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Q: When pulling service wire through underground conduit?
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How do you pull wire in conduit?

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.


Why 2 different phase wire are not supposed to pass through same conduit?

According to the wording ,2 different phase wires "can" run through the same conduit. Not only can they, but if they are part of the same circuit they must. And in cases where conductors are paralleled, meaning more than one conductor per phase as is common in commercial and industrial installations, you put one conductor of each phase and a neutral, if one exists, and a ground in each conduit. Not doing so, meaning to put all of one phase in one conduit, causes a voltage to be induced into the conduit and a tremendous amount of heat builds up. Even when using pvc or other non-metallic conduit, somewhere along the way you have something metallic and have the same problem. To simplify, you must put all conductors associated with the same circuit in the same conduit.


What is PVC 20mm conduit?

PVC is a material, Poly vinyl chloride - a type of plastic. 20 mm is a size, probably inner diameter of a cylindrical pipe. Conduit means that it's used to run something like other wires, or a thinner pipe, through.


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.


Are ground wires required in steel or aluminum flex conduits?

Yes, any flexible conduit that has live wires drawn into it must have a ground wire also installed with the "hot" conductors. The reasoning behind this rule is that the flex in the conduit is coiled and has a long length to it. The continuation of the grounding medium through the tightness of the conduit connectors to the flex was not considered a properly secured grounding system so to overcome this weakness in the grounding system, a ground wire now has to be installed.

Related questions

How do you pull wire in conduit?

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.


If you need to upgrade your home service from 150A to 250A can you run the lines through the attic using a conduit?

The short answer is YES and Don


What happens when you drop a magnetic object through a metal conduit?

It will induce a slight (as in negligible and unnoticeable) current in the conduit.


What is a good sentence with conduit?

The electrician ran cables through the conduit to conect our new fridge freezer to the mains.


What is volcanic conduit?

Generically a conduit is a passageway (in the volume of something else), along which something can pass, connecting two regions together. In terms of a Volcano it is a section of its plumbing along which magma can flow. It can be a pipe connecting a magma chamber to the volcanoes throat, or a planar dyke feeding a volcanic fissure.


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.


How would you ensure that underground services pipes cables etc will not be damaged by planting or root growth?

The best way would be to use rigid PVC conduit for electrical installations. Glue the joints well so that no water can penetrate. As an additional protection the conduit can be embedded in concrete. If this route is chosen, have at least three inches of concrete surround the conduit. Using cinder building blocks on their side and feeding the conduit through them will stop the conduit from floating to the surface when the concrete is poured. Using a form along side the cinder block's ends will save on concrete. The forms can be stripped when the concrete sets up or can be left in place and just buried.


What size wiring 10-2 12-2 or 14-2 is needed to run 175 ft of underground wiring to a church sign?

Depends on how much wattage the load on this circuit will be. Definately not 14/2. Make sure to run the wire through conduit or use dedicated underground wire, and put this on a GFIC circuit.


What is the main function of conduit boxes?

Connection cords run through a conduit box so a to prevent accidental electrocution. Running the cords through the box ensures that the connections function properly and are protected as well.


Where can one purchase an aluminum conduit?

One could purchase aluminum conduit at home improvement retailers such as Home Depot, Lowe's or Rona. One could also order it through a wholesaler such as American Conduit.


Where is the service entrance on professor layton lost future?

The service entrance is near the facility where the "future layton" resides. First go to the North Bank after crossing through the underground tunnel. There you must go through a door into the "Side Of the Facility". Next go down the ladder and you will enter the "Service Entrance"


Can a male person passed urine normally through his penis after ileal conduit surgery?

No. The created pouch is drained through a stoma.