Two ungrounded conductors sharing a neutral are placed on the same phase. What is the concern?
- AThe breaker interrupting rating doubles
- Their neutral currents can add instead of cancel and overload the shared conductor
- CThe neutral current is always zero
- DThe equipment ground carries the difference
Why B is correct
A multiwire circuit depends on the phase relationship of its ungrounded conductors. If they are on the same phase, the shared neutral can carry the sum of the loads rather than only the imbalance.