----- Original Message -----
From: "Roger Parsons" <ve3zi@yahoo.com>
To: "Amps" <amps@contesting.com>
Sent: Sunday, April 03, 2011 8:27 PM
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
2. It probably didnt confuse a color blind electrician or home owner.
Carl
KM1H
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