Cable data

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Technical data – Heating cables

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Technical data – Heating cables 2

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SERIES RESISTIVE HEATING CABLES The first heating cable that was produced was of a series resistive type. Today there are several types of series resistive heat‐ ing cables available. These are manufactured in qualities from PVC to mineral insulated high‐temperature cable with rustless sheath. The biggest advantage with these is the possibility to obtain long element lengths, from only one point of connection.

In contrary to parallel resistive and self‐limiting heating cables which maximum length are limited by the voltage drop in the conductors, this is used as a heat emitting part in a series resistive cable. The heating conductor is manufactured of an alloy that gives required resistance per meter. By combining a required length with the available cable resistance's and supply voltages can advantages be obtained such as varying outputs, lengths from a couple of meter to lengths on 800‐1000m from one point of supply.

It is a disadvantage that the cable normally must be finished on the factory, which means you have to know the pipe lengths in advance to be able to pre order required lengths. (At long high‐temperature lengths where the heating conductor contains copper (CC‐cables) shall consideration be taken to the temperature coefficient of the heating conductor which influence the output of the length negatively).

For installations within the EX‐surface a number of supplementary safety devices is required, and exemption from the touched authorities.

Index Series resistive cables

Cable

Page

TCPR with return-wire......................................... 3,4 TCPRH, with return-wire ..................................... 5,6 TCT, without return-wire ..................................... 7,8 TCTR, with return-wire ...................................... 9,10 TSF, without return-wire ...................................... 11 TSFR, with return-wire ......................................... 12 HCHH, mineral insulated ..................................... 13 VELOX SIP/PVC .................................................. 14 VELOX SIP/PFA .................................................. 15

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Technical data – Heating cables 3

Velox TCPR ‐ Type of cable: Series resistive, with return‐wire

Range of application:

Frost protection: ... Temperature maintenance of piping and tanks. Interior and exterior in‐ stallation in pipings.

Floor heating: ........ Concrete and joist frame.

Surface heating: .... To keep footways and drives non‐ slip.

Roof applications: .... Frost protection of down gutters and drain pipes and melting of roof surfaces.

Technical data:

Construction

Conductor with Teflon insu‐ lation

Return‐Wire

Earth wire

Electric field strength not measurable cable ..... < 3 V/m Magnetic field strength not measurable cable ..... < 0.06 micro Tessla Basic type ....................................... 90 CM acc. to IEC800 Tested and approved by ...................... SEMKO (Sweden)

Metallic scre‐ en

................................................................... SETI (Finland) ............................................................. NEMKO (Norway) Meets requirements from ...................... VDE (Germany) ..................................................................... BS (England) .......................................................... DEMKO (Denmark)

Sheath inPVC

Rated voltage ......................................................... 440 V Sheath temperature. .............................. (Tm) max +90oC Process temperature. ................................................. (Tp) ‐ Cable off............................................. (Tpoff) max +90oC Installation temperature.................................. min ‐10oC Bending radius ............................................... min 25 mm Diameter ..................................................... 5.5 ± 0.5 mm Weight ........................................................ 92 kg/1000m Table 1: Resistance values

Type of cable (Ω/m)

Temperature Coefficience

Part.no

12.00 8.00 4.00 2.90 1.90 1.30 1.00 0.82 0.65 0.45 0.36 0.25 0.18

0.04 0.15 0.40 0.40 0.40 0.14 0.14 0.14 0.14 0.25 0.25 0.40 0.70

18812R 18800R 18400R 18290R 18190R 18130R 18100R 18082R 18065R 18045R 18036R 18025R 18018R

Technical data – Heating cables 4

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Velox TCPR ‐ Type of cable: Series resistive, with return‐wire

Sheath temperature

Sheath temperature: Diagram 1

Cable installed free in air or against heat conducting material (Ua = 0.45)

The sheath temperature (Tm) of the cable will vary de‐ pending on the process (ambient) temperature (Tp), load (Q) and way of installation.

Read the diagram from right to left (see example (yellow line)

The sheath temperature is calculated as follows:

Tm = Q __ +Tp

Ua Tm = Sheath temperature in oC Tp = Process temperature in oC Q

= Load in W/m

Ua = Heat transfer coeff.

Example: Velox TCPR mounted without dissipation of heat at an ambient temperature of 25oC, loaded with 20 W/m will have a sheath temperature of 65oC.

Installation in sand and concrete Sand:

max load 20 W/m cable.

Concrete:

max load 25 W/m cable.

Dissipation of heat The heat transfer coefficient (Ua) can be improved con‐ siderably (3 to 10 times) by arranging some dissipation of heat, for instance by proating the cable with alumin‐ ium tape.

For this kind of installation please consult Vär‐ meKabelTeknik for assistance with the design and in‐ stallation.

VärmeKabelTeknik

Technical data – Heating cables 5

Velox TCPRH ‐ Type of cable: Series resistive, with return‐wire + extra outer sheath

Range of application:

Surface heating: ....... Non‐slippery walk‐ and drive ways.

Construction

Technical data:

Conductor with Teflon insulation

Electric field strength not measurable cable ..... < 3 V/m Magnetic field strength not measurable cable < 0.06 micro Tessla Basic type ....................................... 90 CM acc. to IEC800 Tested and approved by ...................... SEMKO (Sweden) ................................................................. SETI (Finland)

Return‐wire

Earth wire

............................................................. NEMKO (Norway) Meets requirements from ...................... VDE (Germany) ..................................................................... BS (England) .......................................................... DEMKO (Denmark) Rated voltage ......................................................... 440 V

Metallic screen

Sheath temperature. .............................. (Tm) max +90 C o

Dimensioning temp. ....................................... max +90oC Installation temperature.................................. min ‐10oC Bending radius ............................................... min 45 mm

Sheath in PVC

Diameter ..................................................... 6.5 ± 0.5 mm Weight ...................................................... 100 kg/1000m Table 1: Resistance values Type of cable (Ω/m)

Temp. koeff.

Part.no

12.00

0.04

18812RH*

8.00

0.15

18800RH*

5.35

0.15

18535RH*

4.00

0.40

18400RH*

2.90

0.40

18290RH*

1.90

0.40

18190RH*

1.30

0.14

18130RH*

1.00

0.14

18100RH*

0.82

0.14

18082RH*

0.65

0.14

18065RH*

0.45

0.25

18045RH*

0.36

0.25

18036RH

0.25

0.40

18025RH

0.18

0.70

18018RH

* No stock‐item

Sheath in PVC + Halar (140°C)

Technical data – Heating cables 6

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Velox TCPRH ‐ Type of cable: Series resistive, with return‐wire + extra outer sheath

Sheath temperature

The sheath temperature (Tm) of the cable will vary de‐ pending on the process (ambient) temperature (Tp), load (Q) and way of installation.

The sheath temperature is calculated as follows: Tm = Q __ +Tp

Ua Tm = Sheath temperature in oC Tp = Process temperature in oC Q

= Load in W/m

Ua = Heat transfer coeff.

Example: Velox TCP/R mounted without dissipation of heat with an ambient temperature of 25oC, loaded with 20 W/m will have a sheath temperature of 65oC.

Installation asphalt Asphalt:

max load 30 W/m cable.

Sheath temperature: Diagram 1 Cable installed free in air or against heat conducting material (Ua = 0.45) Read the diagram from right to left (see example (yellow line)

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Technical data – Heating cables 7

Velox TCT ‐ Type of cable: Series resistive, without return‐wire

Range of application:

Temperature maintenance and heating of piping, tanks, vents etc in applications with high temperatures, large power requirements and aggressive environmental.

Konstruktion

Resistance wire Cu, CuNi

TCT can be installed at plants which are steam purified.

Conductor insulation Teflon FEP

TCT has a sheath of corrosions toughened material (tef‐ lon) and manages aggressive environmentals.

Technical data: Basic type ..................................... NC acc. to SEN 242421 Tested and approved by ...................... SEMKO (Sweden) ................................................................. SETI (Finland) ................................................................ VDE (Germany) Rated voltage ......................................................... 440 V Resistance values ............................ acc. to Table 1 and 2

Armourring – Braided Cu – 16 x 3 x 0.21mm

Process temperature. .................. (Tp) depending on load ‐ Cable off........................................... (Tpoff) max +220oC Installation temperature.................................. min ‐30oC Bending radius ............................................... min 15 mm Diameter .............................................................. 4.1 mm Weight ........................................................ 35 kg/1000m

Sheath in Teflon FEP

Table 1: Resistance values Type of cable (Ω/m)

Part.no

12,00

18812T

8.00

18800T

4.00

18400T

2,90

18290T

1,90

18190T

1.30

18130T

1.00

18100T

0.81

18082T

0.65

18065T

0.45

18045T

0.36

18036T

0.25

18025T

0.18

18018T

0.01

Cold-lead-in cable 1,5

18001T

Technical data – Heating cables 8

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Velox TCT ‐ Type of cable: Series resistive, without return‐wire

Sheath temperature

The sheath temperature (Tm) of the cable will vary de‐ pending on the process (ambient) temperature (Tp), load (Q) and way of installation.

