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Three Phase Motor Power Cable Voltage Rating

Anirood Hasseea

Power Supply - 3 Phase 400V

As per BS 7671, is it acceptable to use 4 cores (Br Bl Gy & Yellow) 300/500V cable be used for 3-phase motors?

What is the recommended voltage rating of power cables for three-phase motors?

Thanking you in advance.

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Parents

  • Voltage ratings for cables are RMS voltages, not peak. 300/500 volt cable is intended for use on systems with up to 300 volts to earth or 500 volts between conductors.

Reply

  • Voltage ratings for cables are RMS voltages, not peak. 300/500 volt cable is intended for use on systems with up to 300 volts to earth or 500 volts between conductors.

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