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cheers mate

yeah I took all box lids off today and pulled out and separated a lot of the terminal blocks to no avail I guess im gonna have to disconnect everything to single it out. Would be easy if I had all the time in the world, but during the the building is now starting to flood with all the staff...

Thanks Binky. I spent a lot of time making sure the galv was deburred fully, but accidents can always happen I guess. Since the fault is common to all switches I may as well run a new line from the board. I cant believe I'm even thinking about it at this time of night and especially when...

Definitely linked out the dimmers at £25 a pop! L-N is ok. So is N-E (with the neutral bridge removed in the board)

Well, I think its correct because the neutral on the board remains connected, and the main cut outs are on the floor below, prob around 20 or 30m away. So if the earth connects to neutral there, the 0.25 sounds about right

Thanks for the replies There's 27 40W lamps on this circuit, connected to 6 independent MK Logic dimmers The breaker is a B10 and it IS tripping. The board is a Schneider TPN - the neutral is not switched. I can't currently get into the plant room in the basement to verify the supply. It's a...

So I've just completed (well apart from this issue) an installation for a coffee shop/cafe. It's all tubed out in galv conduit, as the client wanted the 'industrial' look.  The circuit thats being problematic is the lighting. I have created pendants from thru boxes on the ceiling, which drop to...

Yes i've done all that - was just wondering how it differs from a radial circuit

Thanks guys

Can anyone enlighten me on how to work out Volt Drop on a ring circuit?

Anyone know if Megger are planning any local calibration in the Yorkshire area? Went to Elex at Harrogate yesterday and spoke to Megger who said that i'd lose my meter for up to 14 days if I sent it to them for calibration, but may be able to find them doing it at CEF or something.