in the US we have a standard of 120/240 
with the 120 as the appliance voltage
the British and others use 220 for a standard
does that mean that 440 is used for the big power draws
we would place our clothes dryers on 220 do you have 440
in general use in the home

Bob K3DJC

On Sun, 09 Oct 2011 22:44:20 -0400 Elton A Sanders <[email protected]>
writes:
> If it was plugged into US 230v both Black and White would be hot. 
> Mains 
> feed here is 2 hots and Neutral hot to Neutral 115v hot to hot 230v 
> 
> (feed is from a center tapped transformer on the pole).
>       WB5MMB
> 
> 
> On Mon, 10 Oct 2011 01:25:02 -0000, mal hamilton wrote:
> > Bob
> > If you look at a Dentron 2500 amplifier on the cct diagram the 
> 230v
> > mains cable, WHITE wire goes to the ON/OFF switch on amplifier 
> then
> > primary of HT transformer which to me is HOT and BLACK wire goes
> > directly to the other side of primary winding, NEUTRAL and GREEN 
> to
> > chassis.
> > In the UK the switch is always in the LIVE (hot) wire and NEUTRAL
> > direct to the appliance except it happens to be a double switch.
> >
> > UK appliance BROWN live, BLUE neutral, plus an earth wire (3 wire
> > appliance)
> > mal/g3kev
> >
> >> ----- Original Message -----
> >>
> >> Sunday, October 09, 2011 7:48 PM
> >> Re: LF: mains wires
> >>
> >> what I use to keep track
> >>
> >> Black is hot white is not
> >>
> >> Bob K3DJC
> >>
> >> On Sun, 9 Oct 2011 17:09:09 -0000 "mal hamilton" writes:
> >>
> >>> LF
> >>> I have a USA amplifier with 230v input. The mains wires are
> >>> BLACK, WHITE, and GREEN
> >>>
> >>> The cct diagram shows White as the live wire with amplifier 
> mains
> >>> switch in this line, Black goes to the other end directly to
> >>> transformer primary
> >>> and Green to earth.
> >>> but
> >>> according to USA info the Black wire should be Live and White
> >>> Neutral.
> >>>
> >>> So beware !!!!!!!!!!!!!!
> >>> de g3kev
> >>
> >> ____________________________________________________________
> 
> 
> 
> 
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