Professional Cable Tray Manufacturer

Shandong Hongfeng Electric Group Co., Ltd.

The products can be widely used in construction, energy, power, plant.

What are the contents of the new national standard thickness standard of cable tray and the introduction of the thickness standard of cable tray

Release time:

2023-12-05

Bridge is the abbreviation of cable tray, which is widely used in various indoor and outdoor cable laying scenes.

Bridge is the abbreviation of cable tray, which is widely used in various indoor and outdoor cable laying scenes.
There are several national standards for bridges, among which "JB/T 10216-2013 Cable Tray for Electronic Control and Distribution" referred to as 2013 Bridge Standard is the most widely used, and "T/CECS 31-2017 Steel Cable Bridge Engineering Technical Specification Standard" is referred to as 2017 Bridge Standard, which adds a lot of thickness standards about environmental protection and energy saving steel bridge.
The bridge thickness standard not only stipulates the thickness standard of bridge plate, but also includes the thickness standard of bridge cover plate and connecting plate.
The relevant knowledge points are arranged as follows: 1. The national standard 2000 defines the scope of application of the bridge, citing standards, definitions, model codes, requirements, test methods and inspection specifications.
The 2013 national standard defines the normative citation documents, structural requirements, marking, transportation and storage of the bridge.
In the 2000 national standard, the name of the structural feature of tray bridge is perforated tray, code-named P.
In the 2000 national standard, the name of the structural feature of ladder bridge is ladder frame, and the code is T.
The 2000 national standard includes the calculation method of strength and stability of bridge structure, uniformly distributed load and conductivity experiment.
The 2013 national standard includes the number of ex-factory inspection samples and the determination array and the classification of unqualified type inspection.
In the 2000 national standard, the name of the structural feature of the assembled bridge is the assembled tray, and the code is Z.
In the 2000 national standard, the name of the structural feature of long-span trough bridge is bilateral unperforated pallet, code-named DC.
2. the thickness of the bridge in the bridge thickness standard will affect the safe working load of the bridge. for the bridge with the same span and the same specification, the thicker the plate thickness of the bridge is, the stronger the load-bearing capacity is, and the smaller the deflection value will be when bearing the load, that is, the smaller the amplitude of bending deformation.
According to the 2013 bridge standard, the thickness of galvanizing is greater than or equal to 12um, the thickness of hot-dip galvanizing is greater than or equal to 65um, and the thickness of fireproof coating is greater than or equal to 60um.VCI bimetallic coating thickness is required to be greater than or equal to 8um.
When the width of the clamped ladder frame in the bridge frame standard is greater than 150mm and less than or equal to 400mm, the thickness of the side plate should be at least 1.1mm, the thickness of the rung should not be less than 1.2mm, and the thickness of the cover plate should not be less than that of 0.7mm.
According to the standard of 2013 bridge, the width of tray and ladder is greater than 800mm. If it is made of steel, the thickness of bridge should be 2.2mm. If it is aluminum alloy, the thickness of bridge should be at least 2.5mm. If it is made of fiberglass, the minimum thickness of bridge should be 5.0mm.

Keywords：

What is the use of cable tray telescopic sheet, and the thickness standard of cable tray telescopic sheet

What is the latest content of the national standard for cable tray, and what are the materials and structure of cable tray?

What is the use of cable tray telescopic sheet, and the thickness standard of cable tray telescopic sheet

What is the latest content of the national standard for cable tray, and what are the materials and structure of cable tray?