THE NEED FOR A CABLE TRAY SYSTEM:
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As technology advances, so too does the need for effective support systems. Today, plants and buildings are moving more and more towards automation. Requiring complex system of wiring and cable laying.
Old methods of cable management become obsolete under these demanding conditions.
1. Regular inspections must be carried out, & faults located
2. Many entry/exit points are required
3. New cables may need to be installed, and old ones removed
4. Ventilation, essential to power and similar cables, must be provided
Today cable trays have become a necessary part of industrial and commercial construction by offering quick, economical and flexible solutions to these problems. Cable trays are capable of supporting all types of wiring:
1. High Voltage Power Lines
2. Power Distribution Cables
3. Sensitive Control Wiring
4. Telecommunication Wiring
5. Optical Cables
Cable Tray Materials:
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Most cable tray systems are fabricated from a corrosion-resistant metal (low-carbon steel, stainless steel or an aluminum alloy) or from a metal with a corrosion-resistant finish (zinc or epoxy).
• The choice of material for any particular installation depends on the installation environment (corrosion and electrical considerations) and cost.
Aluminum
• Cable trays fabricated of extruded aluminum are often used for their high strength-to-weight ratio, superior resistance to certain corrosive environments, and ease of installation. They also offer the advantages of being light weight (approximately 50% that of a steel tray) and maintenance free, and since aluminum cable trays are non-magnetic, electrical losses are reduced to a minimum.
• Cable tray products are formed from the 6063 series alloys which by design are copper free alloys for marine applications. These alloys contain silicon and magnesium in appropriate proportions to form magnesium
silicate,