Cable trays are used as an alternative to open wiring or electrical conduit systems, and are commonly used for cable management in commercial and industrial construction. They are especially useful in situations where changes to a wiring system are anticipated, since new cables can be installed by laying them in the tray, instead of pulling them through a pipe. Types of Cable Trays,
Ladder , Soli
d Bottom, Trough Channel, Wire Mesh. Fitting support methods. Trapeze Support (Single or Multi-tier), Hanger rod clamps, "J" hangers, Center Hung Support, Wall Support, Underfloor Support, Pipe stanchions or other structures. Job site and installation considerations
Outdoor
supports available affect the length and strength requirements
environmental loads, ice, wind, snow, and possibly seismic
corrosion requirements affect the materials and finishes
classified hazardous locations affect the cable types acceptable
Indoor
support locations available affect the length and strength of the system
industrial installation may require a 200 lb. Concentrated Load
commercial or institutional installation may make system appearance, system weight, and space available important factors
environmental air handling area may affect cable types, cable tray material, or cable tray type and need for covers
classified hazardous locations affect the cable types acceptable
