Don, Yes, good point. 73, Erik K7TV -----Original Message----- From: Don Wilhelm <donw...@embarqmail.com> Sent: Tuesday, July 10, 2018 8:56 AM To: Erik Basilier <ebasil...@cox.net>; Elecraft@mailman.qth.net Subject: Re: [Elecraft] Breakers for KPA1500?
Erik, One of the benefits of using a new and direct line to the breaker box to power both 240 and 120 in the shack is that the 120 volt (and the 240 volt) green wire ground is a straight run to the breaker box instead of being run willy-nilly from receptacle to receptacle through the house. The one dedicated run creates less noise on the power to the shack. 73, Don W3FPR On 7/10/2018 11:40 AM, Erik Basilier wrote: > It is abundantly clear that 3 conductors plus protective ground are > needed if there will be any load, on the same circuit, that requires > 120V as opposed to 240V only. I certainly agree 100%. It is also clear > that the person who installs 240V for the PA only could get away with > one conductor less. In that case, his other ham equipment would > presumably run on older 120V wiring. So, the person contemplating the > installation of 240V for the PA has a choice: Should he add the extra > conductor to make possible operation of 120V equipment on the new > wiring? An argument against it would be that it puts more load on the > new wiring and it doesn't utilize the 120V capacity already installed. > However, as has been pointed out, ham equipment doesn't constitute > that much of a load, even for a station at full legal power. My > personal feeling is that it is a good idea to use the new wiring (with > all 4 conductors) for all the ham equipment, as mixing the old and new > power circuits provides more opportunity for disastrous transient damage with > a nearby lightning strike. Just my 2c. ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
