Recently I was told all raceways must include ground conductors, even metallic raceways.
My understanding of the NEC article 250.118 allows the metal conduit serve as an expectable ground path, and no additional ground conductor is needed.
Please let me know if this is correct, or if this is a code change when did it change?
I am adding to an existing 120 volt general lighting circuit, not in a special occupancy. The existing raceway is EMT and I am also using EMT.
Does the EMT serve as the equipment ground, or must a separate ground conductor be installed with the branch circuit conductors.
My understanding of the NEC article 250.118 allows the metal conduit serve as an expectable ground path, and no additional ground conductor is needed.
Please let me know if this is correct, or if this is a code change when did it change?
I am adding to an existing 120 volt general lighting circuit, not in a special occupancy. The existing raceway is EMT and I am also using EMT.
Does the EMT serve as the equipment ground, or must a separate ground conductor be installed with the branch circuit conductors.