电桥架是一种用于支撑和保护电缆的设备，由于其安装过程中需要进行穿越建筑物的墙壁、楼板和隔墙等结构，因此会产生孔洞。为了保证建筑物的结构和防火性能，需要对这些孔洞进行封堵。电缆桥架孔洞封堵规范标准和  锌桥架是一种常见的电气设备支架，具有良好的耐腐蚀性能和机械强度。镀锌是指将铁制品浸入熔化的锌中，使其表面形成一层锌层。锌层能够起到防止氧化和腐蚀的作用，从而延长桥架的使用寿命。

Electric bridge frame is a type of equipment used to support and protect cables. Due to its installation process, it needs to pass through the walls, floors, and partitions of buildings, resulting in holes. To ensure the structural safety and fire performance of buildings, it is necessary to seal these holes. Cable tray hole sealing standard and zinc tray are common electrical equipment supports with good corrosion resistance and mechanical strength. Galvanization refers to immersing iron products in molten zinc to form a layer of zinc on their surface. The zinc layer can prevent oxidation and corrosion, thereby extending the service life of the bridge.

镀锌桥架的锌层厚度是一个重要的指标，它直接影响着桥架的耐腐蚀性能和机械强度。一般来说，锌层厚度越大，桥架的耐腐蚀性能越好。根据行业标准和规范，镀锌桥架的锌层厚度应符合以下要求：

The zinc layer thickness of galvanized cable tray is an important indicator, which directly affects the corrosion resistance and mechanical strength of the tray. Generally speaking, the thicker the zinc layer, the better the corrosion resistance of the bridge. According to industry standards and specifications, the zinc layer thickness of galvanized cable trays should meet the following requirements:

1、桥架表面应均匀、光滑，无气孔、皱纹、刮痕等缺陷。

1. The surface of the bridge should be uniform, smooth, and free of defects such as pores, wrinkles, and scratches.

2、锌层的平均厚度应符合标准规范要求，不能低于小厚度。

2. The average thickness of the zinc layer should meet the requirements of the standard specifications and cannot be lower than the minimum thickness.

3、锌层应具有良好的附着力，不能出现剥离、脱落等现象。

3. The zinc layer should have good adhesion and should not exhibit peeling, peeling, or other phenomena.

根据标准和行业规范，镀锌桥架的锌层厚度应满足以下要求：

According to national standards and industry norms, the zinc layer thickness of galvanized cable trays should meet the following requirements:

1、一般桥架的锌层厚度应不低于65μm。

1. The zinc layer thickness of general cable trays should not be less than 65 μ m.

2、桥架的焊接部位和切割边缘的锌层厚度应不低于50μm。

2. The zinc layer thickness of the welding parts and cutting edges of the bridge should not be less than 50 μ m.

3、桥架的内部和连接螺栓等部位的锌层厚度应不低于40μm。

3. The thickness of the zinc layer inside the bridge and connecting bolts should not be less than 40 μ m.

4、深部弯曲处的锌层厚度应不低于40μm。

4. The thickness of the zinc layer at the deep bend should not be less than 40 μ m.

需要注意的是，以上数据是根据常见的镀锌桥架的使用情况和要求得出的一般标准。对于特殊应用场景和要求更高的桥架，锌层厚度可能会有所不同。因此，在选择和使用镀锌桥架时，应根据具体情况和要求选择合适的规格和型号。

It should be noted that the above data is based on the general standards derived from the usage and requirements of common galvanized cable trays. For special application scenarios and higher requirements of cable trays, the thickness of the zinc layer may vary. Therefore, when selecting and using galvanized cable trays, appropriate specifications and models should be selected based on specific circumstances and requirements.

总结起来，镀锌桥架的锌层厚度是一个重要的标准规范，它直接影响着桥架的耐腐蚀性能和机械强度。根据标准和行业规范，一般桥架的锌层厚度应不低于65μm，不同部位的锌层厚度要求也有所不同。

In summary, the zinc layer thickness of galvanized cable trays is an important standard specification, which directly affects the corrosion resistance and mechanical strength of cable trays. According to national standards and industry norms, the zinc layer thickness of general cable trays should not be less than 65 μ m, and the zinc layer thickness requirements vary in different parts.

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