[ARC5] 125 VAC Line? Make Your BA's Happy,

[Richard Knoppow]

    This discussion got me curious. I found:

http://www.worldstandards.eu/electricity/plugs-and-sockets/

    There is a pretty good history at:

https://en.wikipedia.org/wiki/AC_power_plugs_and_sockets

     It seems to me the current (no pun intended) sockets in England had 
a shutter which covered the hot terminals when no plug was inserted. The 
grounding prong on the plug pushes this aside. While someone here 
claimed far fewer people got electrocuted by 240V and 120V I think that 
is due to the safety plugs and sockets.
     Actually, it is CURRENT that is important. See:
https://www.physics.ohio-state.edu/~p616/safety/fatal_current.html


On 1/18/2016 1:31 PM, D C _Mac_ Macdonald wrote:
> Not correct in USA and Canada, Neil.
>
> Looking at "normal" wall socket:
>
> NEUT  HOT
> |
> |......|
> |......|
> |......|
> |
>
> ....O...
>
> ...GND...
>
> Turn it counter/anti-clockwise so that the ground/earth
> is on right and the hot would be on top!
>
> BAD, BAD, BAD!
>
>
> * * * * * * * * * * *
> * 73 - Mac, K2GKK/5 *
> * (Since 30 Nov 53) *
> * Oklahoma City, OK *
> * USAF, Ret'd 61-81 *
> ** FAA, Ret'd 94-10 *
> * * * * * * * * * * *
>
>
>
>
> > Date: Tue, 19 Jan 2016 08:40:26 +1300
> > From: neilb0627 at gmail.com
> > To: k2gkk at hotmail.com
> > Subject: Re: [ARC5] 125 VAC Line? Make Your BA's Happy,
> > CC: arc5 at mailman.qth.net
> >
> > Good points, except that positioning Earth (what you call ground)
> > to the right would be safest, since the Active pin is on the right
> > as you look at the pins end on.
> >
> > I don't know why the sockets are oriented as they are, except that it
> > was apparently decided by 1937 according to this, which also shows
> > pictures of the Australian-NZ-Pacific Islands plug and socket.
> >
> > 
> https://en.wikipedia.org/wiki/AC_power_plugs_and_sockets#Australasian_standard_AS.2FNZS_3112_.28Type_I.29
> >
> > 73 de Neil ZL1ANM
> >
> >
> > On 1/19/16, D C _Mac_ Macdonald <k2gkk at hotmail.com> wrote:
> > > I would opine that the "safest" orientation would be with the "ground"
> > > pin pointed to the left. That would put the "ground" and neutral at
> > > the highest positions to intercept any falling metallic object.
> > >
> > > Second safest would be ground pin up.
> > >
> > > Third and fourth least safe would probably be a tie between "ground"
> > > pin pointed right or "standard" orientation with "ground" pin down.
> > > Choose between object shorting between hot and neutral or hot and
> > > "ground."
> > >
> > > * * * * * * * * * * *
> > > * 73 - Mac, K2GKK/5 *
> > > * (Since 30 Nov 53) *
> > > * Oklahoma City, OK *
> > > * USAF, Ret'd 61-81 *
> > > ** FAA, Ret'd 94-10 *
> > > * * * * * * * * * * *
> > >
> > >
> > >
> > >
> > >> Date: Mon, 18 Jan 2016 17:09:06 +1300
> > >> From: neilb0627 at gmail.com
> > >> To: arc5 at mailman.qth.net
> > >> Subject: Re: [ARC5] 125 VAC Line? Make Your BA's Happy,
> > >>
> > >> As an afterthought to my piece about the insulated pins, sockets here
> > >> are *always* mounted with the live (Active) pin and its Neutral 
> partner
> > >> mounted uppermost. The Earth pin is therefore always downmost and
> > >> is longer so that it enters first and leaves last. If you can get the
> > >> Earth
> > >> pin entered on the correct angle, the other two will follow.
> > >>
> > >> Back at the fuse box, Neutral is connected to Earth and then they
> > >> connect to a metal rod driven deep into the soil outside the 
> building.
> > >> Everyone knows that the Active wire is the dangerous one - if you
> > >> touch it, there may be enough capacitance to ground (the real earth)
> > >> to deliver a severe shock.
> > >>
> > >> 73 de Neil ZL1ANM
> > >
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-- 
Richard Knoppow
1oldlens1 at ix.netcom.com
WB6KBL

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