The sheath temperature is calculated as follows:

Q Tm = ____ +Tp

Ua

Dissipation of heat The heat transfer coefficient (Ua) can be improved con‐ siderably (3 to 10 times) by arranging some dissipation of heat, for instance by proating the cable with alumi‐ nium tape. This will enable you to use the heating cable also at high process temperatures up to 200°C. For this kind of installation please consult VärmeKabel‐ Teknik for assis‐tance with the design and installation.

Tm = Sheath temperature in C o

Tp = Process temperature in oC Q

= Load in W/m

Ua = Heat transfer coeff.

Example: Velox TCT mounted without dissipation of heat at an ambient temperature of 100oC, output 30 W/m will have a sheath temperature of 146oC.

Sheath temperature: Diagram 1 Cable installed free in air or against heat conducting material (Ua = 0.65)

SHEATH TEMPERATURE TCT 400

350

Sheath temperature °C

300

250

TCT 10W TCT 20W TCT 30W TCT 10W Med alu.tape TCT 20W Med alu.tape TCT 30W Med alu.tape

max temperature 220°C 200

150

100

50

0 0

10

20

30

40

50

60

70

80

90 100 110 120 130 140 150 160 170 180 190 200 210

Process temperature °C

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Technical data – Heating cables 9

Velox TCTR ‐ Type of cable: Series resistive, with return‐wire

Range of application:

Temperature maintenance and heating up piping, tanks etc in plants with high temperatures and high power requirements.

Construction

Resistance‐wire Cu

TCT can be installed at plants which are steam purified.

Conductor insulation Teflon FEP

TCT has a sheath of corrosion toughened material (tef‐ lon) and manages aggressive environmentals.

Technical data: Basic type ..................................... NC acc. to SEN 242421 Tested and approved by ...................... SEMKO (Sweden) ................................................................. SETI (Finland) ................................................................ VDE (Germany) Rated voltage ......................................................... 440 V Resistance values ............................ acc. to Table 1 and 2 Process temperature. ................................................. (Tp) ‐ Cable on ........................ (Tpon) see diagram on page 2 ‐ Cable off........................................... (Tpoff) max +220oC Installation temperature.................................. min ‐30oC Bending radius ............................................... min 25 mm

Armouring – Braided Cu – 16x3x0.21mm

Armouring layer Teflon FEP

Armouring – Braided Cu – 16x3x0.21mm

Diameter ................................................................. 5 mm Weight ........................................................ 68 kg/1000m

Sheath in Teflon FEP

Table 1: Resistance values Type of cable (W/m) 12.00 8.00 5.35 4.00 2.90 1.30 1.00 0.82 0.65 0.45 0.36 0.25 0.18 0.10* 0.05* 0.03* 0.01*

Part.no

18812TR 18800TR 18535TR 18400TR 18290TR 18130TR 18100TR 18082TR 18065TR 18045TR 18036TR 18025TR 18018TR 18010TR 18005TR 18003TR 18001TR

* On special order (Del.time 3‐4 weeks)

Technical data – Heating cables 10

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Velox TCTR ‐ Type of cable: Series resistive, with return‐wire

Sheath temperature

The sheath temperature (Tm) of the cable will vary de‐ pending on the process (ambient) temperature (Tp), load (Q) and way of installation.

The sheath temperature is calculated as follows:

Q Tm = ____ +Tp

Ua

Dissipation of heat The heat transfer coefficient (Ua) can be improved con‐ siderably (3 to 10 times) by arranging some dissipation of heat, for instance by proating the cable with alumi‐ nium tape. This will enable you to use the heating cable also where high process temperatures are involved.

For this kind of installation please consult VärmeKabel‐ Teknik for assis‐tance with the design and installation.

Tm = Sheath temperature in oC Tp = Process temperature in oC Q

= Load in W/m

Ua = Heat transfer coeff.

Ua

Ua Ua

Installed without dDissipation of heat

= 0,32 With fitted Alu‐foil = 0.65 With fitted Alu‐tape = 0.8

Example: Velox TCTR mounted without dissipation of heat at an ambient temperature of 100oC, output 30 W/m will have a sheath temperature of 192oC.

Sheath temperature: Diagram 1 TCTR cable installed with fitted aluminium tape as dissipation of heat (Ua = 08) SHEATH TEMPERATURE TCTR 350

300

250 Sheath temperature °C

Max temperature 220°C TCTR 10W TCTR 20W TCTR 30W TCTR 10W Med alu.tape TCTR 20W Med alu.tape TCTR 30W Med alu.tape

200

150

100

50

0 0

10

20

30

40

50

60

70

80

90 100 110 120 130 140 150 160 170 180 190 200 210

Process temperature °C

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Technical data – Heating cables 11

Velox TSF ‐ Type of cable: Special cable for hardening of concrete Series resistive, without return‐wire

Range of application:

Construction

Hardening of concrete/ Drying up concrete.

Technical data:

Resistance‐wire 0.18 Ω – Cu, CuNi Conductor insulation PVC

Basic type ..................................... BN acc. to SEN 242421 Tested and approved by ...................... SEMKO (Sweden) Rated voltage ........................................................... 440V Heating cable for hardening of concrete is delivered in lengths of 90m for embedment in connection with con‐ creting.

Part.no

Denomination

89 871 13

TSF 95‐018 ‐ 3000W/230V

89 871 15

TSF‐Distributor, without thermostat

89 871 16

TSF‐Distributor, with thermostat

Aluminum/Foil/ Mylar

Sheath in PVC

Armouring – Braided Cu – 16x3x0.21mm

Technical data – Heating cables 12

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Velox TSFR ‐ Type of cable: Special cable for hardening of concrete

Series resistive, with return‐wire

Range of application:

Construction

Hardening/drying‐up constructions of concrete and frost protection of ground plates.

Technical data: Basic type .................................... BN acc. to SEN 242421 Tested and approved by ...................... SEMKO (Sweden)

Conductor/Return‐wire with insulation in 105°C PVC

Rated voltage .......................................................... 440V Are supplied as loops of 45/90m for hardening of con‐ crete/drying‐up in connection with concreting.

Part.no

Denomination

89 871 11R

TSF‐R 45‐0.82 ‐1430W/230V

89 871 13R

TSF‐R 95‐0.18 ‐ 3000W/230V

89 871 15

TSF‐Distributor without thermos‐ tat

89 871 16

TSF‐Distributor with themostat

Frost protection of plate on the surface during the build‐ ing‐time Part.no

Denomination

89 872 21

TSFR 120‐0.18Ω 2450W/230V

89 872 23

TSFR 220‐0.18Ω 4040W/400V

Sheath in PVC

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Technical data – Heating cables 13

TRM HCHH ‐ Type of cable: Series resistive, Mineral insulated without return‐wire

Range of application:

Construction

Copper and copper alloy

Frost protection and heating up ground surfaces. Roof gutters and concrete surfaces outdoors.

HCHH have an outer sheath of corrosions toughened HDP‐rubber.

Magnesium oxide

Are supplied as ready elements with cold‐lead‐in cable.

Technical data: Basic type ..................................... LG acc. to SEN 242421 Tested and approved by ...................... SEMKO (Sweden) ................................................................ VDE (Germany) Rated voltage ......................................................... 440 V Operating temperature ................................. max +90 °C

Copper and Copper‐Nickel

Max. Load ...................................... 40W/m (in concrete)

(HDFF)

Resistance values ...................................... acc. to Table 1

.......................................................... 30W/m(Sand, air..)

Installation temperature.................................. min ‐30oC Bending radius ................................................ min 30mm Diameter ................................................... 5‐6 x diameter Table 1: Resistance values Type of cable (Ω/m)

Weight (kg/km) Ø (mm)

Part.no

2.0

41/4.6

HCHH1M2000

1.25

42/4.6

HCHH1M1250

0.80

60/4.9

HCHH1M800

0.63

77/5.4

HCHH1M630

0.45

78/5.5

HCHH1M450

0.315

83/6.0

HCHH1M315

0.22

97/5.9

HCHH1M220

0.14

114/6.3

HCHH1M140

0.10

146/6.8

HCHH1M100

Sheath in HDP

Technical data – Heating cables 14

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VELOX SIP/PVC ‐ Type of cable: Series resistive, Double insulated, Class II

Range of application:

Construction Resistance‐wire

Switchpoint heating.

