#qi-hardware IRC log for Friday, 2015-06-19

wpwraki guess it's the air conditioning that trips the RCD. building is without gas for months -> all A/C are on -> after a blackout, they revert to their prior state (i.e., on) -> that does something the RCD doesn't like00:54
DocScrutinizer05err, you got RCD in backbones?15:12
DocScrutinizer05*very* unusual15:12
DocScrutinizer05RCD are commonly only used on very last 50m even *after* last breaker fuse15:13
DocScrutinizer05on common 4wire (RSTN) you can not implement RCD since 3 phases share one Neutral wire15:15
DocScrutinizer05or you could, but that RCD would break all 3 phases then15:16
DocScrutinizer05LN single phase RCD are only possibly on a per-flat level15:16
DocScrutinizer05but the army of AC all starting at same time might easily overload the backbone and trip the blowfuse15:17
wpwrakthe RCD is on my side, yes. perhaps it doesn't like the load characteristics of my air conditioning.22:07
wpwrakah, and the blackouts have an explanation, too: since the building is without gas for months, everyone switched to electrical heating. this now overloaded the building-wide fuses, and we had separate phases fail on successive days. let's he how we'll fare tonight ..22:14
--- Sat Jun 20 201500:00

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