On Sat, 12 Oct 2013 22:38:54 -0400, email@example.com wrote:
Two things trigger a polarized plug and they are;
Screw shell lamp holders, the shell has to be connected to the
neutral. 2 pin lamps like the small series lights don't.
Single pole switches, the switch must open the hot side, if the switch
is 2 pole or no switch, you don't need a polarized plug.
On Sat, 12 Oct 2013 23:30:37 -0400, firstname.lastname@example.org wrote:
BUT - ALL outlets must be either polarized or 2 prong grounded. No
ifs, ands or buts. Because nobody knows what someone will try to
connect to it. Hasn't been a non-polarized / ungrounded receptacle
approved for sale in North America for something well on over 10
years. Yes, you still find the occaisional non-approved Chi-junk
products offered for sale - but less and less every year. Now it's
just stuff that looks like it should/could pass inspection, with fake
inspection stickers - - - - .
On Sun, 13 Oct 2013 14:24:46 -0400, email@example.com wrote:
If the receptacle rejects a polarized plug, (2 narrow slots) it is
Things that get inspected (permanently installed devices) will have
the polarized spec, simply because that is all they sell.
As an inspector, I can not reject a listed non polarized 2 pin
receptacle if it rejects polarized plug. U/L listings do not expire.
You may still see these in remodels if the wiring was not updated to a
grounding wiring method.
That is why they created the wider pin on the 1-15 plug in the first
place, so the older non-polarized receptacle would reject them.
On Sun, 13 Oct 2013 14:44:07 -0400, firstname.lastname@example.org wrote:
Which means the old listed stuff can still be sold, but virtually
nothing non-polarized or non-grounded has been listed in the last 10
or more years. You are not seeing much old product still being made
and sold - most of the old manufacturers are not building the old
stuff, and a lot of the companies that made this sruff don't exixt any
On Sun, 13 Oct 2013 15:51:21 -0400, email@example.com wrote:
So it is not "illegal" it is just not always available. I guarantee
you can still buy Christmas light strings with non polarized plugs and
receptacles on the other end. Just l;ook at the ones that do not have
screw shell lamp holders.
That's the key -- while it's fun to argue the semantics of what's
legal/illegal, listed/non-listed, in the end, those old very skinny
non-polarized plugs, while some may exist, simply aren't very common
anymore -- virtually every one I can see in my house has the wide
skirt, even if (like the laptop cord I just pulled out to check) the
blades themselves are not polarized.
Nobody makes the old tight-pitch adapters because they wouldn't fit
95% of the cords in peoples' houses, so there simply isn't enough
demand to make them, even if they are/were legal. They may also not
want the liability of people trying to jam the new plugs into the
narrow spacing, leaving the blades exposed.
No. Thanks. It's much bigger than what I meant.
DadiOH's whole images page didn't have one either, so I think they no
longer sell them (and it seems they don't even remember them, since
google images isn't just for stuff that's for sale now.)
Maybe I can get a camera and post a picture but until then, let me say
that first, these are 2-prong sockets, non-polarized (2 of the 3 that
the prongs are arranged like ==
and the total distance from the left end of the left slot to the right
end of the right slot is only 1 3/8" for the smallest one, 1 5/8" for
the one Mark posted a picture of, and 1 3/4 for the polarized one.
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