The bridge material of the cable bridge shall be constructed according to the design requirement. If design does not have specific requirement, should press the following request.

　　a、镀锌电缆桥架之间可利用镀锌连接板作为跨接线，把桥架连成一体，在连接板两端的两只连接螺栓上加镀锌弹簧垫圈。

　　A connection can use galvanized, galvanized cable tray plate as a jumper, put the bridge together as a whole, on two connecting bolt at the ends of the connecting plate and galvanized spring washer.

　　b、涂漆和喷塑及喷涂其它绝缘物的桥架，应采用软铜线跨接。 跨接用的螺栓应镀锌，跨接导线端子与桥架接触处，既要绝缘涂层，还要涂防锈导电膏。或委托制造厂在桥架上焊铜垫圈，保证电缆桥架之间跨接可靠。

　　The bridge of b, painting and spraying and spraying other insulation shall be made of flexible copper wire. The bolted bolts shall be galvanized, and the contact between the terminals and the bridge shall be removed, and the insulating coating shall be cleaned and the rust conductive paste shall be applied. Or entrust the manufacturer to weld the copper washer on the bridge and guarantee the reliability of the cable bridge.

　　c、桥架经过建筑物变形缝和直线段超过30m，设补偿装置处，桥架间断两端应用软铜导线跨接，并留有伸缩余量。对于振动场所，在接地部位的连接处应装置弹簧圈。

　　C, the bridge is over 30 meters in the shape of the deformation of the building and the line segment, and the compensator is located, and the bridge is intersecting with the flexible copper conductor at the end of the bridge, and there is a retractable residual amount. For vibrations, the spring coil should be installed at the connection of the ground.

　　桥架系统应具有可靠的电气连接，电缆桥架从始端到终端，少有一处与接地干线可靠连接。沿桥架全长另敷设接地干线时，每段（包括非直线段）桥架应少有一点与接地干线可靠连接。

　　The bridge system should have reliable electrical connection, the cable bridge is from the beginning to the terminal, at least one is connected to the ground main. Each section (including non-linear segment) bridge should have at least one reliable connection to the grounding line when the bridge is all over the ground.

　　镀锌桥架之间可利用镀锌连接板作为跨接线，把桥架连成一体。在连接板两端的两只连接螺栓上加镀锌弹簧垫圈，桥架之间用不小于4mm2软铜线进行跨接，再将桥架与接地线相连，形成电气通路。桥架整体与接地干线应有不少于两处的连接。

　　Zinc-plated bridge can be used to connect the bridge with the galvanized connection plate. On two connecting bolt at the ends of the connecting plate and galvanized spring washer, bridge between was not less than 4 soft copper wire jumper, then bridge connected to the grounding wire, electrical pathway. There should be no less than two connections between the total and ground trunk of the bridge.

　　若设计要求把桥架作为接地干线的一部分，则要求遵守电缆桥架安装规范在接头处的连接电阻不应大于0.00033Ω。若利用桥架连接板达不到这个要求，即使是镀锌桥架，也应用符合设计要求的软铜导线跨接。

　　The bridge if design requirements as part of the grounding line, is for the cable tray installation specification in connection joint should not be greater than 0.00033 Ω resistance. If the bridge board is not able to reach this requirement, even the galvanized bridge is applied to the flexible copper wire that meets the design requirements.