[Chai Jin cable tray to recommend the star product - the bridge] in the selection, specification cable tray, cable tray manufacturing plant to provide the allowable load capacity should be greater than the actual amount of load G total. When the cable tray with cover in outdoor installations, cable trays should be counted withstand the maximum load of snow and other effects. Cable tray width b determination with the different power cables and control cables duty rather different. As the power cable in the bridge are generally single-level emissions, trough cable tray manufacturers, so its installation bridge width b is: b = n1 (d1 + k1) + n2 (d2 + k2) + n3 (d3 + k3) + ...... Where: d1, d2, d3 ...... within the outer diameter of the cable tray of various units of mmn1, n2, n3 ...... the number of the same kinds of the above-mentioned model specification cable. K1, k2, k3 ...... spacing when said cable is placed. The value should be greater than 1/4 of the minimum diameter of the cable. Under normal circumstances, fire cable bridge, the control cable may be arranged both horizontally in the tray, Lishui cable tray to be stacked. [Chai Jin cable tray to recommend the star product - bridge] bridge fire fire protection zones, you must use steel or non-flammable, fire-retardant materials. I produced a series of cable tray are BJⅢ fire bridge. V. Ground 1, the bridge system should have a reliable electrical connection and ground (only metal tray). 2, while allowing the use of the bridge when the grounding line loop system configuration meets the following requirements. The connection resistance between the ends of the bridge should not exceed 0.00033 ohms, grounding hole should remove the insulation coating. [Chai Jin cable tray to recommend the star product - bridge] cable tray Profile: cable tray cable tray is petroleum, chemicals, light industry, telecommunications and other aspects of application of the most widely used. It is light weight, load, handsome in appearance, simple structure, easy installation, and other advantages. It shall apply to the installation of power cables, but also for control cable laying. Lishui Tianjin cable bridge cable bridge _ _ Chai Jin preferred cable tray prices Chai Jin from Tianjin cable bridge Limited. Lishui Tianjin cable bridge cable bridge _ _ cable tray price preferred Chai Jin Chai Jin Tianjin cable bridge Limited (www.tjcjdlqj.com) this year introduced a new upgrade, the above picture is for reference only, please call or pictures on this page contact telephone number, to obtain the latest information, contact: Chai Guan Yu.