A little bit of additional cutting was required to get all the conduit to fit, but since I now had the angle grinder it was very easy and quick to do, so no more drilling through the brick and then chiselling the brick out, resulting in lots of small chards of brick usually hitting me in the face :).
Attaching the p-clips to the wall was relatively straightforward, apart from the one or two bricks that seemed to be made of a substance harder than diamond, as I think I have mentioned before, only for those two bricks did it take some time to drill a hole deep enough to get the rawlplug inserted into the wall and then screw the p-clip in place.
I did have help in so far as I've invested in a drill bit sharpener which helped maintain the drill bit in a sharp enough state to get through the brick like it was butter :)
If you really want to see the light switch back box fixed in place please click here.
At the time the picture was taken the power was switched off via the circuit breaker so the exposed live wire was not in fact live at all, it now has the switch cover fixed in place and wired up.
This was particularly easy to complete, because I had cut out the chase with the angle grinder, it was pretty even, there was the odd deep section where a brick had fractured, but in the main it was all fairly level and in most cases the bricks were pretty easy to drill into, there was of course the one brick that was made of an extremely hard substance (think I may have mentioned this before :)).
In this case I sharpened the drill bit before starting, but after a couple of minutes noticed it didn't seem to be going any deeper, thinking maybe the bit was loose in the chuck, I stopped the drilling and removed the drill bit from the hole. only to find it had melted.
Just as well I had a spare that was exactly the same size so I was able to continue. Once all p-clips were attached the conduit was well secured to the wall.
For those that are interested, an image of the switch back box attached to the wall can be found here.
Thinking I was done for the day, it sprang to mind that I hadn't addressed the switch for the storage heater (we have no central heating), so I quickly isolated the supply, meaning the fridge was also switched off, time was now of the essence. Fortunately getting the switch and cables off the wall was very quick, I also removed the heater (not shown), quickly cut the appropriate chase and larger section for the socket out of the wall, managed to chisel out the excess brick and had fitted the switch and conduit all within about an hour and a half.
The power was of course switched back on, otherwise we'd have very warm wine in the fridge, but the switch is off and the cables have insulation tape around the bare ends, and as I've said before I am the only person who goes in the room.
