Eliminate cable "drag"

Pulling multiple cables takes a lot of time and effort. In addition, it creates drag, or tension, which can cause damage to the cable.

Feb 1st, 1997
Th Cim62908 13

Barry Gregg and Scott Laughlin, Erico Inc.

Problem

Pulling multiple cables takes a lot of time and effort. In addition, it creates drag, or tension, which can cause damage to the cable.

Solution

Build a cable-pulling trapeze roller from scrap conduit at the job site. Use a subduct within the conduit to prevent tension on the cable and make the pull easier.

Procedure

1) Attach two 0.25-inch rods to the beam or concrete deck with pre-assembled fasteners.

2) Drop the rods 3 feet apart, or whatever distance is required.

3) Attach a 0.5-inch conduit hanger to the bottom of both rods.

4) Insert a 3.5-foot length of 0.5-inch conduit inside a 3-foot section of 1-inch conduit.

5) Secure the 0.5-inch conduit at each end to the 0.5-inch conduit clips on the bottom end of the rods.

6) The 1-inch conduit will now roll freely and is ready for a drag-free cable pull. You can leave this trapeze roller in the ceiling as a support member or take it down and use it again on another job.

Click here to enlarge image

Reusable trapeze roller built from scrap conduit provides drag-free cable pull.

Barry Gregg is marketing services supervisor, and Scott Laughlin is product design specialist, both at Erico Inc., Fastening Products Div. (Solon, OH). This tip was a runner-up at the Installer Tips Contest at Cabling Installation Expo `96, held in Charlotte, NC, last October and was compiled by Dennis Mazaris, registered communications distribution designer (rcdd), a design consultant at PerfectSite, 100 Glenn Drive, Suite A-11, Sterling, VA 21065, tel: (703) 450-8986, fax: (703) 450-9343, e-mail: dmazaris@perfectsite.com.

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