On Mon, 06 Jul 2009 11:15:18 +0100, GMC had this to
say:

Andy Dingley wrote:
On 6 July, 10:14, GMC wrote:

The socket does still trip if i leave it hanging on the wires.

What if you remove it (carefully!) and test it with no socket
connected at all?

What if you do this without the socket faceplate, but with the earth
bonded to the back box?

I will try what you suggest.


If you've damaged insulation and you've physically moved the cable
ends, then there's a possibility you've now got a short onto the back
box where the cable enters.

But it trips with the faceplate hanging loose and no earth connection
back to the back box.

I will scrutinise the wires for nicks etc.

Is it actually the RCD that trips, or the MCB? An MCB trips to
over-current, and an RCD trips to a L/N current imbalance.

--
Frank Erskine