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Old 03-18-2010, 04:08 PM   #1
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Main grounding electrode wire to panel


Hi guys,
I'm finishing up installing my new panel and I have a question about the ground wires. I have a main ground wire from the water pipe, another from the new ground plate I installed as well as one from the gas line. Can these all be tied together with split bolts along the way or do they all have to terminate in the panel?
As for inside the panel, the Square-D one I have has one lug connection in the top section screwed to the back of the panel, and it also has a connection right beside the main service neutral. The note on the panel says something about "service ground connection if required" or something similar (I don't have it on hand). Can the ground from the water pipe connect to this, since the neutral and grounds are intermixed anyway? I can take a pic later if need be.
Thanks.

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Old 03-18-2010, 04:36 PM   #2
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Main grounding electrode wire to panel


My understanding is that only one main ground is required. The more the merrier but as long as the ground is "grounded" you should be okay.

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Old 03-18-2010, 05:11 PM   #3
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Main grounding electrode wire to panel


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Originally Posted by Mark Harvey View Post
My understanding is that only one main ground is required. The more the merrier but as long as the ground is "grounded" you should be okay.
Our local inspector (and code now I think) require any upgraded service to have a supplemental ground (rod, plate, etc) as well as to bond the gas line as well. I've installed a new panel and meter and am re-routing the original ground wire as well as adding the other 2. I'm just curious on the best way attach them all.
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Old 03-18-2010, 06:08 PM   #4
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Main grounding electrode wire to panel


I would run a ground wire direct from the panel to the ground plate (or ground rod) and use splice bolts to tie on the gas pipe and the water pipe connecting ground wires.
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Old 03-18-2010, 06:18 PM   #5
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Main grounding electrode wire to panel


and just to throw confusion into the picture, the OP is in Canada. Personally, I have no idea if the CEC require the same methods and the NEC.
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