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If you have a 240V hookup with a red black and white wire can you drive a copper rod into the ground and hook up the green wire to that?


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Wiki User
2015-07-15 19:50:49
2015-07-15 19:50:49

You could, but if you're going to do that then why not ground the entire service entrance panel? ...and you need to drive (if I remember correctly)...about 7 feet into the ground to be effective.


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copperclad is steel with copper over it steel will drive into the ground and push small rocks out of its path copper doesnt rust but is soft copper will last far longer copper clad takes the good parts of both you can bury a copper plate for lower impedance

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Unless otherwise specified you need a 5/8th inch by 8 foot copper clad rod. A great trick is to drive it in at a 45 degree angle and bend it up as you go so it ends up straight after it drive in all the way. This keeps you from hitting hard pan and keeps you from having to get on a ladder to drive the rid which can be kinda dangerous. Leave about 4 inches out of the ground for you ground clamp. For a 200 amp service use #4 armored ground. For 125 amp or 100 amp you can use #6 armored ground wire and an armored ground clamp. The NEC allows that for ANY connection to ground rod, #6 solid copper is the largest conductor required. The ground rod is SUPPLEMENTAL, and only in rare circumstances is the ground rod your primary ground. The sizes given above are for your primary grounding connection, such as a metal water line.

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Both - you fly it in the air, but you drive it on the ground.

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