"Christian McArdle" wrote in message
et...
so would not simulate live to the ground of the garage ????
is there another type of test you can do to simulate this.

What do you mean by ground of the garage?

I mean the actual floor of the garage that you would be standing on.


Is there any structural metalwork, or metal services, such as water
supplies? If so, they should be main bonded back to the house, which will
be
very difficult being 40m away.

No services or exposed metalwork



Your garage might be better rewired as a TT system. Isolate the earth at
the
garage end and install an earth rod. Keep the RCD and ensure the incoming
cable goes straight in and the consumer unit is a plastic insulating type,
not metalclad. Check the earth loop impedence is nice and low.

What is the point of having an earth rod if you have a fault and the current
flows through you to earth, surley the earth rod does not do anything ?? or
is it there just for the metalwork in the garage ie:- metal sockets light
switches and strip lights etc:

What is the point of doing an earth loop test if there is an RCD protecting
the garage??


Christian.

P.S. you can test the RCD against any earth by getting a 13A socket with
flying leads. Connect the live to the circuit you wish to test. Connect
the
earth to the earthing point you wish to test. Plug your RCD tester into
the
socket. Perform test.

so I could test from a live wire in the fuse box to the earth rod for
example and get a reading??

Rich