The cable tray has the characteristics of complete variety, wide application, large strength, light structure, low cost, simple construction, flexible wiring, standard installation, and beautiful appearance, which brings convenience to technical improvement, cable expansion, maintenance and overhaul, and has been widely used in the project. Next, Jinan cable tray manufacturer will talk about the technical key points of selecting GRP cable tray.
1. The cable tray, trunking and its supports and hangers shall be made of corrosion-resistant rigid materials or treated with anti-corrosion treatment, which shall meet the requirements of engineering environment and durability.
2. In the section with fire protection requirements, the cable tray can be added with fire-resistant or flame resistant plates, nets and other materials in the cable ladder and tray to form a closed or semi closed structure, and measures such as painting fire-resistant coating on the surface of the tray and its supports and hangers shall be taken. The overall fire resistance shall meet the requirements of relevant national codes or standards.
3. The selection of width and height of cable ladder and tray shall meet the requirements of filling rate. In general, the filling rate of cable ladder and tray can be 40%~50% for power cable and 50%~70% for control cable, and 10%~25% engineering development allowance should be reserved.
4. When selecting the bending or leading up and down devices of the cable tray, it shall not be less than the small allowable bending radius of the cable in the cable tray.
Glass fiber reinforced plastic cable pipe can be installed on the open column or buttress. When hoisting the bridge, the I-steel column shall be laid symmetrically on both sides as far as possible. It can be laid horizontally and vertically, with corner, T-shaped and cross shaped branches; Adjustable width, height and diameter. More relevant content will come to our website http://www.yeeones.com Consult!