A power supply transformer can't be considered to be totally isolating for safety purposes unless there is a shield between the primary and the secondary that is grounded to the primary. Some marine shore power isolating transformers have this shield, but they are quite expensive and not usually used. Without the shield, there is a possibility for an internal short that would tie the secondary directly into the AC mains. Thus, the rig that is powered by the supply needs to be grounded to the AC ground system.
73, Rick Dettinger K7MW > > > I have not seen the manual mentioned in this thread, and > I may be unclear regarding this, but as all ham radios derive power > from > their separate power supply, isn't the "switch-mode" type isolated? > > then the required "green wire" in the AC line should be tied to the > power supply, not the radio. > > Please correct me if I'm wrong. > > 72 > Ron, wb1hga > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[email protected] > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
