I finally saw it

[byourdesky]

After always joking to people to make sure they use the "black phase" tape, I finally saw an install today in which the previous people had actually phased the wire with "black phase tape". Hahaha......bet it was a greenie

 

[chris kennedy]

Black phase tape is used in the event the red, blue or white is lost during the pull.

 

[peter d]

After always joking to people to make sure they use the "black phase" tape, I finally saw an install today in which the previous people had actually phased the wire with "black phase tape". Hahaha......bet it was a greenie

When pulling two black wires, say for a 208/240 volt single phase circuit, you can identify the other wire with black tape. Not that you really need to, but if you're so inclined you can do it that way.

 

[K8MHZ]

Black phase tape is used in the event the red, blue or white is lost during the pull.

Bingo!

Standard practice here.

 

[Karl H]

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?

 

[480sparky]

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?

So instead of taking a minute or two to tape a three-phase set of blacks, you'd rather spend a half hour ohming them out once they're installed?

 

[George Stolz]

When installing a three phase circuit , the only wires you need to "phase" are the neutral/grounded conductor,and Grounding conductor.

Not always true.

210.5(C) Ungrounded Conductors. Where the premises wiring system has branch circuits supplied from more than one nominal voltage system, each ungrounded conductor of a branch circuit shall be identified by phase or line and system at all termination, connection, and splice points. The means of identification shall be permitted to be by separate color coding, marking tape, tagging, or other approved means. The method utilized for conductors originating within each branch-circuit panelboard or similar branch circuit distribution equipment shall be documented in a manner that is readily available or shall be permanently posted at each branch circuit panelboard or similar branch circuit distribution equipment.

 

[Karl H]

So instead of taking a minute or two to tape a three-phase set of blacks, you'd rather spend a half hour ohming them out once they're installed?

Why would you need to OHM ungrounded conductors? When rotation isn't a

issue? It doesn't matter if A phase in a transformer is C phase in a panel.

If rotation isn't an issue.

 

[George Stolz]

Why would you need to OHM ungrounded conductors?

Parallel runs. To ensure separate multiwire branch circuits are kept separate. Dare I say "workmanship" and "future troubleshooting"?

 

[SEO]

So instead of taking a minute or two to tape a three-phase set of blacks, you'd rather spend a half hour ohming them out once they're installed?

Not me but if it's indoor work probably a lot of guys would.:roll: It's cold here.

 

[480sparky]

Why would you need to OHM ungrounded conductors? When rotation isn't a

issue? It doesn't matter if A phase in a transformer is C phase in a panel.

If rotation isn't an issue.

So a panel can be made up as A-C-B, C-B-A or B-A-C?

 

[Karl H]

Parallel runs. To ensure separate multiwire branch circuits are kept separate. Dare I say "workmanship" and "future troubleshooting"?

Ok when it's Parallel I can see that. Once again I didn't state the situation.

4 wire 3 phase. I MUST state the situation, repeat to myself I Must

State The Situation, Must State... Sorry guys I'm going to get better when it

comes to communication. Must be clear.... Must be clear...

 

[George Stolz]

I Must

State The Situation, Must State..

Can you state it

without

using so much

space?

 

[Karl H]

So a panel can be made up as A-C-B, C-B-A or B-A-C?

Yes, It dosent matter. Does it matter if B is on a A in a single phase Panel?

Do the electrons get confused if there are A phase electrons landed on B?

 

[Karl H]

Can you state it

without

using so much

space?

No my eyesight is bad. If I must crowd my words I will. Sorry but you will

be old one day too.

 

[iaov]

So a panel can be made up as A-C-B, C-B-A or B-A-C?

Probably not too much of a problem but I wouldn't like it too much.

 

[Karl H]

Not always true.

I mention this in my post.

 

[George Stolz]

Yes, It dosent matter. Does it matter if B is on a A in a single phase Panel?

Do the electrons get confused if there are A phase electrons landed on B?

I don't see that as being an issue, but in a larger setting the phase balancing would become an issue with engineered prints, IMO.

 

[Karl H]

I don't see that as being an issue, but in a larger setting the phase balancing would become an issue with engineered prints, IMO.

It really dosen't matter. Load is load. If A is B,B is C,C is A. and you balance

as A,B,C it doesn't matter.

 

[Volta]

The order may not always be crucial to the flow of electrons, but for three phase busbars, it is code. 408.3(E).