110/120 volts was basically decided upon for political reasons in the USA
and not technical reason.
-Mike
-----Original Message-----
From: amps-bounces@contesting.com [mailto:amps-bounces@contesting.com] On
Behalf Of Roger Parsons
Sent: Sunday, April 03, 2011 5:28 PM
To: Amps
Subject: Re: [Amps] what is a 4 wire 240VAC service?
There are a couple of things I don't understand: :-)
(1) When it became clear, probably close to 100 years ago, that 120V was too
low a voltage to efficiently power room (or tubes with handles) heaters and
similar equipment, why did North America not follow the rest of the world
and move to a 230V system? That is, a 3 wire 230V AC service.
(2) What bright spark decided that black was a good colour choice for the
hot wire?
Actually, there are many other things I don't understand, but those will do
for now.
73 Roger
VE3ZI
_______________________________________________
Amps mailing list
Amps@contesting.com
http://lists.contesting.com/mailman/listinfo/amps
_______________________________________________
Amps mailing list
Amps@contesting.com
http://lists.contesting.com/mailman/listinfo/amps
|