Cable Tips: How to Install Cables

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Limit Pulling Tension

Do not allow pulling tension to exceed 20% of the ultimate breaking strength of the cable (These figures are available from the cable maker.)

Use Cable Pulling Equipment

Cable pulling equipment, such as cable pullers, fish tape, and pull tape, assists with the installation process and ensures controlled pulling forces.

Lubricate the Raceway or Conduit

Using lubricant ensures a smooth, damage-free installation, reduces friction and strain on the cable, and optimizes the overall efficiency of the installation process. (Check with the manufacturer for types of lubricants best suited to the type of cable.)

Minimize Cable Bending

To minimize cable bending during installation, plan cable routes carefully and properly support the cable to allow gradual arcs of less than 12 times the cable diameter. For more information about bending conduit, see our Conduit EMT Bender Guide.

Prevent Cable Twisting

Avoid twisting or kinking a cable during installation by using cable-pulling grips, also known as pulling socks or mesh grips, and swivels.

Properly Support the Cable

Use cable trays, hangers, or clamps to prevent excessive sagging or tension. Adequate support helps distribute the weight of the cable and reduces stress during installation.

Avoid Underground Splicing

For long underground runs, pull the cable both ways from a centrally located manhole to avoid splicing. Use pulling eyes on each end.

Don't Use Damaged Cable

Before installation, inspect the cable for any signs of damage or defects like cuts, kinks, or other abnormalities. For more information on cable repair, see our Wire Splice and Connector Guide.

Secure Cable Connections

Make sure cable connections are securely terminated with appropriate connectors or termination methods. For more information, see our Wire Splice and Connector Guide.

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