Be sure to select all cable types and accessories to meet the requirements of bridge standardization. Bridges in buildings can be erected independently or connected to various buildings and pipe gallery supports. Of course, if it is to be installed, it should be installed outdoors and use highly corrosive materials where it is difficult to maintain in the future. How much do you know about the acceptance requirements of cable tray? Let's have a look.

1.根据公司标准检查桥架。

1. Check the bridge according to the company's standards.

2.检验程序和方法

2. Inspection procedures and methods

(1)外观：如果电缆桥架上的锌涂层已损坏或其他涂层脱落。

(1) Appearance: if the zinc coating on the cable tray is damaged or other coatings fall off.

(2)电缆桥架本身要光滑且平整，并且外径不得损坏电缆绝缘层。

(2) The cable tray itself shall be smooth and flat, and the outer diameter shall not damage the cable insulation layer.

(3)形状：两个相对的侧面应平行，且两个侧面应垂直于底面，并且横截面形状应笔直，并且边缘无扭结，扭曲，裂纹和毛刺等缺陷。

(3) Shape: the two opposite sides shall be parallel, and the two sides shall be perpendicular to the bottom, and the cross-section shape shall be straight, and the edge shall be free of defects such as kink, twist, crack and burr.

3.表面处理

3. Surface treatment

桥梁框架的表面要根据施工现场环境的要求进行贴面和包覆保护，并且各种保护层的厚度和粘附力要满足桥梁框架的承重规范。

The surface of the bridge frame shall be covered and protected according to the requirements of the construction site environment, and the thickness and adhesion of various protective layers shall meet the load-bearing specifications of the bridge frame.

(1)厚度热浸镀锌电缆桥架主体的厚度为1.53mm，小平均厚度55am，小局部厚度为45am。3mm的厚度是70am，局部是55am。

(1) The thickness of the main body of the hot-dip galvanized cable tray is 1.53mm, with a small average thickness of 55am and a small local thickness of 45am. The thickness of 3mm is 70am and 55am locally.

(2)镀锌锌或锌镍合金。桥梁主体12am

(2) Galvanized zinc or zinc nickel alloy. Bridge body 12am

(3)气溶胶或气溶胶涂料。桥梁主体50am检测方法：按(GB1764-79漆膜厚度测量方法)磁测厚仪进行检测。

(3) Aerosol or aerosol coating. 50am detection method of bridge main body: magnetic thickness gauge shall be used for detection according to (gb1764-79 paint film thickness measurement method).

(4)粘附力——检测桥架自身的薄板的薄板或薄板的粘附强度。如果容易跌倒，则说明您没有资格。

(4) Adhesion - test the adhesion strength of the thin plate or thin plate of the bridge itself. If you fall easily, you are not qualified.

(5)镀锌锌和锌合金。根据测试，它不应脱落。

(5) Zinc and zinc alloys. According to the test, it should not fall off.

(6)气溶胶或气溶胶涂料。使用不低于(GB1720漆膜附着力测量方法)等级3的附着力测试仪进行检查。

(6) Aerosol or aerosol coating. Use an adhesion tester not lower than grade 3 of (gb1720 method for measuring adhesion of paint film) for inspection.

4.亮度。防护处理表面的光泽度不应小于60，并且可以直接显示光泽度计测得的数值。

4. Brightness. The gloss of the protective treated surface shall not be less than 60, and the value measured by the gloss meter can be directly displayed.

5.耐盐雾。表面保护层要具有表4中指定的3级耐盐雾性。

5. Salt fog resistance. The surface protective layer shall have grade 3 salt spray resistance specified in Table 4.

6.制造精度

6. Manufacturing accuracy

(1)桥长度的偏差。当长度小于或等于2米时，偏差为2mm3mm，当长度大于2mm时，偏差为4mm

(1) Deviation of bridge length. When the length is less than or equal to 2m, the deviation is 2mm 3mm, and when the length is greater than 2mm, the deviation is 4mm

(2)支撑臂处于自由状态时，垂直高度公差大为1/100

(2) When the support arm is free, the vertical height tolerance is greater than 1 / 100

(3)其他尺寸公差符合(GB1804-V尺寸公差)。

(3) Other dimensional tolerances comply with gb1804-v dimensional tolerances.

(4)桥面的平整度热浸镀锌防护处理的平整度不超过每米8mm。电镀锌和喷漆，防护处理的平整度公差不超过每米4mm

(4) The flatness of bridge deck shall not exceed 8mm per meter after hot-dip galvanizing protection treatment. The flatness tolerance of galvanizing, painting and protective treatment shall not exceed 4mm per meter

(5)桥梁宽度的偏差。当宽度大于400mm时，偏差为4mm，当宽度小于或等于400mm时，偏差为3mm。取盖板的正偏移量，取插槽底部宽度的负偏移量。

(5) Deviation of bridge width. When the width is greater than 400mm, the deviation is 4mm; when the width is less than or equal to 400mm, the deviation is 3mm. Take the positive offset of the cover plate and the negative offset of the bottom width of the slot.

7.电缆桥架要有良好的接地连接，当该桥架用连接板连接时，任何未上漆的点与接地端子之间的连接电阻不得大于0、1欧姆。

7. The cable tray shall have a good grounding connection. When the tray is connected with a connecting plate, the connection resistance between any unpainted point and the grounding terminal shall not be greater than 0 or 1 ohm.