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 Type1 MG-XLPE-OS-LSOH

Application

The unarmoured fire resistant versions (Part 1 Type 1) are typically used in chemical and process

industries where there is danger of fire.

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

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

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: 5 x overall diameter

Conductor Area Size

mm 2

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 forNon 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 Sheath

Nominal Dia. of Cable

Approx.Weight

 

no./mm

mm2

mm

mm

mm

kg/km

1

7/0.43

1

0.6

1.4

7.8

89

2

7/0.43

1

0.6

1.4

9.2

121

5

7/0.43

1

0.6

1.4

13.9

298