Re: 110, 115, 117, 120 or 125 VAC ???
From: Steve Rodway[SMTP:Legion-at-bigfoot-dot-com]
Sent: Saturday, January 03, 1998 4:17 AM
To: Tesla List
Subject: Re: 110, 115, 117, 120 or 125 VAC ???
Tesla List wrote:
> From: Adam[SMTP:absmith-at-tiac-dot-net]
> Sent: Friday, January 02, 1998 7:23 PM
> To: tesla list
> Subject: 110, 115, 117, 120 or 125 VAC ???
> I am curious about mains voltage and equipment ratings. I have
> transformers, computers, and all kinds of appliances that can't seem to
> agree on what voltage they would like to be given. 110, 115, 117, 120
> and 125 seem to be the most popular values, but why so many subtle
> variations? Are these different standards for different parts of the
> country? My home's service clearly measures 120.0 VAC, but my newest
> variac is calibrated for 115V input. That's why I ask.
> Ditto for the 220, 225, 230, 240 VAC appliances.
I may be able to clear up the 220,225,230,240 problem, different european
countries have at times used all of these voltages, but most equipment was
designed to run on any of the above, there is now a european standard of 230V (+
or - 5% I think).