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#1
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Best way to pull heavy wire in thin wall
I need to pull 100 feet of service wire...two 2awg...one 4awg
neutral...and one 6awg ground wire through 100 feet of 1 1/2 inch thin wall. The heaviest I have ever pulled is 12 awg What's the best way to pull this through...mostly straight run with a 90 degree up/down of about 8 feet at each end. I have a number of regular fish lines...but is there a "heavy duty" fish line for this type of work ? Any other pointers...tips....will be really appreciated ! Thanks, Tim |
#2
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Best way to pull heavy wire in thin wall
Fish a heavier rope through the wall and use that to pull while you have
someone push from the other end. If your opening is really small you may need to do all the wire at once. The first one will be the easiest and it will get increasingly tight as you progress. Good luck. "tr" wrote in message oups.com... I need to pull 100 feet of service wire...two 2awg...one 4awg neutral...and one 6awg ground wire through 100 feet of 1 1/2 inch thin wall. The heaviest I have ever pulled is 12 awg What's the best way to pull this through...mostly straight run with a 90 degree up/down of about 8 feet at each end. I have a number of regular fish lines...but is there a "heavy duty" fish line for this type of work ? Any other pointers...tips....will be really appreciated ! Thanks, Tim |
#3
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Best way to pull heavy wire in thin wall
If it's possible, lay out the cables and assemble the conduit over the
bundle, piece by piece. I have a number of regular fish lines...but is there a "heavy duty" fish line for this type of work ? Any other pointers...tips....will be really appreciated ! Thanks, Tim |
#4
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Best way to pull heavy wire in thin wall
Another way to pull the lube through is to create a home made "pig" just put
the shop vac on one end and have it suck some small rags through the pipe covered in lube. wrote in message ... On 23 May 2007 07:19:42 -0700, dpb wrote: Have you done the capacity calculation? I just did the calc and he could actually use 1.25" at 24.8% fill so 1.5 is plernty. I agree with the push/pull theory and use the pulling lube Get the real thing, not something you have in the garage. You can pre-lub the pipe by squirting lub in and sucking it through with a vaccum |
#5
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Best way to pull heavy wire in thin wall
I vote no to this idea.
On Wed, 23 May 2007 12:28:16 -0500, Robert Barr wrote: If it's possible, lay out the cables and assemble the conduit over the bundle, piece by piece. I have a number of regular fish lines...but is there a "heavy duty" fish line for this type of work ? Any other pointers...tips....will be really appreciated ! Thanks, Tim |
#6
Posted to alt.home.repair
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Best way to pull heavy wire in thin wall
"tr" wrote in message oups.com... I need to pull 100 feet of service wire...two 2awg...one 4awg neutral...and one 6awg ground wire through 100 feet of 1 1/2 inch thin wall. The heaviest I have ever pulled is 12 awg What's the best way to pull this through...mostly straight run with a 90 degree up/down of about 8 feet at each end. I have a number of regular fish lines...but is there a "heavy duty" fish line for this type of work ? Any other pointers...tips....will be really appreciated ! Thanks, Tim Some contractor rental yards rent power and hand crank pullers. Make sure that your conduit is well strapped especially at the ends. If you have a bunch of friends you should have two guys feeding the wire into the pipe. One guy who actually does the pushing and the other guy who pulls up the slack and keeps the conductors straight. You don't want the wires to get twisted. At the pulling end two guys should suffice. The trick is to get the push end coordinated with the pull end Have the pusher yell "Pull" when he is ready and just pull a certain amount at a time. Don't try to pull 100' in one motion. Do it in steps; maybe 2' - 3' at a time. Some pulls will be better than others. The pusher should also be applying lube as the wire goes into the pipe. You should have at least a gallon of lube for this. Strip the ends of the wire back about a foot. Cut off the outer strands of the #4 and #2 conductors to make them smaller. Use a 1/2" or 5/8" pulling rope with a bowline knot at the end. Pull the rope through the conduit. You can use a shop vac with a Home Depot bag (Or similar) tied to lightweight string to put a pulling string into the pipe. I call this the parachute method. This may not work too well with EMT since it leaks air. Use the pulling string to pull your rope into the pipe. Bend 6" of the stripped wires through the bowline knot. Squeeze them tight and wrap them with steel tie wire in several places. Keep the tie wire as compact as possible and twist the ends of the tie wire to make it tight. Bend the twists away from the direction of the pull. Wrap this up with vinyl electrical tape. If you don't have a bunch of friends you could probably get away with two people and a come-along. The come-along will need to be secured to something solid at one end in a straight path to the conduit end. Put a slip knot in the rope, have someone feed while you crank the come-along. When the cable is used up, undo the slip knot, pull the cable back out and repeat with a new slip knot. Don't use a car or truck for pulling wire. You need to be able to feel the pull. If you are pulling with a car and the wire gets jammed you can rip the conduit and whatever it is attached to right off. |
#7
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Best way to pull heavy wire in thin wall
I have a number of regular fish lines...but is there a "heavy duty" fish line for this type of work ? Any other pointers...tips....will be really appreciated ! Thanks, Tim Robert Barr wrote: If it's possible, lay out the cables and assemble the conduit over the bundle, piece by piece. That is a specifically forbidden practice in the US NEC. Attempting to install raceway over the conductors inevitably leads to insulation damage. -- Tom Horne "This alternating current stuff is just a fad. It is much too dangerous for general use." Thomas Alva Edison 300.18 Raceway Installations. (A) Complete Runs. Raceways, other than busways or exposed raceways having hinged or removable covers, shall be installed complete between outlet, junction, or splicing points prior to the installation of conductors. Where required to facilitate the installation of utilization equipment, the raceway shall be permitted to be initially installed without a terminating connection at the equipment. Prewired raceway assemblies shall be permitted only where specifically permitted in this Code for the applicable wiring method. |
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