G
George Herold
Guest
Why do US 120 VAC power plugs have holes in the end of the blades?
George H.
George H.
Guest
On Tue, 15 May 2012 11:22:21 -0700 (PDT), George Herold
<gherold@teachspin.com> wrote:
ensure the item can't be plugged in for use?
<gherold@teachspin.com> wrote:
To allow you to put the shackle of a small lock through the blade to
ensure the item can't be plugged in for use?
P
Phil Hobbs
Guest
news@jecarter.us wrote:
make it less likely to jiggle loose. The British solved that problem by
the traditional method of "add mass until nothing breaks."
Cheers
Phil Hobbs
--
Dr Philip C D Hobbs
Principal Consultant
ElectroOptical Innovations LLC
Optics, Electro-optics, Photonics, Analog Electronics
160 North State Road #203
Briarcliff Manor NY 10510
845-480-2058
hobbs at electrooptical dot net
http://electrooptical.net
I suspect it's to mate with a small boss on the blades of the socket, to
make it less likely to jiggle loose. The British solved that problem by
the traditional method of "add mass until nothing breaks."
Cheers
Phil Hobbs
--
Dr Philip C D Hobbs
Principal Consultant
ElectroOptical Innovations LLC
Optics, Electro-optics, Photonics, Analog Electronics
160 North State Road #203
Briarcliff Manor NY 10510
845-480-2058
hobbs at electrooptical dot net
http://electrooptical.net
I
Ian Field
Guest
"Phil Hobbs" <pcdhSpamMeSenseless@electrooptical.net> wrote in message
news:4FB2BA60.381879AC@electrooptical.net...
I always marvelled at how the Yanks got away with such flimsy plugs when
half the voltage means twice the current for the same load power.
news:4FB2BA60.381879AC@electrooptical.net...
I always marvelled at how the Yanks got away with such flimsy plugs when
half the voltage means twice the current for the same load power.
J
Jamie
Guest
George Herold wrote:
Jamie
Jamie
P
Phil Hobbs
Guest
Ian Field wrote:
Cheers
Phil Hobbs
--
Dr Philip C D Hobbs
Principal Consultant
ElectroOptical Innovations LLC
Optics, Electro-optics, Photonics, Analog Electronics
160 North State Road #203
Briarcliff Manor NY 10510
845-480-2058
hobbs at electrooptical dot net
http://electrooptical.net
Your Victorian ancestors didn't get it either.
Cheers
Phil Hobbs
--
Dr Philip C D Hobbs
Principal Consultant
ElectroOptical Innovations LLC
Optics, Electro-optics, Photonics, Analog Electronics
160 North State Road #203
Briarcliff Manor NY 10510
845-480-2058
hobbs at electrooptical dot net
http://electrooptical.net
J
John Fields
Guest
On Tue, 15 May 2012 21:42:24 +0100, "Ian Field"
<gangprobing.alien@ntlworld.com> wrote:
A blade made of brass with a width of 1/4", a thickness of 1/16" and a
length of about an inch is hardly flimsy, and serves us well when we
opt to go to 240V and eke out four times the power available from the
mains without changing plugs.
--
JF
<gangprobing.alien@ntlworld.com> wrote:
---
A blade made of brass with a width of 1/4", a thickness of 1/16" and a
length of about an inch is hardly flimsy, and serves us well when we
opt to go to 240V and eke out four times the power available from the
mains without changing plugs.
--
JF
C
Chiron
Guest
On Tue, 15 May 2012 11:22:21 -0700, George Herold wrote:
occurred to me to wonder about that... shame on me...
I've been using those suckers for over fifty years, and it never once
occurred to me to wonder about that... shame on me...
M
Michael A. Terrell
Guest
George Herold wrote:
So the current can flow, of course! ;-)
--
You can't have a sense of humor, if you have no sense.
So the current can flow, of course! ;-)
--
You can't have a sense of humor, if you have no sense.
G
George Herold
Guest
On May 15, 4:19 pm, Phil Hobbs
<pcdhSpamMeSensel...@electrooptical.net> wrote:
open a receptacle.
George H.
<pcdhSpamMeSensel...@electrooptical.net> wrote:
Is there such a boss in the female end? Now I'm going to have to rip
open a receptacle.
George H.
M
Michael A. Terrell
Guest
George Herold wrote:
There were, in the early ceramic outlets.
--
You can't have a sense of humor, if you have no sense.
There were, in the early ceramic outlets.
--
You can't have a sense of humor, if you have no sense.
G
George Herold
Guest
On May 15, 10:15 pm, Chiron
<chiron613.no.sp...@no.spam.please.gmail.com> wrote:
countries. And no one else has holes in their blades.
(like these)
www.phihong.com/assets/pdf/PSC12R.pdf
George H.
<chiron613.no.sp...@no.spam.please.gmail.com> wrote:
I was looking at 'wall warts' with different 'blades' for different
countries. And no one else has holes in their blades.
(like these)
www.phihong.com/assets/pdf/PSC12R.pdf
George H.
C
Chiron
Guest
On Wed, 16 May 2012 01:01:49 -0400, Michael A. Terrell wrote:
figure out, if you know a little science?
