7/26/17 Question: Increasing the size of an EGC

Poll created by dvigstol Employee on Jul 26, 2017

To comply with energy code voltage drop requirements, the ungrounded conductors of a 400-ampere feeder supply air-conditioning equipment are increased in size from 500 kcmil copper to 750 kcmil copper.  The wiring method is nonmetallic conduit, therefore a wire-type equipment grounding conductor is required. What is the minimum size copper equipment grounding conductor required for this feeder?

33 total votes
  • 3 AWG
    6
    Your vote
  • 1 AWG
    18
  • 2 AWG
    2
  • 250 kcmil
    7