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Such a cable does indeed exist, though it is unusual to be used in house hold wiring. There is nothing wrong with having a blue wire for the nuetral Adam_151. Go and take a look inside the nearest plug top. bernithebiker, how can you adequately protect the cable if you don't even know what...

Would have been helpful if you could give reasoning to your answer instead of being more interested in throwing him more problems.

Whith all that 'knowledge' you think you would be able to answer his original post better than "me too" :roll: So how did you get on with all that volt drop sqongo? :lol: :wink:

Yes it is within the regs. You shouldn't be able to reach it from within the shower.

It almost sounds as if the light is connected incorrectly and when you are switching it off the battery is trying to light the lamp (clutching at straws a bit here, but you never know) :lol: . Are you sure it's connected properly? Probably is, but it wouldn't hurt to check.

A 4 core and earth one, I'd imagine.

I thnk before you connect anything up, you should find out exactly what size of cables you have. You seem a bit unsure. It can sometimes be difficult to tell by looking.

You're still not acounting for your earthing. :wink:

If you split the cable into 2 fuses and one popped, the circuit would remain energised by 'diverting' through the other fuse. Unless that one popped too. Remember if you are using a 5mm/2 cable for your live, then your earth will need to be at least 3mm/2, where as you will only have a 1.5mm/2 one.

Sorry, the cpc is the earth. re the fuses. If you want a 40A fuse, it's just as easy to put in a 40A fuse surely. What your talking about with the 2 20A fuses will not 'add' up to 40A protection. Take my word for it, it just doesn't work like that. :wink:

Yes. That's right:roll:

I'm not saying volt drop isn't a legitimate issue, but I seriously doubt it will be in this case. Many circuits in large industrial building are over 50 metres to their first point with no volt drop issues. Indeed, I recently wired a circuit which was over 300 metres long for supply to...

I would call your spark to be honest mate. It is difficult to diagnose your problem with out being there with a meter in hand. :?

:lol: I don't doubt it.

You could in theory twist the cables together and get 5mm/2, it's not really the done thing but it's not 'incorrect'. You cannot then split the cables into 2 mcbs. It's either 1 cable or 2 cables, not both. You fail to mention where the cpc is in all this planning, which is a bit concerning. :wink:

Brown, black and grey are your 3 phase colours. You can use black OR grey for your neutral, as long as it is identified as such. I would say for your living room that 5 small downlighters with 40W lamps would be fine. It really is just down to personal preference though.

Also, electrical work only has to adhere to the regs/legislation at the time of installation. Which is, as I say, somewhat difficult to determine never mind prove.

That has always been the case. The legislation hasn't changed this. Nor has it changed the fact that surveyors generally couldn't tell their arse from their elbow when 'surveying' the electrical installation.

Also, the legislation does not apply in Scotland. Guess that makes us unsafe then? :roll:

Can you tell me how exactly they are going to determine if the work was carried out before or after January 1st 2005? :?: If you think all (in fact ANY) major contracting firms adhere strictly to ALL the rules, then you are very naive. Rules aren't the be all and end all. Safety IS! Rules...