How to select wire in House wiring || Wire selection in SQMM || How to calculate SQMM in House wire.
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- เผยแพร่เมื่อ 3 ต.ค. 2024
- Choose red, yellow and blue colour insulation for the three phases. Black coloured wire for neutral and green for earth wire. Generally, three-phase wires are in black, red and blue and neutral is in grey or white. And, the green wire is used for earthing.
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