Single Core Cables To BS 6622

Hebei Hualun Cable Co., Ltd. is one of the most reliable manufacturers and suppliers of single core cables to bs 6622 in China. If you're going to wholesale durable single core cables to bs 6622 made in China, welcome to get quotation from our factory. All customized products are with high quality and competitive price.

Single Core Cables to BS 6622 have a plain annealed copper or aluminium conductor complying with IEC 60228/BS 6360. Copper conductors shall be stranded (class 2) and aluminium conductors shall be either solid or stranded (class 2). Insulation is of cross-linked polyethylene compound XLPE (GP8) conforming to BS 7655-1.3 or EPR (GP7), conforming to BS 7655-1.2. Overall sheath comprises a layer of extruded either PVC type 9 conforming to BS 7665-4.2 or MDPE type TS2 conforming to BS 7655-10.1. They are designed for distribution of electrical power with nominal voltage 3.8/6.6KV to 19/33KV and frequency 50Hz. They are suitable for installation mostly in power supply stations, indoors and in cable ducts, outdoors, underground and in water, as well as on cable trays for industries, switchboards and power stations.

 

 

 

Performance Characteristics

 

1.Conductor is plain annealed copper or aluminium, complying with IEC 60228/BS 6360

2.Copper conductors are stranded (class 2), aluminium conductors are solid or stranded (class 2)

3.Insulation is XLPE (GP8) conforming to BS 7655-1.3, or EPR (GP7) conforming to BS 7655-1.2

4.Over sheath is extruded PVC type 9 or MDPE type TS2

5.Follows BS6622

6.Suitable for power supply stations, indoors, cable ducts, outdoors, underground, in water and on cable trays

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Product Q&A

 

Q: What are the characteristics of the insulation of Single Core Cables to BS 6622 under long-term high-temperature operation?

A: XLPE (GP8) insulation has a long-term allowable working temperature of 90°C and low dielectric loss at high temperatures. EPR (GP7) insulation has better flexibility and is suitable for installation routes requiring some bending. Both can be selected according to project requirements.

Q: What advantages does the MDPE over sheath of this cable offer for direct burial installation?

A: The MDPE TS2 over sheath has better abrasion resistance and resistance to environmental stress cracking than PVC, making it suitable for direct burial. During direct burial, it is still necessary to avoid scratching during construction, and the backfill soil should be screened to prevent hard objects from coming into direct contact with the cable surface.

Q: What are the fixing requirements for single core cables when this cable is installed on cable trays?

A: Single core cables on trays should be arranged in a triangular formation or spaced apart as designed. Fixing cleats should be made of non-magnetic material to avoid forming a closed magnetic circuit and generating induced currents. For vertical installation, cleats should be installed at the designed spacing to prevent the cable from slipping under its own weight.

 

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