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Did a house rewire, all rooms fitted with Enlite Aurora LED downlights and Varilight V-Pro dimmers, no problems at all, however, the wall lights Had Enlite LED GU10's, and they buzzed like hell! Changed for Philips LED GU10 and they were silent, also the advantage that when dimmed, the...

You could try using a plastic vernier gauge to measure the diameter of the conductor, bearing in mind that the 2.5 and 1.5 etc., refers to the cross sectional area not the diameter of the conductor.

Thanks guys for the all the advice, I understand about the mutual capacitance of the conductors in the cable, and after a lifetime in electronics working with high voltage capacitors treat any potentially charged device with the utmost caution. I have in fact shorted together the conductors...

I've tested at 500 and 1000 volts, the accuracy of the tester decreases  with the higher resistance  readings, they only quote accuracy at 500V up to 499Mohms, which is plus or minus 6%, and 999Mohms at 1000V which is also plus or minus 6% , not sure what the accuracy would be at the higher...

Thank you Tony S for those kind words, I've attached the spec of the KT63's insulation test functions, which would indicate that it reads to 1999Mohms or 2Gigs

Hi Guys,  thank's so much for the replies, this really is a friendly and helpful forum.  Sorry,  Looking at my posts I see I've left out a zero on some of the  the readings.  initial post should have read 1500 not 150 M ohms, and 2000 not 200Mohms, sorry about that stupid error!!!. The outside...

Wow, M107, that's pretty bad about the Screwfix cable, though I think there's is Prysmian, which I think used to be Pirelli, so it should be OK, certainly worth doing an end to end resistance test on every roll, ( which I did, but not the IR ) saves a lot of possible hassle later. I find IR...

Thanks folks for the replies, I was wondering too, if I had some duff cable, shouldn't be as it' was new dated Prysmian, 1.5mm, On the principle of  "never assume anything", wish I'd thought to do an IR test on that new complete cable  roll before using it. ( having once re-plumbed a bathroom...

I was doing an insulation resistance test today on a newly installed Lighting circuit, (1.5mm 6242y ,hall/landing, and a couple of outside lights)  5 downlights on the hall landing and stairs, and two outside lights, I've used wagoboxes for the interconnections, as the downlights have removable...

Hello everybody, first post to say Hi. The name's Pete.. Always had a passion for all things electrical and electronic/ham radio, spent my working life as a Technician then for 30 years as a Lecturer. Re-wired a few house "back in the day, long before Part P, and just embarking on a full...

Thanks Dave, that sounds like a much better solution than running extra wires down the with drops, I know the wago boxes grip the T&E so they won't pull out, is it ok to have them just free in the ceiling, not screwed to the joist, ( I won't be doing the inspection as it's through Building...

Oops, sorry, should have said the electronic switches don"t require a neutral, not earth!

Hi Dave, thanks, yes, that was the plan, to loop from one to the next, but with no accessible line in line out and switch drop connections on a ceiling rose, didn't really fancy a junction box in the ceiling, unless it could perhaps be got at by removing the first light, though would prefer to...

Hi Folks, First post on the forum so a big hello to all. Couple of questions, Doing a house rewire where all the lights will be LED downlighters, so ceiling roses are not an option, so cables will be brought to the wall switches to have accessible interconnections instead. Not too happy about...