Brian wrote:

- In another bedroom, I had to chisel out the ring main cable from a
concrete wall. This involved accidentally baring the cable in parts so I
decided to cut it off from the highest point I could and apply new cable. To
join old + new cable, I used 30 amp terminal blocks but over tightened some
so the metal cracked. The cables seemed to be fixed tight so I didn't worry.
Should I have?

If you are going to plaster over the cable again then you need to either
solder or crimp the join and not use screw terminals. Sheath the
individual wires and the overall cable in heatshrink as well.

--
Cheers,

John.

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