of service are unacceptable Transient overvoltages have four main causes: • Lightning • Industrial and switching surges • Electrostatic discharges (ESD) • Nuclear electromagnetic pulses (NEMP) Overvoltages differ in amplitude, duration and frequency. While protection against power surges caused by lightning or handling will require the use of surge protector systems, ESD issues are far more specific and require other adapted solutions.

BOLTS AND BRACES

It’s over 260 years since Benjamin Franklin conducted his famous kite experiment to understand lightning. But the danger to our infrastructure from electrical surge, whether from lightning strike, switching, electrostatic discharges or EMPs, is greater than ever, warns Jeremy Lester

L

ightning strikes probably don’t occur any more now than they did 30 years ago. Yet, the increase in computer-based control systems and their susceptibility to becoming corrupted

Lighting Journal June 2016

or even physically damaged by lightning means we now need to protect many aspects of ‘electronics infrastructure’ more than ever. Furthermore, of course, lightning is not the only source or cause

LIGHTNING Lightning, investigated by Benjamin Franklin’s first research in 1749 (and his famous kite experiment in 1752), has paradoxically become a growing threat to our highly electronic society.

A lightning flash is generated between two zones of opposite charge, typically between two storm clouds or between one cloud and the ground. The flash may travel several miles, advancing toward the ground in successive leaps: the leader creates a highly ionized channel.

When it reaches the ground, the real flash or return stroke takes place. A current in the tens of thousands of amps will then travel from ground to cloud or vice versa via the ionized channel.

At the moment of the discharge, there is an impulse current flow that ranges from 5,000 to 200,000 amps peak, with a rise time of about few microseconds.

This direct effect may be considered as a small factor in damaging electric and electronic systems, because it is highly localized.

The best protection is still the classic lightning rod or Lightning Protection System (LPS), designed to capture the discharge current and conduct it to a particular point. There are also indirect electrical effects as a result of lightning strikes.

The first of these indirect effects is the potential impact on overhead lines.

Surge protection 21 These phenomena generate transients of several kV with rise times in the order of a few microseconds, disturbing equipment in networks to which the source of disturbance is connected.

Some of the direct and indirect effects of lightning strikes

Such lines are very exposed and may be struck directly by lightning, which will first partially or completely destroy the cables, then cause high surge voltages that travel naturally along the conductors to line-connected equipment. The extent of the damage depends on the distance between the strike and the equipment.

The second indirect effect is a rise in ground potential. The flow of lightning in the ground causes earth potential increases that vary according to the current intensity and the local earth impedance. In an installation that may be connected to several grounds (for example, a link between buildings), a strike will cause a very large potential difference and equipment connected to the affected networks will be destroyed or severely disrupted.

The third indirect effect is electromagnetic radiation. The flash may be regarded as an antenna several

miles high carrying an impulse current of several tens of kilo-amps, radiating intense electromagnetic fields (several kV/m at more than 1km).

These fields induce strong voltages and currents in lines near or on equipment. The values depend on the distance from the flash and the properties of the link.

INDUSTRIAL/SWITCHING SURGES This term covers phenomena caused by switching electric power sources on or off. Surges due to switching operations are generally caused by: • Starting motors or transformers • Neon and sodium light starters • Switching power networks • Switch ‘bounce’ in an inductive circuit • Operation of fuses and circuitbreakers • Falling power lines

ELECTROSTATIC DISCHARGES Electrically, a human being has a capacitance ranging from 100 to 300 picofarads, and can pick up a charge of as much as 15kV by walking on a carpet.

If they then touch some conducting object, it can be discharged in a few nanoseconds, with a current of about ten amps.

All integrated circuits (CMOS etc) are quite vulnerable to this kind of disturbance, which is generally eliminated by shielding and grounding.

NUCLEAR ELECTROMAGNETIC PULSES A high-altitude nuclear explosion, above the atmosphere, creates an intense electromagnetic field (up to 50kV/m in 10ns), radiated to a ground area up to 1,200 kilometres in radius.

In the ground, the field induces very large transient overvoltages in power and transmission lines, antennas, and so on, destroying the terminal equipment (power circuit, computer terminals, telephone equipment, etc). The field rise may reach several kV/ns.

While it is difficult to eliminate all overvoltages induced by an electromagnetic pulse, there are ways to reduce them and strengthen the systems to be protected. In spite of the amplitude of the phenomenon, protection can be provided by shielding and filtering/surge protection adapted to NEMP.

Our reliance on electrical equipment means society today needs to protect its electronics infrastructure from lightning strike and other surges more than ever

Lighting Journal June 2016

22 Surge protection EFFECTS OF OVERVOLTAGES Overvoltages have many types of effects on electronic equipment. In order of decreasing importance these are: Destruction • Voltage breakdown of semiconductor junctions • Destruction of bonding of components • Destruction of tracks of PCBs or contacts • Destruction of triacts/thyristors by dV/dt Interference with operation • Random operation of latches, thyristors, and triacs • Erasure of memory • Program errors or crashes • Data and transmission errors Premature ageing • Components exposed to overvoltages have a shorter life SURGE PROTECTION DEVICES So, finally, given all of the above, what is the benefit of using a surge protection device, and how should you choose between the different types?

Surge protection device is a generic name for any device that protects against voltage surges. It is a recognised

and effective solution for the overvoltage problem.

For greatest effectiveness, however, it must be chosen according to the risk, and installed in accordance with the applicable standards.

Because of the diversity and importance of transients, standards organisations have created specifications for testing the effects of overvoltages on equipment. The phenomena were first characterised and a series of standardised waves created (1.2/50μs voltage wave and 8/20μs and 10/350μs current waveforms), then a number of standards defining surge arrester performance were issued, amongst them: Surge protectors for low-voltage installations: • BS EN 61643-11 • EN 61643-11(Europe) • UL 1449 4th edition (USA) • IEC 61643-11 (International) Surge Protectors for telecoms equipment.

• IEC 61642-21 (International) • ITU-T recommendations K11, K12, K17, K20, K21, K36 (International) • UL 497 A/B (USA)

Different surge protection device types: AC power surge protectors are split into three categories

Lighting Journal June 2016

TYPE OF SURGE PROTECTOR AC power surge protectors are split into three categories by IEC 61643-11 and EN 61643-11 standards, with the following three classes of tests. These different tests depend on the location of the surge protector in the AC network and on the external conditions.

Type 1 Type 1 surge protectors are designed to be installed where a direct lightning strike risk is high, especially when the building is equipped with external lightning protection system (LPS or lightning rod). In this situation, EN 61643-11 and IEC 61643-11 standards require the Class I test to be applied to surge protectors: this test is characterised by the injection of 10/350μs impulse current in order to simulate the direct lightning strike consequence.

Therefore, these Type 1 surge protectors must be especially powerful to conduct this high-energy impulse current.

Type 2 Type 2 surge protectors are designed to be installed at the entrance of the installation, in the main switchboard, or close to sensitive terminals, on installations without LPS (lightning rods).

These protectors are tested following the Class II test from IEC61643-11 or EN61643-11 standards and based on 8/20μs impulse current injection.

Type 3 In case of very sensitive or remote equipment, secondary stage of surge protectors is required: these low energy SPDs could be Type 2 or Type 3.

Type 3 SPDs are tested with a combination waveform (1,2/50μs 8/20μs) following Class III test).

Jeremy Lester is technical director at Switchtec, which is the UK distributor for Citel surge protection equipment

Surge protection from Switchtec

Type 1 surge protectors are designed to be installed where a direct lightning strike risk is high. Type 2 surge protectors are designed to be installed at the entrance of the installation, on installations without lightning rods. In the case of very sensitive or remote equipment, a secondary stage of surge protectors is required, these can be Type 2 or Type 3.

