What is the implementation standard of cable tray? Specifications, width, height and thickness of commonly used bridges
Release time:
2023-12-05
There are clear implementation standards for the product quality, laying and installation of cable tray. Similar standards include "JB/T 10216-2013 cable tray for electronically

There are clear implementation standards for the product quality, laying and installation of cable tray. Similar standards include "JB/T 10216-2013 cable tray for electronically controlled distribution" abbreviated as 2013 standard.
Bridge frame commonly used specifications are 400*100mm, 600*100mm, 800*100mm, etc., commonly used widths are 100mm, 200mm, 400mm, 600mm, etc., commonly used heights are 50mm, 100mm, 150mm, etc., commonly used thickness are 1.5mm, 2.0mm, etc.
For more details, please refer to the following: 1. When the wires in the cable tray are laid vertically, the cable wires should be fixed on the bracket of the bridge tray at an interval of 1.5 meters.
When laying horizontally, it should be fixed at the beginning and end of the cable, at turns and at intervals of 3 to 5 meters.
For cable tray laying, if the tray enters the room from the outside, the ladder tray is recommended in the outdoor section, and the sealing and impervious water treatment is carried out at the entrance to the wall.
When laying the cable tray, the shell of the cable tray with lightning protection requirements should be reliably connected with the lightning protection grounding device.
2. The national standard 2000 stipulates that the manufacture, engineering design and construction of the bridge shall not only implement this national standard, but also comply with the provisions of other existing national standards.
The national standards of cable tray include "JB/T 10216-2000 cable tray for electronically controlled distribution" (abbreviated as 2000 bridge standard) and "JB/T 10216-2013 cable tray for electronically controlled distribution" (referred to as 2013 bridge standard).
3. Bridge specification cable tray bend is an indispensable accessory in the process of cable tray installation.
The most common pre-sale work is for manufacturers and on-site technical confirmation of cable tray bending specifications, models, diameter-changing directions, etc.
The main material of cable bridge hanger is divided into suspender and cross pole.
Suspender materials are through wire, angle steel, C steel, channel steel.
The materials of the cross load are suspension frame (only for bridge frames of less than 100-50), angle steel, channel steel and C-section steel.
4. The width of the bridge when laying the cable tray, when the width of the bridge is greater than or equal to 400mm, the angle steel of 40mm*40mm*4mm, Φ 12 wire suspender and supporting expansion bolts are selected to make the hanger.
When laying the cable tray, the width of the bridge is less than 400mm, and the angle steel of 30mm*30mm*3mm, Φ 10 threaded suspender and matching expansion bolts are selected to make the hanger.
5. The distance between two groups of cable trays laid in parallel at the same height should be greater than or equal to 0.6m.
When the bridge route is drawn on the parallel diagram, the coordinates of the starting point, end point, turning point, branch point and landing point of the cable tray should be clearly marked.
When the cable tray needs to be bifurcated or extended in the upward or downward direction, a bend can be set, and a hinged plate can be used due to space constraints or special requirements.
Wider or higher connecting plates can be used when connecting two cable trays of different widths or heights.
6. Bridge thickness for trough cable bridge, the height of the connecting plate depends on the height of the bridge, and the width of the connecting plate depends on the width of the bridge.
The thickness of the connecting piece should be the same as that of the bridge tray, or one grade thicker.
For example, 200*100mm trough specification bridge, the thickness of the tray is 1.2mm, and the thickness of the cover plate of the bridge can be 1.2mm or 1.0mm.
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