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Caledonian Instrumentation Cables BS5308 Part 1 BS5308 Cable Part 1 Type 2 MG-XLPE-OS-SWA-LSOH Application The armoured fire resistant versions (Part 1 Type 2) are typically used in chemical and process industries where there is danger of fire. The galvanised steel wire armour provides excellent protection.

Construction LSOH inner sheath Galvanized steel wire armour Mica glass tape + XLPE insulation PETP transparent binder tape Anealed copper conductor PETP transparent tape Tinned copper drain wire Overall Aluminium/polyester tape screen LSOH outer sheath

Conductor

Annealed or tinned copper, Class 5

Insulation

Mica glass tape, XLPE (Cross Linked Polyethylene)

Pairing Colour code

Two insulated conductors uniformly twisted together with a lay not exceeding 100mm See technical information

Binder tape Collective screen Inner Sheath

PETP transparent tape Aluminium/polyester tape is applied over the laid up pairs metallic side down in contact with tinned copper drain wire, 0.5mm²

Amour

Galvanized steel wire armour

Outer sheath

Sheath colour

LSOH(Low Smoke Zero Halogen) sheath LSOH(Low Smoke Zero Halogen) sheath Flame retardant to IEC60332-3-22 Fire resistant to IEC60331 Halogen free to IEC60754-1 Low smoke emission to IEC61034-1-2 Black or blue

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Mechanical and Electrical Properties Operating temperature: -20˚C up to + 90˚C( fixed installation) 0˚C to +50˚C(during operation ) Minimum bending radius: 6 x overall diameter Conductor Area Size

mm2

0.75

Conductor Stranding

No. x mm

7 x 0.37

ohm/km

24.5

Gohm/km

5

pF/250m

250

pF/m

115

pF/m

75

μH/ohm

25

V

1000

V

1000

V

300/500

Conductor resistance max Insulation resistance min Capacitance unbalance at 1 kHz(pair to pair screen) Max. Mutual Capacitance @ 1 kHz forNon OS or OS cables (except one-pair and twopairs) Max. Mutual Capacitance @ 1 kHz IS/OS cables (include 1 pair and 2 pair) Max. L/R Ratio for adjacent cores(Inductance/Resistance) Core to core Test voltage Core to screen Rated voltage max

Parameter

mm

Nominal Thickness of bedding mm

Nominal Thickness of Armour mm

Nominal Thickness of Sheath mm

no./mm

Nominal Conductor CrossSectional Area mm2

5

24/0.2

0.75

0.6

1.2

1.25

1.6

22.5

8

24/0.2

0.75

0.6

1.2

1.25

1.6

25.6

No.of Pairs

No.and Dia. of Wires

Nominal Thickness of Insulation

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Nominal Dia. of Cable

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mm

bs5308 mica fire resistant instrumentation cables  

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