Surge protection devices for: * AC power * Photovoltaic * LED lighting * Dataline * Telecom * Coaxial RF SPDs

from Reliability in surge protection Switchtec Ltd, Brooms Road, Stone Business Park, Stone, Staffordshire, ST15 0SH Tel: 01785 818600 Fax: 01785 811900 E-mail: sales@switchtec.co.uk Web: www.switchtec.co.uk

24 Theatre lighting

STAGE MANAGED An LED upgrade has given lighting technicians at Manchester’s The Lowry theatre greater control and flexibility, saved on energy costs and created a more attractive ambience for visitors.

Lighting Journal entered stage left

‘The project ran from June to August. One of the challenges was we had to work around the Lowry’s opening hours because it did not shut for the duration; we had to work alongside the Lowry’s schedule. That meant the contractor often had to get in at night-time so as not to cause too much disruption,’ he says.

So, what’s changed?

For the main theatre lighting, Protec LED downlights have been installed in a range of lumen outputs to act as primary lighting for both the theatre halls. Using Lumileds LEDs and anodised aluminium reflectors, the luminaire offers LORs in excess of 90% in lumen outputs of up to 3000lm.

S

DIMMING OPTIONS Because of the need for a range of dimming options, the luminaire was supplied with high-frequency dimming drivers and was commissioned to give AV technicians full access from the halls’ control rooms.

For accent lighting, front of house and the box office, Pro-Light Mini high-quality LED spotlights were chosen.

These replaced the existing accent lighting for the theatre hall, so as to safely guide patrons to their seats and add to the inviting atmosphere and are also the key lighting effect within theatre foyer. Dimmable front-of-house lighting was also required to allow The Lowry’s technicians to easily and accurately dim the lights from the audio-visual control rooms.

The Pro-Light Mini luminaire combines Tridonic COB modules with aluminium faceted reflectors, again to cut down energy and maintenance (such as frequent lamp change) costs. For the theatre halls and box-office, it was provided in a round fixed body and angled at 40°, with a specular reflector to direct the lighting in key

ince opening in April 2000, The Lowry has been the beating, theatrical heart of Manchester’s Salford Quays regeneration. With two main theatres (the Lyric and the Quays) along with studio space and galleries, the complex, designed by architect Michael Wilford and constructed by Buro Happold, now attracts nearly a million visitors a year.

Last year, manufacturer Dextra Lighting was approached by management and property consultancy AA Projects to oversee a lighting upgrade for the site, specifically an upgrade to LED, which it was hoped would provide greater flexibility in lighting control, be more efficient and save on energy and maintenance costs plus, of course, create an attractive, suggestive atmosphere and ambience for theatre-goers.

One of the headaches, however, as specification manager Nick Southern recalls, was that the site needed to remain open and functioning while the upgrade was carried out.

Lighting Journal June 2016

coming to brighton beach

Up to 60% energy savings Virtually maintenance free Smart City compatible Excellent light control Plug & Play power cell 99% recyclable

www.Orangetek.co.uk

Tel:01283 716 690

sales@orangetek.co.uk

26 Theatre lighting areas. Centralised high-frequency dimming controls and integrated three-hour maintained emergency functions were also provided. Pre-wired leads and simple retractive spring clips were used to help minimise fitting times, as were made-to-measure infill rings to assist with installation into the ceiling’s existing cut-outs.

BACKSTAGE AREA Finally, in the dressing room and back-of-house areas, the company’s Amenity Decorative LED bulkhead not only lowered energy consumption by approximately 60% compared to the existing lighting without compromising on performance, it also added an appealing decorative touch to the performers’ dressing rooms.

Alongside this, the IP65-rated Hydra LED was used to offer a low-maintenance solution for the remaining back-of-house areas, such as store rooms and backstage circulation areas.

All the LED products were provided in a warmer C83 colour temperature to suit The Lowry’s desired aesthetic.

‘Looking back, it was quite a tricky project,’ says Dextra’s Nick Southern. ‘It also incorporated seven to eight different manufacturers, so another challenge was to ensure we were getting the continuity of light we wanted running through the project.

‘But, we recognise that, if you can provide solutions for a space like The Lowry, nothing is impossible!’ he adds.

Dressing rooms (above): LEDs have cut energy consumption by approximately 60%

High-quality LED spotlights have replaced the existing accent lighting for the theatre hall, along with dimmable front-of-house lighting

Lighting Journal June 2016

Good lighting increases security!

Be inspired by timeless design – Made in Sweden Contact us today: Phone: +44 (0) 1952 250800 Email: info@aura-light.co.uk www.aura-light.co.uk / www.noral.se/en

1996

1999

2002

2006

2009

2012

2016

TSRGD isn’t the only thing changing this year...

A lot has changed over the last 20 years at TMP and the company is quite different from it’s humble beginnings.

To mark the changes in the nature and culture of our business and in line with our 20th Anniversary, TMP have a brand new look.

www.tmp.solutions

Designed to take the company through the exciting plans ahead the new look TMP brand gives the company a new fresh feel and we’re really proud of our new branding. We hope you like it too!

TMP Ltd Unit 4 • Nightingale Road • Horsham • West Sussex RH12 2NW T 08456 80 80 66 F 08456 80 80 77 E info@tmp.solutions

Celebrate with us!

As we celebrate 20 years in business, we’d like to pass on our thanks for helping us reach this milestone year.

During the whole month of June 2016, we are offering...

• 20% off the list price for TMP Evo-S Solar Powered Bollards • 20% off your current supplier’s list price for Flexible Chevrons

To take advantage of this offer please speak to our Sales Team on 08456 808066, your local Area Technical Manager or email info@tmp.solutions quoting ‘Celebrate 20’ and we’ll do the maths.

Don’t forget that you can also take advantage of our ‘Fit & Forget’ solution for our complete range of bollards, meaning that if you buy the bollard, we will maintain it for up to 4 years*

20off %

TMP Ev o Powere -S Solar d Bollar ds Flexible Chevron s See abo ve

*Subject to T&Cs

30 2016 Lighting Design Awards

FORTIES STYLE The industry’s prestigious Lighting Design Awards, supported by the ILP, celebrated its 40th anniversary in May. Lighting Journal was there

The Night of Heritage Light: the Society of Light and Lighting event won Heritage Project of the Year

A

person ‘who has created work of outstanding creativity and quality’, ‘truly a man of many parts’, ‘a stellar talent of boundless creativity’. These were just some of the plaudits for Gerd Pfarré, this year’s winner of the coveted Lighting Designer of the Year award, as announced at the 2016 Lighting Design Awards in May. The awards, which are supported by the ILP, were held at a glittering black tie ceremony at London’s Hilton Park Lane Hotel and this year were celebrating their 40th anniversary.

Lighting Journal June 2016

There were 14 categories and this year, in recognition of the anniversary, the celebration of ‘40 under 40’, or 40 up-and-coming designers aged under 40 to watch out for (see panels for full details).

Gerd Pfarré founded Pfarré Lighting Design in Munich back in 1998. The independent lighting consultancy is renowned for creating customised lighting solutions, especially daylightand electrical lighting-based projects for architecture, landscapes and cityscapes. Collecting his award, Gerd

Gerd Pfarré: Lighting Designer of the Year

was to the point in his thanks, saying: ‘I am just thrilled, thank you.’

His practice also won this year in the Retail Project of the Year category, for its work on the Gerber Shopping Mall in Stuttgart, Germany.

Another highlight of the evening was a speech by legendary lighting designer, and one of this year’s judges, Howard Brandston.