Velox SIP is a double insulated series resistive cable for connections up to 1000 VDC.

Technical data:

High temperature Sili‐ cone

Basic type/Manufactured acc. to ................ VDE/IEC 800 Colour:.............................................. White outer sheath Test voltage ........................................................... 3000V Supply voltage ...................................... 750v/max 1000V Output .............................................................. Ohms law Max ambient temperature ...................................... 20°C Max Exposure temperature ................................... 130°C Lowest installation temp............................................. ‐10 Lowest bending radius ............................................. 6 x Ø Diameter ..................................................... 4.5 / 5.0 mm ........................................................... depending on load Weight ...................................... approx. 80‐90 kg/1000m Part.no ............................................ SIP……….(+ Ω‐value) Denomination: .................... Velox SIP + resistance‐value

High temperature PVC/Polyurethane

SIP is manufactured with a sheath of PVC/Polyurethane Table 1: Type of cable VELOX SIP/PVC

Output (W/m)

Length max* (m)

50 W/m

50 W

* at 10% power loss.

Available resistance values

0.03 Ω 0.18 Ω 0.25 Ω 0.36 Ω 0.45 Ω 0.65 Ω 0.82 Ω 1.00 Ω

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Technical data – Heating cables 15

Velox SIP/PFA – Cable type: Series resistive, double insulated, Class II

Range of application:

Construction Resistance‐wire

Switchpoint heating and power rail heating.

Velox SIP is a double insulated series resistive heat‐ ing cable for connections up to 1000 VDC.

Technical data:

High temperature Sili‐ cone

Manufacturing std/Basic type .................... VDE/IEC 800 Colour: .............................................. White outer sheath Test voltage .......................................................... 3000V Supply voltage ...................................... 750v/max 1000V Output ............................................................. Ohms law Max ambient temperature. ...................................... 20°C Max exposure temperature ....................................130°C Lowest installation temp. ........................................... ‐10 Lowest bending radius ............................................. 6 x Ø Diameter ..................................................... 4.5 / 5.0 mm ........................................................... depending on load Weight ..................................... approx. 80‐90 kg/1000m Part.no ........................................ SIP/PFA…….(+ Ω‐value) Denomination: .................... Velox SIP + resistance‐value

High temperature PFA

SIP/PFA are manufactured with a sheath of PFA. Table 1: Type of cable VELOX SIP/PVC

Output (W/m)

Length max* (m)

80 W/m

Ohms law

* at 10% power loss.

Technical data – Heating cables 16

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SELF‐LIMITING HEATING CABLES Self‐limiting cables can be bought in running metre for make‐up on the site. The cable has a varying output depending on the ambient temperature, which guard against overheating even if the cable crosses itself. This also allows installation in Ex‐ surfaces (all Värmekabeltekniks self‐limiting cable types are Ex‐rated).

The self‐limiting cable have a unique capacity in proportion to the sheath temperature of the cable, reduce the emitted out‐ put. These cables are often mentioned as self‐regulated cables but this is a wrong denomination, as a required temperature not can be guaranteed without temperature control.

On the other hand, the cables make it possible to give an even temperature on a pipe even if the ambient temperature varies along piping.

Värmekabeltekniks self‐limiting cables are approved within Ex‐surfaces when the cables have a stated T‐rate, i.e. a maximum temperature that the cable reach. The T‐rates varies for different output/m.

The self‐limiting cables are built up round a semi‐conductive bed embedded in the outer edges. The bed between the con‐ ductors has a capacity to lead current, the conducting capacity is in proportion to the temperature. At rising temperature the conducting capacity decreases, overheating is prevented. At sinking temperature, the current increases and the increasing heat requirement is satisfied.

-

RSL Frost protection cables, have a primary insulation and an outer sheath of thermo‐plastic rubber (CR) or teflon (CT).

‐ RSM cables for keeping warm and heating up to 120°C, has an insulation and outer sheath of Teflon. ‐ RSH cables for keeping warm and heating up to 190°C, has an insulation and outer sheath of teflon.

The emitted outputs of the self‐limiting cables are depending on the ambient temperature and the method of installation, a good dissipation of heat increase the emitted output. (Aluminium tape that covers all the length of the cable and is attached against the pipe, cool down the side of the cable, which borders against the insulation and thereby, emitted output with 30‐ 50%).

All self‐limiting cables have a starting current which is higher than the operating current. This must be taken into consid‐ eration when designing circuit‐/connection lengths, (see data sheet).

Index

Self‐limiting cables

Cable

Page

BTL‐10 .................................................................. 17 BTL Floorheat ....................................................... 18 BTL‐N ............................................................... 19‐20 SAFE‐T .................................................................. 21 RSL ................................................................ 22‐23 RSM ................................................................ 24‐25 RSH ................................................................ 26‐27 AQUA‐55 ......................................................... 28‐29 AQUA‐60 ......................................................... 30‐31 VELOX ORIGO30‐110/120 .................................... 32 VELOX ORIGO30‐230/240 .................................... 33 VELOX ORIGO30‐DC ............................................. 34

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Technical data – Heating cables 17

Velox BTL‐10 ‐ Type of cable: Self‐limiting

Range of application:

Konstruktion

Frost protection of pipes, tanks.

Conductors Cu 1.3mm²

Technical data: Basic type .............................. 65 CM acc. to SS 424 24 11 Tested and approved by ..................... SEMKO (Sweden) ................................................................... SETI (Finland) ........................................................................... UL (USA) ........................................................... Det norske Veritas ................................................................. Bureau Veritas

Armouring layer of ther‐ moplastic rub‐ ber (CR)

(16 AWG) Semi‐conductive material with self‐limiting characte‐ ristics (the resistance in‐ creases with rising temper‐ ature)

Rated voltage ................................................ 220 ‐ 240 V Output W/m ................................................00C‐ 12 W/m

Armouring Cu

.............................................................. + 10 0C ‐ 10 W/m ............................................................... + 650C ‐ 2 W/m Max. cable length for max 20% Power loss ......................................... 97 meter Installation temperature.................................. min ‐200C Bending radius ............................................... min 25 mm Size ............................................................. 7.5 x 5.0 mm Weight ........................................................ 65 kg/1000m Part.no. ............................................................ 89 861 30

Max. cable length based on fuse and start-up temperature. Supply voltage 220/240 V.

Sheat in thermoplas‐ tic rubber (CR) or Teflon (CT)

Table 1: Fusing 10A 16A

Cable length/Start temperature ‐30°C 0°C +10°C 70m 110m 135m 105m 175m 195m

Maximum length per loop depending on voltage drop in the conductors Maximum length per installed length: 100 meter at external application 60 meter at internal application in water pipes

Technical data – Heating cables 18

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Velox BTL Floorheat ‐ Type of cable: Self‐limiting

Range of application:

Construction

Floor heating.

Conductors

Technical data Semi‐conductive material with self‐limiting characte‐ ristics (the resistance in‐ creases with rising temper‐ ature)

Basic type .............................. 65 CM acc. to SS 424 24 11 Tested and approved by ...................... SEMKO (Sweden) .................................................................. SETI (Finland) ........................................................................... UL (USA) ........................................................... Det Norske Veritas ................................................................. Bureau Veritas

Armouring layer

Rated voltage ................................................ 220 ‐ 240 V Output W/m ........................................................ + 200C ≈ ..................................................................... 18‐20 W/m

Armouring 1.5mm²

Max. cable length for max 20% Power loss ......................................... 62 meter Installation temperature.. ................................ min ‐150C Bending radius .............................................. min 25 mm Size ............................................................. 7.5 x 5.0 mm Weight ........................................................ 65 kg/1000m Part.no. ............................................................ 89 861 50

Max. cable length based on fuse and start-up temperature. Supply voltage 220/240 V.

Sheath in TPE

Table 1 Fusing

Cable length/Start temperature ‐20°C

0°C

+10°C

+20°C

10A

37m

44m

72m

79m

16A

60m

77m

127m

140m

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Technical data – Heating cables 19

Velox BTL10 N ‐ Type of cable: Self‐limiting

Range of application:

Construction

Frost protection of pipes, tanks below +65oC.

Conductors

Technical data: Basic type ............................................................... 65 CM ......................................................... acc. to SS 424 24 11 Tested and approved by ...................... SEMKO (Sweden) .................................................................. SETI (Finland) Rated voltage ................................................. 220 ‐ 240 V Process temp. ............................................................. (Tp)

Armouring layer of thermoplastic rubber (CR)

Semi‐conductive material with self‐limiting characte‐ ristics (the resistance in‐ creases with rising temper‐ ature)

‐ Cable on .............................................(Tpon) max +65oC ‐ Cable off............................................. (Tpoff) max +85oC Installation temperature.................................. min ‐20oC

Armouring 1.5mm²

Bending radius ............................................... min 15 mm Size ........................................................... 11.1 x 4.8 mm Weight ...................................................... 118 kg/1000m

BTL N is manufactured with a sheath of teflon (CT).

