[Chai Jin cable tray to recommend the star product - bridge] bridge fire zone fire safety requirements, must be 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 galvanized tray, grounding hole should remove the insulation coating. [Chai Jin cable tray to recommend the star product - bridge] bridge system tray systems engineering design content should be designed and civil engineering, technology and related professional cooperate closely to determine the best arrangement of galvanized tray manufacturers, whose design elements can contain: 1 relevant sectional view of the bridge system. 2, the bridge system floorplan. 3, the bridge system for the line segment, elbow, branch, hanger specifications and schedules as well as the number of necessary instructions. 4, there are non-standard technical description or diagram of special requirements. [Chai Jin cable tray to recommend the star product - bridge] at the time of selection, cable tray manufacturing plant is provided to allow the load should be greater than the actual amount of the total amount of load G. When the cable tray with cover in outdoor installations, cable trays should be counted, etc. The maximum snow load impact. Cable tray width b is determined with the different power cables and control cables work system rather different. As the power cables in the bridge are generally single-level emissions, so the installation of the bridge width b is: b = n1 (d1 + k1) + n2 (d2 + k2) + n3 (d3 + k3) + ...... Where: d1 , d2, d3 ...... for a variety of cable outer diameter of the heat inside the tray dip galvanized tray unit is mmn1, n2, n3 ...... for the same number of species above the root of the cable model specifications. K1, k2, k3 ...... pitch of said cable when placed. The value should be greater than 1/4 of the minimum diameter of the cable. In general, control cables can be arranged either horizontally within the bridge can also be stacked. Galvanized tray price _ _ famous bridge Shijiazhuang galvanized cable tray provided by the Tianjin factory Chai Jin Chai Jin cable tray 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!