IR testing question

[luke12345]

Hi there, I was wondering would someone be able to give me a little advice as I'm about to do a periodic on a horrible office that has all sorts of equipment above the suspended ceilings and has those fancy thorlux fittings with the eco pots. Im a little scared of wapping 500v volts down the cables as I dont want to blow anything, its happened to me before and cost me a few pennies to fix! Anyways, Would it be fine to just do the test between L - E on all the circuits? this wouldnt do any damage would it? How do you go about testing building like this?

Cheers

 

[Farmelectrics]

no it wouldnt do any damage but if you join l n together and then test to earth using 250v first if you get a good reading increase to 500v the above test is method test 2 and is perfectly ok refer to gn3

 

[telectrix]

what he said^^^ be sure to link L-N before testing.

 

[luke12345]

ahh right, one more thing. How would I fill these results on a test cert? what would go in each box for Line/Neutral, Line/Earth, Neutral/Earth
Also is this method allowed for new installations? for buildings ive not wired but Im testing and am a little unsure of whats in hidden away?

 

[telectrix]

well, you can enter your figures in the L-E and the N-E boxes, but in the L-N box enter N/V. in the comments section, note thae L-N IR tests were not done due to connected equipment.

 

[luke12345]

muchas gracias, does N/V mean no value by any chance?

 

[Deleted member 26818]

Not Verified.