Table 1 Type of cable

Output +10°C (W/m)

Length max* (m)

BTL-N

10

211

Sheath in Teflon (CT)

* at 10% power loss

Technical data – Heating cables 20

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Velox BTL10 N ‐ Type of cable: Self‐limiting Max. cable lenghts based on fuse and start/up temperature. Supply voltage 220/240 V. Fuses loaded with 0.8 x nominal current.

Table 2: 10 Ampere

Table 3: 16 Ampere

Type of cable

Max cable length/Start temperature -20°C

0°C

+10°C

+20°C

BTL-N

62m

73m

80m

89m

Type of cable

Max. Cable length/Start temperature -20°C

0°C

+10°C

+20°C

BTL-N

98m

116m

128m

142m

Table 4: 20 Ampere Type of cable

Max. cable length/Start temperature -20°C

0°C

+10°C

+20°C

BTL-N

123m

145m

160m

178m

VELOX BTL

40

35

Avgiven effekt W

30

25

BTL-10 20

FLOOR HEAT SAFE-T

15

10

5

0 -20

-10

0

10

20

Rör temperatur °C

30

40

50

60

70

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Technical data – Heating cables 21

Velox Safe‐T ‐ Kabeltyp: Självbegränsande

Range of application:

Construction

Roof applications.

Conductors

Technical data: Basic type .............................. 65 CM acc. to SS 424 24 11 Tested and approved by ...................... SEMKO (Sweden) ................................................................... SETI (Finland) ........................................................................... UL (USA) ........................................................... Det norske Veritas ................................................................. Bureau Veritas

Armouring layer of thermoplastic rubber (CR)

Semi‐conductive material with self‐limiting characte‐ ristics (the resistance in‐ creases with rising temper‐ ature)

Rated voltage ................................................ 220 ‐ 240 V Output W/m .................................. ‐100C i luft ≈ 22 W/m .......................................................... 0°C i luft ≈ 19 W/m

Armouring 1.5mm²

..................................................... + 65°C i luft ≤ 2 W/m ........................................................ 0°C i is/vatten ≈ 36 W/m Max. cable length for max 20% Power loss ......................................... 58 meter Installation temperature.................................. min ‐200C Bending radius ............................................... min 25 mm Size ........................................................... 11.1 x 5.0 mm Weight ...................................................... 118 kg/1000m Part.no. ............................................................ 89 861 45

Sheath in Teflon (CT)

Max. cable length based on fuse and start-up temperature. Supply voltage 220/240 V. Fusing

Cable length/Start temperature -20°C

0°C

+10°C

10A

30m

40m

50m

16A

48m

64m

78m

20A

60m

80m

97m

Technical data – Heating cables 22

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Velox TTS super‐ Type of cable: Self‐limiting

•

Self‐regulating

•

7 power output ranges

•

Cut to length

Construction 1.25mm² Buswires

Range of application: Velox Super is a construction and industrial grade self‐ regulating heating tape that may be used for frost pro‐ tection, or temperature maintenance of pipework and vessels.

Semi‐conductive material with self‐ limiting characteris‐ tics (the resistance increases with ris‐ ing temperature)

Function: Self‐regulating heating cables consist of two parallel buswires, embedded semi‐conductive self‐regulating matrix. This means that the heating cable automatically responds to changes in ambient conditions.

With increase in temperature, the synthetic material expands by molecular force, and the connections be‐ tween the carbon particles diminish, reducing the load.

Conversely, as the temperature decreases, so the load increases as the connections between the carbon parti‐ cles increases accordingly.

Thus, the heating power varies according to the tem‐ perature surface of the surface the heating cable is applied to.

Insulation

Earth braiding tinned copper

Self‐regulating heating cables will not overheat or burn‐ out – even when overlapped.

Technical data: Maximum exposure temperature (unpowered) .. 200°C* * maximal 1000 hours exposure time Maximum operating temperature (powered) ....... 120°C Nominal voltage ............................................. 220 ‐ 240 V ............................................... (120 V available on order)

Sheath in fluoropo‐ lymer

Minimum bending radius. .....................................25 mm Minimum installation temperature ........................ ‐30oC Maximum resistance of braid .................. 18.2 Ohms/km T‐rating. ........................................................................ T3

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Technical data – Heating cables 23

Velox TTS super ‐ Type of cable: Self‐limiting Part.no

10TTS‐2‐B 10TTS‐2‐BOT 15TTS‐2‐B 15TTS‐2‐BOT 20TTS‐2‐B 20TTS‐2‐BOT 25TTS‐2‐B 25TTS‐2‐BOT 30TTS‐2‐B 30TTS‐2‐BOT 45TTS‐2‐B 45TTS‐2‐BOT 60TTS‐2‐B 60TTS‐2‐BOT

Power output on insulated metal pipes at 10°C (W/m) 10 10 15 15 20 20 25 25 30 30 45 45 60 60

Maximum ambient ener‐ gised

Permissabgle temperature de‐energised

(°C) 120 120 120 120 120 120 120 120 120 120 120 120 120 120

Earth Braid Description

(°C) 200 200 200 200 200 200 200 200 200 200 200 200 200 200

Nominal di‐ mensions

TC TC TC TC TC TC TC TC TC TC TC TC TC TC

(mm) 9.5 x 4.0 10.5 x 5.0 9.5 x 4.0 10.5 x 5.0 9.5 x 4.0 10.5 x 5.0 9.5 x 4.0 10.5 x 5.0 9.5 x 4.0 10.5 x 5.0 9.5 x 4.0 10.5 x 5.0 9.5 x 4.0 10.5 x 5.0

Nominal weight

Kg/100m 12 12 12 12 12 12 12 12 12 12 12 12 12 12

TC = Tinned copper ‐ B = Tinned copper braid ‐ BOT = Braid and fluoropolymer o verjacket TTS exposure up to 200°C (maximal 1000 hours exposure time) Temperature/Loading diagram TTS Start‐up temp

230V

120V 16A 20A 30A 16A 20A 30A 10 TTS +10 200 235

100 120 ‐25 175 235 89 120 15 TTS +10 165 189

80 95 ‐25 117 152 189 56 75 95 20 TTS +10 135 160

67 80 ‐25 100 130 160 50 65 80 25 TTS +10 120 140

60 69 ‐25 88 120 140 44 59 69 30 TTS +10 85 114

44 58 ‐25 69 92 114 35 45 58 45 TTS +10 70 82

35 41 ‐25 49 66 82 24 33 41 60 TTS +10 50 64

25 32 ‐25 38 52 64 20 25 32 Maximum recommended length of heating circuit at 230VAC using Type‐C circuit breakers Product ordering information:

Power output + TTS‐Voltage‐(Overjacket) Example: 60 W/m@10°C with tinned copper braiding and fluoropolymer jacket (230V):

60 TTS‐2‐BOT

Example: 15 W/m@10°C with only insulation (120V):

15 TTS‐1

B: tinned copper braid BOT: Braid and fluoropolymer overjacket.

Technical data – Heating cables 24

VärmeKabelTeknik

Velox TTR Regular ‐ Type of cable: Self‐limiting

•

Self‐regulating

•

4 power output ranges

•

Proprietary bonded jacket

Construction 1.25mm² Buswires

Range of application: Velox Regulator is a construction and industrial grade self‐regulating heating cable that may be used for frost protection, or low temperature maintenance of pipe‐ work and vessels.

Semi‐conductive material with self‐ limiting characteris‐ tics (the resistance increases with ris‐ ing temperature)

Function: Self‐regulating heating cables consist of two parallel buswires, embedded semi‐conductive self‐regulating matrix. This means that the heating cable automatically responds to changes in ambient conditions.

With increase in temperature, the synthetic material expands by molecular force, and the connections be‐ tween the carbon particles diminish, reducing the load.

Conversely, as the temperature decreases, so the load increases as the connections between the carbon parti‐ cles increases accordingly.

Thus, the heating power varies according to the tem‐ perature surface of the surface the heating cable is applied to.

Insulation

Earth braiding tinned copper

Self‐regulating heating cables will not overheat or burn‐ out – even when overlapped.

