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

　　1、敷設電纜具有連續性的剛性結構系統，由支、吊、托架支撐的托盤（槽）或梯架直線段、彎通非直線段組合而成；

　　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、橋架與支架的全長應不少于2處與接地或接零干線相連接；

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

　　3、橋架安裝和敷設時，必須按照已經批準的設計圖紙文件施工；

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

　　4、施工現場有防火要求的場所，應采取防火隔離措施；

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

　　5、橋架連接板兩端不少于2個以下的防松螺帽或防松墊圈的連接固定螺絲。

　　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.

　　以上是山東電纜橋架為大家介紹的“橋架與支架的全長應該不少于多少”的相關內容，想要了解更多內容，歡迎訪問網站：http://m.12xw.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://m.12xw.com