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Where were these cables running and are you sure they were connected to the 2 double sockets? You would not have 2 seperate cables running between 2 sockets like that. You say you split one of the 2 and connected into a junction box. Are you saying that each of the 2 new sockets has its own...

Are you absolutely sure that you have connected the new switch in exactly the same way the old was connected? If you had then nothing would have changed. What connections ae there on the old switch? What you have is your bedroom swith connected in series with your sons. It's like having 2...

I've come across this a couple of times recemtly - both times it's been a (relatively) old shower and it was tripping the RCD. The manufacturer tells me it's quite common for the earth leakage to increase in showers with age up to the point where it will trip the RCD when the heater operates.

OK as far as it goes, but under part M there is no requirement to apply this retrospectively. So, unless it's a new build or such a drastic refurb that it can be considered as all new (a friend of mine had to take a house back to the brick, all plaster etc removed, and was advised by the LABC...

It depends on what is upstream of the isolator switch. As it was for an extractor fan, I'd expect it was powered from a lighting cct. If it is the answer is no, unless you create a fused spur that will protect the rest of the cct from becoming overloaded and tripping the breaker/blowing the...

You would not normally expect to see neutrals in a standard light switch, just lives and switched lives. It sounds like your switch operates more than just the one light. But, as was said above, copy how the old one was wired and it should work.

I would say it is notifiable as it is changing the fault protection characteristics of the cct concerned.

I use a Kewtech KT61 for everyday work and certification - it does trip RCD's but that's not too much of a problem, and I find it an execellent piece of kit (tho I do wish it had a combined probe and test button facility!). I still have my old Metrohm singles and a Metrel combined RCD and Loop...

Yes, it is OK but messy, as you say. 5Amps is too much, though. A 3 Amp fuse would be more than adequate (150W only draws 2/3 of an Amp!).

Is it actually your mcb that is tripping or is there an RCD in the system that is tripping?

Depends! A gen purpose RCD to BS4293 should trip in less than 200ms at 100% of the rated current (in your case 30mA). An RCD to BS EN 61008 in less than 300mS. If it is being used for supplementary protection (ie for sockets providing outdoor equipment) it shouyld open in less than 40ms at...

I've just been to a very similar problem today - the wiring entering the connector blocks above the fitting had suffered a lot of heat damage to the point that they were no longer providing adequate insulation between the live and neutral and had started to cause heat damage to the blocks...

Oops, only noted the bit about it going through the garage - got it in my head that it would go straight into the light :oops:

This is T+E cable - not suitable for your needs. http://www.tlc-direct.co.uk/Products/CA1G.html These are 3 core flexes, these are suitable for your needs. http://www.tlc-direct.co.uk/Main_Index/Cable_Index/Flex_White_1/index.html Make sure the plug is fused in accordance with the flex you use.

If you are going to heat the whole flat this way, you had best have very deep pockets as it will cost a fortune to run! Electric underfloor heating is OK for making the tiles in a bathroom more cosy to walk on, but not to heat the rooms. You would be far better off installing a wet system...

What sort of consumer unit do you have? What existing circuits and where did this spare 6mm cable come from?

Which is which?

Acc to 521-01-04 you can use it anywhere as long as the regs are complied with.

1 is perfectly legal. 2 may be buit may not be depending on whether the wardrobe is fixed permanently into the fabric of the building. 3 is legal just a pain. They should bite the bullet and do it properly, i.e. new switch cable, rechased walls and new switch, the 3 above are, to be...

For ref methods 1 and 3 that will be fine.