Back Breaking Pull?

[don_resqcapt19]

Re: Back Breaking Pull?

Wes,

If that 8' section were removed and added after the main pull, it would indeed be a "short section".

Using that logic, each length of conduit is a short section and you could lay the wire on the ground and slide the "short sections" of conduit over the wire.

Instead try 230.32

That section applies to installations where the conductors are directly buried, not to conductors that are installed in a raceway system.

I do not believe that because you have elected to run conduit all the way between the two points this is altered.

It most certainly does. It is no longer a short section of raceway used to protect the conductors, it is a raceway system and compliance with 300.18 is required.
Don

 

[Wes G]

Re: Back Breaking Pull?

Originally posted by don_resqcapt19:
Wes,

If that 8' section were removed and added after the main pull, it would indeed be a "short section".

Using that logic, each length of conduit is a short section and you could lay the wire on the ground and slide the "short sections" of conduit over the wire.

Don, correct me if I'm wrong, but isnt that called sleeving?

On previuos occations we had used a Greenlee wire pulling shieve mounted to the pole above the conduit but found this to be harder and more prone to letting wires cross over each other.


___________________
Wes Gerrans
Instructor
Northwest Kansas technical College
Goodland, KS

 

[don_resqcapt19]

Re: Back Breaking Pull?

What if I leave a 6" gap between the piece of condit between the piece of conduit I use to protect the wires emerging from the ground and the sleeve I used to protect the wires under ground would that be acceptable as you see it?

If it is an underground raceway, then my answer is no. This question is not about what works and can be done in the field, but the question is about what the code requires. What is done and what works, is not always the same as what the code requires.
Don

[ November 12, 2005, 10:42 PM: Message edited by: don_resqcapt19 ]

 

[hardworkingstiff]

Re: Back Breaking Pull?

I may be showing my inexperience, but I would think you could mount a tugger on the pole above the conduit. The pull would not be difficult at all. The most difficult part of the pull would be the feeding.

I think you could use an outdoor sizzor lift to get up the pole with the tugger.

Now, if you didn't plan this out prior to accepting the job, well..... that's a different subject.

 

[Wes G]

Re: Back Breaking Pull?

[/QUOTE]If it is an underground raceway, then my answer is no. This question is not about what works and can be done in the field, but the question is about what the code requires. What is done and what works, is not always the same as what the code requires.
Don [/QB][/QUOTE]


Thanks, Don. While I still disagree with you in this case as to what the code requires, your point is well taken.

Before hanging up on this one, I would make note of Mike Holt's comment in his 2005 Code Changes book, "New exception clarifies when raceways aren't required to be complete before the installation of circuit conductors." Also note from Stallcups Illustrated Code Changes, 2005, that the short section he uses to illustrate the point is now attached to another raceway.
An interesting question regarding what constitutes a complete Raceway system is raised by this and the discussion we've had. Is it a complete raceway system if it doesn't terminate in an enclosure on both ends? Until we have a definition for that, there is room for more of these debates.


___________________
Wes Gerrans
Instructor
Northwest Kansas technical College
Goodland, KS

 

[Wes G]

Re: Back Breaking Pull?

Originally posted by hardworkingstiff:
I would think you could mount a tugger on the pole above the conduit. The pull would not be difficult at all. The most difficult part of the pull would be the feeding.

I think you could use an outdoor sizzor lift to get up the pole with the tugger.

Now, if you didn't plan this out prior to accepting the job, well..... that's a different subject.

Good point. After attaching the tugger you could than hang a pulling sheave from the scissor for the pull. As you say the hardest part is still the feeding and preventing wire crossovers.


___________________
Wes Gerrans
Instructor
Northwest Kansas technical College
Goodland, KS