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#201010 - 05/02/11 05:40 PM Equipotential plane
George Little Offline
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Registered: 01/18/04
Posts: 1492
Loc: Michigan USA
What is being used for the equipotential plane mentioned in 682.3?
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George Little

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2014 / 2011 NEC & Related Books and Study Guides
#201012 - 05/02/11 05:52 PM Re: Equipotential plane [Re: George Little]
HotLine1 Offline

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Registered: 04/03/02
Posts: 6805
Loc: 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.
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John

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