Gas oven strike unit insullation test

[captaincaveman]

Hello Beautiful people.

Never thought of this one before...
I have a customer who reckons his gas oven strike unit which is plugged into a socket is tripping the sockets rcbo.
I'm about to trek over to look at it but just pondering if it is safe for me to do an insulation resistance test on it??
If it's tripping due to an insulation issue can I be risking gas ignition by doing the test ?
Anyone come across this before with any suggestions?

 

[brianmoooore]

It's safe at 250 volt for the test.
Check that the flex actually has an earth wire before getting involved.

 

[captaincaveman]

It's safe at 250 volt for the test.

Why would 250v be safe but not 500v? ?
I don't know masses in the way of gas ovens. I presume the gas inlet pipe is insullated from the rest of the oven

 

[brianmoooore]

Because it's subjected to just under 250 volts in normal use.

 

[Pete999]

Why would 250v be safe but not 500v? ?

Na it operates at 230 go figure.

 

[westward10]

Connect the line and neutral together, test to earth at 500v.

 

[captaincaveman]

For reference, it was the strike unit sealed mains plug in the end which I just replaced. I'm going to dissect/cut the plug open at some point to see why it was failing