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Can it be double confirmed there is then NO regulatory requirement for the Isolator Switch. Its a new property - so some tweaking maybe need to be done, they are Humidistat fans, so can work independant of the light switch, good point that they maybe running too long. They can be adjusted, but...

I can see why having an Isolator is a good idea, and that is why it was most likely suggested, but in a rental property, if the tenant doesn't want the fan whirring away they can disable it, which sort of defeats the purpose. You can also get a fan isolator in a single grid module now Thats a...

New flat conversion. Nice quiet Humidistat Xpelair Fans in onsuite bathrooms, with no windows, so fans important to remove the steam and humidity. New tenants have disabled the fans by switching them off at the DP Isolator switch, I was told they were needed to comply with Regs. Are they a...

The freezer is on the kitchen circuit, so imagine you would notice that - but take your point if it was on a totally dedicated circuit and it tripped. residual current devices which can 'misbehave' might move the goalposts in the other direction - yes thats another way of looking at it. The...

The RCD is a MK 7860 63a unit, about 4 years old. The Switch is 10+ years old, but had little use. switches which have poor contacts and arc excessively when operated can sometimes cause RCDs to trip yes I suspect this could be part of the problem, do light switches not all work the same way...

I have a switched Emergency Bulkhead 500mm away from the CU, wired staight into the same MCB as the properties ground floor lighting circuit. A normal light switch sits across the Live. This light is not required to be an Emergency Light, it has been installed to provide light in the cupboard...

The issue seems to have vanished ... very odd.

so I would doubt that an installation wired to US standards would necessarily 'pass' an EICR. Shame I can't find the thread ... it made an interesting point, I must have my memory wires crossed.

Thanks for putting me straight on this point, instead of saying 'Obviously if it wasn't mandatory' I could also have said 'Obviously if it didn't need to comply with regulatory requirements of Part P or comply with BS7671' ... etc. but very very few people would attempt that - I remember a...

Yes thinking about it, identifying what is live and what is neutral is fundamental, this article goes back to the 1960's: https://guides4homeowners.co.uk/electrical/the-history-of-electrical-wire-colours-in-the-uk/ 'Mandatory' - I'm sure you put me right on this before and a long post evolved...

Thanks for the replies. Back when cables were coloured red and black, should the spark then have put sleeving on or have made identifiable the black as being live, ie was that mandatory back then, and if that was the case back then - and its not present today, does that mean there is a...

A domestic lighting loop circuit - with old Red and Black 1.5 T&E cabling, put in in 2003/4. I know these days Regs require brown sleeving on the blue cable (switched Live) at the switch and in the rose, or wherever neutral colour cables that carry a live terminate - and I am in the process of...

Sorry I shoud have said that all lights in the property suffer with this, including the outbuildings lights. It is not an 'on/off', but a change in intensity. I have noticed that it comes and goes, I have thought about the main incoming supply not being smooth, guess I could measure the...

Hello. Prior to an EICR - all the accessories were checked for their tightness of cable clamp screws, and their general condition, signs of arcing etc., Nothing of note was found. The property is a 3 storey Semi, TNS, 17th Edition CU, split with two RCDs. Sockets on rings, lighting on loops -...

Thanks, some Googling on Capacative Coupling ... finds him again, sure I'd seen something about this a while before: https://www.davidsavery.com/index.php/free-advice/117-why-do-my-led-bulbs-glow-when-off?responsivizer_template=responsivizer Some bed time viewing ... £5.76 for a 'corrective...

Thanks for those explanations, very helpful. Could 'capacitive coupling' be described as a 'leak' of current, between the Live and Earth - at very high voltages you get an arc across a gap, and a 2Kw heater plugged into an uncoiled extension lead will heat up - in extreme cases melt the casing...

I had a feeling the unit would fail, and fail it did, and it was the all in one type, very wasteful. What is this 'capacitive coupling' - is not a contact in a switch either on (240v) or not (0v) Are LED lights - if tickled with a very low current from the capacitive coupling, prone to...

Thanks for this info, very helpful. This glow would not have occurred with old incandescents, as the current draw required was higher to make the element glow - where as LED's will illuminate (glow) on a far lower current. I have previously had a leak in the outbuilding - which has been fixed...

Hi, I recently had to replace an LED spot light, just a cheapo one from SF (not LAP though !): https://www.screwfix.com/p/luceco-slimline-led-floodlight-black-10w-1050lm/714kj I have an outbuilding, SWA runs from a House CU for approx 10-15 mts, terminating in a wiska box in the outbuilding...

the requirements for a soldered electrical joint is that it should be 'mechanically sound' even before it is soldered thats the nub of the matter, thanks for answering.