Interesting thread, I certainly recall being taught 'how to wire a plug' while at secondary school, in around 1997 or 1998.
If I recall correctly, most things my parents bought in the early to mid 90's didn't have plugs on them.
I wouldn't over complicate this, it can be fixed in an hour or two for a few pounds;
1. Shut off the power (sorry, but it has to be mentioned)
2. Any fitting (socket, switch, light fitting etc) that has an earth terminal on it, take all the earth wires to it.
3. If the back box also has an...
100% agree. They are for the benefit of the supplier, certainly not the customer.
But they ARE the reason the standing charges are so high for everyone else!
It looks as though it may have in the past been too near to/on top of a hot (probably halagon) downlighter, and been cooked by the heat? That's my best guess.
Cure is to cut it back to sound cable, and make proper joints in a suitable box.
I'd at least look at getting the meter tails updated a bit, those look like the old VIR or maybe fabric type to me. Probably wants an electrician to take a look at it all.
If it's a single switch (not one at the top of the stairs, one at the bottom etc?), then just put one wire from the existing switchplate into the COM, and the other wire from the existing switchplate into the NO. Leave the NC terminal unused.
Any separate connector blocks containing multiple...
The two Wylex boards are numbers 1 and 2, the "Volex" labelled box, nearest the camera, at the top, will be the third one. Open the front flap and there will be MCBs/RCDs etc revealed. Three it is, at least as far as I can see. Sorry!
HTH
It's just a shame that we have a government who's stated aim is to increase the wealth of the richest 1% of the country regardless of the cost to the other 99% of the country... This is the overall aim of conservatives. It is what they desire, believe to be morally right, and seek to bring...
Don't forget, if a light downstream of the one you are working on has its switch turned on, the neutral coming back from it into the fitting you are working on will show as being live, if the live wire is connected.
If it all works when put back together I wouldn't be too worried about it.
Your meter has (somehow) forgotten that it should be switching on the off-peak power during the off-peak hours, which will charge the storage heaters. Sounds like a job for the meter-fitters, to put in a new off-peak meter.
Mention to them that you won't be paying them until they sort it out -...
Any local business that 'does electronics' probably has a lab tech who would do a small job like this gladly in exchange for a case of beer - if you're in south Devon, I would :)