Human resistance is high enough that it won't matter. My workshop is off-grid solar with a 24V battery pack capable of sourcing over 1,000 amps. I have touched both terminals on numerous occasions and can't feel anything.
The National ELectric Code (NEC) considers anything less than 60V as low voltage and has reduce safety requirements for it. The NEC is overly cautious (ridiculously so in many cases) You can feel 24V across short distances on skin (like an inch or two), but across larger distances (like one hand to the other) your skin resistance (even wet skin) is high enough to limit the current to negligible levels. You'd probably want to add some insulators between those rails and the rest of the track...just to be sure. Still I like Lee's idea of only electrifying the rails under the train for charging when it's stopped October 22, 2020 5:01 PM, "Peri Hartman via EV" <[email protected]> wrote: > Are you sure that rating applies to wet areas ? Imagine the rails are wet and > someone lies across > them or touches one with each hand. > > << Want to know about the effects of leaf blowers ? > https://quietcleanseattle.org >> > > ------ Original Message ------ > From: "Lee Hart" <[email protected]> > To: "Peri Hartman" <[email protected]>; "Electric Vehicle Discussion List" > <[email protected]> > Sent: 22-Oct-20 3:29:09 PM > Subject: Re: [EVDL] miniature train EV project > >> Peri Hartman via EV wrote: >>> Are you sure 24V is safe ? Yes, at low current, and it could be current >>> limited. But in that case there's probably not enough current to be a >>> significant part of running the motor. >> >> UL considers voltages less than 24vac and 8 amps maximum as a "safe" >> class-II circuit, which can be >> exposed so people can touch it. You may feel it; but it won't injure you. > > _______________________________________________ > UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub > ARCHIVE: http://www.evdl.org/archive/index.html > INFO: http://lists.evdl.org/listinfo.cgi/ev-evdl.org > Please discuss EV drag racing at NEDRA (http://groups.yahoo.com/group/NEDRA) _______________________________________________ UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub ARCHIVE: http://www.evdl.org/archive/index.html INFO: http://lists.evdl.org/listinfo.cgi/ev-evdl.org Please discuss EV drag racing at NEDRA (http://groups.yahoo.com/group/NEDRA)
