TT installations Testing

[Polmenna-Martin]

Hi all, Returning to the electrical fray in order to reduce costs from property rentals / redevelopments.
One of the properties I have and will require annual test / inspection is a TT system. When testing the installation would I have to test the spike separately or would a good Ze / Zs reading suffice?
Wanted to know so I could budget for what testers required.
Thanks

[Knipex]

In my opinion a loop impedance tester will do.

An electrode resistance tester allows you to test the adequacy of an earyth rod during dead tests, which is what you want for new installations.
In the case of periodic inspections you are testing an installation that is already live.
Regards

[Jimbo]

You will get your Ze from the spike (method 2) you cannot get a Ze from anywhere else, BS 7671 says 200ohms or less stable however if your a member of a scheme this value may alter. Stable is the important word. Regards Jimbo

[electricalvillage]

The Fluke 1653, is an installation tester and will do your electrode test with the spike kit. A useful all round tester

[ringworm29]

spot on jimbo, the only place you can get the ze from, is the spike.

i met one of those idiots yesterday and i did not stand a chance.

[nicespark235]

Although 200ohms is acceptable, it could become unstable so its better to try and achieve around 100.