Testing Earth Electrodes

jimmycomeruk · Jul 6, 2010

I am currently working for a satellite and tv installation firm. The company have asked me to install Earth Electrode's for their installations. I have an ECS Card and am classed as an Electrician as I have C&G 2330 Level 3 NVQ.

This would involve running a 6mm cpc cable from the connection cab to the soi. Both of which are external to the building.

There is no power source at the installation.

I would like to know which tests I would need to do on the Earth Electrode, which tester I will require and if I am authorized to pass of the earth path of the system without being NIC EIC registered.

This link..

http://support.fluke.com/find-sales/Download/Asset/2633834_6115_ENG_A_W.PDF

..has provided me with some information, but clarification from you guys would be much appreciated.

Thanks for all if any replies, Jimmy Comer.

ICE · Jul 6, 2010

All I would do is use an EET to test the resistance of the electrode and try and get the Ω as low as possible 1 Ω would be perfect but in reality you probably wont get anywhere near this, if your EET allows test the resistance of the soil before you sink your earth rod.

jimmycomeruk · Jul 6, 2010

I've decided to use this

Megger - Megger DET3TD

and therefore the three pole earth testing method.

Will the earth electrode resistence test be the only test I need to conduct as demonstrated here..

Earth electrode resistance testing