On a multifamily project at final inspection, a portable generator inlet can energize utility conductors because no transfer mechanism is installed; what is required?
- ARemoval of the neutral
- BA warning sign only
- Isolating transfer equipment
- DA larger extension cord
Why C is correct
Source isolation prevents dangerous backfeed and unintended paralleling; instructions alone are not a physical safeguard. The best answer is therefore “Approved transfer equipment or interlocking that prevents simultaneous source connection.” The other choices either address a different system, rely on an unsafe shortcut, or make a conclusion not supported by the stated facts.