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#201010 - 05/02/11 08:40 PM Equipotential plane  
George Little  Offline
Member
Joined: Jan 2004
Posts: 1,489
Michigan USA
What is being used for the equipotential plane mentioned in 682.3?


George Little

2017 / 2014 NEC & Related Books and Study Guides

#201012 - 05/02/11 08:52 PM Re: Equipotential plane [Re: George Little]  
HotLine1  Offline


Member
Joined: Apr 2002
Posts: 6,857
Brick, NJ USA
George:
The two (2) that I had (Retention basins, with aerator pumps & services); one used the rebar (12" +/- squares) within the slab, #8 solid Cu (including fence & jumper on gate). #2 used the 12" Cu mat under 3/4" blue gravel, #8 solid Cu (including guard rails)

Both were under '05 NEC at the time.



John


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