BS 7846 Power Cable

Tianjin Beida is a China BS 7846 Power Cable manufacturer and supplier. This kind of cable is a halogen free low smoke fire resistant low voltage power cable, which can be used for emergency lighting, power supply and control lines requiring fire resistant environment. The cable adopts double-layer mica tape fire resistant layer, steel wire armor and halogen free low smoke sheath protection. In case of fire, this kind of cable can maintain normal power supply for 90 minutes in 750°C environment, and the smoke generated is very small, and the smoke is nontoxic. It can give personnel a certain escape time. It can be applied in densely populated places. It can be installed inside buildings or buried directly underground.

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Product Description

The greatest advantage of BS 7846 power cable is its excellent fire resistance. In the event of a fire, the cable can operate continuously at 750ºC for 90 minutes, ensuring that emergency lighting and power supply are not interrupted. The cable adopts double-layer mica tape fire resistant layer and steel wire armor design, which ensures that even in extreme cases such as fire, the power supply is still stable, and the life safety of personnel can be guaranteed to the greatest extent. This means that BS 7846 power cables can provide you with strong protection in case of sudden disasters, whether you are installed in high-rise buildings or underground pipelines.

Product Structure

Bs 7846 Power Cable

BS 7846 Power Cable is composed of a T1R copper conductor , MICA tape, XLPE insulation, LSOH bedding, Steel-wires armour and LSOH sheath.

Conductor: Solid Copper or Aluminium conductor , circular or Shaped, Class 2 to BS EN 60228.

Insulation: XLPE Type GP8 as per BS 7655-1.3

Core Colour: 1 core: borwn or blue

2 cores: borwn, blue

3 cores: borwn, black, Grey

4 cores: blue, borwn, black, Grey

5 cores:green/yellow, blue, borwn, black, Grey

Above 5 coes: white cores with black number

Bedding: The bedding shall be extruded LSOH polymeric material consistent consistent with the operating temperature of the cable.

Steel-wires armour: Single core cable: aluminum wire armour

Multi core cable: steel wire armour

Outer sheath: The sheath shall be extruded LSOH material specified in BS 7655-6.1.

Performance parameter

Rated voltage: 600/1000kV

Test voltage: 3.5kV for 5 minutes no brokendown occured

Working temperature: 0º C to +90 ºC

Short circuit temperature: +250 ºC

Minimum Bending radius: 12* OD;

Single root vertical combustion test: BS EN 50265-2-1

Flame-retradant: BS EN 50266-2-4, BS EN 60332-1-2

Fire-resistance: BS 8491

Halogen-free test: IEC 60754, BS EN 50267

Smoke density test: IEC 61034, BS EN 50268

Difference and Selection of Common British Standard Power Cables

No.	model	executive standard	cable difference	Use environmental differences
1	CU/PVC/PVC/SWA/PVC	BS 6346	PVC insulation and PVC sheath	Maximum operating temperature 70ºC, halogen cable, not used in densely populated indoor occasions
2	CU/XLPE/PVC/SWA/PVC	BS 5467	XLPE insulation and PVC sheath	Maximum operating temperature 90ºC, halogen cable, not used in densely populated indoor areas
3	CU/XLPE/LSOH/SWA/LSOH	BS 6724	XLPE insulation and LSOH sheath	Maximum operating temperature 90ºC, halogen free cable, suitable for densely populated indoor applications
4	CU/MICA/XLPE/LSOH/SWA/LSOH	BS 7846	Fire resistant XLPE insulation and LSOH sheath	Maximum working temperature 90ºC, halogen free fire resistant cable, can be used for densely populated indoor occasions, fire emergency lines, fire elevators, etc.