Professional Cable Tray Manufacturer

Shandong Hongfeng Electric Group Co., Ltd.

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

The latest national standard for cable tray, what are the material and surface protection requirements

Release time:

2023-12-05

The latest national standards for bridges include many contents, including the specification requirements for bridge materials and the requirements for material surface protection.

Cable tray is a kind of cable tray protection device, which can prevent external hard objects from physically harming the cable.
The latest national standards for bridges include many contents, including the specification requirements for bridge materials and the requirements for material surface protection.
The relevant knowledge points are as follows: 1. The height of cable tray above 2.2m is suitable for laying cable tray, and 0.3m is the minimum distance from the top of the bridge to the ceiling or other obstacles.
50% is the minimum ratio of the cross-sectional area of the cable to the cross-sectional area of the tray.
Cable tray bend includes: vertical upper left bend, vertical upper right bend, vertical lower left bend, vertical upper left tee, vertical upper right tee, etc.
2. The name of the structural feature of tray-type bridge in the national standard 2000 is perforated tray, code-named P.
The name of the structural feature of ladder bridge in the 2000 national bridge frame standard is ladder frame and the code is T.
The national standards of cable tray include "JB/T 10216-2000 cable tray for electronically controlled distribution" (abbreviated as 2000 national standard) and "JB/T 10216-2013 cable tray for electronically controlled distribution" (abbreviated as 2013 national standard).
3. Bridge materials include cold-rolled plate, hot-rolled plate, galvanized plate and stainless steel. The surface protective layer technology of bridge material includes powder spraying, electrogalvanizing, hot-dip galvanizing and VCI bimetallic coating.
The anticorrosion treatment of the accessories of the bridge should be consistent with the main material of the bridge. Whether the surface treatment of various support and hanger materials is consistent with trays and ladders can be negotiated with the manufacturer and users.
4. The surface protection treatment of the accessories of the cable tray, such as the connecting piece, should be consistent with the protection requirements of the main structure of the bridge, and the surface protection treatment of the supporting supports and hangers should be determined according to the specific technical requirements of the project.
The surface protection treatment of cable tray accessories such as connecting plates should be consistent with the protection requirements of the main structure of the bridge, and the surface protection treatment of supporting supports and hangers should be determined according to the specific technical requirements of the project.

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