Testing Question....

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EdwardCurrent

Hello All.
I'm trying to get a better understanding of testing procedures and would like some help please. (I do not carry out any testing, or issue any kind of certification).
When measuring the EFLI on a shower circuit wouldn't you need to carry out the test at the shower unit itself to get the correct measurement, or ('reading' that is relevant) ???, and if that is the case wouldn't you need to go to the 'cooker end' of a cookers 'fly lead' :LOL: :LOL: ... I believe that the tests are carried out at the DP switch (shower) and at the connection plate for the cooker ??, I am a bit confused :oops: :oops: .
Any advice, (including go back to page 1 of GN3 and start again), is much appreciated as always.

All the best
Ed
 
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E

EdwardCurrent

Thanks Holmslaw,
I understand the lighting and power circuits aspect, I just cannot get my head around the 'final' part of the circuit definition. Take the cooker example, isn't the 'final' part of that circuit the 'fly lead' that connects into the appliance ?? And as for the shower :eek: I cannot see why you shouldn't carry out the test at the shower unit.. or are you saying you do do the test here ? Sorry.

Regards

Ed
 
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EdwardCurrent

Thank you Holmslaw.
Maybe after only seeing 'new builds' (no cooker) tested, I went off on the wrong path, so to speak. :LOL:
Not pushing my luck, but say on a PIR cert :eek: , you would conduct the test from the 'unit' as opposed to 'its' isolator then ????

Some learning curve this is !!! :oops:

Ed
 
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I doubt that many would remove a built in oven to test EFLI at the incoming terminals. Most would probably test at the isolation switch and verify earth continuity to the metalwork of the oven.
It would be one for the limitations box after being agreed with the person ordering the report.

Also, a PIR is a report, not a certificate.
 
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On a PIR you would talk to the person ordering the PIR - if they want you to dismantle the kitchen to test at the cooker then that is what you have to do.
If they are happy for you to just test from the L in the isolator to the metalwork on the cooker then fair enough.
If they don't want you touching their cooker then that is their shout.
Either of the last two should really be noted in limitations.

Bah - beaten :LOL:
At least it is the same hymn sheet!
 
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On fixed appliances (eg showers, cookers etc) you test at the incoming terminals of the appliance, because that is where the electrical instalation ends.

That too is my understanding. You test at the destination of the circuit.

But, as others have said, this can be impractical. Alternative methods of testing should be noted.
 
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it's like insulation testing with shower switches, the switch has to be disconnected to carry out the test because of the neon light, and a lot of PIRs are done far too quickly for this to be done, you can join the L/N and test between them and earth but it must be noted as a limitation to testing
 

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