Technical data: Maximum exposure temperature (unpowered) .... 85°C* * maximal 1000 hours exposure time Maximum operating temperature (powered) ......... 65°C Nominal voltage ...................................................... 230 V ............................................... (120 V available on order)

Sheath in fluoropo‐ lymer or thermoplas‐ ic

Minimum bending radius. .....................................25 mm Minimum installation temperature ........................ ‐30oC Maximum resistance of braid .................. 18.2 Ohms/km T‐rating.10,15,25 W/m ................................................ T6 T‐rating 10,15,25 W/m ................................................. T5

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Technical data – Heating cables 25

Velox TTR Regular‐ Type of cable: Self‐limiting Part.no

Power output Maximum Permissabgle Earth Braid Nominal di‐ on insulated ambient ener‐ temperature Description mensions metal pipes at gised de‐energised 10°C

(W/m) (°C) (°C) (mm) 10TTR‐2‐BO 10 65 85 TC 11.5 x 5.5 10TTR‐2‐BOT 10 65 85 TC 11.5 x 5.5 15TTR‐2‐BO 15 65 85 TC 11.5 x 5.5 15TTR‐2‐BOT 15 65 85 TC 11.5 x 5.5 25TTR‐2‐BO 25 65 85 TC 11.5 x 5.5 25TTR‐2‐BOT 25 65 85 TC 11.5 x 5.5 33TTR‐2‐BO 33 65 85 TC 11.5 x 5.5 33TTR‐2‐BOT 33 65 85 TC 11.5 x 5.5 TC = Tinned copper ‐ BO = Braid and thermoplastic overjacket ‐ BOT = Braid and fluoropolymer overjacket Temperature/Loading diagram TTR TTR exposure up to 85°C

Nominal weight

Kg/100m 12 12 12 12 12 12 12 12

Start‐up temp

230V

120V 16A 20A 30A 16A 20A 30A 10 TTR +10 205

95 ‐15 140 186 195 69 90 95 ‐25 123 165 195 60 81 95 15 TTR +10 145 162

67 80 ‐25 93 125 160 45 61 80 ‐25 82 111 160 40 54 80 25 TTR +10 88 117 126 43 58 63 ‐15 60 75 117 27 33 51 ‐25 50 70 105 27 33 51 33 TTR +10 70 90 108 33 45 54 ‐15 50 65 95 25 33 53 ‐25 45 58 85 22 30 43 Maximum recommended length of heating circuit at 230VAC using Type‐C circuit breakers Product ordering information: Power output + TTR‐Voltage‐(Overjacket) Surface temperature on insulated metal pipes (°C)

Example: 33 W/m@10°C with tinned copper braiding and fluoropolymer jacket (230V):

33 TTR‐2‐BOT

Example: 15 W/m@10°C with only insulation (120V):

15 TTR‐1

B: tinned copper braid BO: Braid and thermoplastic overjacet BOT: Braid and fluoropolymer overjacket.

Technical data – Heating cables 26

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Velox AQUA – Type of cable: Self‐limiting

Range of application:

Construction

Frost protection and temperature maintenance of hot‐ water pipes up to 55oC.

Conductors Cu 1.3mm² (AWG‐16)

Cable data: Basic type .............................. 65 CM acc. to SS 424 24 11 Approved, tested by ............................. SEMKO (Sweden) .................................................................. SETI (Finland) ........................................................................... UL (USA) ........................................................... Det Norske Veritas

Armouring layer of thermoplastic rubber (CR)

Semi‐conductive material with self‐limiting characte‐ ristics (the resistance in‐ creases with rising temper‐ ature)

................................................................. Bureau Veritas Connection voltage ........................................ 220 ‐ 240 V

Armouring

Process temp.............................................................. (Tp)

Cu

‐ cable on.............................................. (Tpon) max +65oC ‐ cable off ............................................. (Tpoff) max +85oC Installation temperature .................................. min ‐20oC Bending radius .............................................. min 15 mm Dimension ................................................ 11.1 x 4.8 mm Weight ...................................................... 118 kg/1000m

The AQUA‐cable is manufactured with a sheath of ther‐ mo‐plastic rubber (CR) or tefon (CT).

Table 1 Type of cable

Power +10°C (W/m)

Length max* (m)

T-Class

Part.no

AQUA 55

26

128

T5

8986190

AQUA 60

33

110

T5

89861906

* vid 10% effektbortfall

Sheath in thermo‐ plastic rubber (CR) or Teflon (CT)

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Technical data – Heating cables 27

Velox AQUA – Type of cable: Self‐limiting Max. cable lenghts based on fuse and start/up temperature. Supply voltage 220/240 V. Fuses loaded with 0.8 x nominal current.

Table 2: 10 Ampere Type of cable

Table 3: 16 Ampere

Max. Cable length/Start temperature -20°C

0°C

+10°C

+20°C

Type of cable

AQUA 55

19m

25m

31m

37m

AQUA 60

16m

18m

20m

21m

Table 4: 20 Ampere Type of cable

Max. Cable length/Start temperature -20°C

0°C

+10°C

+20°C

AQUA 55

38m

50m

62m

74m

AQUA 60

32m

37m

41m

43m

Max. Cable length/Start temperature -20°C

0°C

+10°C

+20°C

AQUA 55

30m

41m

49m

59m

AQUA 60

25m

29m

32m

34m

Technical data – Heating cables 28

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Velox switchpoint heating element ORIGO30‐110/120 ‐ Type of cable: Self‐limiting

Range of application:

Construction

Switchpoint heating at railways, tramways, sub‐ ways.

Technical data: Basic type .............................................................. Klass II

Semi‐conductive ma‐ terial with self‐limiting characteristics (the resistance increases with rising temperature)

Conductor 2 x 1.3mm²

Manufactured acc. to ................................... VDE, IEC800 Cable class .......................................... Double insulated* Test voltage ..................................................... 1500 V DC Supply voltage ................................................. 110 /120V Colour:................................................ Black outer sheath Operating temperature ................. max. +120°C / +150°C Exposure temperature .................. max. +160°C / +250°C Installation temperature ................................ min – 20°C

Insulation and outer sheath of fluorpolymer

Bending radius .............................................. min 40 mm Dimension ................................................. 11.5 x 6.5 mm Weight ............................................................. 0.15 kg/m Part.no: ................................................................. VX501 Denomination .......................... Velox ORIGO30‐110/120 Approved by Network Rail – Certification no.

PA05100458 Velox ORIGO30‐110/120 is manufactured with a sheath of PFA. Table 1: Type of cable

Output (W/m)

Length max* (m)

VELOX ORIGO30

110/120

25

* at 10% power loss.

* Double insulated cable with each insulation layer thickness according to IEC:1995. R.M.S. 450/750 V. Min. requirement 0.60mm/layer.

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Technical data – Heating cables 29

Velox switchpoint heating element ORIGO30‐230/240 ‐ Type of cable: Self‐limiting

Range of application:

Construction

Switchpoint heating at railways, tramways, sub‐ ways.

Technical data: Basic type .............................................................. Class II

Conductor 2 x 1.3mm²

Manufactured acc. to .................................. VDE, IEC800 Cable class ........................................... Double insulated* Colour: ................................................. Red outer sheath

Semi‐conductive ma‐ terial with self‐limiting characteristics (the resistance increases with rising temperature)

Test voltage .................................................... 1500 V DC Supply voltage ................................................ 230/240 V Operating temperature ............................... max. +150°C Exposure temperature ................................. max. +250°C Installation temperature................................. min – 20°C

Insulation and outer sheath of fluorpolymer

Output ........................................... vid 10°C ~ 100/130W Bending radius ............................................... min 40 mm Diameter ................................................... 11.5 x 6.5 mm Weight ............................................................. 0.15 kg/m Part.no ................................................................... VX500 Denomination .......................... Velox ORIGO30‐230/240

ORIGO30‐230/240 is manufactured with a sheath of PFA. Table 1: Type of cable VELOX ORIGO30

Output (W/m)

Length max* (m)

100‐110**

25

* at 10% power loss.

** at 10°C

* Double insulated cable with each insulation layer thickness according to IEC:1995. R.M.S. 450/750 V. Min. requirement 0.60mm/layer.

Technical data – Heating cables 30

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Velox switchpoint heating element ORIGO30‐DC ‐ Type of cable: Self‐limiting

Range of application:

Construction

Switchpoint heating at railways, tramways, subways

Technical data: Basic type .............................................................. Klass II Manufactured acc. to ................................... VDE, IEC800

Conductor 2 x 1.3mm²

Cable class .......................................... Double insulated* Colour:................................................. Grey outer sheath

Semi‐conductive ma‐ terial with self‐limiting characteristics (the resistance increases with rising temperature)

Test voltage ..................................................... 1500 V DC Supply voltage .................................... DC. Nominal 750 V Operating temperature ................................ max. +150°C Exposure temperature ................................. max. +250°C Installation temperature ................................ min – 20°C

Insulation and outer sheath of fluorpolymer

Output/m ........................... vid 10°C ~ 100/130W – 750V Bending radius .............................................. min 40 mm Diameter ................................................... 11.5 x 6.5 mm Weight ............................................................. 0.15 kg/m Part.no: ................................................................. VX502 Denomination ................................... Velox ORIGO30‐DC

Velox ORIGO30‐DC is manufactured with a sheath of PFA. Table 1: Type of cable VELOX ORIGO30‐DC

Output (W/m)

Length max* (m)

100*

125

* at 10% power loss.

