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Ground rod test #34786 02/23/04 02:56 PM
Joined: Jul 2002
Posts: 241
S
SJT Offline OP
Member
Is anyone familiar with the testing method to check that 25 ohms or less are at the ground rods. Here on L.I., we have a single ground rod as a supplement to the main water pipe. Has anyone used a clamp on style meter to check grounds? Are the 3,4 type terminal testers better?
Thanks

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Re: Ground rod test #34787 02/23/04 04:02 PM
Joined: Feb 2004
Posts: 2
J
Jim Phillips Offline
Junior Member
I have used the clamp on with pretty good success. You have to clamp on at the last ground to the ground rod. The meter I use is made by AMEC and it will read 0.7 ohms if you have not connected on the last lead. The 3, 4 terminal testers are good but if you are just seeing if you are below 25 ohms, the clamp on is easier.

Jim

Re: Ground rod test #34788 02/23/04 09:57 PM
Joined: Apr 2002
Posts: 2,527
B
Bjarney Offline
Moderator

Re: Ground rod test #34789 02/25/04 03:03 PM
Joined: Jul 2002
Posts: 241
S
SJT Offline OP
Member
Thank you for the pages on the Ground Test. It's an area that I would like to be more educated about. I appreciate both inputs.


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