Howard’s landmark projects include, among others, relighting the Statue of Liberty and the lighting of the Petronas Towers in Malaysia.

2016 Lighting Design Awards 31

THE WINNERS Lighting Designer of the Year Gerd Pfarré Light Art Project of the Year: ROIL, New York, USA – Christine Sciulli

Lighting Design Practice of the Year Arup Architect of the Year Diller Scofidio + Benfro Architectural Luminaire – Exterior Shockwave, Alfa – Saco Technologies Architectural Luminaire – Interior Tile – Cooledge Lighting Heritage Project of the Year Night of Heritage Light, UK – Society of Light and Lighting Retail Project of the Year Gerber Shopping Mall, Stuttgart, Germany – Pfarré Lighting Design Light Art Project of the Year ROIL, New York, USA – Christine Sciulli

The UAE Pavilion, Milan Expo 2015: the David Atkinson Lighting Design project showed ‘great precision and attention to detail’, according to the judges

Integration Project of the Year Cepsa Flagship Station, Avila, Spain – AUREOLIGHTING Daylight Project of the Year The Broad, Los Angeles, USA – Arup Community and Public Realm Project of the Year Szczecin Philharmonic Hall, Poland – Anoche Workplace Project of the Year McLaren Thought Leadership Centre, Woking, England – Cinimod Studio Hotel and Restaurant Project of the Year Baccarat Hotel, New York, USA – Isometrix Lighting + Design

The Broad, Los Angeles: winner of Daylight Project of the Year, the judges described Arup’s project as being ‘of great sophistication’

Leisure Project of the Year The UAE Pavilion, Expo 2015, Milan, Italy – David Atkinson Lighting Design

Lighting Journal June 2016

32 2016 Lighting Design Awards

The Baccarat Hotel, New York: the project by Isometrix Lighting + Design, winner of Hotel and Restaurant Project of the Year Architectural Luminaire – Interior Tile – Cooledge Lighting

THE JUDGES Ben Adams, Ben Adams Architects Howard Brandston, Brandston Partnership Phil Coffey, Phil Coffey Architects Jill Entwistle, Lighting magazine Neil Knowles, Elektra Lighting Professor Margaret Maile Petty, Queensland University of Technology John McRae, Orms Roger Narboni, Concepto Steven Scott, light artist Dean Skira, Skira Sally Storey, Lighting Design International Bob Venning, former head of lighting, Arup Professor Richard Weston, Richard Weston Studio

The Gerber Shopping Mall, Stuttgart: winner of the Retail Project of the Year, the project by Pfarré Lighting Design, was one of ‘great precision’. The practice’s Gerd Pfarré was also crowned Lighting Designer of the Year

FORTY UNDER FORTY To celebrate its 40th anniversary, this year’s awards also celebrated ’40 under 40’, 40 lighting designers aged under 40 who, the judges argued, will be ones to watch in the years to come.

The 40 were part of a new generation, the judges said, that were ‘more driven, diverse, collaborative, curious, global, tech-savvy

Alessandra Acciarresi, Light Touch Stuart Alexander, Michael Grubb Studio Janna Aronson, RTLD Lighting Design Abdulaziz al Azem, Design Tech Services Emrah Baki Ulas, Steensen Varming Francesca Bastianini, Lumen Architecture Alessandra Bertolini, artec3 Sergio Boccio, Sergio Boccio Lighting Design Cashel Brown, Nulty+ Chiara Carucci, ÅF Lighting Star Davis, Arup New York James Duff, Arup Waleed Fakousa, CD+M Clementine Fletcher-Smith, Speirs + Major

Lighting Journal June 2016

and passionate than ever’. The 40 were selected from 20 countries through a combination of being nominated by principals, recognised through winning awards and competitions, and some were selected by a panel of experts as ambassadors for the industry.

The forty to watch were:

Kevin Frary, Fisher Marantz Stone Shane Grist, DPA Miguel Jaime, Illumination Works Christopher Knowlton, Electrolight Pernille Krieger, Steensen Varming Chris Lowe, BDP Vasiliki Malakasi, Idea Design Erik Lykke Nielsen, Aarhus University Rachael Nichols, independent Elga Niemann, Atelier Ten Gavriil Papadiotis, Lighting Design International Vasiliki Papakammenou, PKV June Park, Horton Lees Brogden Ben Porter, Hoare Lea

Amy Rossetti, Visual Energy Anna Sbokou, Anna Sbokou Lighting Design Sabine de Schutter, Studio de Schutter Luke Smith-Wightman, Fine Science Amir el-Sobky, SPECS Joshua Spitzig, Focus Lighting Maria del Pilar Toro-Ortiz, studio mdpto Despina Tselegkaridou, Foster + Partners Joe Vose, Light Bureau Liz West, Liz West Studio Rachel Winfield, Loop.pH Cehao Yu, Aecom

IT’S NOT JUST LIGHTING...

...IT’S AMBIENCE.

LET’S CREATE THE GREATER OUTDOORS Our integrated lighting ranges provide more than just a single function.

Utilising innovative design and technical precision, our products have everything you need to create spaces that people flock to.

Whatever you’re looking for, whether it’s a specific product or a certain theme, you’ll find everything you need to create the greater outdoors.

Discover more at marshalls.co.uk/greateroutdoors

34 Highway lighting

KNOTTY PROBLEM I When Peterborough City Council decided to regenerate one of its major roadways as a tree-lined avenue, an innovative lighting solution was arrived at: wooden-clad lighting columns. But it was not without its challenges, as engineer and YLP member Matt Fisher explains

have been a lighting designer for nearly nine years and currently work for Skanska as an assistant engineer based on the Peterborough Highway Services contract, a partnership between Peterborough City Council and Skanska. Recently I also have taken on the role of the London and south east representative for the ILP’s Young Lighting Professionals (YLP).

Like many other lighting designers I speak to, my day-to-day job involves designing street lighting for both residential and major highway schemes.

I consider myself to be in a lucky position that I work on a contract where the local authority is in the process of regenerating a number of public realm areas around the city, so I get the opportunity to work on projects that are far from the norm.

WOODEN COLUMNS One such project, and the focus of this article, was to design the lighting as part of a scheme to improve Bourges Boulevard, a main road in Peterborough that separates the rail station and the city centre. The overall plan for the scheme was to create a tree-lined avenue to act as a major gateway into the city, to welcome those arriving by train, and to stimulate regeneration and commercial growth in the area.

Peterborough City Council had a number of ideas relating to the street lighting – in particular, they had various ideas as to the design of the lighting columns they wanted to use to light the road.

One suggestion was to use a Palm Tree-style column with multiple lanterns.

During discussions with the council, we, as a design team led by my manager Steven Biggs, suggested the use of wooden lighting columns that would blend in and work well with the overall concept of a tree-lined avenue.

View of Bourges Boulevard in Peterborough prior to the improvement

Lighting Journal June 2016

Highway lighting 35

The road was designed to meet a P1 lighting class, with junctions designed to a C2 class.

This was difficult to achieve because of the tree-lined nature of the scheme. The blocking effect of the trees, which were to have a 6m clear stem, had to be taken into account as well as the movement of pedestrians Some of column colour samples as supplied to the council

Once the idea to use the wooden columns was agreed with the council, we enlisted the services of Urbis SchrĂŠder to help design the visual appearance of the column, including the lantern and bracket arrangement.

There were two key things we had to decide about the columns. First, if these should be made of solid wood or to have a steel core with wooden cladding.

And second, to choose the colours of the wood and the base. For this, we were supplied with samples, from which the council team could make the final decision.

THE DESIGN With the lighting column colours and materials agreed, along with the Urbis Piano lantern, the design work commenced.

