Ground clamp

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Old 05-06-06, 07:13 PM
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Question Ground clamp

When they wired our house, they put a ground clamp on the copper water pipe that sticks out of the wall for the outside faucet. I was going to tighten this clamp because it was a little loose, but I noticed the junction has some corrosion. The pipe is copper and the clamp is a galvanized one like they put on the ground rod. Should I use a copper ground strap on the copper pipe to avoid the problem with dissimilar metals? Thanks
 
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Old 05-07-06, 04:44 AM
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I assume this is for a ground for a branch circuit, and not for your entire system.

Where do you live (update your profile so we have this information).

In Canada it is legal to ground a receptacle, device or appliance by connecting the ground to a cold water pipe, as long as the water pipes are properly used a a ground for the entire electrical system.

In the US this used to be legal, but no longer is.

Depending on where you live, you will have to run a proper ground.
 
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Old 05-07-06, 08:56 AM
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I live in Spring TX. We built this house in 1998.

This is the wire that bonds the water pipes to the ground buss in the main breaker box a few feet away. A separate wire runs from the ground bus to a ground rod.
 
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