The bridge shall be provided with fixed support points within 500mm of the two ends of the junction box, box, cabinet, corner, turning and deformation joint and the three ends of the T-joint. It is forbidden to cut the supports and hangers by electric welding; It is forbidden to fix the supports and hangers with wooden bricks.

桥架安装

Bridge installation

4.1桥架水平安装时，支撑跨距一般为1.5—3m，垂直敷设时固定点间距不易大于2m。

4.1 When the bridge is horizontally installed, the support span is generally 1.5-3m, and the spacing between fixed points is not more than 2m when it is vertically laid.

4.2桥架应平整，无扭曲变形，内壁无毛刺，各种附件齐全

4.2 The bridge shall be flat, free from distortion, burr on the inner wall, and all accessories shall be complete

4.3桥架接口应平整，接缝处应紧密平直。槽盖装上后应平整，无翘角，出线口的位置准确。

4.3 The bridge interface shall be flat, and the joint shall be tight and straight. After the slot cover is installed, it should be flat, without warping angle, and the position of the outlet should be accurate.

4.4在吊顶内敷设时，如果吊顶无法上人时应留有检修孔。

4.4 When laying in the ceiling, if the ceiling can not be accessed, the manhole shall be reserved.

4.5桥架的所有非导电部分的铁件均应相互连接和跨接，使之成为一连续导体，并做好整体接地；每段桥架之间的接地跨接采用编织铜线。

4.5 The iron parts of all non-conductive parts of the bridge shall be connected and bridged to form a continuous conductor and be grounded as a whole; The grounding jumper between each section of bridge is braided copper wire.

4.6桥架经过建筑物的变形缝时，桥架本身应断开，槽内用连接板搭接，不需固定。保护地线和槽内导线应留有补偿余量。直线段钢制桥应认真执行施工规章制度加强对施工人员管理，落实施工技术措施，检查和督促施工人员作业，做到、文明施工。

4.6 When the bridge passes through the deformation joint of the building, the bridge itself shall be disconnected, and the slot shall be overlapped with connecting plates, without fixing. Compensation allowance shall be reserved for the protective ground wire and the conductor in the slot. The steel bridge in the straight section shall carefully implement the safety construction rules and regulations, strengthen the management of the construction personnel, implement the safety construction technical measures, inspect and urge the construction personnel to work safely, and achieve safe and civilized construction.

1.2组织施工人员学习施工标准和熟悉施工图纸，严格按照设计及有关规定、规范、标准要求进行施工，随时检查施工质量，发现问题及时整改。

1.2 Organize the construction personnel to learn the construction standards and be familiar with the construction drawings, carry out construction in strict accordance with the design and relevant regulations, specifications and standards, check the construction quality at any time, and rectify the problems found in time.

1.3对施工现场搭设脚手架、并架和施工现场使用的电气、机械设备、防护装置应符合相关规定并验收合格后才能使用。?施工人员在整个施工过程中应遵守下列规定：

1.3 The electrical, mechanical equipment and safety protection devices used on the construction site shall comply with the relevant safety regulations and can only be used after acceptance.? The construction personnel shall comply with the following provisions during the whole construction process:

2.1必须遵守和执行相关的生产、文明施工的管理制度并应接受建设单位监理人员的检查监督。必须戴帽进入施工现场，高空作业必须系好带。

2.1 The relevant management system of safe production and civilized construction must be observed and implemented, and the inspection and supervision of the supervision personnel of the construction unit shall be accepted. Safety helmets must be worn to enter the construction site, and safety belts must be fastened when working at heights.

2.3在控制室、开关室工作必须要有监护人员在场，并在断电的情况下进行作业，应摘下手表、钥匙、打火机、钢笔等金属物品，并戴绝缘手套，穿绝缘鞋。

2.3 When working in the control room and switch room, the supervisor must be present, and when working in the case of power failure, the watch, key, lighter, pen and other metal items should be removed, and insulated gloves and shoes should be worn.

2.4需要整理排放电缆时，事前应征求监护人员的同意，并在监护人员监护下进行。

2.4 If it is necessary to arrange and discharge cables, the consent of the supervisor shall be obtained in advance and carried out under the supervision of the supervisor.

2.5施工完毕后，应将施工现场清理干净。

2.5 After construction, the construction site shall be cleaned up.

施工管理制度

Safety construction management system

1、进出工作区域一定要登记时间、人数和工作内容。

1. The time, number of people and work content must be registered when entering and leaving the work area.

2、施工人员进场施工要佩戴工作胸卡，头戴帽，身穿工作服。

2. Construction personnel shall wear work badges, safety helmets and work clothes when entering the construction site.

3、进入工作区域施工，严禁吸烟。

3. Smoking is strictly prohibited when entering the work area for construction.

4、带电操作区域必须允许工作时，穿戴绝缘手套和绝缘鞋。

4. Wear insulating gloves and shoes when working in the live operation area.