The brief for the design was simply to provide lighting for the highway to meet with current British standards.

Therefore, the road was designed to meet a P1 lighting class, with junctions designed to a C2 class. This was difficult to achieve because of the tree-lined nature of the scheme. The blocking effect of the trees, which were to have a 6m clear stem, had to

be taken into account as well as the movement of pedestrians. The majority of the columns needed to be located at the back of the footpath and none could be more than 6m in height. The existing lighting was made up of 135W low pressure sodium lanterns positioned on 10m columns.

To address these challenges, the lighting columns were designed to be located between the trees, at an average 14m spacing, with 48 LED lanterns. In total, the design included 36 lighting units. It was my job to design a full private cable network, including

Lighting Journal June 2016

36 Highway lighting

feeder pillar schematic drawings that, along with full detailed design drawings and specification documents, were submitted to the contractor to install as part of the overall scheme.

INSTALLATION Early on in the installation stage of the scheme it became apparent there were some minor issues with the columns.

After being installed, the wooden cladding section began to twist around the steel core of the column. This caused an issue as a number of the columns were having repeater signs attached to these cladding sections, which meant the signs potentially would not be visible to oncoming motorists.

The team discussed this with Urbis Schréder and its supplier and the issue was quickly corrected. This did create another minor issue, which caused the mastic that bound the two sections of cladding together to pull apart. Again,

however, good communication between everybody involved corrected the fault quickly and the scheme was completed on time and within budget.

END RESULT The completed scheme was a success and has become a real focal point.

Andy Tatt, head of highway services at Peterborough City Council, pretty much sums it up. ‘Peterborough City Council is committed to improving its highway street lighting infrastructure and Bourges Boulevard is a key project to transform the area into a positive gateway into the city, supporting redevelopment and improving access for pedestrians into the city centre. We are delighted with the results of the innovative street lighting design.’

From my perspective, the lighting has provided a great solution to what was a testing brief, leaving the road lit to the correct levels yet also with a very

aesthetically pleasing layout that has blended into the whole scheme.

And the experience as a whole has been very valuable and positive.

As Steven Biggs, senior engineer at Skanska, has also put it: ‘Working on this particular project gave Matthew the opportunity to explore innovative solutions with Peterborough City Council, who were open to alternative design ideas for a unique installation.’

As a designer, I was excited to work on this project and was, naturally, very pleased with the outcome; it was good to get some great feedback!

Working on these types of schemes reinforces my enthusiasm to progress in my career as a lighting designer, and I very much look forward to working on more projects.

Matt Fisher is an assistant engineer with Peterborough Highway Services

View of the completed scheme – daytime view and (right) at night. The project has a very aesthetically pleasing layout

Lighting Journal June 2016

Maintaining Maintaining city citylighting lighting Without Withoutscouting scouting the thestreets streetsatatnight night Making Making lighting lighting system system maintenance maintenance efficient efficient andand responsive responsive while while cutting cutting costs costs is no is longer no longer as as impossible impossible as itas may it may seem. seem.

By combining By combining energy energy efficient efficient LEDLED street street lighting lighting withwith cellular cellular communications communications andand cloud cloud based based lighting lighting management, management, we can we can create create connected connected networks networks thatthat transform transform the the wayway street street lights lights are are monitored, monitored, managed, managed, andand maintained. maintained.

Control Control street street lights lights individually individually or inorgroups, in groups, set set dimming dimming schedules, schedules, andand monitor monitor energy energy usage… usage… remotely. remotely.

With With automatic automatic failure failure notification, notification, youyou cancan send send crews crews when when andand where where theythey are are needed needed andand eliminate eliminate expensive expensive scouting scouting rounds. rounds.

TheThe result result is more is more efficient efficient maintenance maintenance - and - and better better lighting lighting experiences experiences - at-aat lower a lower cost. cost.

Philips Philips connected connected lighting lighting systems: systems: making making street street lighting lighting more more responsive responsive andand efficient efficient at the at the same same time. time.

JustJust oneone of the of the many many ways ways we’re we’re taking taking lighting lighting beyond beyond illumination. illumination.

CityTouch CityTouch ‘Best ‘Best product product of the of the Year’ Year’

SeeSee how how we we take take lighting lighting beyond beyond illumination illumination at philips.co.uk/publicspaces at philips.co.uk/publicspaces

38 Inside the ILP: Lightscene

Photograph: Dean Matthews Photography

SMART THINKING

More than 100 members came to the ILP’s ‘Lightscene’ CPD event in Sunderland in April, where they gained some fascinating insights into the future ‘smart city’ agenda.

Lighting Journal headed to the Stadium of Light to listen in

S

underland’s iconic Stadium of Light was the venue for this year’s ILP Lightscene CPD event in April. It was a gloriously sunny day, which may well have helped attendance numbers, but also the fact the theme of the day – ‘Smart Cities and IoT’ – is a seriously hot topic within the industry at the moment proved attractive to members.

So attractive, in fact, that more than 100 ILP members came to hear a range of keynote speakers as well as check out the more than 23 exhibitors.

As a result, this year’s Lightscene had ‘exceeded expectations’, a delighted ILP chief executive Richard Frost said after the event.

There were three free CPD sessions during the day, followed by a fourth session later in the afternoon specifically for Premier corporate members (see panel).

First up was John Fox, managing director of Lucy Zodion, who, in a wideranging presentation, explored the meaning of what we term ‘smart city’, how the twin pressures of urbanisation and tightening budgets could be

Lighting Journal June 2016

catalysts for change, and the potential role of the lighting column within this agenda.

‘Smart cities are a huge and hot topic at the moment, but everyone carries away from them something very slightly different to everyone else. It isn’t just a technical term, it doesn’t just relate to technological solutions, but more broadly relates to a lot of social matters going on,’ he pointed out.

The notion of ‘smart’ technology was not in itself new, either. To the Victorians, for example, the innovation of gas lighting down Pall Mall would have been thought of as ‘smart’. ‘They also then saw the introduction of electric lighting, and doubtless that was a smart and safe step to move away from the gas lighting,’ he said.

But the development of LED could well be a game-changer when it comes to smart cities, he suggested. But there will be a range of pressure, obstacles and catalysts to this agenda, including financial pressures, municipal and community leadership, the need for infrastructure (IT as well as physical),

governance and security, he argued.

‘So what will smart cities deliver?

They’re going to increase the scope of services, i.e what people do and why they do them. So that could be new services or it could be improving the performance of existing ones. They’re going to improve the efficiency, so that could be cost, space utilisation, material usage, fuel, lots of these things. And the fluffy end of it is the societal impact, in the sense that smart cities should deliver a more engaged and improved society but one that allows greater utilisation of space,’ John highlighted.

And the lighting column could be at the heart of this change. ‘They’re every 30m, they’re where people are, they’re generally publicly owned, they suit radio communications, they’re nice and tall, they’ve got space for antenna on the top. More to the point, they’re connected to electricity. So they’re nice points to do other things with.

‘As users, lighting engineers, contractors and consultants, the impact of smart will come over. And then there’s a further question: what

Inside the ILP: Lightscene 39 will happen to the streets of the future, will we even need street lighting?

With autonomous vehicles, why light the routes? There’s not the need for visibility for the vehicle, though there may be for pedestrians. But I am still guessing that the pole in the pavement has still got its place and will continue for many years to come. I do see the street light as the thing around which smart cities will become focused,’ he concluded.

ROLE OF CMS Following John was Mark Cooper, formerly national sales manager for iGuzzini and now an independent consultant and ILP Immediate Past President. In his presentation, he looked at how the smart/connected city agenda may mean lighting professionals need to rethink the role, and use, of CMS. The robustness of the IT infrastructure was likely to be a critical component, he pointed out, highlighting the variability of the Wi-Fi signal just within the Stadium of Light. ‘How are we going to develop the smart city going forward when we can’t even keep a robust Wi-Fi connection within a single building? So there are a lot of challenges to ensure we get to where we want to be, but one of them is that we must have robust IT connectivity.’

Mark then outlined some of the areas where smart cities could, and already are, making a difference.

These included street lighting control, or being able to dim or monitor lighting as and when we want to, and vehicle tracking technology. Dynamic roadsideto-vehicle communications and charging points for electric vehicles (perhaps even within the road itself) were another potential benefit.

Environmental monitoring, for example of air pollution, flooding or

Smart cities are a huge and hot topic at the moment, but everyone carries away from them something very slightly different to everyone else.

It isn’t just a technical term, it doesn’t just relate to technological solutions, but more broadly relates to a lot of social matters going on weather, and traffic flow and parking management could be other benefits, along with more information around public transport.

We will see more connected offices – with occupancy sensors and individual heating, lighting and ventilation controls – and homes, he predicted. Mark then concluded by outlining just how a future connected home of the future might work.

‘The home security system lets you know when your kids have got home from school because it monitors that they’re in the building. As they grab an afternoon snack, the kitchen takes an inventory and sends a shopping list to you and your local supermaket.

‘As you walk into the supermarket, someone is already preparing and packing the goods for home delivery via autonomous vehicle or drone. Or as you come into the supermarket yourself, it can actually bring them out to your car for you.

‘Your smart watch is connected to a system that senses and analyses real-time health indicators and alerts you to a suggested dinner menu that it has just created, based on your family’s nutritional needs, which it has been monitoring over the last week or so. If you signal your approval to that suggested dinner, it alerts the home to warm the oven before you get home and detects your car as you approach, turning on the outside lights and opening the front door to welcome you home.

‘All of this sounds very far-fetched, but this technology is available now. You can do all of this now, there are homes that do this,’ Mark said.

ASSET CONTROL The final presentation of the day was given by Stuart Wilson, director at Urban Control. Stuart’s presentation looked at the issue of asset control within the smart city agenda.

He examined the current methods of asset control available at a city level and discussed the opportunities now opening up to lighting professionals as the smart city ‘revolution’ gathers pace.

During his presentation, he also addressed some of the key, and ongoing, questions many lighting professionals have around the whole smart city agenda, including the practical difficulties of actually making smart city technology work in a sustainable and reliable way, and some of the key barriers to entry in this context.

PREMIER SESSION Lightscene was the debut for the ILP’s first ever Premier corporate members’ CPD event.

The ILP’s Premier membership category was launched last year, offering a range of benefits for organisations above and beyond standard ILP membership. Currently some 15 leading lighting organisations have signed up to become Premier members.

One of these extra benefits is bespoke CPD which, in the case of Lightscene, meant Premier and regular ILP members got the opportunity to attend a 20-minute CPD presentation from Simon Newcombe, business development manager at Urbis Schréder.

Simon continued the general focus on smart cities and connectivity, with his presentation outlining how the notion of the ‘connected city’ is fast becoming a ‘need-tohave’ rather than simply a ‘nice-to-have’ for town planners and municipalities.

Increasing urban populations are increasing demand for technology such as beacon, audio, motion sensor, facial recognition, pollution measurement and control and rapid charging points for electric vehicles and bicycles, he argued.

There was then, in turn, an opportunity for these technologies to be integrated into

multi-functional lighting projects, something that had the advantage of meaning such technology could often be incorporated into or bolted on to existing infrastructure, Simon suggested.

Lighting Journal June 2016

40 Inside the ILP: ILP News

BRIGHTON TO PUT ‘FUTURE OF LIGHTING’ IN THE SPOTLIGHT

No less than the very future of lighting will be under discussion at this month’s ILP Professional Lighting Summit in Brighton.

This year’s Summit takes place from 15-16 June at Brighton’s Waterfront Hotel, and is the first time the ILP has held a summer Summit rather than one in the autumn.

Members are being urged not to delay in booking their places, as half the delegate places had already gone by mid-way through May. More CPD presentations have now been confirmed for the two days, key among them being a roundtable discussion, chaired by ILP Vice President, Events, Scott Pengelley on, very simply, ‘the future of lighting’.

Another event to look out for will be a smart cities ‘essential hour’. This will bring together Dr Jon Lewis, director of strategy at Telensa, Simon Newcombe, business development manager at Urbis Schréder UK and Chris Angell, electronic product designer at Pudsey Diamond to discuss topics as diverse as the scalability of the smart city, how connectivity could save the town centre, and whether there is space for solar within the smart city.

Top lighting designer Michael Grubb will be talking about ‘telling stories with light’. Michael will outline his studio’s approach to public engagement and how local community groups can help shape, deliver and even maintain new exterior lighting schemes. In another presentation, the University of Leeds’ Dr Kelli Zezulka will examine the tension for the lighting designer of the need to speak in two distinct languages: ‘artistic’ and ‘technical’.

Inessa Demidova, lighting designer at Arup, will give a presentation on the practical implementation of circadian lighting in office environments, including arguing for a greater discussion to be had on how lighting professionals can better deliver circadian lighting schemes.

Claire Hamill and Anna Sandgren from Nulty Lighting will examine optimum light source specifications for foundation colour matching within cosmetics stores and concessions.

And Alistair Scott, managing director at Designs for Lighting, will outline the business case for LED street lighting.

Alistair will argue that, while many local authorities have started or are considering

large-scale replacement programmes to convert their street lighting to LED lighting, this process is fraught with potential pitfalls.

For the answers to all these questions, and more, head to Brighton from 15-16 June.

Full details of the programme and how to book your place can be found at: https://www.theilp. org.uk/events/about-the-professional-lightingsummit-2016/

NEW GUIDANCE NOTES The ILP is developing a range of new, shorter Guidance Notes for members.

These will be online guides that are shorter than Professional Lighting Guides and which will be able to be downloaded from the ILP website, www.theilp.org.uk, as PDFs. They have been written by members of technical committee under the direction of Haydn Yeo, VP Technical.

It is hoped the first guides will be up online during June.

DARK SKIES AWARD

A

Cov

a Wals Nea

Ri

Lighting Journal June 2016

Soon after settling in Moffat, Jim was asked to investigate options for an International Dark-Skies Association Dark Skies Park application for the nearby Galloway Forest. His work led to the creation of the gold award Galloway Forest Dark Sky Park in 2009, the first such location in the UK. That success led to further work on behalf of a number of UK organisations, including Exmoor National Park Dark Sky Reserve and Sark Dark Sky Community in 2011, Brecon Beacons National Park and the combined Northumberland National Park and Kielder Water and Forest Park, in 2013.

This, in turn, was followed by an award for Snowdonia National Park in 2015 and then Moffat’s itself this year.

eiro n a J o de

Congratulations to ILP Fellow and lighting consultant Jim Paterson, who has been awarded the prestigious Joy Griffiths Award from the British Astronomical Association’s Commission for Dark Skies.

Jim, whose work to secure ‘Dark Sky Community’ status for his home town of Moffat in Scotland was highlighted by Lighting Journal in April, received the award to recognise his ‘outstanding and meritorious work on behalf of darker skies’.

He began his lighting career at Lanarkshire Council and then Glasgow Corporation but for many years he worked in the West Midlands as a local authority engineer and later as partner with Peter Wright in LCADS, the consultancy they set up in 1993.

