Detailed practices of bridge erection and construction:

桥架跨接线连接要注意：用抓垫、平垫或把喷塑桥架的漆刮掉再用平垫、弹簧垫压紧。镀锌电缆桥架间连接板的两端不跨接接地线，但连接板两端不少于2个有防松螺帽或防松垫圈的连接固定螺栓强标。于支架的接地，就是把支架与桥架连接处固定刮漆就可以或是抓垫。接地线小截面不小于4。

Attention should be paid to bridge spanning connection: scrape off the paint of sprayed plastic bridge frame with grasping pad, flat pad or spring pad. The two ends of the connecting plate between galvanized cable bridges do not cross the ground wire, but at least two connecting fixed bolts with anti-loosening nuts or anti-loosening washers at both ends of the connecting plate are strong. As for the grounding of the bracket, the bracket and the bridge connection can be fixed scraping paint or pad. The minimum section of grounding wire is not less than 4 square meters.

桥架的安装：横平竖直，弯头处要平缓。当桥架分层时，好用组合架。

Installation of bridge frame: horizontal and vertical, gentle elbow. When the bridge is stratified, it is better to use composite frame.

桥架内部要加设防火封堵或加设防火包

Fire-proof plugging or fire-proof package should be added inside the bridge frame.

钢制30米，铝合金及塑料的15米要加伸缩节。过建筑物变形缝处伸缩缝、沉降缝加补偿装置。

Steel 30 meters, aluminum alloy and plastic 15 meters to add expansion joints. Expansion joints and settlement joints are compensated through the deformation joints of buildings.

桥架的支架间距一般要求水平的为1.5-3米，垂直的为2米一个。

The spacing between the supports of the bridge is generally required to be 1.5-3 meters horizontally and 2 meters vertically.

螺母位于桥架的外侧。当支架与铝合金桥架连接时，注意防电化措施。

The nut is located outside the bridge frame. When the bracket is connected with the aluminium alloy bridge, attention should be paid to the anti-electrochemical measures.

综上所述有济南航丰实业有限公司提供，想了解更多山东电缆桥架知识，欢迎关注我们的网站:http://www.sdhangfeng.com谢谢支持！

In summary, all the above-mentioned Jinan Hangfeng Industrial Co., Ltd. provides, want to know more about Shandong cable bridge, welcome to pay attention to our website: http://www.sdhangfeng.com Thank you for your support!