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Well done Dippy. I got a letter from the LABC saying that I'm competent. Reading it again I realised that it said incompetent - you sure that is not the same with you?

Might be worth checking to see if he is a genuine NICEIC contratcor....................

Perhaps the socket is well earthed but you are standing on a live floor?

Sorry :lol:

C J C, Ignore the people on here - they are just trying to advise you to do the job correctly. Apply for and do the courses 2330, 2381 & 2391 (or their new equivalents) - if necessary again. When you have done those you will not have to deal with the people here. Until then, shove off.

Steve, How do you know that a fault/short hasn't made both phase and neutral live wrt to earth? There is one very reliable item that I always carry to eliminate this possibility - a neon screwdriver. Don't knock it too much - it does have its uses and it is safer that a DIY enthusiast use...

BAS, How do check to make sure there isn't a fault on both live and neutral which is causing these both to be live wrt earth? I know what I carry at all times and will use before and after the tester.

Thanks 3036 - a case of not reading correctly.

I suspect this might be a wind up. However, if I have read correctly, you have wired an upgraded shower in 1.5mm? If that is the case then I suggest that you obtain some jacket spuds ready to throw on the house when it goes up in flames.

You should not contemplate changing the MCB for a higher rating unless the cable size is adequate (which is why I was asking the OP earlier)

He is recommending that in anticipation of the new, 17th edition BS7671 - therefore probably a good move.

What size cable is being used?

Have you got anything else running from this MCB? (EG: heated towell radiator)

(a) Previous owner has upgraded the shower but not the wiring, MCB and fuse that supply it? (b) You have upgarded the shower but haven't upgraded the wiring,MCB and fuse that supply it? Therefore looking for advice on what cable size should be and hoping that you will get away with it...

BAS, I do believe you are being 'lightist' ?

A large invoice.

"Hypothetical situation - an average punter opens a plastic lamp bayonet fitting - they want to check to see if it is live. The average householder will not have a contactless, approved voltage indicator but may well have a multimeter or neon. The occupier thinks that he has isolated the supply...

Hypothetical situation - an average punter opens a plastic lamp bayonet fitting - they want to check to see if it is live. The average householder will not have a contactless, approved voltage indicator but may well have a multimeter or neon. The occupier thinks that he has isolated the supply...

No reply Master Abacus? Term 'Line' is common parlance. I didn't use the term live as both phase/line and neutral conductors are considered to be live conductors (BS 7671). The first suggestion was real and with good intentions; the second was on account of his/her apparent ability and well...

Given your previous posts and without meaning to insult you might be best starting by buying a 6V battery, some bell wire and 6V MES bulb and lampholder. Connect these to make the lamp work. For the purposes of this (simplified) illustration you can consider the positive connection between...