PA Testing surge protection extension lead

[yellowvanman]

Try not to do PA Testing but had to do it today!

Was doing the above today after a cottage got flooded. Lead didn't appear to be wet, but failed the insulation test @ 0.7Mohms, this was at a test voltage of 250V.

Re-tried it with my installation tester at 100V and 50V and got the same readings. I thought a surge protector should pass insulation testing if test voltage is 250V or less, or am I being dumb, or is the lead really duff?

 

[Darkwood]

Hi Yellowvanman, I moved your thread to the relevant section

 

[yellowvanman]

Hi Yellowvanman, I moved your thread to the relevent section

Thanks

I thought there was a PAT Testing board but couldn't find it!

 

[Richard Burns]

Surge protected extension leads should pass an insulation Resistance test at 250V, generally they bypass to earth at about 400V so a 500V test will fail (and possibly negate the surge protection).

I would say that the lead was damaged in some way, possibly it had taken a surge before and is now dead.