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rcbo's are going to be they way forward, IMO too :oops: The ESC, THE IET, the NICEIC etc....are steering it this way IMO And it's a good solution, if you're not paying the bill for the materials!

might be worth getting a PIR done if you haven't, could be the wiring not the RCD

we only offer a periodic unless we have been involved in the "design, erection and verification" of the job :wink: AIUI, there is talk of banning this practise altogether, although it is just talk. At then end of the day, if the place burns down or god forbid somebody gets a belt and is...

on an MCB? I doubt many domestic sparks would have the gear to do that test. I've only ever seen it done in hager's MCCB factory in france!

carefully is the answer. Cut out the box size in the laths with a plasterboard saw. use a 16mm steel box. You'll probably need a good bit of bonding coat to stick the box in situ, or gripfill or similar.

unique fit sockets marked computer use only would be a good solution, if it's the computers bringing the IR down 8)

filtered sockets give readings of around .3 meg when connected :wink:

we find places with VIR run in un earthed steel conduit still, and it makes me shudder every time. But invariably, the IR is acceptable as said. Minimum IR is changing to 0.5M per circuit though isn't it, which is only a good thing IMO.

Just as a note, if you're about to be assesed, and you're not familiar with the testing procedure....you need to be quickly. They'll fail you straight away if you are unable to prove you are able to prove competance in the verification of the work you have carried out. It's not enough that...

inaccessable joints....big no no :?

they shouldn't be buried under concrete.... You must be able to verify the connection to the stake, so if they're going in a slab you need to use a pit to retain access. If you can verify the connection to the stake, it's OK AIUI.

could be TT :shock: If it is and there is no RCD at all, tell them to get one!

If you have spare ways, surely it's simpler to use an RCBO just for the outside lights?

:lol: cheers

with a nail, rubber wellies and rubber gloves :lol:

We always feed outbuildings from the non RCD side of the board and fit an RCD in the outbuilding. It's our preference, in that if there is leakage in the garage, you don't loose the whole house. Re the submain, bearing in mind that the submain is classed as fixed equipment it only needs a...

were they plugged into a filtered socket or extension lead? We always do an initial all neutral to earth reading on issues like this, gives a good idea of the state of the installation with the appliances connected.

nasty stuff. I have known it to cause insulation resistance issues, although I personally wouldn't of thought it could be conductive, but it's what we put it down to after much head scratching! Always wash it off before eating your sarnies! has been known to cause skin irritation AIUI.

Hi Chaps, New here and I thought i'd chip in on this one. There is a good "best practise" guide issued by the ESC on this issue best practise guide no cpc in lighting circuits A bit about me, i'm an electrical contractor, family business established in 1985. My father started...