From: g4gvw <g4gvw@aol.com>
To: rsgb_lf_group@blacksheep.org
In-Reply-To: <B6BDFD1D-0FCC-4EBE-9920-020CC93135BC@numeo.fr>
References: <20111010.114840.1660.0.riese-k3djc@juno.com>
	 <B6BDFD1D-0FCC-4EBE-9920-020CC93135BC@numeo.fr>
Date: Tue, 11 Oct 2011 13:40:52 +0100
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Subject: Re: LF: mains wires
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Hi John and All,

At least you do have a copy John. My strong suggestion is that all of us
"who play radio" should have a copy close by. The readily available
"Electrician's Guide to the 17th Edition ...etc" by John Whitfield
should be obtainable from Amazon and elsewhere (mine came from
Waterstones) and is highly recommended. It covers the IEE Wiring
Regulations BS7671 (2008) and Part P of the Building Regs. I can't
remember the price but I would suggest that the info within is priceless
if it prevents a dangerous occurrence.

Rgds

73



On Mon, 2011-10-10 at 18:40 +0200, John Rabson wrote:
> On 10 Oct 2011, at 17:15CEST, riese-k3djc@juno.com wrote:
> 
> > 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,
> 
> (Warning:  my comments are based on what I remember from the early 2000s.  My copy of the UK wiring regulations is rather old.  Can anyone provide more up-to-date information?)
> 
> UK was 240 but is now officially 230 (EU harmonisation).   Normal domestic appliances use 230V.  Standard 3-pin socket outlets are limited to 13A.  For higher current, such as for an electric cooker, a separate fixed feed - not via a plug and socket - is required.  A clothes dryer would be designed to take a maximum of not more than 13A at 230V.
> 
> This is all single phase.  Very occasionally you may find a 3 phase supply in the home, but the supply companies don't like providing it.  If I remember correctly, additional regulations apply for 3 phase  Such supplies are usually four wire (3 phases and neutral) with 240 from each phase to neutral and 415 between phases. 
> 
> John F5VLF/G3PAI
> PS France was 220 but is now officially 230.
> 
> 
> 
> 

-- 
73 es gd dx de pat g4gvw
 qth nr felixstowe uk
(east coast, county of suffolk)