Correct! (a) Yes, but that would be considered a supplemental ground. An equipment grounding conductor
must be run to each light standard to carry any fault current back to the source. Section 250-2(d) tells us "The earth shall not be used as the sole equipment grounding conductor or fault current path". Section 250-54 permits supplemental grounding electrodes but tells us again "the earth shall not be used as the sole equipment grounding conductor." An equipment grounding conductor must be run with the circuit conductors to each light standard.

Hit "Back" on your browser to return to E.T.E.'s Electrical Code Quiz!