Digital Insulation Tester Meter Megger

[Timmo]

Integrity of insulation is stressed by applying DC current at 500 V (not double the supply voltage).

I might pull my TAFE books out here. Perhaps the method has changed over the last few years.

[elkangorito]

I have to agree with you Timmo.

Virtually all extension leads etc are rated at 0.6 to 1kV, therefore the correct test voltage should be 500 volts. This goes for V75/V105 PVC Building Wire as well.