A separately derived ____ with 60 volts on each of two ungrounded conductors to a grounded neutral conductor can be used to reduce objectionable noise in sensitive electronic equipment locations.
A. 110-volt, single-phase, 3-wire system
B. 115-volt, single-phase, 3-wire system
C. 120-volt, single-phase, 3-wire system
D. 125-volt, single-phase, 3-wire system
Answer: D
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