insulation resistance test split load board

[darren bergin]

hi all
is it ok to do an insulation resistance test on the whole of a split load board and associated circuits at incoming meter tails
or will the test cause damage to the split load rcd
a lot of rcd says they must be disconnected when doing insulation resistance test or damage will occur

thanks
great forum ... very informative by the way..

 

[Adam_151]

a lot of rcd says they must be disconnected when doing insulation resistance test or damage will occur

That, my friend, is the answer (unless you are testing all live conductors together to earth and the RCD is one without a fucntional earth connection - in which case there wouldn't be a prob)

 

[darren bergin]

so is it ok to link phase + neutral incoming and do insulation resistance to earth on whole installation.
will this save damage to rcd on typical split load board?

thanks

 

[Adam_151]

so is it ok to link phase + neutral incoming and do insulation resistance to earth on whole installation.

Only where there is a justifyable reason to omit the live/live IR test... (and too lazy to disconnect one RCD doesn't really count in my book...)

will this save damage to rcd on typical split load board?

Yes