I'm the owner of the Leaf Rex channel Cor mentioned earlier. I highly caution against using PCB fuses in general, I've done testing on those also: https://youtu.be/CMlpCX0bug8 If you have a relatively large open circuit voltage in the system you are trying to protect, it will create a conductive plasma and char the PCB, leaving behind a "resistor" which can continue to burn, though hopefully self-extinguish in keeping with the "flame retardant" part of FR-4.
- Justin On Mon, Jan 21, 2019 at 1:09 PM <ev-requ...@lists.evdl.org> wrote: > Message: 13 > Date: Mon, 21 Jan 2019 15:25:38 -0500 > From: Martin Klingensmith <mar...@nnytech.net> > To: Lee Hart via EV <ev@lists.evdl.org> > Subject: Re: [EVDL] 18650 cell level fuse wire > Message-ID: <623a4924-a24a-52f3-b720-2ee3c2f69...@nnytech.net> > Content-Type: text/plain; charset=utf-8; format=flowed > > > IIRC I've seen "fusible links" on PCBs. They're a short section of > copper trace that is much narrower than the rest of the trace. My > understanding is that they're used for an extra level of protection or > where the designer thinks they're really clever. For all modern PCB > materials it's not *too* unsafe because they aren't (supposed to be) > flammable. > > - > > Martin K _______________________________________________ UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub http://lists.evdl.org/listinfo.cgi/ev-evdl.org Please discuss EV drag racing at NEDRA (http://groups.yahoo.com/group/NEDRA)
