Mike suggets "So on a class I device only three electrical tests, Protective Earth Resistance, Alternative Equipment Leakage, Alternative Applied Parts Leakage. No need to power up (boot) the device". In all the years I have done electrical safety testing we have always been instructed to have the unit under test powered ON when carrying out an electrical safety test. Is it now standard practice guided by IEC62353 that this is no longer a requirement?
