Long conduit cable runs don’t have to be such a nuisance. Whether your goal is to install electrical wires for power or conduit Ethernet cables for networking, the skill of correctly pulling cables guarantees good results, saves time, and eliminates damage.
By the end of this article, you will become a pro at conquering those lengthy runs. Gear up to learn the practical tips that work for long conduit cable runs.
Start Smart: The Blueprint for a Smooth Pull
Whether it’s pulling cable or any other wiring system, jumping blind is a huge mistake. A little planning can go a long way and serve as a time-saver.
Create an entire route before pulling cables – count every bend, box, and coupling. The total bend between access locations should not exceed 360 degrees. Going beyond this means inviting trouble.
Choose the Right Wire: What Kind of Wire to Run in Conduit?
Understanding what kind of wire to run in Conduit can save you from making costly mistakes.
For standard power, THHN or THWN wire is the preferred option for electrical work, as it is specifically designed for conduit that is resistant to heat and moisture. These conductors are slippery, single wires that slide smoothly past each other with varying degrees of flexibility and rigidity.
Conduit Ethernet cable is the best choice for data or networking installations. Pulling cables is much smoother because the cable is made to move more easily than the textured ones.
Tip: Select wires with a "W" rating, which indicates they are suitable for use in damp environments.
The Main Event: How to Pull Wire Through Conduit like a Pro
Pulling wire through conduit can be done easily with a few basic tools and supplies. Pulling cables can be a challenge due to bends and friction with other wires; lubricating wires is non-negotiable. These lubricants are slimy, soapy foam or non-conductive gels that coat the wire, making it slick. The best practice is to apply lubricant generously at the start of the pull, as the interior of the conduit will automatically be covered along its length as you pull.
Pulling cables is another art. Instead of jerking, pull with a constant, steady tension. Use junction boxes to divide large cable lengths into smaller parts for intermediate pull points.
Wound inside a wheel-shaped spool, a fish tape is a long, flat wire. It comes in different lengths, starting from 25 feet. The most economical fish tape wires are designed with nylon without a spool. Nonetheless, a steel fish tape is your enemy if you are pulling cables over 50 feet. Upgrade to mule tape for pulling wire. It’s a game-changer in preventing tears. These mule tapes for pulling wires are stronger, lightweight, and capable of withstanding more tension.
Tips on How to Pull Wire through Conduit
Pulling cables by yourself can be time-consuming and difficult. Hence, it's best to do it with a professional or a friend.
· Avoid using damaged conduits or those with sharp bends, as they can be a nuisance in pulling cables.
· Pulling wire using fish tape/mule tape, lubricants, and fishing weights makes the process smooth.
· Always keep the wire straight when you are pulling it into a conduit.
Working with Flex Conduit Coupling
Flex conduit coupling requires specific installation methods. Always use liquid-tight connectors for damp areas and standard couplings for dry ones. Expose the flex conduit enough for coupling insertion. This minimizes the risk of damaging internal wires when working with flex conduit coupling. Extreme bends can create tension, so be meticulous when pulling cables through flex conduits. Always remember that flex has higher friction than rigid conduit with increased pulling resistance – apply the lubricant generously.
Planning Long Distance Pulls
Pulling cables over long distances requires strategic planning. Deploy pull boxes at 100 feet for runs with bends or 150-200 feet for straight runs. In this way, you break pulls into manageable sizes. Always keep the bends to a minimum between pulls. To decrease friction over long distances, use large radius bends of 90-degree elbows. Choose mule tape for pulling wire in these challenging situations.
Safety and Special Situations
Always prioritize safety when pulling cables.
· If you need to know how to cut electrical conduit with wires inside, first disconnect the circuit and then verify with proper testing methods.
· To prevent injuring internal wires, use specialized conduit cutters or reciprocating saws, operating gently.
· Hire a qualified electrician who is familiar with how to pull wire through conduit and what kind of wire to run in conduit.
· To avoid interference in case of a conduit Ethernet cable, keep a distance of at least 12 inches from power cables.
· Always wear PPE, including gloves and safety goggles
· Always stick to the manufacturer's instructions
· Test all cables after installation before closing the walls
Conclusion
Successful long conduit runs involve meticulous planning, proper methods, and appropriate tools. Even difficult installations are manageable if you know what kind of wire to run in conduit and how to cut electrical conduit with wires inside. With these helpful tips on whether to run conduit ethernet cable or electrical wiring, you are equipped for success. Just remember the key to pulling cables smoothly lies in how much time you take to plan, prioritize safety, and stick to protocols.
