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What are the national standard thickness acceptance standards of cable tray and the thickness deviation of cable tray?

Release time:

2023-12-07

The national standards of cable bridges include the types and varieties of bridges, the specifications of trays and ladders

The national standards of cable bridges include the types and varieties of bridges, the specifications of trays and ladders, and the selection of load grades, while the national standards of cable bridges include the commonly used specifications and dimensions, plate thickness and rated uniformly distributed load grades.
The national standard of cable bridge stipulates that the surface of the bridge should be neat and smooth, the color and luster should be uniform, and cracks, burrs and other defects are not allowed.
The national standard of cable tray also requires that the anodized surface is not allowed to have electric burns, exposure and other phenomena that affect the use.
According to the cable tray standard, the width of trays and ladders is greater than 150mm and less than or equal to 300mm. If it is made of steel, the thickness of the tray shall be 1.2mm. If it is aluminum alloy, the thickness of the tray shall be at least 1.5mm. If it is made of FRP, the minimum thickness of the tray shall be 3.5mm.
According to the cable tray standard, the width of trays and ladders is greater than 300mm and less than or equal to 500mm. If it is made of steel, the thickness of the tray shall be 1.5mm. If it is aluminum alloy, the thickness of the tray shall be at least 2.0mm. If it is made of FRP, the minimum thickness of the tray shall be 4.0mm.
The thickness of the bridge cover plate is allowed to have deviation, and the thickness of the bridge cover plate can be consistent with the thickness of the bridge plate, or a grade deviation can be lower.
For example, the thickness of bridge plate is 1.2mm, the thickness of bridge cover plate can be 1.0mm, and the deviation is 0.2mm.
For example, the thickness of bridge plate is 1.5mm, the thickness of bridge cover plate can be 1.2mm, and the deviation is 0.3mm.

Keywords：

What is the national standard thickness of cable tray and the relationship between thickness and load

Steel cable bridge engineering design code standard, bridge thickness standard definition

What is the national standard thickness of cable tray and the relationship between thickness and load

Steel cable bridge engineering design code standard, bridge thickness standard definition