A to Z of Cable Tray Wring System

If you are looking for or if you are in process of installing cable tray wiring system, better you read this article to know almost everything about cable tray wiring system.

What is a Cable Tray System?

Per the National Electrical Code, a cable tray system is “a unit or assembly of units or sections and associated fittings forming a rigid structural system used to securely fasten or support cables and raceways.”

What does this mean?

Cable trays support cable the way that roadway bridges support traffic.
A bridge is a structure that provides safe passage for traffic across open spans.
Cable tray is the bridge that allows for safe transport of wires across open spans.
Therefore, think of cable tray as the structural component of a building’s electrical system.

What types of Cable Tray are available?

Ladder
Solid Bottom
Trough
Channel
Wire Mesh
Single Rail

What materials / finishes are available for the various cable tray systems?

Steel
Aluminum
Fiber Reinforced Plastic

What types of cable trays are available, what configurations are available?

Straight sections are available to route cables in a horizontal or vertical plane.
Fittings are available to route cables in various directions in either the horizontal orhttps://capitalmaniacs.com/ vertical planes. Typical examples of fittings include elbows, tees, crosses, and risers. Each of these fittings are available in various radii and bend angles.
Covers are accessories and shouldn’t be in here unless splices etc. are included.

After selecting the type of cable tray and configuration required, what support methods are available?

Trapeze Support (Single or Multi-tier)
Hanger rod clamps, “J” hangers
Center Hung Support
Wall Support
Under floor Support
Pipe stanchions or other structures

Each of these support methods are preferable in different applications. For instance, trapeze supports may be desired in an application where cables will be pulled through the cable tray. Center hung supports, on the other hand, are generally used when cables will be installed from the side of the cable tray. Center hung supports are especially useful when future cable additions are desired. Wall supports and under floor supports are useful when ceiling structure is not available or undesired. Outdoor installations are controlled by the structures available to support the cable tray.