--
Don't mind him; politicians always sound like that.
Of course! Once you pointed it out, it was obvious. See what you can
figure out, if you know a little science?
--
Don't mind him; politicians always sound like that.
F
Fred Abse
Guest
On Tue, 15 May 2012 16:19:44 -0400, Phil Hobbs wrote:
on two sides. About a third of the surface area wasted. The ones I've come
into contact (no pun) with seem to get rather hot on full load.
Nasty clumsy things.
The German Schuko system seems to me to be superior.
--
"For a successful technology, reality must take precedence
over public relations, for nature cannot be fooled."
(Richard Feynman)
Shame they had to go for thick rectangular section pins with contact only
on two sides. About a third of the surface area wasted. The ones I've come
into contact (no pun) with seem to get rather hot on full load.
Nasty clumsy things.
The German Schuko system seems to me to be superior.
--
"For a successful technology, reality must take precedence
over public relations, for nature cannot be fooled."
(Richard Feynman)
K
krw@att.bizzzzzzzzzzzz
Guest
On Wed, 16 May 2012 10:44:03 -0700, Fred Abse <excretatauris@invalid.invalid>
wrote:
wrote:
Over-designed and too expensive. Typical German stuff.
K
krw@att.bizzzzzzzzzzzz
Guest
On Wed, 16 May 2012 01:01:49 -0400, "Michael A. Terrell"
<mike.terrell@earthlink.net> wrote:
<mike.terrell@earthlink.net> wrote:
No, silly! The current in a conductor is carried by electrons, not holes!
C
Charles
Guest
wrote in message news:iud5r75736lbfqcloqqgqbakpoflio1953@4ax.com...
On Tue, 15 May 2012 11:22:21 -0700 (PDT), George Herold
<gherold@teachspin.com> wrote:
ensure the item can't be plugged in for use?
That is correct. There might be other reasons.
On Tue, 15 May 2012 11:22:21 -0700 (PDT), George Herold
<gherold@teachspin.com> wrote:
To allow you to put the shackle of a small lock through the blade to
ensure the item can't be plugged in for use?
That is correct. There might be other reasons.
I
IanM
Guest
krw@att.bizzzzzzzzzzzz wrote:
will run cool carrying 16A if in reasonable condition. Of course it
should never be carrying 16A for long as the plug is fused at 13A. There
are other brands that are satisfactory. Cheap crap that barely meets the
standard or falsely claims to do so is another matter. I would estimate
that half the moulded on plugs one meets are junk.
The French system with the earth pin on the socket is preferable.
You may finf this site interesting:
<http://www.fam-oud.nl/~plugsocket/Overview.html>
--
Ian Malcolm. London, ENGLAND. (NEWSGROUP REPLY PREFERRED)
ianm[at]the[dash]malcolms[dot]freeserve[dot]co[dot]uk
[at]=@, [dash]=- & [dot]=. *Warning* HTML & >32K emails --> NUL:
Shouldn't. A good quality properly wired MK brand plug and socket
will run cool carrying 16A if in reasonable condition. Of course it
should never be carrying 16A for long as the plug is fused at 13A. There
are other brands that are satisfactory. Cheap crap that barely meets the
standard or falsely claims to do so is another matter. I would estimate
that half the moulded on plugs one meets are junk.
top and bottom of the socket.
The French system with the earth pin on the socket is preferable.
You may finf this site interesting:
<http://www.fam-oud.nl/~plugsocket/Overview.html>
--
Ian Malcolm. London, ENGLAND. (NEWSGROUP REPLY PREFERRED)
ianm[at]the[dash]malcolms[dot]freeserve[dot]co[dot]uk
[at]=@, [dash]=- & [dot]=. *Warning* HTML & >32K emails --> NUL:
F
fungus
Guest
On Wednesday, May 16, 2012 7:44:03 PM UTC+2, Fred Abse wrote:
in either way around (ie. live/neutral swapped)
causing massive sparks when you try to connect
your printer to your PC due to the difference
in ground levels.
Nope. The best plugs I've seen are the UK ones.
Apart from having the best shape they also
have a fuse inside the plug so the fuse
rating matches the device (gasp!) and
everything else in the house doesn't stop
working when something shorts out.
They also thought to put on/off switches
on all the wall sockets - incredibly useful.
....apart from the fact that you can plug them
in either way around (ie. live/neutral swapped)
causing massive sparks when you try to connect
your printer to your PC due to the difference
in ground levels.
Nope. The best plugs I've seen are the UK ones.
Apart from having the best shape they also
have a fuse inside the plug so the fuse
rating matches the device (gasp!) and
everything else in the house doesn't stop
working when something shorts out.
They also thought to put on/off switches
on all the wall sockets - incredibly useful.
I
Ian Field
Guest
<krw@att.bizzzzzzzzzzzz> wrote in message
news:ak48r7tontcvi50lc1mthrhsirefejootf@4ax.com...
In WW2 their tanks had to be literally stripped down out in the field if
anything broke.
news:ak48r7tontcvi50lc1mthrhsirefejootf@4ax.com...
They've always done it that way!!
In WW2 their tanks had to be literally stripped down out in the field if
anything broke.