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Garage consumer unit rcd trips out

Discuss Garage consumer unit rcd trips out in the Lighting Forum area at ElectriciansForums.net

This is what happens when Kev the kitchen fitter rewires your garage:

View attachment 41639

For the record he's used 0.75mm flex for the socket circuit!
What happens when a part p 17th edition qualified electrician does the job, well might just be wired up wrong by a electrician, no surely not electricians are all up to same standards. They never make mistakes . Mmm? I find out sure enough soon.....
 
This is what happens when Kev the kitchen fitter rewires your garage:

View attachment 41639

For the record he's used 0.75mm flex for the socket circuit!
What happens when a part p 17th edition qualified electrician does the job, well might just be wired up wrong by a electrician, no surely not electricians are all up to same standards. They never make mistakes . Mmm? I find out sure enough soon.....
Reading only the opening post
The description of how its tripping,the very hasty conclusion that the operation of loading to one particular circuit was tallying with the tripping Rcd
Therefore it "must be" the offending (in this case fluorescent fitting) causing the problem

That is a wrong conclusion for you to make
It is not the way to identify a problem or problems, it certainly does not confirm any such thing as a cause ( which was claimed in the first post)
You are probably,not possibly,probably, being sidetracked to the real cause by incorrect assumptions
Well i wouldnt of thought if would be that hard to determine from a home owners tests.
Two flourecents that are on two way switching when switching off trips rcd . But when i swap them to light pendants they dont trip the rcd.
So change them to working flourecents from the other side of the garage ceiling and they still trip the rcd suggest to me its not faulty flourecents. And its not faulty switches. Its either a wiring fault or a oversensitive rcd.
Pendants work on these two circuits but flourecents dont. Carnt be that hard to work out. . ......
I get another electrician in to see if he can tell me before i spend any money on components i dont need.
 
Reading only the opening post
The description of how its tripping,the very hasty conclusion that the operation of loading to one particular circuit was tallying with the tripping Rcd
Therefore it "must be" the offending (in this case fluorescent fitting) causing the problem

That is a wrong conclusion for you to make
It is not the way to identify a problem or problems, it certainly does not confirm any such thing as a cause ( which was claimed in the first post)
You are probably,not possibly,probably, being sidetracked to the real cause by incorrect assumptions
Perhaps its a good idea to read my last statement rather than just the first one so as not to assume this is the actual case when in fact it isnt and you have commented on the what i have said to early i feel... I DONT BELIEVE ITS THE FLOURECENT FITTINGS AT FAULT! !!!!
 
What happens when a part p 17th edition qualified electrician does the job, well might just be wired up wrong by a electrician, no surely not electricians are all up to same standards. They never make mistakes . Mmm? I find out sure enough soon.....

That cu was fitted in a garage by a kitchen fitter .... fact
 
That cu was fitted in a garage by a kitchen fitter .... fact
Never said or implying any thing about your example of bad wiring . I am talking about my garage lighting issue. I am saying it could be possible that the electrician who wired my garage consumer unit up could of miss wired two of the cables for the light circuit, hence this is the result. But i would of thought test results and readings would of picked this up . I dont know just asking that what electricians have to do to check, right?
 
What happens when a part p 17th edition qualified electrician does the job, well might just be wired up wrong by a electrician, no surely not electricians are all up to same standards. They never make mistakes . Mmm? I find out sure enough soon.....

Well i wouldnt of thought if would be that hard to determine from a home owners tests.
Two flourecents that are on two way switching when switching off trips rcd . But when i swap them to light pendants they dont trip the rcd.
So change them to working flourecents from the other side of the garage ceiling and they still trip the rcd suggest to me its not faulty flourecents. And its not faulty switches. Its either a wiring fault or a oversensitive rcd.
Pendants work on these two circuits but flourecents dont. Carnt be that hard to work out. . ......
I get another electrician in to see if he can tell me before i spend any money on components i dont need
.

Just because you have removed inductive loads and stopped or reduced the tripping does not determine the cause of fault,the type of fault and it is certainly not a remedy


Earth leakage problems can be driven by the use of a load on one circuit whilst the fault causing the tripping may be a separate circuit
There may be induced currents generated by the switching of a inductive load
If it were that easy,why oh why would there be a market for expensive specialised test meters?
 
