08/09/2017: Grounding and Bonding

Poll created by dvigstol Employee on Aug 9, 2017

Which of the following systems shall not be required to be grounded?

12 total votes
  • A 120/240-Volt, single phase residential service supplying both 120V and 240V loads
  • A 120/240-Volt, three phase, delta system supplying 120V, general purpose receptacles in an office building
  • A 48-Volt, single phase, control transformer fed from a 480V supply
    Your vote
  • A 480Y/277-Volt, three phase, WYE transformer feeding only three phase motor loads