Because of the main bonding jumper connection between the grounded, common-return, neutral conductor and the grounding-electrode/equipment-grounding system of a 3-phase AC, 4-wire, 208Y/120-volt building or other-structure electrical-power distribution system, _________ volts can be measured between any ungrounded bus or any ungrounded circuit conductor and the metal raceway or other metal enclosure housing the circuit conductors, or between any ungrounded bus or any ungrounded circuit conductor an exposed building metal, metal piping systems, or metal air-handling ductwork.
A) any of the answers
B) 120
C) 208
D) 480
Show Answer
Answer:B
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