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#1
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What is FOUR wire Triplex for?
A large store downtown has a heavy FOUR wire triplex feeding the
building. 3 wires are black insulated, the other is the bare neutral. The thing that caught my attention to it, is that the 4th wire is not connected to anything. All the triplex I've ever seen is 3 wire, two are insulated, one is bare. That's for a standard 240V single phase system. Im thinking that this cable was intended to be for three phase wiring. Three hot, and the neutral. Is this right? Maybe that building once had 3 phase service, or they just had that cable on hand when they wired it, and used what they had... |
#2
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What is FOUR wire Triplex for?
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#3
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What is FOUR wire Triplex for?
On Jan 13, 6:57*am, wrote:
A large store downtown has a heavy FOUR wire triplex feeding the building. *3 wires are black insulated, the other is the bare neutral. The thing that caught my attention to it, is that the 4th wire is not connected to anything. If it's not connected to anything, why are you identifying it as the neutral? You have 3 wires that are apparently current carrying conductors and one that is bare, not connected. Assuming this is overhead, ie going from the pole to the building, sounds like the bare wire is for support only and you have a 240V service, with two hots, one neutral. |
#4
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What is FOUR wire Triplex for?
On Jan 13, 10:01*am, wrote:
On Sun, 13 Jan 2013 05:57:42 -0600, wrote: A large store downtown has a heavy FOUR wire triplex feeding the building. *3 wires are black insulated, the other is the bare neutral. The thing that caught my attention to it, is that the 4th wire is not connected to anything. *All the triplex I've ever seen is 3 wire, two are insulated, one is bare. *That's for a standard 240V single phase system. Im thinking that this cable was intended to be for three phase wiring. Three hot, and the neutral. *Is this right? Maybe that building once had 3 phase service, or they just had that cable on hand when they wired it, and used what they had... That says "3 phase". Three hots and a neutral. Did you read the part where he says the "neutral" is not connected to anything? Sounds like a support wire to me. 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)http://gfretwell.com/electrical/red%...ansformers.jpg If you see 3 equally sized transformers it is usually 3p wyehttp://gfretwell.com/electrical/3%20p%20wye-wye.jpg |
#6
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What is FOUR wire Triplex for?
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#7
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What is FOUR wire Triplex for?
On Jan 13, 10:59*am, dpb wrote:
On 1/13/2013 9:20 AM, wrote: ... Did you read the part where he says the "neutral" is not connected to anything? *Sounds like a support wire to me. ... Iff'en it "is not connected to anything" how can it support anything? I would assume by "not connected to anything", he means it is not electrically connected to anything. He doesn't say anything about whether it's physically connected to the building, pole, etc I'd not think that would be how OP would have written the description if it were the support cable he was speaking of. -- From what he wrote, a lot isn't clear. Hopefully he will clarify it. |
#9
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What is FOUR wire Triplex for?
On Jan 13, 10:55*am, wrote:
On Sun, 13 Jan 2013 07:20:23 -0800 (PST), " wrote: On Jan 13, 10:01*am, wrote: On Sun, 13 Jan 2013 05:57:42 -0600, wrote: A large store downtown has a heavy FOUR wire triplex feeding the building. *3 wires are black insulated, the other is the bare neutral. The thing that caught my attention to it, is that the 4th wire is not connected to anything. *All the triplex I've ever seen is 3 wire, two are insulated, one is bare. *That's for a standard 240V single phase system. Im thinking that this cable was intended to be for three phase wiring.. Three hot, and the neutral. *Is this right? Maybe that building once had 3 phase service, or they just had that cable on hand when they wired it, and used what they had... That says "3 phase". Three hots and a neutral. Did you read the part where he says the "neutral" is not connected to anything? *Sounds like a support wire to me. The bare wire on the pole is the neutral. But again, he says the neutral wire in the service cable that he is talking about is not connected. It can't be a neutral if it's not connected. |
#10
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What is FOUR wire Triplex for?
On 1/13/2013 10:59 AM, dpb wrote:
On 1/13/2013 9:20 AM, wrote: ... Did you read the part where he says the "neutral" is not connected to anything? Sounds like a support wire to me. ... Iff'en it "is not connected to anything" how can it support anything? I'd not think that would be how OP would have written the description if it were the support cable he was speaking of. -- The original post mentions describes the "four wire triplex" with one wire unconnected. "trader" introduced the idea of it being the "neutral" |
#11
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What is FOUR wire Triplex for?
