Allowable standard of cable tray thickness

2021/10/0418:43:09 news 1957

cable tray The allowable standard content comes from "T/CECS 31-2017 Steel Cable Tray Engineering Technical Regulations" Part 3.5 Cable tray material and load characteristics _

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3.5 Material and load characteristics

3.5.1 The pallet and ladder frame should be made of cold-rolled steel plate. When the plate thickness is greater than 2mm, hot-rolled steel plate can be used. Its material should meet the requirements of Q235 steel in the current national standard "Carbon Structural Steel" GB/T700, and "Carbon Structural Steel Cold Rolled Steel Strip" GB/T716, "Carbon Structural Steel and Low Alloy Structural Steel Hot Rolled Relevant regulations of "Thin Steel Plate and Steel Strip" GB912 and "Continuous Hot-dip Galvanized Steel Plate and Steel Strip" GB/T2518.

3.5.2 The material of color coated steel plate pallet and ladder frame shall comply with the relevant regulations of the current national standard "Color coated steel plate and steel belt" GB/T12754.

3.5.3 The material of the mesh metal cable tray shall comply with the relevant regulations of the current national standard " high-quality carbon structural steel " GB/T699.

3.5.4 When the cable tray is made of stainless steel, stainless steel with the material designation 06Cr19Ni10N, 022Cr19Ni10N or 022Cr17Ni12Mo2 shall be used. 3.5.5 When the safe working load (SWL) is met and the length of the straight section is 2000mm, the minimum allowable thickness of each type of pallet plate shall comply with the values listed in Table 3.5.5-1. Table 3.5.5-2, and each type of ladder The minimum allowable thickness of the frame plates shall comply with the values listed in Table 3.5.5-3 to Table 3.5.5-5.

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