Physics · Electrical Wiring Standards
According to the Bureau of Indian Standards (BIS) for a three-phase AC system, the respective colors of the three phases and the neutral wire are ______.
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1Red, Brown, Blue and Black
- 2Red, Blue, Black and Green
- 3Red, Yellow, Blue and Black✓
- 4Red, Yellow, Black and Green
Correct answer
Red, Yellow, Blue and Black
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