A feeder installation consists of 208Y/120-volt, 3-phase, 4-wire electrical system with a balanced load of fluorescent lighting. Each phase conductor has a 340 ampere load. The MINIMUM permitted ampacity of the neutral conductor for this feeder is ________. 238 amperes 275 amperes 340 amperes 680 amperes.

A feeder installation consists of 208Y/120-volt, 3-phase, 4-wire electrical system with a balanced load of fluorescent lighting. Each phase conductor has a 340 ampere load. The MINIMUM permitted ampacity of the neutral conductor for this feeder is ________. 238 amperes 275 amperes 340 amperes 680 amperes.

EBK ELECTRICAL WIRING RESIDENTIAL

19th Edition

ISBN:9781337516549

Author:Simmons

Publisher:Simmons

Chapter24: Gas And Oil Central Heating Systems

Section: Chapter Questions

Problem 8R: If you use 600-volt rated conductors for Class 2 wiring, does the Code permit pulling these...

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