This leakage issue has to be resolved ASAP. It's pretty serious thing if our cell cases create bridges to chassis. Please send me all data&pictures of these cases. -Jukka President in Europe TSWEG
torstai 2. kesäkuuta 2016 Lee Hart via EV <ev@lists.evdl.org> kirjoitti: > Cor van de Water via EV wrote: > >> One solution is to make sure you have a good ground connection and not >> use GFCI. >> > > That was my solution for years with floodeds. Use an isolation > transformer. Plug the charger into it. It's a straightforward and safe > solution. > > I still have some big 2kw 120/240vac toroids for $50 you need one. > > The US standard is ridiculously sensitive at 5 mA while in Europe the >> residential >> GFCI trigger at 30 mA. >> > > Where you set the standard depends on what you consider an "acceptable > risk" for serious injury or death. 1 death per 100 incidents? 1 in a > thousand? 1 in a million? > > Hospitals use a very low 0.5ma standard, because an infant or invalid in > bed is already weak, and can't remove themselves from the source of the > shock. They want the risk to be essentially zero. > > 5ma is reasonable for small devices and where kids, the elderly, or infirm > are involved. It's painful, but very unlikely to be fatal. Allowing a > higher current reduces the cost of meeting it, so they traded off the cost > vs the benefit. > > 30ma is pretty high. That's enough to kill even a normal healthy person > under the right circumstances. I suspect this was chosen to minimize cost > of compliance. It's also easier to meet for large machines, where there are > many possible leakage paths (like an EV with hundreds of modules). > > Success hunting the leakage ghosts! >> > > There's something strange > Doing under the hood > Getting shocks and pains > And it don't look good > Leaky posts to ground? > And they can't be found? > Who ya gonna call? > POST BUSTERS! > > ...I ain't 'fraid of no posts! :-) > > -- > "IC chip performance doubles every 18 months." -- Moore's law > "The speed of software halves every 18 months." -- Gates' law > -- > Lee Hart, 814 8th Ave N, Sartell MN 56377, www.sunrise-ev.com > _______________________________________________ > UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub > http://lists.evdl.org/listinfo.cgi/ev-evdl.org > Read EVAngel's EV News at http://evdl.org/evln/ > Please discuss EV drag racing at NEDRA ( > http://groups.yahoo.com/group/NEDRA) > > -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.evdl.org/private.cgi/ev-evdl.org/attachments/20160602/f95613b2/attachment.htm> _______________________________________________ UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub http://lists.evdl.org/listinfo.cgi/ev-evdl.org Read EVAngel's EV News at http://evdl.org/evln/ Please discuss EV drag racing at NEDRA (http://groups.yahoo.com/group/NEDRA)
