Discuss Ground floor lighting trips out mcb in the UK Electrical Forum area at ElectriciansForums.net

Midwest, I have replied to your post with a link to the type of led they are. I don't know what you mean by how they are switched ( not on a dimmer if that's what you mean ) . Also I am trying to reply by quoting in responses but when I do I can't see the option of posting the reply so have to just reply at the end of the posts.


Thankyou to each and every one of you for your input.

My thinking, it’s a bit of a long shot, is if you have too many LED fittings control by one switch, the momentary high inrush current can trip an MCB. I think you’ve mentioned the mcb tripping when the lights are off?

Using nails as cable clips, is a bit unconventional, blow back to the past!

You should allow your installer a chance to rectify things. That’s what his Scheme will expect, before investigating anything, if they do at all. Building Control will not carry out any inspection, but might refer you to trading standards.

In the first instance, see what your installer suggests on rectifying theses faults.
 
]@anthonybragg the light fittings themselves aren't covered with insulation ( I guess you mean fire rated covers by that ) . The wiring is simply fed into connector blocks from ceilings and the led have a brown and blue wire only which have been connected to the block also.[/QUOTE]

What I was referring to was if the fitting/driver/transformer is covered with insulation it burns out this sometimes ends up causing a L-N short tripping the MCB. You say they aren't so hopefully that can be ruled out.
The electrician himself works for a company and was recommended by a colleague at work so I went with him purely on a recommendation.
Let's not be too hasty n blaming the electrician it may well not down to a workship issue.
 
Last edited by a moderator:
]@anthonybragg the light fittings themselves aren't covered with insulation ( I guess you mean fire rated covers by that ) . The wiring is simply fed into connector blocks from ceilings and the led have a brown and blue wire only which have been connected to the block also.

What I was referring to was if the fitting/driver/transformer is covered with insulation it burns out this sometimes ends up causing a L-N short tripping the MCB. You say they aren't so hopefully that can be ruled out.

Let's not be too hasty n blaming the electrician it may well not down to a workship issue.[/QUOTE]
Workship issue??
 
Workmanship, Some people on here are getting too pedantic on spelling, grammar and punctuation and are taking the enjoyment out of coming on the forum. Yes, I can take it from you, Pete, as I know your only jesting and we both know each other but others are not on here.
 
I hope my comments regarding apostrophes are not causing offence ;)
 
^^Whos with the NIC (NICEIC)? The installer or the guy that tested? If the installer then you should be able to claim under the NICEIC guarantee (platinum promise). The NICEIC also don’t allow 3rd party ‘signing off’ of work.
 
As we don't know the reason for the MCB tripping I would want the electrician (preferably with his mate with the test equipment) to come back urgently. Being it trips not instantaneously you may not know what is arcing away somewhere.
 
What I was referring to was if the fitting/driver/transformer is covered with insulation it burns out this sometimes ends up causing a L-N short tripping the MCB. You say they aren't so hopefully that can be ruled out.

Let's not be too hasty n blaming the electrician it may well not down to a workship issue.
Workship issue??[/QUOTE]
Didn't the OP say all of the lights were working? If the driver was fubar I doubt the lamp would work.
 
Workmanship, Some people on here are getting too pedantic on spelling, grammar and punctuation and are taking the enjoyment out of coming on the forum. Yes, I can take it from you, Pete, as I know your only jesting and we both know each other but others are not on here.
this is a workship. :eek::D:eek::oops::p
upload_2018-12-30_16-8-48.jpeg
 
wrong pete. it should read your, not you're. :D:D:D
 
Little update, I got family member who knows a little on electrics to come give a view on it whilst I'm waiting and he has tried the following:

Moved the live wire from the breaker to the one next to it which was a 16amp breaker and lights stayed on for an hour or so without tripping so didn't want to stay there waiting as it could have been hours before it tripped, anyway then moved wire back to its original breaker and it tripped after 10 mins.

Next thing he did was swop upstairs 6amp breaker to downstairs and see if upstairs trips to eliminate faulty breaker. The lights this time stayed on for 1hr 40 mins before I decided to switch them off and go home.
Returned this morning to find the trip had switched for ground floor, so this has definitely eliminated a faulty breaker which isn't the case.

He will check all switches for loose wiring today and maybe disconnect all led spotlights and just leave the two main central lights in each room wired up and then see if they trip, as he thinks if they don't trip then the problem may well be with the cheap transformers and may have to replace all transformers with maybe 5watt capacity to sufficiently supply the 3w led lights .

Only baffling thing is they can still trip whilst lights are off so somebody here mentioned it rules out the drivers .

As for the installer whether he is NIC approved , the answer is I am not sure but is there a way to check online or somewhere , I know the tester is as he provided the certificate .
 

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