Amps
[Top] [All Lists]

Re: [Amps] what is a 4 wire 240VAC service?

To: <ve3zi@rac.ca>, "Amps" <amps@contesting.com>
Subject: Re: [Amps] what is a 4 wire 240VAC service?
From: "Carl" <km1h@jeremy.mv.com>
Date: Sun, 3 Apr 2011 21:17:28 -0400
List-post: <amps@contesting.com">mailto:amps@contesting.com>
----- 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 

_______________________________________________
Amps mailing list
Amps@contesting.com
http://lists.contesting.com/mailman/listinfo/amps

<Prev in Thread] Current Thread [Next in Thread>