With all the to and fro here, I hesitate to enter. The whole things probably a mess so could be spoilt for choice, but my internet 20p bet is switches too.
 
With all the to and fro here, I hesitate to enter. The whole things probably a mess so could be spoilt for choice, but my internet 20p bet is switches too.
without proper testing equipment etc i am not going any further as whats the point of changing stuff that might not be faulty . when i get a electrician out i post on here what the issue was. doubt its the switches very much as work with pendants on this circuit. i switch either works or it doesnt thats my understanding ........
 
Saying it works with pendants and not with fluorescents therefore it can't be the switch is incorrect. They are different types of load and different things happen when they are switched off.
 
from a home owners point of view it would of been nice to try and fix the fault MYSELF but gone as far as i can without killing myself as safety is concerned . got a sparkey coming out tomorrow. should be interesting .........lol more money spent
 
from a home owners point of view it would of been nice to try and fix the fault MYSELF but gone as far as i can without killing myself as safety is concerned . got a sparkey coming out tomorrow. should be interesting .........lol more money spent

Just don't make them look at these threads if they are charging by the hour......
 
Show the sparky the problem then leave them to it.

Also if they don't have proper test kit and a clamp metre ..... Show them the door!
 
the length of time this thread been going, i could have driven the 250 miles, sorted it out, and been back in the local for last orders with £800 in my arse pocket. ( price including travel time and costs)
 
In post #9 you said you would get a spark in ............ then you started complicating matters by suggesting a variety of random changes ........... then others started to wade in ......................

Me thinks this went off track days ago...
 
well it doesnt help when people keep make none informative comments and stating what they would do with this fault .
what i would do is fix it. that's how i earn a crust. the ways and means need not concern you. all you need to know is that before a spark came it was broke. after he left, it worked.
 
Saying it works with pendants and not with fluorescents therefore it can't be the switch is incorrect. They are different types of load and different things happen when they are switched off.
Yes, I understand exactly what you're saying. But, this assumes all the information to hand is accurate :rolleyes: . Just having a cheeky sidebet.
 
Lets have a sweep stake on what the fault will be. In no particular order;

  1. Faulty RCD 1/1
  2. Loose terminations 1/1
  3. IR fault 1/1
  4. Incorrect or faulty wiring 1/1
  5. Faulty switches 1/2
  6. Faulty fluorescents 1/1
  7. Wiring routed inappropriately 1/1
  8. Fault on an adjacent circuit 1/1
  9. None of the above 1/1
  10. OP is imagining things 1/1
  11. 'R' in the month 1/1
  12. J Corbyn's house, enough said 1/1
Rules;
  • OP can't vote
  • You can add your own suggested vote, which others can vote on
  • Voting closes at midnight tonight
  • Winner(s) receive 'Winners' thing
Placed my vote :)















  • IF I'M RIGHT YOU ALL OWE ME £10
 
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Yes, I understand exactly what you're saying. But, this assumes all the information to hand is accurate :rolleyes: . Just having a cheeky sidebet.

Just in case you think I was having a go... I kinda was, but not at you Wilko. More the insistence from the OP that it can't be the switches.

My bet is still on loose connections at some point in the circuit, possibly even some minor damage to a conductors insulation that's manifesting itself when the field collapses in the ballast.

I just hope we hear what the fault really is :)
 
Just in case you think I was having a go... I kinda was, but not at you Wilko. More the insistence from the OP that it can't be the switches.

My bet is still on loose connections at some point in the circuit, possibly even some minor damage to a conductors insulation that's manifesting itself when the field collapses in the ballast.

I just hope we hear what the fault really is :)

Too late for that now, place your bets. :D
 
Here's my vote... sorry, split decision :)

  1. Faulty RCD 1/1
  2. Loose terminations 1/2
  3. IR fault 1/2
  4. Incorrect or faulty wiring 1/1
  5. Faulty switches 1/2
  6. Faulty fluorescents 1/1
  7. Wiring routed inappropriately 1/1
  8. Fault on an adjacent circuit 1/1
  9. None of the above 1/1
  10. OP is imagining things 1/1
  11. 'R' in the month 1/1
  12. J Corbyn's house, enough said 1/1

Edit:- Updated.. hope I've done it right :D
 
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