Neutral Earth Fault

[uksparks]

Hi,

ok ok so I tested this old 3036 board a week ago ready to change today, all ok, nothing bad.

went today to change the board, changed it all etc, had to extend two legs, but other than that, nice job.

i go to switch it on prior to testing like you do, and one of the RCDs won't hold.

bugger, what have I done? Scratching head...

tested IR and its 0.02 between neutral and earth, so I think maybe I missed something previously, I quickly removed a few faceplates as there were only 6 sockets on that ring as it happend, nothing obvious.

anyway, so I think I'll try continuity between Earth and neutral at one we of the ring and got 0.61 and did it the other end and it was 0.02, so I think, that's a bit sodding close to the board, what could it be?

so I start t remove that circuit from the board thinking maybe of done something strange with a joint where I'd extended the leg... Nothing.

so I stand back and think what the heck is it, then I think hang on those shelves weren't there before.... Three large oak shelves, in the return on the wall directly sbove the fuse box....

i thought, I wonder... So got the meter out and touched it on a screw head on the bottom shelf and would you sodding believe it I had continuity!!!

anyway, so I removed the screw and it resolved my problem...

Customer later returns home, says everything ok? I said yes, it is now...

i said they are nice shelves, did you fit them? No we had someone do it for us.... I said tell them they drilled through a cable.

thete were probably 8 cables going straight up the wall where he had drilled 3 holes so not sure how he managed to miss the others, luck I say!

anyway...

 

[uksparks]

I'm not knocking you, but this fault should have showed up when you did the dead tests before energising the installation.

I know, I know its my fault, I do usually fully dead test at the point of changing the board, I guess with this, I had dead tested the week before which is why I jumped a step to just check everything was working as expected, and was then going to dead test.

I hold my hands up to this.

 

[ImpededLoop]

I know, I know its my fault, I do usually fully dead test at the point of changing the board, I guess with this, I had dead tested the week before which is why I jumped a step to just check everything was working as expected, and was then going to dead test.

I hold my hands up to this.

Every day's a learning day. Just learn from it and move on.

 

[TJ Anderson]

Every day's a learning day. Just learn from it and move on.

Really it is no big deal mate. What matters is that you recognised it (well, the RCD did 1st ).

 

[Plonker 3]

[
=TJ Anderson;1076660]Really it is no big deal mate. What matters is that nobody was hurt because of this[/QUOTE]

Better

 

[cotty]

it's OK. UK. you're amomg friends here:
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View attachment 28102

Is that, "you're a mong amongst friends!" Lol

 

[trev]

Crikey!

 

[Des 56]

Just read the whole thread

UK I'm glad to hear you did the dead tests

One question only,were the dead tests on the electrical installation or the user

 

[TJ Anderson]

Just read the whole thread

UK I'm glad to hear you did the dead tests

One question only,were the dead tests on the electrical installation or the user

That's very good haha

 

[tazz]

i go to switch it on prior to testing like you do. What?????? And I get banned for 2 weeks for making a daft criticism ? Are you reading this Tazzy?

You did not make a criticism, you abused other members with bad language in your statements.
Personally, I would class yourself as being lucky....any other mod would have given you 6 months.!!!!

 

[a1guvner]

Its a good job no one fitted anything to the wall or did any works in the week between the initial test and changing the CU, wouldn't happen in the real world, would it?

 

[NDG Elecs]

UK, don't forget to try and bill the idiot (via the client) that drilled through the cable. I won't slag off joiners as I do joinery myself but to drill by a DB willy nilly is plain *¥°*®ng stupid!

 

[baldsparkies]

Soooooooooo, your the reason we all have to start fitting steel consumer units next Jan.
Just kidding !!
I'll start sounding like the rest of the forum wolves at this rate.
Take no notice of em,
None are Electricians, there all failed jobs worth's.
In the real world they were bullied at school.
Real electricians take the Mick out of em, which is why they retreat to this place.
And they do a quick Google search before answering threads, to make it look like they know what there talking about.
In real life there not sparks at all !!
There all traffic wardens. :icon12:

 

[Knobhead]

It will be replaced tomorrow or Thursday.... I'm not going to leave it! Jeeees calm down, what do you take me for!

Do you really want an answer to that?

 

[Knobhead]

Just keep digging, just keep digging

Have you loaned UKS the forums spade or did he provide his own?

 

[davesparks]

Have you loaned UKS the forums spade or did he provide his own?

I think he's had his own custom made one for a while now