The total length of bridge and support shall not be less than

　　1、敷设电缆具有连续性的刚性结构系统，由支、吊、托架支撑的托盘（槽）或梯架直线段、弯通非直线段组合而成；

　　1. The laying cable has a continuous rigid structure system, which is composed of tray (groove) or ladder straight section supported by support, hanger and bracket and non-linear section bent;

　　2、桥架与支架的全长应不少于2处与接地或接零干线相连接；

　　2. The total length of bridge and support shall be no less than 2 places connected with grounding or neutral main line;

　　3、桥架安装和敷设时，必须按照已经批准的设计图纸文件施工；

　　3. When the bridge is installed and laid, it must be constructed in accordance with the approved design drawings and documents;

　　4、施工现场有防火要求的场所，应采取防火隔离措施；

　　4. Where there are fire prevention requirements on the construction site, fire prevention and isolation measures shall be taken;

　　5、桥架连接板两端不少于2个以下的防松螺帽或防松垫圈的连接固定螺丝。

　　5. The two ends of the bridge connecting plate shall not be less than 2 locking nuts or the connecting fixing screws of the locking washers.

　　以上是山东电缆桥架为大家介绍的“桥架与支架的全长应该不少于多少”的相关内容，想要了解更多内容，欢迎访问网站：http://www.sdhangfeng.com

　　The above is the relevant content of "the total length of cable tray and support should not be less than" introduced by Shandong cable tray. For more information, please visit the website: http://www.sdhangfeng.com