The surface anti-corrosion coating of cable tray mainly includes hot-dip galvanizing, galvanized nickel, cold galvanizing, powder electrostatic spraying, etc. Below, the manufacturer of the cable tray will introduce how to select the surface anti-corrosion coating for the cable tray.

资料显示：热浸锌工艺寿命不小于40年，适用于室外重腐蚀环境，造价高；镀锌镍工艺寿命不小于30年，也适用于室外重腐蚀环境，造价高；冷镀锌工艺寿命不小于12年，适用于室外轻腐蚀环境，造价一般；粉末静电喷涂工艺寿命不小于12年，适用于室内常温干燥环境，一般。

The data shows that the service life of hot-dip galvanizing process is not less than 40 years, which is suitable for outdoor heavy corrosive environment with high cost; The service life of galvanized nickel process shall not be less than 30 years, and it is also suitable for outdoor heavy corrosive environment, with high cost; The service life of cold galvanizing process shall not be less than 12 years. It is suitable for outdoor light corrosive environment and the cost is general; The service life of powder electrostatic spraying process shall not be less than 12 years. It is suitable for indoor normal temperature and dry environment. The price is average.

设计人员应该根据工程环境条件合理选择电缆桥架的表面防腐层类别，并在设计文件中清晰地表达。

The designer shall reasonably select the type of anti-corrosion coating on the surface of the cable tray according to the environmental conditions of the project, and clearly express it in the design documents.

电缆桥架在有防火要求的区段内，可在电缆梯架、托盘内添加具有耐火或难燃性能的板、网等材料构成封闭或半封闭式结构，并采取在桥架及其支吊架表面涂刷防火涂层等措施，其整体耐火性能应满足有关规范或标准的要求。在工程防火要求较高的场所，不宜采用铝合金电缆桥架。

In the sections with fire protection requirements for cable trays, plates, nets and other materials with fire-resistant or flame-retardant properties can be added to the cable ladders and trays to form a closed or semi closed structure, and measures such as painting a fire-resistant coating on the surface of the cable trays and their supports and hangers shall be taken. The overall fire resistance performance shall meet the requirements of relevant national codes or standards. Aluminum alloy cable trays should not be used in places with high fire protection requirements.

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The wonderful content of this article is provided by the knowledge provided by the cable tray. There are many wonderful content on this website. You can click to enter more content: https://www.sdhangfeng.com We have special customer service to answer your questions