southseas wrote:... about 4% of them either do not trip at all, or do not trip within 300mS at their Rated Trip Current.
Portable RCDs (plug-in, wireable plug and in-line) are made to BS 7071.
RCDs to this standard should not trip at 0.5x In, should trip within 200ms at 1x In, and trip within 40ms at 5x In (all these for both sides of the waveform). Details here: http://www.greenbrook.co.uk/pdf/pbcatpg23-24.pdf
I'd invest in an RCD Tester that allows you to check that they trip with their rated trip current on both sides of the sine wave (had ones that with trip one side but not the other) within time limit for RCD type.
Definitely better to have one of these, as PAT testers that have an RCD test function tend not to offer the full functionality.
Do the Trip tests after the visual, then use your Europa Plus to check earth bond, IR, and Polarity and manually enter Trip time in comments (which will show up in your results report)
Personally, I wouldn't perform an IR.
BS 7071 devices will not reset if 230V mains isn't present, so the only way to make sure a 500V IR test might work is to hold the reset button in (as safe + sound mentions), and even this won't work properly on certain brands.
Instead, run a leakage/PCC test. This provides 230V mains, so the device can be reset, and the result will be meaningful.
Similarly, I'm not sure a polarity test will work unless the reset button in held in, and then not always.