philipcooper said:
.the original cables are buried so why cant these?
The original cables were solid, without a join, enclosed in unbroken insulation and sheathing.
Your cables are now damaged and have a non-permanent connection, so they're not the same.
If your cables are run in conduit or under capping, or if you want to chase them out again, you might be able to draw a replacement new, undamaged piece of cable down to the socket. That could be plastered over.
But I'm beginning to think you're pulling my leg, so I'll be off to bed now. Good night, and my best wishes to your uncle.