hi could do with some help :|

[samson337]

Hi all don't post much on here coz im never good on explaining anything when emailing but far better face to face if you no what I mean anyway job today was periodic before board change all went well with everything got though testing all other circuits and then came ring main one for the whole house so did end to end no reading so I think open ring then did R1&R2 got 0.64 then did R1&RN and got 9.8 or 10.8 at all sockets can any one Shed light on this pulled all sockets off all looked good so think it's under floor coz a few rough spurs going back week Monday just can't get my head round it any help would be great thanks

 

[Megaohm7]

Hi samson337. When you did your end to ends what conductors gave you an open circuit?

 

[Doc Hudson]

Were all appliances unplugged? Have you tried any IR tests?

Doc H

 

[Graham Lister]

Is the full stop button working on your keypad? Sorry couldnt resist it!

If you have done end to end readings and no continuity on anything this suggests you are not testing a ring, eg two radials in one breaker. If sure its a ring remove a socket and do tests again from this point, splitting it into two smaller rings so to speak and see what readings you get, keep going until you have narrowed the break to a certain leg of the ring then repair accordingly. If not able to repair make circuit as safe as possible and downgrade to 16A.

 

[ProDave]

Could downgrade to two 20A radials as another alternative.

But to be honest, 1 ring for a whole house is poor, and as you have been encountering "a few rough spurs" perhaps you should be advising the customer that the ring main(s) need rewiring.

Otherwise, advise the customer a good deal of time is needed on the job to sort out the fault and either re instate it as a ring, or make it into two acceptable radials.

Sounds like you have under floor junction boxes somewhere that may be the cause of your fault.

 

[samson337]

Thank guy for your help much appreciated my message could of been better last night, first off the customer told me a kitchen fitter fitted full kitchen and done some electrics for him, but when I checked his work it was poor spur off a spur straight out of a kitchen socket and theses were running washer dryer freezer and so on :_| I had to remove the draw cabinet witch took an hour just to un plug fridge, O and he had done the the spurs in the bedrooms, very poor work so god help when I go back week Monday to lift floors boards and try and find problem, sorry for long text, but when I did tests I got end to end on cpc but none on L & N , so think at some time it was a ring because all other work is good and you can reel a real spark did it but can any one explain the readings I got on R1 & RN witch was around 9.8 and 10.8 and ins test was fine. And my parting coment is I'm not calling kitchen fitters as he had done a good job on the fitted kitchen but not so good on electrics and no cert's for the work . Thanks again for the help. Tony

 

[ProDave]

You SHOULD call the kitchen fitter, and get him, at his expense to make his work safe, and issue a certificate for the work he did.

Assuming this is in England, did he notify it under part P?

I think Trading standards need to be notified of the poor work done with full details of who did it.

Politely ask the kitchen fitter for proof of his qualifications as an electrician.

It sounds like he's good at fitting kitchen cabinets, but not good as an electrician. He should stick to doing what he is good at.

 

[Boschisbest]

I would go along with what ProDave said. You need to cover yourself. As sometimes, just sometimes you may come across the ol' adage...... "well it worked fine untill you touched it" ....

Good Luck... let us know how you get on.

 

[m4tty]

What was the end to end result of r2, did it look about right for the size of ring? 10.8 ohms on r1 plus rn sounds like a bad connection somewhere. Don't you just love it

 

[batty]

If there are a couple of spurs or single socket and spur next together in kitchen thats were i would look seen it before silly kitchen fitter doesn't realise you need to loop between the legs hence ring on cpc but open circuit on lives.

 

[kme]

There is no point whatsoever doing R1+R2, or R1+Rn; until you`ve resolved the issue in the PREVIOUS step; end-to-end. They`re useless readings, `cos they`re meaningless - you`ve done ring test on a circuit that isn`t a ring....WHY?

When the result of a test is wrong; STOP going through the tests until you`ve resolved the problem. Then go back to the beginning, and start again.

I`m not going to comment on those results - they don`t matter.

KME