Le

Harr

WIRELESS LIGHTING CONTROL DESIGNED FOR SMART CITIES

Centralised lighting controls pay for themselves in lower energy and maintenance costs, and they future-proof LED investments by providing ongoing adaptation of local lighting levels. But with Telensa PLANet, the city’s lighting controls are powered by a dedicated Smart City network. This provides a low-cost route to add new wireless sensors such as traffic monitoring or new end-to-end applications like smart parking.

Add sensors to lighting

Telecell controlled lighting

Parking management

Add sensor apps to UNB network

Connect to Smart City platforms

UNB network

Traffic monitoring

Central management system

Environmental alerts

Citizen engagement

ie Sheff

ld

K erby D en h z n e ire h s Sh k c i Warw idgeshire shire r n Camb thamptto hai g n a Nor Sh

y Dudle

Mins

en d est c m i n a e o C t L t ta Su ex Atlan tersburg nah Ess cow Meet us at s e n o P a .

St Sav ckney M emouth n o n Lond aolo Ha Bour ington ash Sao PickTelensa PLANet is theW world’s deployed solution for Gatw most t ring n e e v a w H management, streetlight y Gwireless r t n u e a v innovations such enintroducing a l B t as GPS, utility-grade metering, l ham bo al l g a n i T k t or automatic constant Wo lightteoutput, hire s r e Cambridge UK ath P strimming r i and asset management s h e c r u e t lo integration. eices ingsystem ue ham G aerphilly v Call 01799 533200 e l l e B C k Birm l Email enquiries@telensa.com ffo ter u s S a c Visit telensa.com g n r o D e r i s risbu e h ool Berk ords P f t t s r e e H W ire h Br

ne igh Ju ton • 15 & 16

42 Independent Light on the lighting past design

SWITCH IN TIME It is commonly assumed photoelectric cells usurped the time switch as the controller of choice from the 1950s onwards. Yet ‘light actuated switches’ had, in fact, been manufactured and marketed for decades, as a chance discovery revealed to Simon Cornwell

The Radiovisor Mark V control unit. This was first marketed in 1938 and was similar to the unit discovered by the lighting engineer many years later

A lighting engineer once contacted me about a weird artefact he’d discovered in the base of a redundant lighting column. The column in question was situated in the centre of a busy roundabout and it piqued his curiosity.

The column was clearly incongruous; a 1930s patterned, 15ft column now marooned in the centre of a busy A-road junction, and any lantern and bracket had long since gone.

Levering open the rust-encrusted door at the base of the column revealed an ancient cut-out and a large cast-iron box. This mystery box with the legend ‘Radiovisor’ wasn’t powered, and its load, presumably fed by the two wires which disappeared into the heights of the column, was gone. Satisfied this relic was doing absolutely nothing, he removed the box and made everything safe.

However, rather than consign the box to history and throw it in the recycling skip, he decided to have a closer look.

ALTERED RESISTANCE After prising the rusted cover open, he was surprised to find it stuffed with ancient electronic components, including a fragile and still complete neon-lamp. Researching the legend Radiovisor revealed it to be the name of a long-forgotten company that manufactured ‘light actuated switches’.

What he’d just found was an extremely rare example of a 1930s photoelectric cell.

The fact certain components, particularly those of selenium, altered their resistance under various levels of light was well known. However, the tiny fluctuations in voltage they produced remained a laboratory curiosity, as the ability to amplify the signal where it could actuate contactors, or other circuits, was far trickier.

Thermionic valves offered a solution. But their fragile glass construction wouldn’t have stood

Lighting Journal June 2016

This refuge lantern was installed in Chiswick in 1936. The Radiovisor control unit can be seen externally mounted on the mid-section of the column; the tall cylindrical selenium cell is fixed to the apex of the bracket

much of a chance if fitted near a road; many manufacturers supplied anti-vibration springs for their lamp mountings, as vibrations from traffic would shatter the lamps. Thermionic valves wouldn’t have stood a chance, so the use of photoelectric control was limited.

ELECTROMECHANICAL CIRCUIT Radiovisor dispensed with the requirement for these fragile components by developing an ingenious electromechanical circuit to actuate a switch at a pre-determined lighting level. The selenium cell was connected up as a voltage divider, the other resistance connected to a capacitor and a neon lamp – the latter called the ‘snap switch’ which gave an indication of its function.

As the lighting level dropped, the voltage across the selenium cell dropped, so the corresponding voltage across the other resistance rose, charging the capacitor, which was wired in turn to the neon lamp.

Once the capacitor reached 90V, it hit the starting voltage of the neon lamp, which glowed brightly and briefly as the capacitor discharged through it. This circuit briefly turned on a relay which (a) closed or opened the main lighting circuit and (b) reserved the connections of the voltage divider. Hence the switch would now actuate when then the lighting levels now rose.

It was certainly clever, but it was more expensive than the ubiquitous clock controllers and time switches it was intended to replace, and there was the additional problem of where to mount the selenium cell.

While Radiovisor had solved the complexity of requiring amplification and switching circuits with the neon lamp, they still hadn’t solved the fragility issues, as a main component was still constructed from glass.

ARRIVAL OF THE TRANSISTOR Nevertheless, the unit was popular enough to be installed by some lighting authorities, and the firm boasted lighting 180 miles of the metropolitan areas of London in the 1940s alone. But it never gained the popularity achieved by the time switch.

By the next decade, the transistor had been introduced, the more familiar compact photoelectric cell appeared with its all electronic switching, and so the ingenious electromechanical solution produced by Radiovisor became obsolete.

To find a complete unit more than 60 years later was a small, but important, historical discovery. It eventually dawned on me that the column was complete and had never supported a lantern; the entire column was effectively a photoelectric cell and was probably used to switch the guard posts on and off around the roundabout.

The two leads that disappeared up the column weren’t there to power a lamp; they were connected to the selenium cell, which was hopefully still mounted in the top of the column.

Therefore, I suggested to the engineer he revisit the roundabout to see if the cell was still there, and perhaps rescue it so a whole working example could be retrieved. It wouldn’t take much: a thorough cleaning, oiling, and perhaps replacement of the capacitor.

I never heard back but I hope one example, of a rare early photoelectric control for street lighting, was saved.

One for all XYLUX® LS is not another off the shelf emergency surface mount

luminaire. XYLUX® LS can be tailored to the exact needs of the project, thanks to an intelligent selection of technology bases and fascias that can be combined to create a product that has been designed with the application in mind. XYLUX® LS fascias come in 10 variants that cater for a wide range of corridor, open area, midbay, high-bay and IP65 rated requirements.

+44 (0)1922 458255 mackwell.com

Lighting Consultants

Go to: www.ilp.org.uk for more information and individual expertise

Carl Ackers

Mark Chandler

Alan Jaques

Built Environment Consulting Ltd

MMA Lighting Consultancy Ltd

Atkins

MSc CEng MCIBSE MILP MSLL

Castle Donington DE74 2UH

EngTech AMILP

Reading RG10 9QN

IEng MILP

Nottingham, NG9 2HF

T: +44 (0) 1332 811711 M: 07867 784906 E: carlackers@bec-consulting.co.uk

T: 0118 3215636 E: mark@mma-consultancy.co.uk

T: +44 (0)115 9574900 M: 07834 507070 E: alan.jaques@atkinsglobal.com

With many years’ experience we are able to bring a wealth of knowledge to the design process. Our vision is to deliver class leading sustainable solutions for the built environment, including specialist internal and external lighting design and specification services, record for PFI projects and their indepedent certification.

