We installed security lighting on a number of storage shed buildings. These are buildings consisting of individual storage areas (ex: 8 per building) The lighting circuit is taken from a main building underground and comes up at each building with the light fixture controlled by a photo cell. There is no wiring inside of the storage sheds except for one that has a receptacle. The local inspector wants two ground rods installed at each building. I cannot find any requirement for this in the code and I'm wondering if any of you out there can shed (no pun intended)a little light on this situation. I feel no ground rods would be required since there is only one circuit and none of the wiring is installed inside of the sheds.
Thanks in advance
Ron