On Jan 13, 11:10*am, George wrote:
On 1/13/2013 10:59 AM, dpb wrote: On 1/13/2013 9:20 AM, wrote: ... Did you read the part where he says the "neutral" is not connected to anything? *Sounds like a support wire to me. ... Iff'en it "is not connected to anything" how can it support anything? I'd not think that would be how OP would have written the description if it were the support cable he was speaking of. -- The original post mentions describes the "four wire triplex" with one wire unconnected. "trader" introduced the idea of it being the "neutral"- Hide quoted text - 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 not 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. |
#12
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What is FOUR wire Triplex for?
On Jan 13, 11:07*am, George wrote:
On 1/13/2013 10:20 AM, wrote: On Jan 13, 10:01 am, wrote: On Sun, 13 Jan 2013 05:57:42 -0600, wrote: A large store downtown has a heavy FOUR wire triplex feeding the building. *3 wires are black insulated, the other is the bare neutral. The thing that caught my attention to it, is that the 4th wire is not connected to anything. *All the triplex I've ever seen is 3 wire, two are insulated, one is bare. *That's for a standard 240V single phase system. Im thinking that this cable was intended to be for three phase wiring.. Three hot, and the neutral. *Is this right? Maybe that building once had 3 phase service, or they just had that cable on hand when they wired it, and used what they had... That says "3 phase". Three hots and a neutral. Did you read the part where he says the "neutral" is not connected to anything? *Sounds like a support wire to me. The version on the newsserver I use does not mention anything about the "neutral" being unconnected. 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. |
#13
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What is FOUR wire Triplex for?
A large store downtown has a heavy FOUR wire triplex feeding the
building. 3 wires are black insulated, the other is the bare neutral. The thing that caught my attention to it, is that the 4th wire is not connected to anything. All the triplex I've ever seen is 3 wire, two are insulated, one is bare. That's for a standard 240V single phase system. Im thinking that this cable was intended to be for three phase wiring. Three hot, and the neutral. Is this right? Maybe that building once had 3 phase service, or they just had that cable on hand when they wired it, and used what they had... *It could be a 3 phase delta service. How many transformers are on the pole? |
#14
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What is FOUR wire Triplex for?
On Jan 13, 11:58*am, wrote:
On Sun, 13 Jan 2013 08:27:47 -0800 (PST), " wrote: On Jan 13, 11:07*am, George wrote: On 1/13/2013 10:20 AM, wrote: On Jan 13, 10:01 am, wrote: On Sun, 13 Jan 2013 05:57:42 -0600, wrote: A large store downtown has a heavy FOUR wire triplex feeding the building. *3 wires are black insulated, the other is the bare neutral. The thing that caught my attention to it, is that the 4th wire is not connected to anything. *All the triplex I've ever seen is 3 wire, two are insulated, one is bare. *That's for a standard 240V single phase system. Im thinking that this cable was intended to be for three phase wiring. Three hot, and the neutral. *Is this right? Maybe that building once had 3 phase service, or they just had that cable on hand when they wired it, and used what they had... That says "3 phase". Three hots and a neutral. Did you read the part where he says the "neutral" is not connected to anything? *Sounds like a support wire to me. The version on the newsserver I use does not mention anything about the "neutral" being unconnected. 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. That is why I said "look at the transformers" The topic is called "what is FOUR wire Triplex for? and the answer is "3 phase" 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. around pittsburgh many aerial drops use a bare wire not connected to anything but the pole and building mechanically... no electric connections.... |
#15
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What is FOUR wire Triplex for?
On Jan 13, 11:58*am, wrote:
On Sun, 13 Jan 2013 08:27:47 -0800 (PST), " wrote: On Jan 13, 11:07*am, George wrote: On 1/13/2013 10:20 AM, wrote: On Jan 13, 10:01 am, wrote: On Sun, 13 Jan 2013 05:57:42 -0600, wrote: A large store downtown has a heavy FOUR wire triplex feeding the building. *3 wires are black insulated, the other is the bare neutral. The thing that caught my attention to it, is that the 4th wire is not connected to anything. *All the triplex I've ever seen is 3 wire, two are insulated, one is bare. *That's for a standard 240V single phase system. Im thinking that this cable was intended to be for three phase wiring. Three hot, and the neutral. *Is this right? Maybe that building once had 3 phase service, or they just had that cable on hand when they wired it, and used what they had... That says "3 phase". Three hots and a neutral. Did you read the part where he says the "neutral" is not connected to anything? *Sounds like a support wire to me. The version on the newsserver I use does not mention anything about the "neutral" being unconnected. 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. That is why I said "look at the transformers" The topic is called "what is FOUR wire Triplex for? and the answer is "3 phase" 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.- Hide quoted text - - Show quoted text - 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. |
#16
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What is FOUR wire Triplex for?
