kyak changed the topic of #qi-hardware to: Copyleft hardware - http://qi-hardware.com | hardware hackers join here to discuss Ben NanoNote, atben/atusb 802.15.4 wireless, anelok and other community driven hw projects | public logging at http://en.qi-hardware.com/irclogs and http://irclog.whitequark.org/qi-hardware
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<wpwrak> i 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 like
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<DocScrutinizer05> err, you got RCD in backbones?
<DocScrutinizer05> *very* unusual
<DocScrutinizer05> RCD are commonly only used on very last 50m even *after* last breaker fuse
<DocScrutinizer05> on common 4wire (RSTN) you can not implement RCD since 3 phases share one Neutral wire
<DocScrutinizer05> or you could, but that RCD would break all 3 phases then
<DocScrutinizer05> LN single phase RCD are only possibly on a per-flat level
<DocScrutinizer05> but the army of AC all starting at same time might easily overload the backbone and trip the blowfuse
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<wpwrak> the RCD is on my side, yes. perhaps it doesn't like the load characteristics of my air conditioning.
<wpwrak> ah, 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 ..
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