May 31, 2011
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I swapped a db on a job yesterday and there is a fault on the heating circuit and i just cant find it in the most disgusting house you have ever seen what is the deal with putting it on the non rcd side? can i do it
 
its feeding an old immersion tank and two sockets in the bedroom havent done IR as it would mean rooting about in the bedroom having to unplug everything and i have to make clear how manky this house is but it isnt tripping it straight away some times it will stay on for two min some times a hour so im guessing its only tripping under load
 
its feeding an old immersion tank and two sockets in the bedroom havent done IR as it would mean rooting about in the bedroom having to unplug everything and i have to make clear how manky this house is but it isnt tripping it straight away some times it will stay on for two min some times a hour so im guessing its only tripping under load

So you've changed a CU, not done a IR, not unplugged everything and wonder why its tripping???
 
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I wouldn't. My CU change estimates include a caveat about faults discovered during the change and additional charges being made.

How are you going to complete the EIC if you haven't tested that circuit properly. You know its the immersion and sockets so that's half the discovery done
 
No BS 7671 does not have anything in about faulted circuits being place on non RCD protected side Im affraid !
 
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You originally said "heating" and now its immersion - if its the latter I'd be looking at the connections at the immersion first.
 
first thing is to diss. the imm. heater, either by switching off the FCU if it'd D/P, or diss. the cable from the heater. that is the most likely culprit for your fault--the immersion heater element.
 
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Yeah disconnect the element from the supply and try IR between L-N and N-E if eaither are short theb that's mostly your problem. You'll get dead shhort between L-N but you knew that anyway :)
 
Yeah disconnect the element from the supply and try IR between L-N and N-E if eaither are short theb that's mostly your problem. You'll get dead shhort between L-N but you knew that anyway :)

You will get an IR reading of 0.00 M ohms. That's not a dead short, otherwise it would have gone BANG by now...
 
James

In answer to your question its a big NO.

The regs do allow you to place circuits on un RCD protected ways in certain circumstances but never when a fault exists on the circuit.

I am affraid you will have to trace the circuit and fault or leave it disconnected and explain to the customer the reasons why!
 
I swapped a db on a job yesterday and there is a fault on the heating circuit and i just cant find it in the most disgusting house you have ever seen what is the deal with putting it on the non rcd side? can i do it
Just wondering if you are asking such a basic question should you be replacing a db
the route of the cables alone start to answer that one for you.
 
Suck it up and don`t breathe through your nose. Get those circuits tested, find and fix the fault. Issue cert, get paid-premium charge for the scummy conditions.
Learn from it and move on. Just when you think that you have been in hell, along comes hell 2.
I worked in a property once were the fella new about a dead rat in the bottom of his boiler cupboard and he just let it de-compose and rot away
 
Nothing to stop YOU putting it on the non RCB side what so ever. But think about the implications first, it's easier than afterwards when the judge wants to know why?
 
Changing a CU without doing an eicr first is asking for trouble, and as stated it's proberbly the Immersion element
 
Next time i need to add some sockets to a bedroom I'm gonna use the immersion heater radial PMSL :freak:


You might as well, we have had sparks suggesting spuring off shower circuits is fine tonight, I have my cola, but cannot find my popcorn :lol:
 
you know....i`v just read through some of this......and its farcical...i tell you it really is....
 
i have an old washing machine that keeps blowing the fuse in the plug can i exchange it for a bit of welding rod or a nail..?
 
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The big mistake this chap has made is...
he's spotted the place is a complete hell hole in the 1st place and he's taken the job on....
Too late whinging now
 
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The big mistake this chap has made is...
he's spotted the place is a complete hell hole in the 1st place and he's taken the job on....
Too late whinging now
agreed Archy......you took the cash.....now its see it through....
1st thing i would be checkin here is the connected load (immersion heater)
then move on to the cable for the offending circuit (obvious)...
the immersion heater may come back reasonable though cold......
so warm it up first...then IR it....
 
i can sypathise with the fact that alot of houses are complete hell holes dirty and smelly etc,i personaly would not want to spend too much time in them,but i beleive you have a moral and legal requirement that when testing needs doing you do it! A basic IR test checks the original wirring before work is undertaken and afterwards checks what you have done.cheers tony for mentioning rcd's are not compulsery but as he knows it is unlikely that in a domestic enviroment we can get away with non rcd or rcbo protection:smart:

- - - Updated - - -

may i add i am still not sure if this was a wind up thread?
 
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i can sypathise with the fact that alot of houses are complete hell holes dirty and smelly etc,i personaly would not want to spend too much time in them,but i beleive you have a moral and legal requirement that when testing needs doing you do it! A basic IR test checks the original wirring before work is undertaken and afterwards checks what you have done.cheers tony for mentioning rcd's are not compulsery but as he knows it is unlikely that in a domestic enviroment we can get away with non rcd or rcbo protection:smart:

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may i add i am still not sure if this was a wind up thread?
well the thing is king....its just so ridiculous not to be a winder upper this is...
its like you have just said as well.....what is it that some cant get their heads around?....that inspections are for the stuff you can see.....the tests for the stuff you cant ...such as shared and borrowed neutrals damaged/interrupted conductors and cable/fixed load dielectric faults.....
 
ok ,now we have told the op how to test the installation and therefore he could theoreticly solve and rectify the problem therefore making the poor smely sole that has employed him a bit safer as long as the op is an electrician and has a ir tester and nows how to use it?

what about the other tests? he going to make them up too! ...................i hope this was a wind up post because you guys have given advice to someone i would class as unfit for domestic work and ...............and...............etc.
 
cheers glenspark i just couldn't believe that people are tring to solve this problem even if it is a wind up,you never know:6:
 

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Neutral earth fault
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