On 11/12/16 19:07, Larry wrote:


Just putting in a fused spur off the ring main - only 6 inches away from
existing double socket
Carefully removed plaster next to double socket - all clear.
Marked the position of new backbox for fused switch.
Drilled a honeycomb of holes where back box to go.
When I started chipping plaster out - I found that a diagonal 6mm cable for the
cooker ran straight through where the box was to go.
I had actually drilled through the T&E - a perfect hole straight through - it
had not tripped RCD or fuse.

Question: The cooker was recently wired in as part of a kitchen upgrade : are
diagonal runs permitted under the relevant regs?


No.

Firstly, did the electrician run that particular cable as part of the
upgrade.

Second - is the cable in a 150mm zone from the vertical corner of the
wall or in any other way contained within a permitted zone created by
the horizontal/vertical "shadows" from any other accessory?

Clearly the bit of cable you found is within the zone created by the socket.

But does it look like it then leaves that zone? I guess so as you said
"diagonal" but I'd like to be sure. Picture would help.


If it is a bad install, find the electrician and report him to his
professional body. Tell the body you want them to come and look (so
don't cover it up). Assuming this is a breach of regs, I've got no time
for dealing direct and asking for it to be put right - this is shoddy,
irregular and needs reporting. Who knows what else he's short cutting?