Connecting Tanks and Pump bases to a ground ring? I have noticed some plants connecting their above ground steel tanks and pump bases to a ground ring. Why?
The only purpose I see would to bring the tank to earth potential. The motor for the pump requires an EGC from the service for ground fault protection. I scanned NEC Articles 250, 501, & 515 and cannot find any reason or requiremnent why this should be done and is it good practice.
The only purpose I see would to bring the tank to earth potential. The motor for the pump requires an EGC from the service for ground fault protection. I scanned NEC Articles 250, 501, & 515 and cannot find any reason or requiremnent why this should be done and is it good practice.