On 1/13/2013 12:07 PM, bob haller wrote:
On Jan 13, 11:58 am, wrote: On Sun, 13 Jan 2013 08:27:47 -0800 (PST), " wrote: On Jan 13, 11:07 am, George wrote: On 1/13/2013 10:20 AM, wrote: On Jan 13, 10:01 am, wrote: On Sun, 13 Jan 2013 05:57:42 -0600, wrote: A large store downtown has a heavy FOUR wire triplex feeding the building. 3 wires are black insulated, the other is the bare neutral. The thing that caught my attention to it, is that the 4th wire is not connected to anything. All the triplex I've ever seen is 3 wire, two are insulated, one is bare. That's for a standard 240V single phase system. Im thinking that this cable was intended to be for three phase wiring. Three hot, and the neutral. Is this right? Maybe that building once had 3 phase service, or they just had that cable on hand when they wired it, and used what they had... That says "3 phase". Three hots and a neutral. Did you read the part where he says the "neutral" is not connected to anything? Sounds like a support wire to me. The version on the newsserver I use does not mention anything about the "neutral" being unconnected. 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. That is why I said "look at the transformers" The topic is called "what is FOUR wire Triplex for? and the answer is "3 phase" 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. around pittsburgh many aerial drops use a bare wire not connected to anything but the pole and building mechanically... no electric connections.... They must have a different take on things. Standard practice is to bond bare wires than can become energized for any reason even if unused. |
#17
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What is FOUR wire Triplex for?
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#18
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What is FOUR wire Triplex for?
On Jan 13, 12:58*pm, George wrote:
On 1/13/2013 11:27 AM, wrote: On Jan 13, 11:07 am, George wrote: On 1/13/2013 10:20 AM, wrote: On Jan 13, 10:01 am, wrote: On Sun, 13 Jan 2013 05:57:42 -0600, wrote: A large store downtown has a heavy FOUR wire triplex feeding the building. *3 wires are black insulated, the other is the bare neutral. The thing that caught my attention to it, is that the 4th wire is not connected to anything. *All the triplex I've ever seen is 3 wire, two are insulated, one is bare. *That's for a standard 240V single phase system. Im thinking that this cable was intended to be for three phase wiring. Three hot, and the neutral. *Is this right? Maybe that building once had 3 phase service, or they just had that cable on hand when they wired it, and used what they had... That says "3 phase". Three hots and a neutral. Did you read the part where he says the "neutral" is not connected to anything? *Sounds like a support wire to me. The version on the newsserver I use does not mention anything about the "neutral" being unconnected. 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. It must have been the other "trader" who argued the point that it was the neutral...- Hide quoted text - - Show quoted text - Now you're adding to the obfuscation, implying that I argued the point that "it" was the neutral. What "it" are you refering to? The OP wrote: "3 wires are black insulated, the other is the bare neutral. " So there is an "it" and it's the OP saying it's the neutral, not me. Then he says: "the 4th wire is not connected to anything. " So we have 3+1. Now maybe YOU are a mind reader,' but it's not clear what the 4th unconnected wire he's referring to is. I took it to mean the bare wire. gfretw thinks it's 3 phase and all are actually connected. You, well, it's not clear what you think because all you seem more interested in is trying to pick apart my interpretation, which I believe is a perfectly reasonable one, because the OP was unclear on what the 4th wire is that he's referring to. |
#19
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What is FOUR wire Triplex for?
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#21
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What is FOUR wire Triplex for?
wrote:
On Sun, 13 Jan 2013 06:52:52 -0800 (PST), " wrote: On Jan 13, 6:57 am, wrote: A large store downtown has a heavy FOUR wire triplex feeding the building. 3 wires are black insulated, the other is the bare neutral. The thing that caught my attention to it, is that the 4th wire is not connected to anything. If it's not connected to anything, why are you identifying it as the neutral? You have 3 wires that are apparently current carrying conductors and one that is bare, not connected. Assuming this is overhead, ie going from the pole to the building, sounds like the bare wire is for support only and you have a 240V service, with two hots, one neutral. Yep, the bare wire is the support, but it's also the neutral. There are 3 insulated wires wrapped around the bare one, not the usual two. And yea, as another person said, it's not really TRIPLEX, because that would be 3 wires. I'm not sure what they call the 4 conductor stuff, but it's the same type of cable. The way it's connected, it's a 240V feed. So my guess is that either they had 3 phase feeding that store in the past, or else they just used the cable they had on hand when they installed it. It's been there awhile, the building is probably close to 100 years old. I noticed it because there is a deck on the building next door, and I was on the deck last week. The entrance head is probably only 12 feet up from that deck, it's easy to see the unused wire. I tend to notice stuff like that, after doing construction most of my life. Your original post is unclear. When you say the 4th wire is not connected to anything, are you referring to the bare wire? If so, then I gotta repeat the question trader4 asked: How can it be a neutral if it's not connected to anything? Furthermore, a neutral carries current and therefore must be insulated. How can you call a bare wire not connected to anything a neutral? If it's not connected it's neither a hot, a neutral or a ground. It's just a wire. If it's bare, then it wouldn't be a neutral even if it was connected to something. |
#22
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What is FOUR wire Triplex for?
On Jan 13, 7:14*pm, DerbyDad03 wrote:
wrote: On Sun, 13 Jan 2013 06:52:52 -0800 (PST), " wrote: On Jan 13, 6:57 am, wrote: A large store downtown has a heavy FOUR wire triplex feeding the building. *3 wires are black insulated, the other is the bare neutral. The thing that caught my attention to it, is that the 4th wire is not connected to anything. If it's not connected to anything, why are you identifying it as the neutral? *You have 3 wires that are apparently current carrying conductors and one that is bare, not connected. *Assuming this is overhead, ie going from the pole to the building, sounds like the bare wire is for support only and you have a 240V service, with two hots, one neutral. Yep, the bare wire is the support, but it's also the neutral. *There are 3 insulated wires wrapped around the bare one, not the usual two. *And yea, as another person said, it's not really TRIPLEX, because that would be 3 wires. *I'm not sure what they call the 4 conductor stuff, but it's the same type of cable. *The way it's connected, it's a 240V feed. *So my guess is that either they had 3 phase feeding that store in the past, or else they just used the cable they had on hand when they installed it. *It's been there awhile, the building is probably close to 100 years old. *I noticed it because there is a deck on the building next door, and I was on the deck last week. *The entrance head is probably only 12 feet up from that deck, it's easy to see the unused wire. *I tend to notice stuff like that, after doing construction most of my life. Your original post is unclear. When you say the 4th wire is not connected to anything, are you referring to the bare wire? If so, then I gotta repeat the question trader4 asked: How can it be a neutral if it's not connected to anything? Furthermore, a neutral carries current and therefore must be insulated. How can you call a bare wire not connected to anything a neutral? If it's not connected it's neither a hot, a neutral or a ground. It's just a wire. If it's bare, then it wouldn't be a neutral even if it was connected to something.- Hide quoted text - - Show quoted text - He just clarified that 4th unconnected wire is one of the insulated conductors. So, like he says, if that is what;s there, then it's apparently a 240V service that might have been 3 phase before. |
#23
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What is FOUR wire Triplex for?
On 01/13/2013 07:14 PM, DerbyDad03 wrote:
wrote: On Sun, 13 Jan 2013 06:52:52 -0800 (PST), " wrote: On Jan 13, 6:57 am, wrote: A large store downtown has a heavy FOUR wire triplex feeding the building. 3 wires are black insulated, the other is the bare neutral. The thing that caught my attention to it, is that the 4th wire is not connected to anything. If it's not connected to anything, why are you identifying it as the neutral? You have 3 wires that are apparently current carrying conductors and one that is bare, not connected. Assuming this is overhead, ie going from the pole to the building, sounds like the bare wire is for support only and you have a 240V service, with two hots, one neutral. Yep, the bare wire is the support, but it's also the neutral. There are 3 insulated wires wrapped around the bare one, not the usual two. And yea, as another person said, it's not really TRIPLEX, because that would be 3 wires. I'm not sure what they call the 4 conductor stuff, but it's the same type of cable. The way it's connected, it's a 240V feed. So my guess is that either they had 3 phase feeding that store in the past, or else they just used the cable they had on hand when they installed it. It's been there awhile, the building is probably close to 100 years old. I noticed it because there is a deck on the building next door, and I was on the deck last week. The entrance head is probably only 12 feet up from that deck, it's easy to see the unused wire. I tend to notice stuff like that, after doing construction most of my life. Your original post is unclear. When you say the 4th wire is not connected to anything, are you referring to the bare wire? If so, then I gotta repeat the question trader4 asked: How can it be a neutral if it's not connected to anything? Furthermore, a neutral carries current and therefore must be insulated. How can you call a bare wire not connected to anything a neutral? If it's not connected it's neither a hot, a neutral or a ground. It's just a wire. If it's bare, then it wouldn't be a neutral even if it was connected to something. 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. nate -- replace "roosters" with "cox" to reply. http://members.cox.net/njnagel |
#24
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What is FOUR wire Triplex for?
On Jan 14, 12:10*am, wrote:
On Sun, 13 Jan 2013 16:20:29 -0800 (PST), " wrote: He just clarified that 4th unconnected wire is one of the insulated conductors. *So, like he says, if that is what;s there, then it's apparently a 240V service that might have been 3 phase before. I would still like to see a picture. If that messenger is truly "not connected to anything" (not bonded) it is a NESC violation and a safety hazard, no lineman would allow to happen.since they are the ones who are in danger, In his second post he said that the bare was both the support and the neutral, just as you thought from the beginning. What is not connected is apparently one of the insulated conductors, though even in the new post he doesn't directly say that. But since he said the "4th wire" isn't connected, that's the only possibility left. So it sounds like it could have been a 3 phase that was later converted to 240. I bet *that when we actually look at it we find it is crimped onto the strand between poles where everything else is bonded. There won't usually be a direct connection to the transformer and maybe that was the confusion. |
#25
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What is FOUR wire Triplex for?
On Jan 13, 7:20*pm, "
wrote: On Jan 13, 7:14*pm, DerbyDad03 wrote: wrote: On Sun, 13 Jan 2013 06:52:52 -0800 (PST), " wrote: On Jan 13, 6:57 am, wrote: A large store downtown has a heavy FOUR wire triplex feeding the building. *3 wires are black insulated, the other is the bare neutral. The thing that caught my attention to it, is that the 4th wire is not connected to anything. If it's not connected to anything, why are you identifying it as the neutral? *You have 3 wires that are apparently current carrying conductors and one that is bare, not connected. *Assuming this is overhead, ie going from the pole to the building, sounds like the bare wire is for support only and you have a 240V service, with two hots, one neutral. Yep, the bare wire is the support, but it's also the neutral. *There are 3 insulated wires wrapped around the bare one, not the usual two. *And yea, as another person said, it's not really TRIPLEX, because that would be 3 wires. *I'm not sure what they call the 4 conductor stuff, but it's the same type of cable. *The way it's connected, it's a 240V feed. *So my guess is that either they had 3 phase feeding that store in the past, or else they just used the cable they had on hand when they installed it. *It's been there awhile, the building is probably close to 100 years old. *I noticed it because there is a deck on the building next door, and I was on the deck last week. *The entrance head is probably only 12 feet up from that deck, it's easy to see the unused wire. *I tend to notice stuff like that, after doing construction most of my life. Your original post is unclear. When you say the 4th wire is not connected to anything, are you referring to the bare wire? If so, then I gotta repeat the question trader4 asked: How can it be a neutral if it's not connected to anything? Furthermore, a neutral carries current and therefore must be insulated. How can you call a bare wire not connected to anything a neutral? If it's not connected it's neither a hot, a neutral or a ground. It's just a wire. If it's bare, then it wouldn't be a neutral even if it was connected to something.- Hide quoted text - - Show quoted text - He just clarified that 4th unconnected wire is one of the insulated conductors. *So, like he says, if that is what;s there, then it's apparently a 240V service that might have been 3 phase before.- Hide quoted text - - Show quoted text - I guess I'm missing where he specifically "clarified that 4th unconnected wire is one of the insulated conductors". Did I miss a post? |
#26
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What is FOUR wire Triplex for?
On Jan 14, 9:44*am, DerbyDad03 wrote:
On Jan 13, 7:20*pm, " wrote: On Jan 13, 7:14*pm, DerbyDad03 wrote: wrote: On Sun, 13 Jan 2013 06:52:52 -0800 (PST), " wrote: On Jan 13, 6:57 am, wrote: A large store downtown has a heavy FOUR wire triplex feeding the building. *3 wires are black insulated, the other is the bare neutral. The thing that caught my attention to it, is that the 4th wire is not connected to anything. If it's not connected to anything, why are you identifying it as the neutral? *You have 3 wires that are apparently current carrying conductors and one that is bare, not connected. *Assuming this is overhead, ie going from the pole to the building, sounds like the bare wire is for support only and you have a 240V service, with two hots, one neutral. Yep, the bare wire is the support, but it's also the neutral. *There are 3 insulated wires wrapped around the bare one, not the usual two. *And yea, as another person said, it's not really TRIPLEX, because that would be 3 wires. *I'm not sure what they call the 4 conductor stuff, but it's the same type of cable. *The way it's connected, it's a 240V feed.. *So my guess is that either they had 3 phase feeding that store in the past, or else they just used the cable they had on hand when they installed it. *It's been there awhile, the building is probably close to 100 years old. *I noticed it because there is a deck on the building next door, and I was on the deck last week. *The entrance head is probably only 12 feet up from that deck, it's easy to see the unused wire. *I tend to notice stuff like that, after doing construction most of my life. Your original post is unclear. When you say the 4th wire is not connected to anything, are you referring to the bare wire? If so, then I gotta repeat the question trader4 asked: How can it be a neutral if it's not connected to anything? Furthermore, a neutral carries current and therefore must be insulated. How can you call a bare wire not connected to anything a neutral? If it's not connected it's neither a hot, a neutral or a ground. It's just a wire. If it's bare, then it wouldn't be a neutral even if it was connected to something.- Hide quoted text - - Show quoted text - He just clarified that 4th unconnected wire is one of the insulated conductors. *So, like he says, if that is what;s there, then it's apparently a 240V service that might have been 3 phase before.- Hide quoted text - - Show quoted text - I guess I'm missing where he specifically "clarified that 4th unconnected wire is one of the insulated conductors". Did I miss a post?- Hide quoted text - - Show quoted text - He made two posts. In the second he said: "Yep, the bare wire is the support, but it's also the neutral. There are 3 insulated wires wrapped around the bare one, not the usual two. " If it's the neutral, then it has to be connected. The only remaining possibility is that one of the three insulated conductors is the unconnected 4th wire. |
#27
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What is FOUR wire Triplex for?
On Jan 14, 10:17*am, "
wrote: On Jan 14, 9:44*am, DerbyDad03 wrote: On Jan 13, 7:20*pm, " wrote: On Jan 13, 7:14*pm, DerbyDad03 wrote: wrote: On Sun, 13 Jan 2013 06:52:52 -0800 (PST), " wrote: On Jan 13, 6:57 am, wrote: A large store downtown has a heavy FOUR wire triplex feeding the building. *3 wires are black insulated, the other is the bare neutral. The thing that caught my attention to it, is that the 4th wire is not connected to anything. If it's not connected to anything, why are you identifying it as the neutral? *You have 3 wires that are apparently current carrying conductors and one that is bare, not connected. *Assuming this is overhead, ie going from the pole to the building, sounds like the bare wire is for support only and you have a 240V service, with two hots, one neutral. Yep, the bare wire is the support, but it's also the neutral. *There are 3 insulated wires wrapped around the bare one, not the usual two. *And yea, as another person said, it's not really TRIPLEX, because that would be 3 wires. *I'm not sure what they call the 4 conductor stuff, but it's the same type of cable. *The way it's connected, it's a 240V feed. *So my guess is that either they had 3 phase feeding that store in the past, or else they just used the cable they had on hand when they installed it. *It's been there awhile, the building is probably close to 100 years old. *I noticed it because there is a deck on the building next door, and I was on the deck last week. *The entrance head is probably only 12 feet up from that deck, it's easy to see the unused wire. *I tend to notice stuff like that, after doing construction most of my life. Your original post is unclear. When you say the 4th wire is not connected to anything, are you referring to the bare wire? If so, then I gotta repeat the question trader4 asked: How can it be a neutral if it's not connected to anything? Furthermore, a neutral carries current and therefore must be insulated. How can you call a bare wire not connected to anything a neutral? If it's not connected it's neither a hot, a neutral or a ground. It's just a wire. If it's bare, then it wouldn't be a neutral even if it was connected to something.- Hide quoted text - - Show quoted text - He just clarified that 4th unconnected wire is one of the insulated conductors. *So, like he says, if that is what;s there, then it's apparently a 240V service that might have been 3 phase before.- Hide quoted text - - Show quoted text - I guess I'm missing where he specifically "clarified that 4th unconnected wire is one of the insulated conductors". Did I miss a post?- Hide quoted text - - Show quoted text - He made two posts. *In the second he said: "Yep, the bare wire is the support, but it's also the neutral. There are *3 insulated wires wrapped around the bare one, *not the usual two. " If it's the neutral, then it has to be connected. *The only remaining possibility is that one of the three insulated conductors is the unconnected 4th wire.- Hide quoted text - - Show quoted text - Right, I saw that second post. We're still taking his word for it that it's the neutral. Even you said: "If it's the neutral, then it has to be connected." As long as we're still starting our sentences with "If" there's still room for confusion. I rented a house in the Outer Banks this summer and saw where there were 2 insulated wires and a bare wire coming from the pole. At first it appeared to me that the bare wire was only the support and that there as no ground (which made me curious), but closer investigation showed it to be the ground also. That was the first time I had seen a set up like that. Where's the picture (or a more detailed description) from the OP that will clarify all this? |
#28
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What is FOUR wire Triplex for?
"DerbyDad03" wrote in message ... I rented a house in the Outer Banks this summer and saw where there were 2 insulated wires and a bare wire coming from the pole. At first it appeared to me that the bare wire was only the support and that there as no ground (which made me curious), but closer investigation showed it to be the ground also. That was the first time I had seen a set up like that. Not sure what the standard is now in North Carolina,but most of the houses I have looked at that seems to be the standard. Two hot wires (insulated) and a bare wire for the neutral that also seems to be the support line. |
#29
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What is FOUR wire Triplex for?
On Jan 14, 10:40*am, DerbyDad03 wrote:
On Jan 14, 10:17*am, " wrote: On Jan 14, 9:44*am, DerbyDad03 wrote: On Jan 13, 7:20*pm, " wrote: On Jan 13, 7:14*pm, DerbyDad03 wrote: wrote: On Sun, 13 Jan 2013 06:52:52 -0800 (PST), " wrote: On Jan 13, 6:57 am, wrote: A large store downtown has a heavy FOUR wire triplex feeding the building. *3 wires are black insulated, the other is the bare neutral. The thing that caught my attention to it, is that the 4th wire is not connected to anything. If it's not connected to anything, why are you identifying it as the neutral? *You have 3 wires that are apparently current carrying conductors and one that is bare, not connected. *Assuming this is overhead, ie going from the pole to the building, sounds like the bare wire is for support only and you have a 240V service, with two hots, one neutral. Yep, the bare wire is the support, but it's also the neutral. *There are 3 insulated wires wrapped around the bare one, not the usual two. *And yea, as another person said, it's not really TRIPLEX, because that would be 3 wires. *I'm not sure what they call the 4 conductor stuff, but it's the same type of cable. *The way it's connected, it's a 240V feed. *So my guess is that either they had 3 phase feeding that store in the past, or else they just used the cable they had on hand when they installed it. *It's been there awhile, the building is probably close to 100 years old. *I noticed it because there is a deck on the building next door, and I was on the deck last week. *The entrance head is probably only 12 feet up from that deck, it's easy to see the unused wire. *I tend to notice stuff like that, after doing construction most of my life. Your original post is unclear. When you say the 4th wire is not connected to anything, are you referring to the bare wire? If so, then I gotta repeat the question trader4 asked: How can it be a neutral if it's not connected to anything? Furthermore, a neutral carries current and therefore must be insulated. How can you call a bare wire not connected to anything a neutral? If it's not connected it's neither a hot, a neutral or a ground. It's just a wire. If it's bare, then it wouldn't be a neutral even if it was connected to something.- Hide quoted text - - Show quoted text - He just clarified that 4th unconnected wire is one of the insulated conductors. *So, like he says, if that is what;s there, then it's apparently a 240V service that might have been 3 phase before.- Hide quoted text - - Show quoted text - I guess I'm missing where he specifically "clarified that 4th unconnected wire is one of the insulated conductors". Did I miss a post?- Hide quoted text - - Show quoted text - He made two posts. *In the second he said: "Yep, the bare wire is the support, but it's also the neutral. There are *3 insulated wires wrapped around the bare one, *not the usual two. " If it's the neutral, then it has to be connected. *The only remaining possibility is that one of the three insulated conductors is the unconnected 4th wire.- Hide quoted text - - Show quoted text - Right, I saw that second post. We're still taking his word for it that it's the neutral. Even you said: *"If it's the neutral, then it has to be connected." He also said that the way it's connected, ie with one of the 4 wires unconnected, it looks like a 240V service. With a 240V service, you have two hots and a neutral, all of which are connected. Yes, he didn't come right out and say that it's one of the insulated conductors that is unconnected, but it's the only interpretation that makes sense. As long as we're still starting our sentences with "If" there's still room for confusion. I rented a house in the Outer Banks this summer and saw where there were 2 insulated wires and a bare wire coming from the pole. At first it appeared to me that the bare wire was only the support and that there as no ground (which made me curious), but closer investigation showed it to be the ground also. That was the first time I had seen a set up like that. That is the classic case. It's how alll the overhead services I've seen are done. They use the base wire as both support and neutral. Where's the picture (or a more detailed description) from the OP that will clarify all this?- Hide quoted text - - Show quoted text - About 80% of this thread would have been eliminated if the description would have been clearer. How hard is it to just say "One of the 3 insulated conductors is not connected." |
#31
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What is FOUR wire Triplex for?
On Sun, 13 Jan 2013 19:28:39 -0500, Nate Nagel
wrote: 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. nate 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???? |
#32
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What is FOUR wire Triplex for?
On Sun, 13 Jan 2013 07:20:23 -0800 (PST), "
wrote: Did you read the part where he says the "neutral" is not connected to anything? Sounds like a support wire to me. I did *NOT* say that..... Learn to read for comprehension!!! |
#33
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What is FOUR wire Triplex for?
On Jan 14, 2:16*pm, wrote:
On Mon, 14 Jan 2013 00:10:46 -0500, wrote: On Sun, 13 Jan 2013 16:20:29 -0800 (PST), " wrote: He just clarified that 4th unconnected wire is one of the insulated conductors. *So, like he says, if that is what;s there, then it's apparently a 240V service that might have been 3 phase before. I would still like to see a picture. If that messenger is truly "not connected to anything" (not bonded) it is a NESC violation and a safety hazard, no lineman would allow to happen.since they are the ones who are in danger, I bet *that when we actually look at it we find it is crimped onto the strand between poles where everything else is bonded. There won't usually be a direct connection to the transformer and maybe that was the confusion. How much clearer can I make this..... One of the insulated wires is NOT connected to anything, (on either end of the cable). *It's not taped or capped in any way, it's just there doing nothing. *This might be a code violation, I'm not sure, since the wire does nothing. *I'd still think it should be capped somehow. *But if this is code, I'd think the Po Co would have capped it. The bare wire IS the neutral and is connected that way. *The other 2 insulated wires are connected in the normal manner that any 240V overhead cable would be.- Hide quoted text - - Show quoted text - As far as I can tell, this is the one and only post in which you specifically said "One of the insulated wires is NOT connected to anything". Feel free to correct me if I am wrong. In your OP you said: "A large store downtown has a heavy FOUR wire triplex feeding the building. 3 wires are black insulated, the other is the bare neutral. The thing that caught my attention to it, is that the 4th wire is not connected to anything." Since you mentioned 3 wires, and then the "other one" and then said "the 4th wire is not connected to anything" many of us followed that sequentially and assumed that the "other one" and the "4th" were one and the same. There was no way for us to know that the "4th" was one of the 3 insulated wires. In your 2nd post you said: "Yep, the bare wire is the support, but it's also the neutral. There are 3 insulated wires wrapped around the bare one, not the usual two." Once again, no mention of which of the 4 wires is not connected. You had the advantage of a visual, all we had were your words, which were not very clear. Had you referred to the "4th wire" as one of the insulated ones, as you did in this post, there would have been absoutely no confusion. e.g. "The thing that caught my attention to it, is that one of the 3 insulated wires is not connected to anything." In addition, it was not clear to us that the wire was not connected at either end. You said: "I noticed it because there is a deck on the building next door, and I was on the deck last week. The entrance head is probably only 12 feet up from that deck, it's easy to see the unused wire." From where we're sitting, all that we can envision is the end you told us about: The entrance head. You never mentioned the other end of the cable until now. |
#34
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What is FOUR wire Triplex for?
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#35
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What is FOUR wire Triplex for?
On Jan 14, 2:44*pm, wrote:
On Sun, 13 Jan 2013 19:28:39 -0500, Nate Nagel wrote: 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. nate 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. 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, elevators, etc. *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!!!! 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. |
#36
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What is FOUR wire Triplex for?
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#37
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What is FOUR wire Triplex for?
On Mon, 14 Jan 2013 13:16:34 -0600, wrote:
On Mon, 14 Jan 2013 00:10:46 -0500, wrote: On Sun, 13 Jan 2013 16:20:29 -0800 (PST), " wrote: He just clarified that 4th unconnected wire is one of the insulated conductors. So, like he says, if that is what;s there, then it's apparently a 240V service that might have been 3 phase before. I would still like to see a picture. If that messenger is truly "not connected to anything" (not bonded) it is a NESC violation and a safety hazard, no lineman would allow to happen.since they are the ones who are in danger, I bet that when we actually look at it we find it is crimped onto the strand between poles where everything else is bonded. There won't usually be a direct connection to the transformer and maybe that was the confusion. How much clearer can I make this..... One of the insulated wires is NOT connected to anything, (on either end of the cable). It's not taped or capped in any way, it's just there doing nothing. This might be a code violation, I'm not sure, since the wire does nothing. I'd still think it should be capped somehow. But if this is code, I'd think the Po Co would have capped it. The bare wire IS the neutral and is connected that way. The other 2 insulated wires are connected in the normal manner that any 240V overhead cable would be. Then you have a 3 phase supply cable repurposed, and the unused insulated conductor SHOULD be grounded at the(preferably) supply end. |
#38
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What is FOUR wire Triplex for?
On Mon, 14 Jan 2013 13:14:33 -0800 (PST), "
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, elevators, etc. In that case, then it may have been 3 phase in the past adn was backed down to single phase since then. *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!!!! 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. Yep!!! |
#39
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What is FOUR wire Triplex for?
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#40
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What is FOUR wire Triplex for?
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