3+1 wires sounds to me like three phase service which would be common
for a large industrial service. but as others have said the bare would
in fact be a neutral/ground conductor and would in fact be connected.
replace "roosters" with "cox" to reply.
I've only lived here for about 12 years. The building that cable feeds
was once a clothing store in the 50's. then a JC Penneys, (in the 1960s
- 80s) then it was supposed to be a become a bar/restaurant, (early
2000s) with a dance hall, but after some renovation, the owner moved,
and the place was never opened. Now it's unoccupied. The building is
likely close to 100 years old. The entire downtown consists of building
of that age, except for a few newer ones. My guess is that the wires
may have been 3 phase, but I really dont know why a clothing store or
Penneys would need 3 phase. But I'm wondering if that cable was added
in the early 2000's when that bar/restarant was supposed to open. I
could see the need for 3 phase for walk in coolers and other industrial
food preparation equipment. It's hard to tell the age of that cable,
but it's older looking, but not cracked or bad looking. I'd take a wild
guess that the power company installed it for future upgrade to 3 phase
for that bar/rest. Just a guess!!!!
Prior to that 1950s clothing store, I'm not sure what the building was
used for, and so far no one else in town seems to remember, except that
maybe it was a clothing store going way back to when it was built. It's
a large 3 story building for a small town, but would be small for a big
city. Typical turn of the century store front with large glass windows.
It's supposed to be in pretty good shape for its age, but the guy just
leaves it vacant and dont try to sell it. Apparently he must think it's
going to be a "gold mine" in later years. Who knows????
On Jan 14, 2:44 pm, email@example.com wrote:
The power demands of a typical JC penny are going to
be greater than the power needs of a bar/restaurant.
For one thing, a large dept store has large HVAC needs.
Any dept store I've been in would blow away a bar/rest
from that standpoint alone.
Also, the JC Penny type stores typically have escalators,
It's hard to tell the age of that cable,
Seems rather unlikely. How could anyone predict
decades ago what might or might not go into a building at some point
in the future? IF anything it would appear that
it was a 3 phase service that was backed down to 240V.
On Sun, 13 Jan 2013 05:57:42 -0600, firstname.lastname@example.org wrote:
That says "3 phase".
Three hots and a neutral.
You can verify it by looking at the transformers.
If you see 2, one perhaps bigger than the other, it is 3 phase center
tapped delta. (AKA red leg or wild leg)
If you see 3 equally sized transformers it is usually 3p wye
On 1/13/2013 10:05 AM, email@example.com wrote:
Well, if it were physically connected to the structure/pole, w/o it
being electrically connected it would be pretty clear it wasn't an
electrical conductor wouldn't it? And, then it would be even more
unlikely to be said it was "unconnected".
No, I didn't introduce the idea that it was the neutral.
The OP stated that in the first sentence:
"A large store downtown has a heavy FOUR wire triplex
feeding the building. 3 wires are black insulated, the other
is the bare neutral. "
Then he says:
"The thing that caught my attention to it, is that the 4th wire is
connected to anything. "
So he's saying he has 3 black insulated, the other is the
bare neutral. The 4th wire is not connected to anything.
I took that 4th wire to be the bare neutral. But it's not
clear what exactly he means by the 4th wire. If it's one of the 3
blacks, I would think he would just say one of the blacks
is not connected.
The confusion is that he first says there are 3 black
wires and a bare neutral. Then he says the "4th wire"
is not connected to anything. Since he was talking
about 3+1 and then says "the 4th wire", I took that
4th wire to be the bare neutral. It's not clear what
the 4th wire is. If the 4th wire is one of the other
three, then I would think he would have said:
There are 3 blacks, one of them is unconnected and
there is a bare neutral. That is the way the rest of you
seem to be interpreting it. Hopefully he'll clarify.
On Sun, 13 Jan 2013 08:27:47 -0800 (PST), " firstname.lastname@example.org"
That is why I said "look at the transformers"
The topic is called "what is FOUR wire Triplex for? and the answer is
I bet if he posts a picture, you are going to see that bare wire
connected to the strand on the pole and one might believe that is not
connected to anything but that is the neutral.
On Jan 13, 11:58 am, email@example.com wrote:
Yes, I agree, IF they are all in fact connected. But
that sure isn't what he's saying. And as I've said,
from the confusing post, it's not clear exactly what
the 4th allegedly unconnected wire is, ie the bare or
one of the conductors.
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