Insualtion resistance testing.

[Patrick Griffin]

Hi lads,

When IR testing at a board I know i should expect a very high resistance between lives and earth but in a tncs system would i get a lower IR reading testing between N-E? The scenario im describing is one in which the tails are all connected but the board is isolated.

Cheers..

 

[ChrisElectrical88]

not when doing a ze though because you will get false readings

I was on about IR tests.

 

[Patrick Griffin]

Risteard yes the main 63 amp single pole neozed switch fuse, i assumed they had the same means of isolation in the uk when starting this thread.