OP
Gerry24
In the case of a class I or class II appliance the body of the appliance woulld need to have exposed metal parts for an insulation test to be carried out.
Might be wrong but I think the minimum IR for a class I is 2 megohms and 7 megohms for a class II.
So you are going to put the probe on an all insulated plastic case ???
I'm with you on this one wirepuller. If the plastic case has exposed screwheads that go into the body of the appliance then you may be able to connect these to the earth probe but if the appliance is totally plastic with no exposed conductive parts at all then you can't do the test. And, unless the casing is cracked or chipped in some way, which you would pick up on a visual inspection, then no exposed conductive parts should mean no risk of electric shock.
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