Dead short

[Jel]

When carrying out a EICR the lighting circuit will show a dead short if you have forgotten to disconnect a lamp somewhere. Is there anyway of getting a true reading without removing all of the lamps?

 

[trev]

Short answer , no

 

[ipf]

Dead short answer.......NO

 

[Guitarist]

Unless you are Mr Bean. Think he shot his lamps with an air pistol instead of turning them off. That would do it.
(Guitarist in no way condones the use of air pistols as a way of turning off lamps)

 

[telectrix]

too inaccurate. use a rifle.

 

[vernam616]

leave the switch in the off position?

however not then a true reading as you wont have tested the IR of the switch line

 

[telectrix]

a compromise would be to test L-N, L-E, N-E with switches off, then short L/N and test to E with switches on.

 

[Crosswire]

You could do both live conductors to earth, but of course this would not give a L-N IR. BTW with downlights you would also have to remove the transformers....

 

[Guitarist]

It IS very hard to remove lamps tho :ihih:

 

[GLENNSPARK]

leave the switch in the off position?

however not then a true reading as you wont have tested the IR of the switch line

exactly.....strappers to be tested in both directions n all.....

 

[telectrix]

it is with those GU10s where you need to pull the fitting out to remove the lamp.

 

[GLENNSPARK]

You could do both live conductors to earth, but of course this would not give a L-N IR. BTW with downlights you would also have to remove the transformers....

and you'd be agreeing this with the client n all before any 'limited testing' is carried out.....

 

[Guitarist]

it is with those GU10s where you need to pull the fitting out to remove the lamp.

Time for Mr Bean...

 

[i=p/u]

id say you as the inspector would decide this, and if you had coppies of other cetificates and didnt want to disrupt service to building, you could plough on and catch it next time

 

[Jel]

You could do both live conductors to earth, but of course this would not give a L-N IR. BTW with downlights you would also have to remove the transformers....

You can state in limitations no L-N testing on EICR.