What is the thickness of the galvanized layer on the bridge frame?

According to different standards, the thickness requirements for the galvanized layer of the bridge frame may vary. Generally speaking, according to relevant standards in China, the thickness of the galvanized layer on ordinary cable trays should not be less than 60 μ m, while the thickness of the galvanized layer on lightweight cable trays should not be less than 30 μ m. The measurement method of galvanized layer thickness generally uses an eddy current thickness measuring instrument for detection. It should be noted that the above data only represents the general requirements in most cases, and the specific situation needs to be determined according to the actual usage scenario and requirements. For example, in certain special environments such as chemical plants, pharmaceutical factories, and other places with strong corrosiveness, the thickness of the galvanized layer may need to be higher to ensure the service life and safety of the bridge. Therefore, when selecting a bridge frame, in addition to the thickness of the galvanized layer, factors such as the material, structural form, and surface treatment of the bridge frame should also be comprehensively considered to ensure that it can meet actual usage needs.