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Tri-Rated/ Bi-Rated Cables

Powermet keep stock of a complete range of Tri-Rated and Bi- Rated cable for use in earthing electrical systems and power distribution networks. We can cut this to what ever length you require and deliver next day to anywhere in the UK from stock.

 

Tri-Rated cable (also known as control panel wire or switchgear cable) is a fire-retardant cable used in electrical cabinets, switch control, relay and instrumentation panels of power switchgear, and for internal connectors in rectifier equipment, motor starters and controllers. As a result, tri-rated cable has applications in most industries. These flexible, high temperature, flame-retardant, single core cables have a single layer of heat resistant polyvinyl chloride (PVC) insulation. These cables are referred to as H05V2-K and H07V2-K under their European harmonisation (HAR) designation code.

British Standard Institute – British Standard BS6231 Type CK. This standard covers single core PVC insulated flexible electrical cables of rated voltage 600/1000V for switchgear and control gear wiring.

British Standard BS6231 Type CK specifications require this high temperature cable to operate at a maximum temperature of 90oC in continuous use, however tri rated cable has a maximum operating temperature of 105oC in order to also comply with UL758 and CSA 22.2 No.210. Tri-rated cable, panel wire manufactured to BS6231 Type CK, should not be confused with other cable manufactured to BS6231 Type BK which has a maximum conductor operating temperature of 70oC.

 

Bi-Rated Cable

As BS6231 covers sizes up to a maximum of 240mm2, panel wire with a size ranging up to 500mm2 which are covered under the specifications set by the CSA and UL are known as bi-rated cables.

Benefits/ Technical
  • BS6231 Standard and Basec Approved
  • High conductivity
  • 600/1000 Volts
  • Temperature Limits: -30°C to +105°C
  • Flame Retardent
See Specifications
Tri-Rated/ Bi-Rated Cables Specifications
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Nominal Cross Section Approx. AWG Max. diameter wires in conductor mm Nominal overall diameter mm Nominal weight kg/km Current rating (peak) Amps Voltage drop mV/A/m
0.5mm² 21 0.21 2.7 11 11 46
0.75mm² 19 0.21 2.85 15 14 31
1mm² 18 0.21 3 18 17 22
1.5mm² 16 0.26 3.3 23 21 15
2.5mm² 14 0.26 3.75 35 30 12
4mm² 12 0.31 4.35 48 41 9.1
6mm² 10 0.31 4.85 69 53 5.7
10mm² 8 0.41 6.3 117 75 3.8
16mm² 6 0.41 8.1 191 100 2.2
25mm² 4 0.41 9.4 281 136 1.4
35mm² 2 0.41 10.9 389 167 0.89
50mm² 1 0.41 13.1 560 204 0.64
70mm² 2/0 0.51 15.1 774 259 0.45
95mm² 3/0 0.51 16.1 991 321 0.32
120mm² 4/0 0.51 17.9 1231 374 0.24
150mm² 250MCM 0.51 20.2 1534 429 0.16
185mm² 350MCM 0.51 22.85 1878 496 0.13
240mm² 450MCM 0.51 24.4 2381 595 0.1
300mm2 450MCM 0.51 27.7 3655 675 0.1
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