[Chai Jin cable tray to recommend the star product - the bridge] choose a size, width and height of the bridge on the press table selection, and shall comply with the provisions of the true value of the cable charging rate does not exceed the relevant standards, and power cables desirable 40- 50% trough bridge xqj, control cables desirable 50-70%, and 10-25% of the need to stay away style development margin. 2, various elbow and accessories shall conform to the specifications and conditions of the project layout and matching tray. 3, support and hanger size selection, should bridge specification, layers, span configuration and other conditions. And shall meet the load requirements. 4, the bridge cross-sectional area of ??choice in Table [Chai Jin cable tray to recommend the star product - bridge] bridge fire fire protection requirements section trough bridge xqjc, must use steel or non-combustible, 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 bridge). 2, when the system configuration should be allowed to use the bridge circuit grounding line meets the following requirements. 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 types and a variety of choice, to be electrical interference shielding cable network or external protection (such as: corrosive liquids, combustible dust and other environmental) impacts When the request trough cable tray should be used (FB) class trough complex corrosion shielded cable tray (with cover) 2, corrosive environment should be used (F) corrosion retardant epoxy resin composite cable tray. Corbel, bracket should choose the same material, improve service life, tray cable tray and accessories. Trough Trough east 10050_ bridge cable tray bridge _ Chai Jin professional production provided by the Tianjin Chai Jin bridge cable bridge Limited. Chai Jin Tianjin cable bridge Limited (www.tjcjdlqj.com) strong, credible, in Tianjin metal building materials industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Chai Jin cable tray and you hand into the brilliant, for a better future!