On 7 Oct 2002 at 19:58, Patchem, Eric EM2 wrote: > Most of the Industrial > chargers I have worked on (up to 96 volts) all had some form of isolation > device.
Some EV hobbyists would rather put their money into tire-burning batteries, controllers, and motors than into safely isolated chargers. There are several people on this list who call me an alarmist, and they may be right. But I'm concerned that every non-isolated charger installed in an EV increases the risk of a tragic event, like the electrocution of a young child. If that were to happen, apart from the awful nature of the death, it would be a significant setback for EVs in general. It would be one more point for the anti-EV lobby to use in building fear of EVs -- how many of us have had people ask "Don't you get shocked when it rains?". Such an event could easily result in legislation negatively affecting hobbyist EVs, at least in some areas. For the sake of everyone's safety, including your own: if you elect to use a nonisolated charger, such as a BC-20 or one of Rich's high-power PFC models, please add an isolation transformer. Or wait until Rich develops an isolated model. = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = Want to unsubscribe, stop the EV list mail while you're on vacation, or switch to digest mode? See http://www.evdl.org/help/ = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = David Roden - Akron, Ohio, USA 1991 Solectria Force 144vac 1991 Ford Escort Green/EV 128vdc 1970 GE Elec-trak E15 36vdc 1974 Avco New Idea rider 36vdc = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = Thou shalt not send me any thing which says unto thee, "send this to all thou knowest." Neither shalt thou send me any spam, lest I smite thee. = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = =
