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sub panel to storage building/shop

Posted By: Reel-Break

sub panel to storage building/shop - 04/09/02 03:30 PM

In wiring a storage building from home panel I`m running 100 amp service to it 4 wire use now I`m not sure do I drive a ground rod or 2 ground rods or does the 4th egc wire take care of it. Thanks in advance
Posted By: George Corron

Re: sub panel to storage building/shop - 04/09/02 08:44 PM

Reel,
99 code 250-32. If your building has more than one ckt (and I'm pretty sure we can assume it does) you have to have a grounding electrode (rod, water pipe, effectively grounded bldg steel, etc.) connected to your green, bare, whatever grounding conductor.

Using 4 conductors, your neutral and ground are kept separate at the out-building service, but the ground must have an electrode.
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