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There are both industrial and home owner cable pulling techniques. The former may involve heavy equipment and cable greasing and many people. Pulling cable on a small scale involves a snake and sometimes a pull cord. A snake is a coiled metal strip that you push through the conduit. When it comes out the other end or to a pull box you connect the wire and pull it back through the conduit. If more wire might be pulled later, also attach a pull cord so it will be left behind in the conduit for future use.
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How is wire pulled into a conduit of 100 feet?
A 100 foot fish tape and wire lubrication will be needed to make this wire pull.
What size conduit is correct for 10-3 gauge wire?
You can pull 10 #3 gauge wires in a 2 1/2" conduit.
Why shouldn't you pull on electric cables?
The chance of causing a break in the wire, or damage to the wire covering or coating. Also, it is not that you shouldn't pull on cables as in running electrical conduit in a building, it is common that the electrician has to "Pull"the wires through the conduit. The electrician generally knows how hard he can pull without damaging or chafing the wires.
How many 10 stranded conductors can you pull in a 1 inch conduit?
Need to know the wire # size to compute wire fill in conduits
When is it permissible to wire tie a wire to a conduit?
What kind of wire? If it's a power wire, why is the place wired with conduit? Commercial buildings must put all power wiring in conduit, so if you're planning to run romex in a commercial building, the answer would be "no", it's not permissible. If it's data wire, note that there may be some "crossover" interference if the data wire follows a power wire for very much distance. It's usually not a problem to cross a conduit and tie to it, but it's generally recommended that you not tie data cable to conduit.
How is wire pulled into a conduit of 100 feet?
A 100 foot fish tape and wire lubrication will be needed to make this wire pull.
What size conduit is correct for 10-3 gauge wire?
You can pull 10 #3 gauge wires in a 2 1/2" conduit.
Why shouldn't you pull on electric cables?
The chance of causing a break in the wire, or damage to the wire covering or coating. Also, it is not that you shouldn't pull on cables as in running electrical conduit in a building, it is common that the electrician has to "Pull"the wires through the conduit. The electrician generally knows how hard he can pull without damaging or chafing the wires.
How many 10 stranded conductors can you pull in a 1 inch conduit?
Need to know the wire # size to compute wire fill in conduits
Do you have to break the ground wire at a pull box and bond it to the box?
When you refer to a pull box you have to be talking about a conduit system. In a metallic system, no don't have to ground pull boxes. By the fact that it is a metallic system the conduit and associated boxes are already grounded by the connection to the distribution panel. In a PVC conduit system a ground wire has to be pulled so that the load device has a return ground wire to trip the breaker on a ground fault. Pull boxes in a PVC system don't have to be grounded just the last junction box at the load.
When do you use a conduit bushing?
A conduit bushing is used when a conduit is terminated in a junction box or enclosure. Its purpose is to provide a smooth rounded surface so that when the wire is pulled into the conduit the insulation on the wire will not be damaged.
When is it permissible to wire tie a wire to a conduit?
What kind of wire? If it's a power wire, why is the place wired with conduit? Commercial buildings must put all power wiring in conduit, so if you're planning to run romex in a commercial building, the answer would be "no", it's not permissible. If it's data wire, note that there may be some "crossover" interference if the data wire follows a power wire for very much distance. It's usually not a problem to cross a conduit and tie to it, but it's generally recommended that you not tie data cable to conduit.
Does triplex wire need to be in conduit under a house?
Yes. If they are single wires they need to be in a conduit.
What is meant by pull back effect when pulling in electrical cables in conduit?
what is meant by pull back effect when pulling in electric cables in conduit
How do you get a power cable through a hose?
You should probably use electrical conduit approved for this purpose, and not hose - anything else is unsafe and will fail. To get the cable through the conduit: Find a styrofoam ball, ping-pong ball, or similar very lightweight ball just slightly smaller than the inside diameter of the conduit. Push the end of a piece of lightweight nylon twine (longer than your conduit) through the ball and tie it in a knot. On one end of the conduit, attach the hose of a shop-vac - and at the other end, drop in your ball. The vacuum will suck the ball and twine through the conduit. Retrieve the ball. Then use the twine to pull your line through the conduit (if small wire), or to pull a length of stronger rope or cable through before attaching it your wire.
What is conduit wirimg?
Conduit wiring is simply wiring that you find in a conduit. Typically, a conduit is a small round tube, usually metal but sometimes plastic, that carries wires from one area to the next. Wire has a tenancy to sag and get tangled and such when it is laid out in long distances. The conduit serves to protect the wire and to ensure it stays linear and it stays in place.
How many bends in a conduit run would be required before the use of a pull box?
There has to be a pull box between every four quarter bends in a conduit run.
