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@wolf480pl@mstdn.io

Post #4118743

2026-07-26 18:40 UTC

@FoxVK@mastodon.sandwich.net depends If PEN splits into PE and N before RCD, and then these two wires are connected again after RCD, then it should trip all the time. Like, you shouldn't be able to turn it on when there's any load at all, because ~half of the return current goes not-through-the-RCD. If "PE" after RCD is only connected to N after RCD, and not to PE before RCD, then the test button should trip the RCD, but a leakage to chassis won't trip the RCD, which is bad. I'm not a certified electrician btw. 1/

Replies (1)

  • @FoxVK@mastodon.sandwich.net 2026-07-26 18:54

    @wolf480pl@mstdn.io That is a good point. One of my home owners was about to do that with led light. (it was double insulated so there was no PE screw) but I managed to tlak him to not do that after some time :D

    Open ##4118742