Because they are still in there for another couple of months with no power to kitchen or down stairs living room.so why are you bothering if she sold the house ?
Also good to get to other perspectives - things I've missed or not thought of!
Discuss Fault Find - advice please! in the UK Electrical Forum area at ElectriciansForums.net
Because they are still in there for another couple of months with no power to kitchen or down stairs living room.so why are you bothering if she sold the house ?
I think the previous RCD was waiting to be replaced like you've done.
Sorry Dave I've tested RCD's in both ways you've described. But testing the RCD remotely was exactly how I was shown to do it both on my city & guilds and AM2.Why? The RCD only failed the test when the test was carried out incorrectly, it would be better to replace the person doing the testing than the RCD.
if he's selling off to a developer,just leave a few live ends lying round to remind him to get s competent spark in to do his new installation.
seems like you can't accept a bit of banter. if so, plumbing might be a better career.Helpful. Thanks for the input.
I read this forum most weeks - I've learnt a lot from other people's questions, but time and time again I see people asking for help just get slated. (DIY'ers aside)
Genuinely, what is the point........... another keen user of the forum lost.
Mate it's difficult to grasp the tone in text and when the last few posts were critical and personal rather than helpful I hope you can see why I may have misinterpreted your post, if it was just banter, then my apologies for flying off the handle.seems like you can't accept a bit of banter. if so, plumbing might be a better career.
To be honest these guys have an c&g in electricians banter, I've struggled past that one too!
Really appreciate that, thanksHi Mike - once there are circuit faults you will only get a clear result if you do the RCD test with circuits removed as per #22. Then if RCD tripped at 15mA or less it's out of spec, as it should not trip at 15mA. Since it's not resolved, I would look for N-E fault in any circuit of the installation. Good hunting
You're right, with a student tuition fees loan behind you you'd need a sense of humourC&G
Some of them have First class degrees .....
Keep on the forum Mike their not all that bad they do warm to you.Mate it's difficult to grasp the tone in text and when the last few posts were critical and personal rather than helpful I hope you can see why I may have misinterpreted your post, if it was just banter, then my apologies for flying off the handle.
Really appreciate that, thanksHi Mike - once there are circuit faults you will only get a clear result if you do the RCD test with circuits removed as per #22. Then if RCD tripped at 15mA or less it's out of spec, as it should not trip at 15mA. Since it's not resolved, I would look for N-E fault in any circuit of the installation. Good hunting
Thanks Bob - my thoughts exactly. It's lift the floor or chase my tail around a bit more. I appreciate the thoughts on the arcing though. I had split the ring and tested back towards the board, but IR tests came back satisfactory. But I think your right, the brake in the line conductor is likely to be the location of both faults.Is the downstairs a solid floor or floorboards? You say the downstairs sockets are a ring.Does each socket downstairs have at least 2 twins in each socket or is the ring upstairs via joint boxes and just legs run down to each socket(if it's solid floors)?
If the floor is floorboards then it should be wired from underneath.In which case you need to start taking off sockets and disconnecting each leg of the ring and testing back to the mains.If that leg is totally clear then move onto the next leg and disconnect and test.My guess is the lack of continuity on the lives is probably where the fault is also.
Don't forget that just because the insulation resistance is reading clear on your meter doesn't mean that there is an arc somewhere within the ring and your tester isn't powerful enough to bridge the gap.If the fault is in the upstairs joint boxes then your going to have a hard time finding it without lifting the floor.
Good luck!
Thanks Richard, just to answer your question, I did test with the earths connected. I took the neutrals out, but the earths were connected.When testing your IR to earth did you include the earth bar, i.e. were the cpcs connected to the earth bar at the time of test or were they disconnected cables.
If they were disconnected cables then there maybe a fault from a live conductor to a different earthed part, so a repeat IR test from the live conductors to the earth bar may give a faulty result.
Presumably because the RCD is almost holding at times the fault sound like a progressive fault i.e. it has been getting worse and worse until it just starts to trip the RCD. This would then tend to indicate something like slow water/moisture build up or a partial breakdown of an electronic circuit.
Just some thoughts.
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