Insulation resistance test on new circuit

[SPARTYKUS]

on newly installed wiring 2 meg is certainly not acceptable.
but 50 meg on newly plastered walls is pretty good and will certainly climb after a drying period.
liking the new avatar sparty.

thanks

 

[bigbaddave]

2m on a new build and your happy... Mmm ok bud me thinks not. I appreciate its a pass in the regs but in my opinion there's is a reason in which why its low and with that reading would spend a little time investigating the fault.

 

[SYKRAPS]

I have been testing for years and years, 1 meg ohm, i would take a look for damp or damage on a circuit, simple to brerak down, and test, over 2 would not waste my time, stick it to 10o0v and test 99 times out of 100 the ohms will rise, damp.

Why test at 1000v?

 

[SPARTYKUS]

Why test at 1000v?

It increases the incidence of temperatures.

 

[SYKRAPS]

It increases the incidence of temperatures.

But testing at 1000v gives poorer readings and is not required

 

[SPARTYKUS]

Sorry I was being an idiot... Agree its not required.