*

Double insulated cable with each insulation layer thickness according to IEC:1995. R.M.S. 450/750 V. Min. requirement 0.60mm/layer..

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Technical data – Heating cables 31

PARALLEL RESISTIVE HEATING CABLES Parallel resistive cables can be bought as running metre for making‐up on the site. This admits a good flexibility both at new production and repairs. The cable has a constant output per metre irrespective of length and temperature and can be cut on regular distances, most often between 0.5 to 1.2 metres dependent on module lengths from different suppliers.

The heating element in a parallel resistive cable consists of a resistance wire which is coiled round the insulated front con‐ ductors, at the so called contact points (these have been marked as waist on the outer side of the cable) have the resistance wire contact against one of the conductors alternating for each contact point.

The insulation material and the sheath consist normally of teflon material.

There is more detailed information in the cable data sheets.

The heating cable is designed with earth braid that also works as an armouring and corrosion protected sheath of teflon where this is not possible by high temperatures.

Parallel resistive heating cables gives a solid output per meter independent of the ambient temperature. They have no start‐ ing current and can therefore be connected in relatively long lengths, (see cable data).

Index

Parallel resistive cables

Cable

Page

CWM ................................................................... 35-36 EST ................................................................... 37-38 PHB 240 VAC ...................................................... 39-40 PBH 70...................................................................... 41 PBH 70...................................................................... 42 PHB 750 VDC ........................................................... 43

Technical data – Heating cables 32

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Velox CWM ‐ Type of cable: Parallel resistive

Range of application:

Construction

Temperature maintenance and heating up piping, tanks, vents etc in plants at an operating temperature up to 120°C.

Copper conductors – 3.5mm² (12 AWG)

CWM can be installed at plants which are steam puri‐ fied.

Conductor insulation Teflon FEP 220°C

CWM has a sheath of corrosions toughened material (Teflon) and manages aggressive environmentals.

Technical data:

Resistance‐wire Nicrome

Basic type .................................. NG/NC enl. SEN 242421 Tested and approved by .................................... UL (USA) ......................................................................... CSA (USA) Output ............................................................. Se Table 1 Zone length ..................................................... Se Table 1 Conductor area .................................................. 3.5 mm2 Rated voltage ......................................................... 440 V Operating voltage .......................................... see Table 1

Armouring layer Teflon FEP 220°C

Process temperature. ...................................................... ‐ Cable on .......................................... (Tpon) see diagram ‐ Cable off ........................................... (Tpoff) max +205oC

Armouring braided Cu

Installation temperature. ................................. min ‐30 C o

Bending radius .............................................. min 50 mm Diameter ..................................................... 9.5 x 7.0 mm Weight ...................................................... 170 kg/1000m Sheath in Teflon FEP

Table 1 Type of Cable

Power (W/m)

Voltage (V)

Max. length (m)

Module length (mm)

CWM4-2C(T)

12/36

230/440

215/120

760

CWM8-2C(T)

24

230

160

610

CWM10-2C(T)

30

230

130

610

CWM12-2C(T)

36

230

120

610

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Technical data – Heating cables 33

Velox CWM ‐ Type of cable: Parallel resistive

Sheath temperature

The sheath temperature (Tm) of the cable will vary de‐ pending on the process (ambient) temperature (Tp), load (Q) and way of installation.

Diagram 1: Max output/m versus operating temp on horisontal axis Maximum running metre output in relation to the proc‐ ess temperature of the heating cable.

The sheath temperature is calculated as follows:

Q Tm = _____ +Tp

UA Tm

= Sheath temperature in oC

Tp

= Process temperature in oC

Q

= Load in W/m

U

= Heat transfer coeff.

A

= Sheath area per m cable (m²/m)

Cable without discharge: U* = 17‐28 W/m² _

With aluminium tape: U* = 57 W/m² ‐‐‐‐‐ * Observe that the heat transfer capacity is considerably improved with aluminium tape.

Heating cable of the type CWM can be used at varying supply voltages to obtain required output per running metre.

Type of cable

Supply voltage

Resistance/m

Current/m (230V)

115V

230V

400V

CWM4-2CT

3.0 W/m

12 W/m

36 W/m

4400 Ω ± 10%

0.052 A/m

CWM8-2CT

6.0 W/m

24 W/m

---

2204 Ω ± 10%

0.104 A/m

CWM10-2CT

7.5 W/m

30 W/m

---

5760 Ω ± 10%

0.130 A/m

CWM12-2CT

9.0 W/m

36 W/m

---

1470 Ω ± 10%

0.156 A/m

Please contact VärmeKabelTeknik for assistance with design and installation if any questions!

Technical data – Heating cables 34

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Velox EST ‐ Type of cable: Parallel resistive

Range of application:

Konstruktion

Temperature maintenance and heating of piping, tanks, vents etc in plants with operating temperatures up to 120oC.

Conductors – Cu 2.5mm² 19 x 0.41mm

EST can be installed at plants which are steam purified.

Conductor insulation Teflon FEP 220°C

EST has a sheath of corrosions toughened material (tef‐ lon) and manages aggressive environmentals.

Technical data: Basic type .................................. NG/NC enl. SEN 242421 Resistance‐wire Kanthal DSD 0.10

Tested and approved by ...................... SEMKO (Sweden) ................................................................... SETI (Finland) Output ........................................................... See Table 1 Zone length ................................................................ 1 m Conductor area .................................................. 2.5 mm2 Rated voltage ......................................................... 440 V Operating voltage ............................................ se Table 1 Process temperature. ................................................ (Tp)

Armouring layer Teflon FEP

‐ Cable on .......................................... (Tpon) max +120oC ‐ Cable off ........................................... (Tpoff) max +200oC Installation temperature. ................................. min ‐30oC

Armouring, Braided Cu, 16x4x0.31mm

Bending radius .............................................. min 50 mm Diameter ..................................................... 9.5 x 7.0 mm Weight ...................................................... 170 kg/1000m

Sheath in Teflon FEP

Table 1

Type of cable

Output (W/m)

Voltage (V)

Max.Length (m)

Part.no

EST30

30

230

120

89 852 55

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Technical data – Heating cables 35

Velox EST ‐ Type of cable: Parallel resistive

Sheath temperature

The sheath temperature (Tm) of the cable will vary de‐ pending on the process (ambient) temperature (Tp), load (Q) and way of installation.

Sheath temperature: Diagram 1 Cable installed free in air or against heat conducting material (Ua = 0.6)

The sheath temperature is calculated as follows:

Q Tm = _____ +Tp

Ua Tp = Process temperature in oC Q

= Load in W/m

Ua = Heat transfer coeff.

Example: Velox EST mounted without dissipation of heat at an ambient temperature of 25oC, output 30 W/m, will have a sheath temperature of 75oC.

Dissipation of heat The heat transfer coefficient (Ua) can be improved considerably (3 to 10 times) by arranging some dissipation of heat, for instance by providing the cable with aluminium tape or heat conductive concrete at the installation.

This will enable you to use the heating cable also where high process tem‐ peratures are involved.

For this kind of installation please consult VärmeKabelTeknik for assistance with the design and installation.

Technical data – Heating cables 36

VärmeKabelTeknik

Velox PH‐240 V AC ‐ Type of cable: Parallel resistive heating cable

Range of application:

Construction

Industrial heating: Pipes, tanks, cisterns.

PHB 240 VAC is teflon insulated and have a sheath of corrosions toughened material (teflon) which manages aggressive environments.

Conductor copper alloy 1.5mm²

Technical data: Conductor insulation fluorplast

Manufacturing std. /Basic type ........... VDE 253 / EEC800 Tested and approved by .............................................. CE Test voltage ..................................................... 3000 VDC Rated voltage ........................................... 220 ‐ 240 VAC

Conductor layer

Output ........................................................... 10W / 12W ...................................................................... 20W / 24W

Conductor NiCr

...................................................................... 30W / 36W Distance between contact points…1 meter Max. operating temp.. ........................................... 150°C Max. exposure temp.. ............................................ 200°C Installation temperature. ................................. min ‐30oC Bending radius .............................................. min 50 mm Size ............................................................ 7,8 x 5,6 mm Weight ..............................................................................

