1. When the cable bridge is laid in the skilled layer and the ceiling of the corridor, the spacing between the bridge and the water supply pipeline and the air duct can not meet the requirements of the specifications, and it is not convenient to open the cover plate of the bridge when the maintenance is required. In the process of installation, it is very difficult to control the equipment unless the relevant professional cooperation and technical data of related professional pipelines are done well in advance. As for this work, can we draw a sketch map in advance, summarize the technical data of the pipeline and the orientation of the bridge and cross-sectional maps of the dimensions between each other, rationally adjust the intervals between the various professional pipelines to prevent the occurrence of common diseases?

2.桥架内电缆的填充率超越规范值。在施工图纸中，常见的只要平面布置图，即便有剖面图也不是很完善，其规划内容有:

The filling rate of the 2. cable inside the bridge exceeds the standard value. In construction drawings, the most common as long as the layout plan, even if there is a section map is not very perfect, its planning content includes:

1、桥架体系的平面布置图。

1. The layout plan of the bridge system.

2桥架体系的有关剖面图。

2 the relevant section of the bridge system.

3桥架体系所需托盘、梯架直线段弯通、支吊架规范和数量的名细表以及必要的阐明。

3. Name list and necessary clarification of tray, straight bending of ladder, specification and quantity of support and hanger for bridge system.

4有特别要求的非规范技能阐明或祥图。因规划不行完善等原因，形成部分呈现放置电缆太多，甚于有满载现象，电缆的填充率不该超越有关规范的规定值，动力电缆40%，操控电缆50%的要求。就此而言，监理人员应做好事前预控办法，严格要求施工单位在未收购桥架之前，熟练掌握电气工程体系的运用功用，对每路桥架内电缆的数量及电缆截面做好精确的计算，发现问题应及时会同规划更改桥架的规范，有用操控质量问题的发作。

4 there are special requirements for non-standard skills clarification or auspicious drawings. Due to imperfect planning and other reasons, there are too many or even full-loaded cables in some parts. The filling rate of the cables should not exceed the stipulated value of relevant specifications. 40% of the power cables and 50% of the control cables are required. In this regard, supervisors should do a good job of pre-control measures, strict requirements for construction units before the purchase of the bridge frame, skilled in the use of electrical engineering system, the number of cables in each bridge frame and cable cross-section to do a good job of accurate calculation, found problems should be timely in conjunction with planning to change the specification of the bridge, useful control The outbreak of quality problems.

3、敷设在电缆桥架内的电缆未做固定和电缆未做符号

3. The cables laid in the cable tray are not fixed and the cables are not signed.

桥架笔直敷设时，在距地1.8m以下部分应加金属盖维护，但敷设在电气专用房间内时可除外。

When the bridge is laid straight, the metal cover should be maintained below 1.8 m from the ground, except when it is laid in an electric room.

电缆桥架多层敷设时其层间间隔一般为。

The interlayer spacing of cable bridge is generally in the form of multilayer.

①桥架上部距顶板或其他障碍物不该小于0.3m。

(1) the upper part of the bridge should not be less than 0.3m from the roof or other obstacles.

②电力电缆桥架间不该小于0.3m。

The power cable bridge should not be less than 0.3m.

③操控电缆桥架间不该小于0.2m。

3. The control cable bridge should not be less than 0.2m.

④弱电电缆桥架与电力电缆桥架间不该小于0.5m，如有屏蔽盖板可减0.3m。

(4) the bridge between weak electric cable and power cable should not be less than 0.5m, if the shielding cover can be reduced to 0.3m.

电缆桥架装置办法：关于特别形状桥架，将现场丈量的尺度交于资料供货商，由供货商根据尺度制造，削减现场加工。桥架原料、型号、厚度以及附件满足规划要求。

Cable Bridge Installation: For special shape bridge, the scale of field measurement is delivered to the data supplier, which manufactures according to the scale and cuts down on site processing. The material, type, thickness and accessories of the bridge meet the planning requirements.

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