山东电缆桥架安装期间,梯架、托盘和槽盒与支架间及与连接板的固定螺栓应紧固无遗漏,螺母应位于梯架、托盘和槽盒外侧;当铝合金梯架、托盘和槽盒与钢支架固定时,应有相互间绝缘的防电化腐蚀措施。按每个检验批的梯架或托盘或槽盒的固定点数量各抽查10%,且各不得少于2个点。
During the installation of Shandong cable bridge, the fixing bolts between the ladder, tray and tray box and the bracket and the connecting plate shall be fastened without omission, and the nuts shall be located outside the ladder, tray and tray box; When the aluminum alloy ladder, tray and trough box are fixed with the steel bracket, there should be mutual insulation measures to prevent electrochemical corrosion. 10% of the fixed points of the ladder or tray or slot box of each inspection lot shall be randomly inspected, and no less than 2 points shall be inspected.
敷设在电气竖井内穿楼板处和穿越不同防火区的梯架、托盘和槽盒,应有防火隔墙措施。
The ladder, tray and trough box laid in the electrical shaft where it passes through the floor and different fire zones shall be provided with fire partition measures.
敷设在电气竖井内的电缆梯架或托盘,其固定支架不应安装在固定电缆的横担上,且每隔3层~5层应设置承重支架。
For the cable ladder or tray laid in the electrical shaft, the fixed support shall not be installed on the cross arm of the fixed cable, and the load-bearing support shall be set every 3~5 layers.
对于敷设在室外的梯架、托盘和槽盒,当进入室内或配电箱(柜)时应有防雨水措施,槽盒底部应有泄水孔。
For ladder, tray and trough box laid outdoors, rain-proof measures shall be taken when entering indoor or distribution box (cabinet), and drain hole shall be set at the bottom of trough box.
承力建筑钢结构构件上不得熔焊支架,且不得热加工开孔。
The support shall not be welded on the steel structural members of the load-bearing building, and the holes shall not be hot-processed.
水平安装的支架间距宜为1.5m~3.0m,垂直安装的支架间距不应大于2m。
The support spacing for horizontal installation should be 1.5m~3.0m, and the support spacing for vertical installation should not be greater than 2m.
采用金属吊架固定时,圆钢直径不得小于8mm,并应有防晃支架,在分支处或端部0.3m~0.5m处应有固定支架。
When the metal hanger is used for fixing, the diameter of round steel shall not be less than 8mm, and there shall be anti-shaking support, and there shall be fixed support at the branch or 0.3m~0.5m at the end.
支吊架设置应符合设计或产品技术文件要求,支吊架安装应牢固、元明显扭曲;与预埋件焊接固定时,焊缝应饱满;膨胀螺栓固定时,螺栓应选用适配、防松零件齐全、连接紧固。按每个检验批的支架总数抽查10%,且各不得少于1处,并应覆盖支架的安装形式。
The setting of supports and hangers shall comply with the requirements of design or product technical documents, and the installation of supports and hangers shall be firm and obvious distortion; When welding and fixing with embedded parts, the weld shall be full; When the expansion bolt is fixed, the bolt shall be suitable, the anti-loose parts shall be complete, and the connection shall be tight. Spot check 10% of the total number of supports in each inspection lot, and no less than 1 support each, and cover the installation form of the support.
金属支架应进行防腐,位于室外及潮湿场所的应按设计要求做处理。按每个检验批的金属支架总数抽查10%,且不得少于1处。
Metal supports shall be protected against corrosion, and those located outdoors and in damp places shall be treated according to design requirements. Spot check 10% of the total number of metal supports in each inspection lot, and no less than 1.
The relevant contents of the observation and inspection items during the bridge installation are the above. If you have any questions about this, please come to our website //www.comprepyme.com Consult and understand!