Exterior lighting consultant’s who specialise in all aspects of street lighting design, section 38’s, section 278’s, project management and maintenance assistance. We also undertake lighting appraisals and environmental lighting studies

Professional consultancy providing technical advice, design and management services for exterior and interior applications including highway, architectural, area, tunnel and commercial lighting. Advisors on energy saving strategies, asset management, visual impact assessments and planning.

Steven Biggs

John Conquest

Tony Price

Skanska Infrastructure Services

4way Consulting Ltd

Vanguardia Consulting

T: +44 (0) 1733 453432 E: steven.biggs@skanska.co.uk

www.skanska.co.uk

T: 0161 480 9847 M: 07526 419248 E: john.conquest@4wayconsulting.com

Award winning professional multi-disciplinary lighting design consultants. Extensive experience in technical design and delivery across all areas of construction, including highways, public realm and architectural projects. Providing energy efficient design and solutions.

Providing exterior lighting and ITS consultancy and design services and specialising in the urban and inter-urban environment. Our services span the complete Project Life Cycle for both the Public and Private Sector

Chartered engineer with wide experience in exterior and public realm lighting. All types and scales of project, including transport, tunnels, property development (both commercial and residential) and sports facilities. Particular expertise in planning advice, environmental impact assessment and expert witness.

Colin Fish

Ian Runciman

WSP | Parsons Brinckerhof

LED

www.bec-consulting.co.uk

IEng MILP

Peterborough PE1 5XG

Simon Bushell MBA DMS IEng MILP

SSE Enterprise Lighting

Portsmouth PO6 1UJ T: +44 (0)2392276403 M: 07584 313990 E: simon.bushell@ssecontracting.com

www.sseenterprise.co.uk Professional consultancy from the largest external lighting contractor maintaining 1.5m lights in the UK and Ireland. Exterior lighting/electrical design for Motorways, Highways, Architectural, Car Parks, Public Spaces and Sports lighting. From advice on carbon reduction strategies to delivering the whole installation package.

www.mma-consultancy.co.uk

MA BEng(Hons) CEng MIET MILP Stockport, SK4 1AS

www.4wayconsulting.com

IEng MILP

Hertford SG13 7NN

T: 07825 843524 E: colin.fish@wspgroup.com

www.wspgroup.com

Providing design and technical services for all applications of exterior and interior lighting from architectural to sports, rail, area, highways and associated infrastructure. Expert surveys and environmental impact assessments regarding the effect of lighting installations on wildlife and the community.

www.atkinsglobal.com

BSc (Hons) CEng MILP MSLL Oxted RH8 9EE

T: +44(0) 1883 718690 E:tony.price@vanguardiaconsulting.co.uk

www.vanguardiaconsulting.co.uk

BEng (Hons) CEng MILP

Cumbernauld G68 9LD

M: 07726 358955 T: 01236 805995 E: ian.runciman@lightandenergy.co.uk

www.lightandenergy.co.uk

Professional lighting consultancy offering technical advice, design and management for exterior and hazardous area lighting, services for architectural lighting using the latest colour changing technologies and advice on energy and asset management, policy and strategy preparation..

Simon Butt

Stephen Halliday

Alistair Scott

Capita

WSP | Parsons Brinckerhof

Designs for Lighting Ltd

BEng(Hons) CEng, MICE, MILP, MAPM Blackburn, BB2 1AU

EngTech AMILP

Manchester M50 3SP

BSc (Hons) CEng FILP MIMechE Winchester SO23 7TA

www.capita.co.uk/infrastructure

T: 0161 886 2532 E: stephen.halliday@wspgroup.com

Capita are a market leading design consultant, who specialise in street lighting design, LED retrofit schemes and project management. We also provide budget reducing solutions through technical expertise in products, specifications and procurement. We offer energy reduction advice, funding mechanisms and financial evaluations.

www.wspgroup.com

T: 01962 855080 M: 07790 022414 E: alistair@designsforlighting.co.uk

Public and private sector professional services providing design, technical support, contract and policy development for all applications of exterior lighting and power from architectural to sports, area and highways applications. PFI technical advisor and certifier support, HERS registered personnel.

Professional lighting design consultancy offering technical advice, design and management services for exterior/interior applications for highway, architectural, area, tunnel and commercial lighting. Advisors on lighting and energy saving strategies, asset management, visual impact assessments and planning.

Lorraine Calcott

Philip Hawtrey

Anthony Smith

it does lighting ltd

Mouchel

Stainton Lighting Design Services Ltd

T: 01254 273000 E: simon.butt@capita.co.uk

IEng MILP MSLL MIoD

Milton Keynes, MK14 6GD

T: 01908 698869 E: Information@itdoes.co.uk

www.itdoes.co.uk

Award winning lighting design practice specialising in interior, exterior, flood and architectural lighting with an emphasis on section 278/38, town centre regeneration and mitigation for ecology issues within SSSI’s/SCNI’s.Experts for the European Commission and specialists in circadian lighting

BTech IEng MILP MIET

Sutton Coldfield B72 1PH

Widely experienced professional technical consultancy services in exterior lighting and electrical installations, providing sustainable and innovative solutions, environmental assessments, ‘Invest to Save’ strategies, lighting policies, energy procurement, inventory management and technical support. PFI Technical Advisor, Designer and Independent Certifier.

Specialist in: Motorway, Highway Schemes, Illumination of Buildings, Major Structures, Public Artworks, Amenity Area Lighting, Public Spaces, Car Parks, Sports Lighting, Asset Management, Reports, Plans, Assistance, Maintenance Management, Electrical Design and Communication Network Design.

Clayton Fourie Consultancy Ltd

WSP | Parsons Brinckerhof

BEng(Hons) CEng FILP FSLL London WC2A 1AF

T: 07722 111424 E: claytonfourie@aol.com

T: 07827 306483 E: allan.howard@wspgroup.com

Internationally experienced multi-disciplinary consultants. We provide design and technical advice on all aspects of exterior lighting, hazardous area lighting, traffic signals and other highway electrical works.We also provide Planning Advice, Road Safety Audits and Expert Witness Services

Professional artificial and daylight lighting services covering design, technical support, contract and policy development including expert advice and analysis to develop and implement energy and carbon reduction strategies.

Expert witness regarding obtrusive lighting, light nuisance and environmental impact investigations.

www.clayton-fourie-consultancy.com

Stockton on Tees TS23 1PX

T: 01642 565533 E: enquiries@staintonlds.co.uk

Allan Howard

Edinburgh, EH15 3RT

Eng FILP

www.mouchel.com

T: 04489 501091 E: philip.hawtrey@mouchel.com

Euan Clayton IEng MILP

www.designsforlighting.co.uk

www.wspgroup.com

www.staintonlds.co.uk

Nick Smith IEng MILP

Nick Smith Associates Limited Chesterfield, S40 3JR

T: 01246 229444 F: 01246 270465 E: mail@nicksmithassociates.com

www.nicksmithassociates.com Specialist exterior lighting consultant. Private and adopted lighting and electrical design for highways, car parks, area and sports lighting.

Lighting Impact assessments, expert witness and CPD accredited Lighting design AutoCAD and Lighting Reality training courses

Neither Lighting Journal nor the ILP is responsible for any services supplied or agreements entered into as a result of this listing.

Alan Tulla IEng FILP FSLL

Alan Tulla Lighting

Winchester, SO22 4DS

T: 01962 855720 M:0771 364 8786 E: alan@alantullalighting.com

www.alantullalighting.com

The Professional Lighting Summit is counting down to take off on 15th and 16th June

Site surveys of sports pitches, road lighting and offices. Architectural lighting for both interior and exterior. Visual Impact Assessments for planning applications. Specialises in problem solving and out-of-the-ordinary projects.

