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

[Martin Sole]

And Earth is green and yellow striped.
Was this all changed in line with tests done to assess the safest colours
for people with colour vision difficulties?
Red and black being indistinguishable for certain colour vision
deficiencies.

Out here in the unchecked and unregulated wild lands of Asia domestic wiring
is supposed to be black for phase and grey for neutral. An earth connection
is almost unheard of. Opening a wall outlet reveals pretty much any colour
from the rainbow, depends what they had and how cheap it was. Most domestic
outlets are wired with 1.5mmsq or less if they could get away with it. Makes
running a ham amplifier quite interesting.

Martin, HS0ZED


-----Original Message-----
From: amps-bounces at contesting.com [mailto:amps-bounces at contesting.com] On
Behalf Of Mark Robinson
Sent: 04 April 2011 11:02
To: dezrat1242 at yahoo.com
Cc: amps at contesting.com
Subject: Re: [Amps] what is a 4 wire 240VAC service?

Brown is live in the UK wiring scheme. Blue is Neutral

It used to be red and black before being changed to brown and blue.

Mark N1UK





----- Original Message ----- 
From: "Bill, W6WRT" <dezrat1242 at yahoo.com>
To: "Amps" <amps at contesting.com>
Sent: Sunday, April 03, 2011 11:42 PM
Subject: Re: [Amps] what is a 4 wire 240VAC service?


> ORIGINAL MESSAGE:
>
> On Sun, 3 Apr 2011 17:27:37 -0700 (PDT), Roger Parsons <ve3zi at yahoo.com>
> wrote:
>
>>(2) What bright spark decided that black was a good colour choice for the 
>>hot wire?
>
> REPLY:
>
> Sounds logical to me. Think of the Black Death.  :-)
>
> A better question is why black is used for ground in the electronics
> world. Isn't ground brown?
>
> 73, Bill W6WRT
> _______________________________________________
> Amps mailing list
> Amps at contesting.com
> http://lists.contesting.com/mailman/listinfo/amps 

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