MINIUM INSULATION RESISTANCE READING

[Tom Crabbe]

Hello,
has anyone noticed in the new GN3 that any reading below 20 Mohms now has to be investigated or is this a printing mistake as it used to be 2Mohms?

Thank you

Tom

 

[ruston]

That is referring to a new installation and you would not expect the reading to be below that .
In domestic or recently plastered installations could have readings lower than that , but unlikely in trunking or tray for example.

 

[Deleted member 72666]

You mean these fellows?

 

[Moley]

View attachment 47606
You mean these fellows?

The minimum IR has to be 20 Minions?
[checks screen on megger]
Mine only goes up to 2 Kevins.