Cable Tray
In the wiring of a building cable trays are used to support electrical Cables it is also used for distribution of power and communication in the factories. it is also used in those ares or field where changing of cables are required and by the use of cables we can easily change and fixed wires or the cable trays instead of pulling them through the wire
Today cable tray is a necessary part of the industrial and commercial areas. it is used to carry to all the type of cables like:
- High voltage power lines in factories
- Power Distribution Cables
- it is used in telecommunication
- it is also used for optical cables
Material used for Cable tray
The choice of materiel depend upon the environment of installation of cable tray and its cost.
these materials are used in the manufacturing of cable tray.
- Aluminum
- stainless steel
- steel
Aluminum:
- It is used for high strength to weight ratio
- it is 50% light then steel
- it no need to maintenance .
- Aluminum cable tray are non magnetic and electric losses are minimum.
Steel:
- Steel cable tray have high strength and low in cost that is why we used this type of cable tray.
- But it have high in weight , low electrical conductivity
- it have reality poor corrosion resistance.
- we used steel cable tray for those places which are free of moisture .
Stainless steel:
- it offered high yield strength and high creep strength at high temperature
- these cable trays are made formed AISI type 316 steel.
- it have resistance of organic chemical and inorganic chemicals.
- it is also have high resistance of corrosion.
Types of cable tray
- Ladder Type cable tray
- Solid bottom cable tray
- Trough cable tray
- Channel cable tray
- Wire Mesh cable tray
- Single Rail cable tray
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