Michael Walker CMS IEng MILP

WSP | Parsons Brinckerhoff Ferrybridge, WF11 8NA, UK

T: 0197 7632 502 E: Michael.Walker@pbworld.com

www.pbworld.com

Public and private sector professional services providing design, technical support, contract and policy development for all applications of exterior lighting and power from architectural to sports, area and highways applications. PFI technical advisor and certifier support, HERS registered personnel.

This directory gives details of suitably qualified, individual members of the Institution of Lighting Professionals (ILP) who offer consultancy services.

Meet The Journal’s editor Nic Paton at this years Professional Lighting Summit in Brighton, and let him know what you want to read about

Don’t miss out – head to

www.theilp.org.uk/summit for the very latest details

LIGHTING DIRECTORY LIGHTING DIRECTORY LIGHTING DIRECTORY LIGHTING

DIRECTORY BANNER SYSTEMS European distributors of StormSpill®, only system specified by: • London 2012 Olympic Games • Glasgow 2014 Commonwealths

Patented Raised Lamppost Banner System that significantly reduces loading on columns and prevents banners twisting and tearing.

Column testing and guarantee service available.

ELECTRICAL DISTRIBUTION

Kiwa CMT Testing MACLEAN ELECTRICAL LIGHTING DIVISION Business info: Specialist Stockist and Distributors of Road Lighting, Hazardous Area, Industrial/ Commercial/ Decorative lighting. We also provide custom-built distribution panels, interior and exterior lighting design using CAD. 7 Drum Mains Park, Orchardton, Cumbernauld, G68 9LD Tel: 01236 458000 Fax: 01236 860555 email: steve.odonnell@maclean.co.uk

Unit 5 Prime Park Way Prime Enterprise Park Derby DE1 3QB

CUT OUTS & ISOLATORS

Tel 01332 383333 Fax 01332 602607 cmtenquiries@kiwa.co.uk www.kiwa.co.uk

METER ADMINISTRATION

Meter Administrator Power Data Associates Ltd are the leading meter administrator in Great Britain. We achieve accurate energy calculations assuring you of a cost effective quality service. Offering independent consultancy advice to ensure correct inventory coding, unmetered energy forecasting and impact of market developments.

01525 601201

info@PowerDataAssociates.com www.PowerDataAssociates.com Wrest Park, Silsoe, Beds MK45 4HR

Meadowfield, Ponteland, Northumberland, NE20 9SD, England Tel: +44 (0)1661 860001 Fax: +44 (0)1661 860002 Email: info@tofco.co.uk www.tofco.co.uk Manufacturers and Suppliers of Street lighting and Traffic Equipment • Fuse Units • Switch Fuse Units • Feeder Pillars and Distribution Panels • The Load Conditioner Unit (Patent Pending) • Accessories Contact: Kevin Doherty Commercial Director kevindoherty@tofco.co.uk If you would like to switch to Tofco Technology contact us NOW!

FESTIVE & DECORATIVE LIGHTING Specialists in supply and installation of high quality decorative and festive lighting for City centres, shopping centres, towns and villages.A full range of equipment is available for purchase or hire including column motifs, cross road displays, IP68 festoon lighting, and various tree lighting systems.Our services range from supply, hire, design, installation, and total management of schemes.

More information is available from: Head Office City Illuminations Ltd Griffin House, Ledson Road, Roundthorn Ind Est Manchester M23 9GP

Non-destructive testing at the root, base, swaged joint and full visual inspection of steel lighting columns.

Techniques employed include the unique Relative Loss of Section meter and Swaged Joint Analyser in addition to the traditional Magnetic Particle inspection and Ultra Sonics where appropriate.

Web site: www.maclean.co.uk

The most approved system by Highways Engineers

0208 343 2525 baymedia.co.uk

COLUMN INSPECTION & TESTING

Tel: 0161 969 5767 Fax: 0161 945 8697 Email: dave@cityilluminations.co.uk

LIGHTING Designers and manufacturers of street and amenity lighting.

319 Long Acre Nechells Birmingham UK B7 5JT t: +44(0)121 678 6700 f: +44(0)121 678 6701 e: sales@candela.co.uk

candela L I G H T

fresh thinking trusted technology

- Direct LED retrofit lamps - LED gear tray retrofits

TRAINING SERVICES

- Induction Lighting

CPD Accredited Training • AutoCAD (basic or advanced) • Lighting Reality • AutoluxLighting Standards • Lighting Design Techniques • Light Pollution • Tailored Courses please ring Venues by arrangement Contact Nick Smith

Nick Smith Associates Ltd 36 Foxbrook Drive, Chesterfield, S40 3JR t: 01246 229 444 f: 01246 270 465 e : mail@nicksmithassociates.com w: www.nicksmithassociates.com

0203 051 1687 www.indolighting.com

LIGHT MEASURING EQUIPMENT HAGNER PHOTOMETRIC INSTRUMENTS LTD Suppliers of a wide range of quality light measuring and photometric equipment.

HAGNER PHOTOMETRIC INSTRUMENTS LTD PO Box 210, Havant, PO9 9BT Tel: 07900 571022 E-mail: enquiries@ hagnerlightmeters.com

www.hagnerlightmeters.com

LIGHTING DIRECTORY LIGHTING DIRECTORY LIGHTING DIRECTORY LIGHTING

DIRECTORY

15 June

ILP Annual General Meeting Venue: Jurys Inn Waterfront Hotel, Brighton (immediately before the Professional Lighting Summit) www.theilp.org.uk/events/

15-16 June

2016 Professional Lighting Summit: Venue: Jurys Inn Waterfront Hotel, Brighton www.theilp.org.uk/events/

21 June

North Eastern Region golf day Venue: Wynyard Golf Club, Billingham www.theilp.org.uk/events

12 July

YLP Technical Session Venue: Zodion House, Sowerby Bridge www.theilp.org.uk/events

14 July

Western Region Technical Session Venue: Parc Golf Club, Newport www.theilp.org.uk/events

19 July

How to be brilliant – Peter Veale, director of Firefly Lighting Design Venue: Marshalls Design Space, Clerkenwell, London www.theilp.org.uk/events

28 July

Midland Region golf day Venue: Ruddington Grange Golf Club, Nottingham www.theilp.org.uk/events

15-16 June – ILP Professional Lighting Summit, Jurys Inn Waterfront Hotel, Brighton

JULY / AUGUST ISSUE

EFFICIENCY SAVINGS

How Westminster City Council has developed an energy efficiency rating approach that allows it more effectively to assess existing and new public realm lighting installations

DARK MATERIALS

Inside the Campaign to Protect Rural England’s new interactive maps of light pollution and dark skies across England

POWER GAP For full listings of all regional and national ILP events go to: www.theilp.org.uk/events

The interaction of surge suppression devices within street lights, and the specification challenges this can sometimes create

LED for everyone Aura Light EASY S election

How often do you have to change your drivers?

The fact that 52% of LED luminaire failures are caused by degraded or malfunctioning drivers, isn’t the only reason to install the NEW INDO AIR2...

1

AIR2 is DALI enabled, offering full CMS compatibility and pre-programmable dimming to 10% with a Power Factor >0.95

2

Innovative thermal design and advanced protection system monitors and protects temperature of all circuitry, including LEDs

3

Future-proof surge suppression built in as standard at 20kV (max) / 10kV (nom)

4

Optional integrated and programmable photocell; can prevent day burning if CMS node loses signal

5

COB technology for market-leading lumen maintenance (L90B50 >100,000 hrs), efficacy (135 lamp lm/W) and light quality. Available in lumen packages up to 20klm

INDO AIR2 Weakness driven out

Lifetime engineered in

Book a free lighting design www.indolighting.com/AIR2