Ir tests

[Richard Burns]

A value of 725 Mohms is well above the maximum that some testers read to (300Mohm) so that result is absolutely fine. If you were testing a new install and got 75 Mohms then I may be slightly concerned.
14 years is plenty of time to have got to 750 Mohm even if it did not start at that.

 

[Guitarist]

A value of 725 Mohms is well above the maximum that some testers read to (300Mohm) so that result is absolutely fine. If you were testing a new install and got 75 Mohms then I may be slightly concerned.
14 years is plenty of time to have got to 750 Mohm even if it did not start at that.

Absolutely. Don't worry about it Rob, you will see plenty lower on newer installs.

 

[WayneL]

It's only the protective conductor which has to be connected when testing.

OK - and if, like I said, it's a conduit install?

Took me a while to figure out what a buzz bar was. Assume you mean busbar?

Buzz Bar Protection Cover | City Electrical Factors

:teeth_smile:

 

[WayneL]

A value of 725 Mohms is well above the maximum that some testers read to (300Mohm) so that result is absolutely fine. If you were testing a new install and got 75 Mohms then I may be slightly concerned.
14 years is plenty of time to have got to 750 Mohm even if it did not start at that.

You're talking about 725,000,000 ohms - have you divided that into 230 volts to see what current leakage you're going to get?? - 0.0000003 Amps, I think.......shocking.:teeth_smile: