peter d
Senior Member
- Location
- New England
How is life in Vista these days? Are you enjoying the 70 degree weather while we all freeze?
I finally saw it
- Thread starter byourdesky
- Start date
- Status
How is life in Vista these days? Are you enjoying the 70 degree weather while we all freeze?
Karl H
Senior Member
- Location
- San Diego,CA
Yes, Blk,Red,Blu. A,B,C,. Prove B isn't A and why that would be important?
Is the generator always pulsing A phase at your panel? Would yor system not work if A phase was actually B phase? This is nothing but an electricians
habit of trying to keep things in order. I'm cool with thst idea.
Karl H
Senior Member
- Location
- San Diego,CA
Peter, it's cold here. We are talking 40's here. It may be the end of all
Human kind as we know it.
byourdesky
Member
- Location
- vista,ca
Peter, it's cold here. We are talking 40's here. It may be the end of all
Human kind as we know it.
I even wore a sweater for awhile and put my hands in my pockets when I was outside
byourdesky
Member
- Location
- vista,ca
In that case I could see why it was there
pbeasley
Senior Member
- Location
- Orange County, CA (for now)
When installing a three phase circuit , the only wires you need to "phase"
are the neutral/grounded conductor,and Grounding conductor. The grounding
conductor is very easily identified unless you have increased the ungrounded
conductors to adjust for VD per Art.250.122. Other than re-feeding an
existing motor load,etc to keep the propper rotation, or to indentify two
voltage systems, Phase tape isn't needed IMO. Yes grounding conductors
#6 and smaller must be Green for the entire length. To phase a Black
ungrounded conductor with Black "phase" tape IMO is funny. I love my job
and to laugh while I do my job ,makes it even more fun. Is that wrong?
Just because rotation isn't an issue now, doesn't mean it won't be in the future.... been there, suffered that....
quogueelectric
Senior Member
- Location
- new york
Remember what happened to the dinosaurs. According to the history chanel we are due in 2012 late.
When installing a three phase circuit , the only wires you need to "phase" are the neutral/grounded conductor,and Grounding conductor. The grounding conductor is very easily identified unless you have increased the ungrounded conductors to adjust for VD per Art.250.122. Other than re-feeding an existing motor load,etc to keep the propper rotation, or to indentify two voltage systems, Phase tape isn't needed IMO. Yes grounding conductors #6 and smaller must be Green for the entire length. To phase a Black ungrounded conductor with Black "phase" tape IMO is funny. I love my job and to laugh while I do my job ,makes it even more fun. Is that wrong?
Karl, I had begun to think you were one of the more level heads posting here. Now you really let me down. Phase tape before you pull, megger after install and before terminating. That is proof to you and to the client you did your work properly and then checked it. It is no fun running into silly little problems while trouble shooting.
- Location
- Massachusetts
I ring them out anyway and now I have started megging them as well. Particularly with parallel sets, I don't trust the markings even if I did them myself.
But that said ............ how would I loose one of the other markings unless I was being very cheep with the tape. I can't say I have ever lost a phase tape marking.
Now if I am using brady markers to identify wires for a pull I always put the number on twice in case one falls off. :smile:
- Location
- Massachusetts
I have been running work for about 25 years and really see little advantage to marking heavy conductors prior to pulling. To each their own but please don't act like that is unprofessional.
Generally I will pull heavy conductors unmarked, land them in the neatest way possible at the hardest end, then ring them out and mark them.
Recently I bought a megga and now my order of things may change a bit but I will still be marking after pulling.
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- Location
- Illinois
- Occupation
- retired electrician
I can see it happening with SIM Pull conductors...the tape does not stick very well.
- Location
- Massachusetts
That makes sense, I have not been using SIM pull yet.
Karl H
Senior Member
- Location
- San Diego,CA
Thanks to George Stolz, I don't need to double space anymore,Thank You
George. Sometimes when I'm reading multiple topics I get "function" and
"procedure" confused. This discussion was about "common procedure",when
pulling in conductors. My train of thought was focused on function. A phase
from a transformer doesn't have to land on A phase in a panel nothing "Bad"
will happen and the system will work fine.
This is my procedure,
1. The first conductor rolled out for a pull is phased white or grey. This is
done because, one time awhile ago during the meg there was a
miscommunication that lead to the neutral being terminated on B phase.
That was real ugly. I learned from that mistake,so the first conductor is
phased white before any othe conductors are rolled out.
2.The other three ungrounded conductors are not phased with tape.
3. Unless this is a 250.122 situation the grounding conductor is not phased.
If it is 6 or smaller it is the color green for the entire length from the factory
anyway. If it 4 or larger even with my public school education I can usually
tell it's not a neutral or ungrounded conductor.
4. Pull the feeders in.
5. Before termination I do a insulation failure test "Meg",then the conductors
are phased depending on voltage. Black (no tape),red, blue, Black (no tape),
orange,blue. Or Brown, orange,yellow. The conductors are terminated with
a torque wrench in that order, Top to bottom,left to right.
The only conductor that I feel is important to phase is the neutral, before
the pull. If there were a miscommunication during the "Meg" process while
phasing the ungrounded conductors, I really wouldn't care, because it won't
blow up when the switch is closed. The system will work fine.
I was thinking "Function" while you guys were talking "Procedure". Why,
480Sparky's mention of Ohm the conductors didn't click in my head, I have
no clue,It at the time just didn't.
The OP was saying phasing a black conductor with black tape is the exact
thing as phasing a green conductor with green tape. Which is really funny to
me and to the OP but, no one else I guess.
George. Sometimes when I'm reading multiple topics I get "function" and
"procedure" confused. This discussion was about "common procedure",when
pulling in conductors. My train of thought was focused on function. A phase
from a transformer doesn't have to land on A phase in a panel nothing "Bad"
will happen and the system will work fine.
This is my procedure,
1. The first conductor rolled out for a pull is phased white or grey. This is
done because, one time awhile ago during the meg there was a
miscommunication that lead to the neutral being terminated on B phase.
That was real ugly. I learned from that mistake,so the first conductor is
phased white before any othe conductors are rolled out.
2.The other three ungrounded conductors are not phased with tape.
3. Unless this is a 250.122 situation the grounding conductor is not phased.
If it is 6 or smaller it is the color green for the entire length from the factory
anyway. If it 4 or larger even with my public school education I can usually
tell it's not a neutral or ungrounded conductor.
4. Pull the feeders in.
5. Before termination I do a insulation failure test "Meg",then the conductors
are phased depending on voltage. Black (no tape),red, blue, Black (no tape),
orange,blue. Or Brown, orange,yellow. The conductors are terminated with
a torque wrench in that order, Top to bottom,left to right.
The only conductor that I feel is important to phase is the neutral, before
the pull. If there were a miscommunication during the "Meg" process while
phasing the ungrounded conductors, I really wouldn't care, because it won't
blow up when the switch is closed. The system will work fine.
I was thinking "Function" while you guys were talking "Procedure". Why,
480Sparky's mention of Ohm the conductors didn't click in my head, I have
no clue,It at the time just didn't.
The OP was saying phasing a black conductor with black tape is the exact
thing as phasing a green conductor with green tape. Which is really funny to
me and to the OP but, no one else I guess.
Karl H
Senior Member
- Location
- San Diego,CA
I mentioned 408.3(E) in my last post with out quoting the ART#.
Top to bottom, Left to right. Higher voltage to ground (Orange)
shall be B phase. That's not a direct quote from the NEC. I am 40
steps from my code books. So that is from memory. I hope I'm not wrong.
- Status