Discuss Full spread of tests after CU change. in the Electrical Forum area at ElectriciansForums.net

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I know that many electricians only carry out quick and basic tests after a CU change, but I thought I'd share this with you.
I am a fussy so and so, as many of you already know, so following a CU change I carry out every test imaginable. Having established no shared neutral, good bonding, good IR checks, etc. prior to carrying out said change, I got stuck in to a full spread of testing after installing it....
Was in the process of carrying out an R1+R2 test on every point in the lighting circuit, when I came across an open circuit at a bedroom ceiling rose... Checked switch, connections etc, but no joy. After half an hour in the loft, found the supply to the bedroom lighting joined in a JB but with the cpc ends not connected, just sitting there happily a few inches apart outside the JB, covered in loft insulation.
This is why I would rather be a few quid out of pocket time-wise, than skimp on testing.
 
O

Octopus

Its a bit like not bothering to check the ring circuit at every socket - I always do but suspect many don't
 
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Its a bit like not bothering to check the ring circuit at every socket - I always do but suspect many don't

Exactly mate. I was only saying to my wife this morning that I'd no doubt spend many boring hours on a hot sunny day, carrying out all these tests just for it all to be perfect, and then this pops up!
Makes it all worth while :)
 
S

steveberry11

I know that many electricians only carry out quick and basic tests after a CU change, but I thought I'd share this with you.
I am a fussy so and so, as many of you already know, so following a CU change I carry out every test imaginable. Having established no shared neutral, good bonding, good IR checks, etc. prior to carrying out said change, I got stuck in to a full spread of testing after installing it....
Was in the process of carrying out an R1+R2 test on every point in the lighting circuit, when I came across an open circuit at a bedroom ceiling rose... Checked switch, connections etc, but no joy. After half an hour in the loft, found the supply to the bedroom lighting joined in a JB but with the cpc ends not connected, just sitting there happily a few inches apart outside the JB, covered in loft insulation.
This is why I would rather be a few quid out of pocket time-wise, than skimp on testing.


Good for you Guitarist. This is what testing is for. There seems far too many people looking for reasons not to fully test.
 

trev

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One lad I worked with refused to do it claiming he wasn't trained to as he didn't have 2391. I always thought a spark should be able to test his own work, some others refused to test a new install because "You know it's going to be ok" disgusting attitude
 
S

steveberry11

One lad I worked with refused to do it claiming he wasn't trained to as he didn't have 2391. I always thought a spark should be able to test his own work, some others refused to test a new install because "You know it's going to be ok" disgusting attitude


Quite right Trev all electricians should have a good understand of inspection and testing regardless of being 2391 trained.
How can electrician carry out electrical work walk away and let the tester carry the can if he misses a fault.
At least they have to sign the EIC cert for construction.
 

ExArmy

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question, do you do the RCD test on every circuit? or do you just do it on one circuit on each rcd (for a 17th board) and duplicate the results?
 
O

Octopus

One lad I worked with refused to do it claiming he wasn't trained to as he didn't have 2391. I always thought a spark should be able to test his own work, some others refused to test a new install because "You know it's going to be ok" disgusting attitude

I think its the "I can't be bothered attitude" - no pride in the work they do, god help them if they ever go down the self employed route in he future...
 

trev

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One guy sat in his car one day making up test results and then photocopied the sheets and submitted them for every rewire he did on the decent homes programme. The same guy now has AC status with NICEIC and has guys working for him.
 
G

Guest55

question, do you do the RCD test on every circuit? or do you just do it on one circuit on each rcd (for a 17th board) and duplicate the results?

2 rcds in a CU = 2 rcd tests
preferably at the device itself or from a nearby socket if easier.
 
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