Electrical 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. The cable tray types to choose from are ladder, ventilated trough, or solid bottom. The tray is usually cheaper compared to the conduit, thanks to the reduction in labor costs. Many types of cable trays, such as mesh trays, are specifically designed with the goal of saving costs in mind. Cable tray is more flexible than conduit and has a simpler and more approachable design.
How cable trays are installed? 1. Install cable tray support using a pre-fabricated flange or GI channel. 2.Fix the cable tray according to the site, can be hanging on the ceiling or installing on the wall. 3.Lay the cable keeping the distance as per calculation. 4.Tie the cable using cable tie and label the cables as required. Generally speaking, the distance between the upper side of the cable trays and the ceiling may not be less than 300 mm and the vertical distance between the two parallel cable trays may not be less than 150 mm. Along the vertical walls, there must be a minimum distance of 50 mm between the cable trays and the wall. If the tray is an exposed conductive part it requires earthing. If the tray is and extraneous conductive part it requires bonding. The important considerations for cable trays are their resistance to fire, the potential for ignition and propagation of cable fire between adjacent trays. This is related to the cable materials, the layout of the cable trays, the fire protection system, and the area ventilation system. The equipment that will be engaged for Installation of Cable Trays and Trunking works will be as follows:
1. Wire cutters.
2. Hacksaw.
3. Measuring tape.
4. Drill machine.
5. Wooden hammer.
6. Flat file.
7. Screw drivers.
8. Spanners.
Vichnet electrical cable tray is with CE,RoHS certified with more than 16 years. Also, Vichnet is a leading brand in China with ISO9001,ISO14001, and IS045001. Fast delivery time, good service, and competitive price makes Vichnet more and more gain a lot of good reputation in the market home and abroad. Customers award us as reliable cable tray, reliable Vichnet! Welcome to Vichnet for more communications in the future.