Neutral Earth Fault

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Neutral Earth Fault

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uksparks

uksparks

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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...
 
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uksparks said:
Whatever
Click to expand...

Come on, you're an experienced member who knows what this place is like and you stated that you changed a CU because it was a crap 3036 board which was hanging off the wall. Did you seriously expect not to get stick?

If you had changed the board 'after discussing the merits of adding RCD protection as part of the larger job of extensive alterations to the installation' then there would likely be no reaction at all.
 
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davesparks said:
Come on, you're an experienced member who knows what this place is like and you stated that you changed a CU because it was a crap 3036 board which was hanging off the wall. Did you seriously expect not to get stick?

If you had changed the board 'after discussing the merits of adding RCD protection as part of the larger job of extensive alterations to the installation' then there would likely be no reaction at all.
Click to expand...

accepted, i suspect everyone has there way of doing things and things they perhaps shouldn't share due to getting stick. I have said the cable is being replaced.

ill keep quiet now.
 
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it's OK. UK. you're amomg friends here:
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MUPPET-DOCTOR-WHO-020911.jpg
 
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....I'm going to give UKsparks a break...i love an under-dog...

His honest enough post has got scent in the hyeenas nostrils...yep,we all know,or should,the correct sequence of events,and whilst these may not have been adhered to,there are lots of other rules,in instances such as this,such as not being legally able to prevent the home-owner saying "i want it on" or "I'm turning it on..."

The comment regarding trainees viewing such details is fair,although their instruction should not leave no place,for a bit of "real-world" input,and being capable of judging the rights and wrongs of said details.

The man who never made a mistake,never made anything :icon12:
 
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PEG said:
....I'm going to give UKsparks a break...i love an under-dog...

His honest enough post has got scent in the hyeenas nostrils...yep,we all know,or should,the correct sequence of events,and whilst these may not have been adhered to,there are lots of other rules,in instances such as this,such as not being legally able to prevent the home-owner saying "i want it on" or "I'm turning it on..."

The comment regarding trainees viewing such details is fair,although their instruction should not leave no place,for a bit of "real-world" input,and being capable of judging the rights and wrongs of said details.

The man who never made a mistake,never made anything :icon12:
Click to expand...

There is when a certificate is too be issued and signed by myself.
 
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The Main issue for me is that dead tests should have been carried out before energising the board forget the customer wanted is house back on, That's tough he is not the professional. The 2nd issue and probably more serious is that the damaged cable as been left damaged and even worse as been left energised.
 
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ImpededLoop said:
I'm not knocking you, but this fault should have showed up when you did the dead tests before energising the installation.
Click to expand...

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.
 
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sparksburnout said:
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?
Click to expand...

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.!!!!
 
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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!
 
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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:
 
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