I think they will fuse out before unlimited current.
On Tue, Jan 7, 2014 at 12:23 PM, Lee Hart <[email protected]> wrote: > Cor van de Water wrote: > >> I know that Lee has posted regularly about his zener+bulb balancer >> and today I was finally making the connection while freeing our >> Christmas tree from its light strings... >> >> >> I have no clue why they strung *12* strings of *50* lights each in a >> 6-ft tree. No wonder it consumed somewhere around 260 Watts. >> > > Maybe they lived in Minnesota. Excess power usage in the winter isn't > waste -- it heats your home! :-) > > > While unstringing, I was wondering what to do with the removed lights. >> These are 2.5V lights that draw about 22W per string, approx 180mA >> according to my Kill a Watt meter. >> Then it hit me - these are probably perfect to use in balancers. >> > > That's not a bad idea! :-) Though there is one shortcoming: These bulbs > are designed to fail *shorted*. If one burns out, it shorts so the rest of > the string will still light. That would be bad news if it's across a > battery that can supply unlimited current. > > You'd have to experiment with a burned-out bulb to see just how high the > current gets, and if it would be a safe failure. > -- > "Obsolete" means nothing more than "the salesmen would prefer you buy > something else." -- Dave McGuire > -- > Lee Hart -- See my Xmas projects at www.sunrise-ev.com/projects.htm > > _______________________________________________ > UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub > http://lists.evdl.org/listinfo.cgi/ev-evdl.org > For EV drag racing discussion, please use NEDRA (http://groups.yahoo.com/ > group/NEDRA) > > -- Put this question to yourself: should I use everyone else to attain happiness, or should I help others gain happiness? *Dalai Lama * Tell me what it is you plan to do With your one wild and precious life? Mary Oliver, "The summer day." To invent, you need a good imagination and a pile of junk. Thomas A. Edison<http://www.brainyquote.com/quotes/quotes/t/thomasaed125362.html> A public-opinion poll is no substitute for thought. *Warren Buffet* Michael E. Ross (919) 550-2430 Land (919) 576-0824 <https://www.google.com/voice/b/0?pli=1#phones> Google Phone (919) 631-1451 Cell (919) 513-0418 Desk [email protected] <[email protected]> -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.evdl.org/private.cgi/ev-evdl.org/attachments/20140107/6e5ad0ad/attachment.htm> _______________________________________________ UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub http://lists.evdl.org/listinfo.cgi/ev-evdl.org For EV drag racing discussion, please use NEDRA (http://groups.yahoo.com/group/NEDRA)