Sheath Fluorplast (FEP)

PHB is manufactured with a sheath of Flourplast.

Table 1: Type of cable

Output (W/m)

Length max* (m)

VELOX PH240 -10

10

120

VELOX PH240-20

20

90

VELOX PH240-30

30

75

Screen copper alloy

Sheath 2 Fluorplast (FEP)

* at 10% power loss.

VELOX PHB

250 °C

200 °C Manteltemperatur

PHB-10 Bare PHB-10 Alu

150 °C PHB-20 Bare PHB-20 Alu

100 °C PHB-30 Bare PHB-30 Alu

50 °C

0 °C 0

10

20

30

40

50

60

70

80

Process temperatur °C

90

100

110

120

130

150

VärmeKabelTeknik

Technical data – Heating cables 37

Velox PH‐70 VAC Type of cable: Parallel resistive Double insulated

Range of application: Switch heating at railways, subways, tramways.

Construction

PH‐70 is a parallel resistive, teflon insulated heating cable which can be cut at contact points every me‐ ter.

Conductor, tin‐coated Cu, 1.5mm²

Outer sheath made out of corrosive toughened material (teflon)

Conductor insulation

PH‐70 have double sheath and lacks earth screen.

fluorplast

Technical data:

Heating conductor

Manufacturing std./Basic type ........... VDE 253 / EEC800

Bed for

Approved, tested acc. to .............................................. CE

Ni‐Cr

heating con‐ ductor

Colour: ............................................ Orange outer sheath Test voltage ..................................................... 3000 VDC Supply voltage ................ 220 / 240 VAC or 110/120 VAC Output ........................................................... 70W / 84W Distance between contact points: ...................... 1 meter Max. Operating temperature .................................150°C

Sheath 1 Fluorplast

Max. exposure temperature. ..................................200°C Installation temperature.................................. min ‐30oC Bending radius ............................................... min 50 mm Diameter ................................................... 7,8 x 5,6 mm Weight ........................................................ 75 kg/1000m Part.no: ................................................. VX503 220‐240V

Sheath 2 Fluorplast

............................................................... VX50. 110‐120V Denomination: ...................................... Velox PH‐70 VAC PH‐70 is manufactured with a sheath of PFA. Table 1: Type of cable

Output (W/m)

Length max* (m)

70

52

Insulation

* at 10% power loss.

If two cables are installed parallel under same channel, standard channel you will have a constant wattage pa‐ rallel resistance cable with output up to 200 W/m.

2 cables installed parallel under channel ref.no 6‐16‐1.

VELOX PHB‐70

Technical data – Heating cables 38

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Velox PH‐90 VAC ‐ Type of cable: Parallel resistive Double insulated

Range of application:

Construction

Switch heating at railways, subways, tramways.

PH‐90 is a parallel resistive, teflon insulated heating cable which can be cut at contact points every me‐ ter.

Conductor, tin‐coated Cu, 1.5mm²

Outer sheath made out of corrosive toughened material (teflon)

Conductor insulation

PH‐90 have double sheath and lacks earth screen.

fluorplast

Technical data:

Heating conductor

Manufacturing std./Basic type ............ VDE 253 / EEC800

Bed for

Approved, tested av ..................................................... CE

Ni‐Cr

heating con‐ ductor

Colour:.................................................. Red outer sheath Test voltage: ..................................................... 3000 VDC Supply voltage ................................... 220 / 240 VAC eller ...................................................................... 110 / 120 V Output ...................................................................... 90W Distance between contact points: ................... 0.5 meter

Sheath 1 Fluorplast

Max. Operating temperature ................................. 150°C Max. exposure temperature. ................................. 230°C Installation temperature .................................. min ‐30oC Bending radius .............................................. min 50 mm Diameter ................................................... 7,8 x 5,6 mm Weight ........................................................ 75 kg/1000m

Sheath 2 Fluorplast

Part.no: .................................................. VX50 220‐240V ............................................................... VX50. 110‐120V Denomination: ...................................... Velox PH‐90 VAC PH‐90 is manufactured with a sheath of PFA. Table 1: Type of cable VELOX PHB 90 * at 10% power loss.

Output (W/m) 90

Length max* (m) 52

Insulation If two cables are installed parallel under same channel, standard channel you will have a constant wattage pa‐ rallel resistance cable with output up to 200 W/m.

2 cables installed parallel under channel ref.no 6‐16‐1/F

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Technical data – Heating cables 39

Velox PH‐750 VDC ‐ Type of cable: Parallel resistive Double insulated

Range of application:

Construction

Switch heating at railways, subways, tramways.

PH‐750 have a double sheath of corrosion hardened material (teflon) and manages aggressive environ‐ mentals.

Conductor, tin‐coated Cu, 1.5mm²

PH‐750 is double insulated without earth.

Conductor insulation

Technical data:

fluorplast

Basic type ............................................. VDE 253 /EEC800

Heating conductor

Approved, tested av..................................................... CE

Bed for

Colour: ..............................................Green outer sheath Test voltage ..................................................... 3000 VDC

Ni‐Cr

heating con‐ ductor

Supply voltage ................................................... 750 VDC Output ............................................................... 70W / m Distance between contact points ....................... 2 meter Max. Operating temperature .................................180°C Max. exposure temperature ...................................230°C Installation temperature.................................. min ‐30oC

Sheath 1 Fluorplast

Bending radius ............................................... min 50 mm Diameter ................................................... 7,8 x 5,6 mm Weight ........................................................ 75 kg/1000m Part.no: .................................................................. VX504 Denomination: .................................... Velox PH‐750 VDC Note: PH‐750 VDC is installed on 750 V with a channel of Glasfiber plastic.

Sheath 2 Fluorplast

Table 1: Type of cable VELOX PHB‐750

Output (W/m)

Length max* (m)

70

160

Insulation

* at 10% power loss.

If two cables are installed parallel under same channel, standard channel you will have a constant wattage pa‐ rallel resistance cable with output up to 200 W/m.

2 cables installed parallel under channel ref.no 6‐18‐9

Technical data – Heating cables 40

VärmeKabelTeknik

TECHNICAL INFORMATION/REFERENCE DATA

Corrosion guide for electric immersion heaters

The following corrosion guide recommendations must not be interpreted as a positive recommendation of your choice of sheath material for electrical immersion heaters. Use this information as a guide in your investi‐ gation of your heating process, and arrive at the proper choice based upon your intimate knowledge of the con‐ ditions which exist at the job site.

Be very selective in your consideration of heater sheath material. Remember that recommended materials of construction for your tank may not survive as sheathing for the immersion heater. The sheath of an immersion heater function as a heat transfer surface, and thus is operating at temperatures above the control tempera‐ ture of the process. Such temperatures and fluid move‐ ment impose severe corrosion conditions on the metal surface.

Success of your choise of sheath material will depend upon many factors which are within your power to con‐ trol: 1) Control the chemistry of solution.. a. Avoid carry‐over from other processes. b. Control dpletion of bath chemistry. c. Filter or remove accumulating sludge. Sludge im‐ pedes flow of heat from heaters and accelerates cor‐ rosion.

2) Control process temperature. a. Temperature accelerates all corrosion processes.

Excess temperatures mean shorter heater life.

3) Avoid contacts between dissimlar metals which could initiate galvanic type corrosion.

4) For safety to personnel against electrical shock, metal sheath heaters must be grounded to the tank and, in turn, to earth. Consider the use of a ground fault circuit interrupter for optimum safety.

5) For processes involving electroplating, immersion heaters must be kept out of the space between anode and cathode where the effects of plating cur‐ rent may damage the heater surface.

6) The immersion heaters should be examined period‐ ically for corrosion so that corrective action can be taken to maintain continuity of operation.

Notes and legends to corrosion guide 1.

This solution involves a mixture of various chemical compounds whose identity and proportions are un‐ known or subject to change without our knowledge.

Check supplier to confirm choice of sheath material plus alternate sheath materials that may be used.

2.

Caution – Flammable material.

3.

Chemical composition varies widely. Check supplier for specific recommendations.

4.

Direct immersion heaters not practical. Use clamp‐ on heaters on outside surface of cast iron pot.

5.

Element surface loading should not exceed 20 W/sq.inch.

6.

For concentrations greater than 15%, element sur‐ face loading should not exceed 20W/sq.inch.

7.

See suggested watt density chart.

8.

Remove crusts at liquid level.

9.

Clean often.

10. Do not exceed 12wpsi.

11. Passivate stainless steel, Inconel and Incoloy Because so many factors are beyond our control, the VärmeKabelTeknik company cannot be responsible for any electric immersion failure that can be attributed to corrosion. This is in lieu of any warranties, written or verbal, relative to heater performance in a corrosive environment.

