Copper equipment grounding conductors are no longer required for agricultural buildings, marinas and boatyards. Article 547 Agricultural Buildings 547.5 Wiring Methods (F) Separate Equipment Grounding Conductor. An equipment grounding conductor for circuits in agricultural buildings must be insulated or covered when installed underground (Fig. 33). Analysis: After studying the corrosive effects of the various items found in agricultural buildings (methane gas, ammonia, carbon dioxide, ...

Website Registration Required to Access this Content

Only registered users have access to Silver content. 

Registration on EC&M allows you exclusive access to high value content centered around proprietary research, expert NEC analysis and in-depth technical procedures.

Already registered? here.