Pulling the cable sorted the problem

[1stfix2ndfix]

I was working as an electricians mate the other day and there was this one light that when turned on kept tripping out the rcd. it was the one at the top on the stairs and was a two way with the one down below sort of thing. I cant remember if it would do it no matter if you used the bottom switch or the top to turn it on but im pretty certain it was only the top as thats where he headed after having me whip the bottom switch off to have a look for anything that might of been pinched. Well after sitting by the cu for a bit flicking the old rcd back on and on lol Im convinced the cable must be have a nick in it somewhere and thus there is no insulation resistance and also for some reason im thinking it can only be on the neutral although i don't know why I think this as if there was a nick on the live it too would mean that what was going out still wasn't coming back but ill put it in there for educational purposes. I was also thinking that this means we need to take that cable out and put a new one (keen and all that!) as its been damaged and in my heAd now the metal conduit we used to pull them down has become live so so has the wall which if they had wet hands and touched might tingle more then with not, again i dont know why i think this i just do and if my mentor is unfazed it must mean im completely wrong but im sure something is up there. Literally a pull on the cables fixed the rcd tripping problem. No testing was done to identify anything on the problem side of things it really was a case of jiggling the cable Although a certificate was issued.

Is it literally a case of no thats fine as the rcd isnt tripping out and the tests carried out conformed with that required to give it a certificate.

All testing was carried out at the board except for me going to the lighting points and taking a earth loop impedance reading and visa versa for the sockets

What was making it do that and whats made it stop, is anyone willing to edgimicate me please

 

[telectrix]

Apologies if it annoys you that's not my aim but I'll keep them coming as and when something pops up that i'm not to sure about. I did ask to go on the trainee forums but according to Paul I'm to advanced for that ...

it don't annoy me, mate. just winding you up. :willy_nilly:

 

[Geordie Spark]

Apologies if it annoys you that's not my aim but I'll keep them coming as and when something pops up that i'm not to sure about. I did ask to go on the trainee forums but according to Paul I'm to advanced for that ...

I think he's pulling your leg!

 

[telectrix]

glad to see you're on the road to recovery, geordie. keep lifting them weights ( and TB . that'll get you fit).

 

[Geordie Spark]

glad to see you're on the road to recovery, geordie. keep lifting them weights ( and TB . that'll get you fit).

Well all of my cars have been kept off the road while all this has been going on but today I felt optimistic enough to book one of the MR2 s ( that one over there <--------- ) in for repairs & MOT on Friday then get the top opened up and have a blast around the countryside.

 

[tidyboiler]

Well all of my cars have been kept off the road while all this has been going on but today I felt optimistic enough to book one of the MR2 s ( that one over there <--------- ) in for repairs & MOT on Friday then get the top opened up and have a blast around the countryside.

So where are you taking me Geordie? :auto: :smilewinkgrin:

 

[Geordie Spark]

So where are you taking me Geordie? :auto: :smilewinkgrin:

Roker Pier and back.

 

[telectrix]

bringing her back???? must be true love ( for TB, i mean, not the MR2 ).

 

[telectrix]

or have a drive to the pool. we'll have morris marina wheels and a cortina engine in it within 20 minutes. :willy_nilly:

 

[tidyboiler]

or have a drive to the pool. we'll have morris marina wheels and a cortina engine in it within 20 minutes. :willy_nilly:

Oh it doesn't need improving tel :dita:

 

[Geordie Spark]

or have a drive to the pool. we'll have morris marina wheels and a cortina engine in it within 20 minutes. :willy_nilly:

Make it a 3 litre Lexus V6 engine and I could be interested.

 

[telectrix]

with or without genuine engine number?

 

[nickblake]

or have a drive to the pool. we'll have morris marina wheels and a cortina engine in it within 20 minutes. :willy_nilly:

i'd class that as a 1970's cut and shut

 

[Geordie Spark]

with or without genuine engine number?

It doesn't matter as long as it's old enough to not need a catalytic converter. We don't like those - they rob us of a bit of performance.

 

[Maddison]

We had a weird one the other day too... 4sets of 400mm singles running from 11kv transformer into next room switchboard.. Last bits of testing after installation, IR testing all good until we came to the last set.. IR around 3Mohm.... What's going on here... Everything disconnected.. Only a 15m run... Jumped up above the tray looking for damage etc.. Nothing... After a lot of itching my nugget we found that moving the cables around by 40-50mm would change the IR value... The only thing we could come up with was a possible moisture issue as it was the last set to be pulled in on the end of the drum.. Ripped out and replaced...