What is mean by R, Y, B, Bk in wiring???



What is mean by R, Y, B, Bk in wiring???..

Answer / mayank sharma

In wiring R, Y, B, Indicate Phase, & Bk indicates Neutral.
this is the standard coding of wiring used in three phase AC
Supply.

R, Y, B (Red,Yellow,Blue)- All indicates Phase wire
Bk (Black)- For Neutral wire

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