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Aerial Materials

Aerial Cable Installation Hardware

What Is an Aerial Cable?

An aerial cable is any cable supported above ground from utility poles and pylons. Relevant types include insulated electrical cables, electrical communication, internet cables, and fiber optic cables with support cables.

What Is Aerial Cable Installation Hardware?

You use aerial cable installation hardware for running overhead power, communication, or internet cables using a messenger wire for support. This system is applicable for low voltage insulated electrical cables, Ethernet cables, and fiber cable installation. You may not need a messenger for cables as some are self-supporting, such as all-dielectric self-supporting (ADSS) cables. 

Principles of Aerial Cable Installation

The underlying principle of aerial cable installation is that you suspend the cable from a strong messenger wire. The messenger wire is usually aluminum-clad steel or, in some instances, a stainless steel wire of sufficient strength to support the cable. The messenger wire is strung between utility poles at a sufficient height to clear obstructions and in terms of local codes. You support the aerial cable from the messenger wire using a combination of drop wire clamps, lashing wire, and other fittings. It's important to consider factors such as expansion and contraction and the linear strength of the supported cable to relieve unnecessary strain. Where possible, you should select cables that are of sufficient length to avoid the need to splice cables. Alternatively, provide sufficient slack to allow for fiber cable splicing.  

Aerial Cable Poleline Hardware

For ease of reference, we split our aerial materials and poleline hardware into several sections, allowing users to quickly identify the hardware needed for a particular application.

Pole Support Hardware

In many instances, you'll use existing poles for running an aerial cable, but it's crucial to verify the current installation meets requirements. Points to consider are the loads imposed when the utility line changes direction. It may be necessary to supplement or upgrade pole supports and guys. The same applies when you install new utility poles. Components required for pole guys include:

  • Anchors: Helix anchors, expanding rock anchors, and drop-in anchors
  • Anchor bolts: L-shaped anchor bolts
  • Anchor tools: Setting tools for installing drop-in anchors in concrete
  • Earth anchors: Long helix earth anchors, screwed anchor rods, and anchor extension pieces
  • Guy bolts: Forged guy bolts

Aerial Cable Supporting Hardware

Cable supporting hardware includes fittings and hardware attached to utility poles to secure messenger wires and associated equipment, including:

  • Banding: Banding, banding tools, and banding clamps
  • Brackets and plates: Attachment brackets, extension brackets, double arming plates, and mounting plates
  • Double arming bolts: Different size double arming bolts for cross arm attachments
  • Eyebolts: Assorted eyebolts
  • Eyelets: Straight and angled eyelets
  • Hooks: Assorted pole hooks

Aerial Cable Securing Hardware

Hardware for attaching aerial cables to messenger wires, including:

  • Clamps: Wedge clamps for dead-end securing of aerial cables, drop wire clamps, and other suspension clamps
  • Guy dead-end: Neoprene coated, twisted aluminum wire dead ends to support fiber cables
  • Lashing straps: Aluminum wire for temporarily securing aerial wires to messenger cables

Cable Protection

Devices to protect aerial cables, especially fiber cables, from damage. These include:

  • Snowshoes: Coated aluminum snowshoe-shaped hoops for storing spare lengths of fiber cable, especially at splices
  • Cable guards: U-shaped galvanized steel guards of varying lengths to protect the fiber and electrical cables running vertically down utility poles

Miscellaneous Hardware

Miscellaneous fixing hardware including heavy-duty washers, lag screws, studs, pole steps, and nuts. Contact us at ElectroWire for help and support selecting the right aerial materials and cable installation hardware.

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