BS 5308 Cables  
BS5308 Part 1 / Type 1 BS5308 Part 1 / Type 2 BS5308 Part 2 / Type 1

BS 5308 Cables

BS5308 Part 1

 BS5308 Part 1 / Type 1 (unarmoured cables)

      BS5308 Cable Part 1 Type 2 MG-XLPE-IS-OS-SWA-LSOH

Application

The armoured fire resistant versions (Part 1Type 2) are typically used in chemical and process industries where there is danger of fire. The galvanised steel wire armour provides excellent protection.

Construction

Conductor

Annealed copper, Class 2

Insulation

Mica glass tape, XLPE (Cross Linked Polyethylene), or PE (optional)

Pairing

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

Colour code

See technical information

Individual screen

Aluminium/polyester tape is applied over each pair metallic side down in contact with tinned copper drain wire, 0.5mm²

Binder tape

PETP transparent tape

Collective screen

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

Inner Sheath

LSOH(Low Smoke Zero Halogen) sheath

Amour

Galvanized steel wire armour

Outer 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

Sheath colour

Black or blue

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

0.5

0.75

1.0

1.5

Conductor Stranding

No. x mm

7 x 0.3

7 x 0.37

7 x 0.43

7 x 0.53

Conductor resistance max

ohm/km

39

24.5

18.1

12.1

Insulation resistance min

Gohm/km

5

5

5

5

Capacitance unbalance at 1 kHz(pair to pair screen)

pF/250m

 

250

 

Max. Mutual Capacitance @ 1 kHz for Non OS or OS cables (except one-pair and two-pairs)

pF/m

115

115

115

115

Max. Mutual Capacitance @ 1 kHz IS/OS cables (include 1 pair and 2 pair)

pF/m

75

75

75

75

Max. L/R Ratio for adjacent cores(Inductance/Resistance)

μH/ohm

25

25

25

40

Test voltage

Core to core

V

1000

1000

1000

1000

Core to screen

V

1000

1000

1000

1000

Rated voltage max

V

300/500

300/500

300/500

300/500


No.of Pairs

No.and Dia. of Wires

Nominal Conductor Cross-Sectional Area

Nominal Thickness of Insulation

Nominal Thickness of bedding

Nominal Dia. over Bedding

Nominal Thickness of Armour

Nominal Thickness of Sheath

Nominal Dia. of Cable

Approx.Weight

 

no./mm

mm2

mm

mm

mm

mm

mm

mm

kg/km

5

7/0.37

0.75

0.6

0.8

15.0

0.9

1.4

20.3

870

10

7/0.37

0.75

0.6

0.8

19.8

0.9

1.4

25.9

1480

5

7/0.43

1

0.6

0.8

14.8

0.9

1.4

20.0

890