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?

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.