Cable Tray
Cable trays are mechanical support systems that
provide a rigid structural system for electrical cables, raceways, and
insulated conductors used for electric power distribution, control,
signal instrumentation, and communication. Metal cable trays are made of
galvanized steel, stainless steel, and aluminum. Non-metallic cable
trays are made of glass-fiber reinforced plastic.
Specific types include
- Metal channel-type
- Metal single rail
- Metal and nonmetallic ladder-type
- Metal and nonmetallic trough-type
- Metal wire mesh/basket
- Other cable tray systems
Cable
trays are essential to a building's electrical system, supporting
cables in the same way that roadway bridges support traffic.. They
provide versatility and offer savings of up to 84 percent in labor
costs.