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Technical data – Heating cables 41

TECHNICAL INFORMATION/REFERENCE DATA

Corrosion guide for electric immersion heaters

Technical data – Heating cables 42

TECHNICAL INFORMATION/REFERENCE DATA

VärmeKabelTeknik

Corrosion guide for electric immersion heaters

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TECHNICAL INFORMATION/REFERENCE DATA

Technical data – Heating cables 43

Corrosion guide for electric immersion heaters

Technical data – Heating cables 44

TECHNICAL INFORMATION/REFERENCE DATA

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Corrosion guide for electric immersion heaters

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TECHNICAL INFORMATION/REFERENCE DATA

Technical data – Heating cables 45

Corrosion guide for electric immersion heaters

Technical data – Heating cables 46

TECHNICAL INFORMATION/REFERENCE DATA

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Corrosion guide for electric immersion heaters

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TECHNICAL INFORMATION/REFERENCE DATA

Technical data – Heating cables 47

Corrosion guide for electric immersion heaters

Technical data – Heating cables 48

TECHNICAL INFORMATION/REFERENCE DATA

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Corrosion guide for electric immersion heaters

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TECHNICAL INFORMATION/REFERENCE DATA

Technical data – Heating cables 49

Corrosion guide for electric immersion heaters

Technical data – Heating cables 50

TECHNICAL INFORMATION/REFERENCE DATA

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Corrosion guide for electric immersion heaters

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TECHNICAL INFORMATION/REFERENCE DATA

Technical data – Heating cables 51

Corrosion guide for electric immersion heaters

Technical data – Heating cables 52

TECHNICAL INFORMATION/REFERENCE DATA

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Corrosion guide for electric immersion heaters

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Technical data – Heating cables 53

TECHNICAL INFORMATION/REFERENCE DATA

Corrosion guide for electric immersion heaters

Technical data – Heating cables 54

VärmeKabelTeknik

TECHNICAL INFORMATION/REFERENCE DATA NEMA Type Enclosures for Electrical Equipment (1000 Volts Maximum).

The following descriptions are excerpts from NEMA's "Standards Publication/No. 250‐‐1985" NON‐CLASSIFIED LOCATION ENCLOSURES Type 1 Enclosures Type 1 enclosures are intended for indoor use primarily to provide a de‐ gree of protection against contact with the enclosed equipment in locations where unusual service conditions do not exist. The enclosures shall meet the rod entry and rust‐resistance design tests.

Type 2 Enclosures Type 2 enclosures are intended for indoor use primarily to provide a de‐ gree of protection against limited amounts of falling water and dirt.

These enclosures shall meet rod entry, drip, and rust‐resistance design tests.

They are not intended to provide pro‐ tection against conditions such as dust or internal condensation.

Type 3 Enclosures Type 3 enclosures are intended for outdoor use primarily to a degree of protection against windblown dust, rain and sleet; and to be undamaged by the formation of ice on the enclosure.

They shall meet rain, external icing, dust, and rust‐resistance design tests.

They are not intended to provide pro‐ tection against conditions such as in‐ ternal condensation or internal icing.

Type 3R Enclosures Type 3R enclosures are intended for outdoor use primarily to provide a degree of protection against falling rain; and to be undamaged by the for‐ mation of ice on the enclosure. They shall meet rod entry, rain, external icing, and rust‐resistance design tests.

They are not intended to provide pro‐ tection against conditions such as dust, internal condensation, or internal icing.

Type 3S Enclosures Type 3S enclosures are intended for outdoor use primarily to provide a degree of protection against wind‐ blown dust, rain and sleet and to pro‐ vide for operation of external mecha‐ nisms when ice laden. They shall meet rain, dust, external icing, and rust‐ resistance design tests. They are not intended to provide protection against conditions such as internal condensa‐ tion or internal icing.

Type 4 Enclosures Type 4 enclosures are intended for indoor or outdoor use primarily to provide a degree of protection against windblown dust and rain, splashing water,and hose‐directed water; and to be undamaged by the formation of ice on the enclosure. They shall meet hosedown, external icing, and rust‐ resistance design tests. They are not intended to provide protection against conditions such as internal condensa‐ tion or internal icing.

Type 4X Enclosures Type 4X enclosures are intended for indoor or outdoor use primarily to provide a degree of protection against corrosion, windblown dust and rain, splashing water, and hose‐directed water; and to be undamaged by the formation of ice on the enclosure. They shall meet the hosedown, external icing, and corrosion‐resistance design tests. They are not intended to provide protection against conditions such as internal condensation or internal icing.

Type 5 Enclosures Type 5 enclosures are intended for indoor use primarily to provide a de‐ gree of protection against settling air‐ borne dust, falling dirt, and dripping non‐corrosive liquids. They shall meet drip, settling air‐borne dust, and rust‐ resistance design tests. They are not intended to provide protection against internal condensation.

Type 6 Enclosures Type 6 enclosures are intended for indoor or outdoor use primarily to provide a degree of protection against the entry of water during temporary submersion at a limited depth; and to be undamaged by the formation of ice on the enclosure. They shall meet submersion, external icing, and rust‐ resistance design tests. They are not intended to provide protection against conditions such as internal condensa‐ tion, internal icing, or corrosive envi‐ ronments.

Type 6P Enclosures Type 6P enclosures are intended for indoor or outdoor use primarily to provide a degree of protection against the entry of water during prolonged submersion at a limited depth; and to be undamaged by the formation of ice on the enclosure. They shall meet air pressure, external icing, and corrosion‐ resistance design tests. They are not intended to provide protection against conditions such as internal condensa‐ tion or internal icing.

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Technical data – Heating cables 55

TECHNICAL INFORMATION/REFERENCE DATA NEMA Type Enclosures for Electrical Equipment (1000 Volts Maximum).

The following descriptions are excerpts from NEMA's "Standards Publication/No. 250‐‐1985" Type 11 Enclosures Type 11 enclosures are intended for indoor use primarily to provide a de‐ gree of protection against the corrosive effects or liquids and gases. In addition, they protect the enclosed equipment against the corrosive effects of fumes and gases by providing for immersion of the equipment in oil. They shall meet drip and corrosion‐resistance design tests. They are not intended to provide protection against conditions such as internal condensation or inter‐ nal icing.

Type 12 Enclosures Type 12 enclosures are intended for indoor use primarily to provide a de‐ gree of protection against dust, falling dirt, and dripping noncorrosive liquids.

They shall meet drip, dust, and rust‐ resistance design tests. They are not intended to provide protection against conditions such as internal condensa‐ tion.

Type 12K Enclosures Type 12K enclosure with knockouts are intended for indoor use primarily to provide a degree of protection against dust, falling dirt, and dripping noncor‐ rosive liquids other than at knockouts.

They shall meet drip, dust, and rust‐ resistance design tests. Knockouts are provided only in the top or bottom walls, or both. After installation of the enclosure, the knockout areas shall meet the environmental characteristics listed above (see NEMA "Standards Publication/No. 250‐1985"). They are not intended to provide protection against conditions such as internal condensation.

Type 13 Enclosures Type 13 enclosures are intended for indoor use primarily to provide a de‐ gree of protection against dust, spray‐ ing of water, oil and noncorrosive cool‐ ant. They shall meet oil exclusion and rust‐resistance design tests. They are not intended to provide protection against conditions such as internal condensation.

CLASSIFIED LOCATION ENCLOSURES Type 7 Enclosures Type 7 enclosures are for indoor use in locations classified as Class I, Groups A, B, C, or D, as defined in the National Electrical Code.

Type 8 Enclosures Type 8 enclosures are for indoor or outdoor use in locations classified as Class I, Groups A, B, C. or D, as defined in the National Electrical Code.

Type 9 Enclosures Type 9 enclosures are intended for indoor use in locations classified as Class II, Groups E, or G, as defined in the National Electrical Code. (Group F was reinstated in the 1987 NEC).

Type 10 Enclosures (MSHA) Type 10 enclosures shall be capable of meeting the requirements of the Mine Safety and Health Administra‐ tion, 30 C.F.R., Part 18

Technical data – Heating cables 56

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TECHNICAL INFORMATION/REFERENCE DATA

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Technical data – Heating cables 57

Notes

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Technical data – Heating cables 58

VärmeKabelTeknik

Telephone: +46‐301‐418 40 – Email: info@vkts.se – Homepage: www.vkts.se

Industrihuset

Södra Hedensbyn 43

S‐430 64 HÄLLINGSJÖ

S‐931 91 SKELLEFTEÅ

Sweden

Sweden

Fax: +46‐301‐418 70

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