Electric power systems voltage ratings are specified in ANSI C84.1-2016
For the USA the standard is 120/240 volts +/- 5 percent 73 Frank W3LPL ----- Original Message ----- From: "Jim Finan" <jimfi...@att.net> To: "Don Wilhelm" <donw...@embarqmail.com>, "Elecraft" <elecraft@mailman.qth.net> Sent: Tuesday, September 5, 2017 12:11:12 AM Subject: Re: [Elecraft] Items you think you can depend on Even the NEC (US National Electrical Code) is inconsistent. There are references to 120/240, 125/250, etc. Even 125v, 115v. Don't recall seeing 110v lately but it is a thick book and some sections rarely change. 73, Jim AB4AC Jim Finan Sunny South Florida. Original Message From: donw...@embarqmail.com Sent: September 4, 2017 6:41 PM To: elecraft@mailman.qth.net Reply-to: donw...@embarqmail.com Subject: Re: [Elecraft] Items you think you can depend on I was at the Shelby, NC hamfest this weekend, and we had the KPA1500 for the Elecraft booth. I caught myself several times referring to the line voltage required as 220 even though I know better. My age is showing. But I do know that if one is operating the KPA1500 in a commercial building with 3 phase service, the voltage is 120/208. The KPA1500 power supply is a switcher, and most switchers can tolerate a wide variation in input AC voltage. 73, Don W3FPR On 9/4/2017 6:29 PM, Jim Brown wrote: > On 9/4/2017 2:57 PM, Bert Garcia N8NN wrote: >> 220 VAC in the US it typically 240 volts or more. > > For several decades, 120/240 VAC became the Standard for single-phase > distribution in North America. Those of us who call call it "110" are > showing our age. :) ______________________________________________________________ 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 jimfi...@att.net ______________________________________________________________ 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 donov...@starpower.net ______________________________________________________________ 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
