How to select a ladder cable tray?
1. Channel cable trays and their supports for corrosive environments should be made of corrosion-resistant rigid materials or undergo corrosion protection treatment, which must meet the requirements of the engineering environment and durability.
2. In sections with fire prevention requirements, fire-resistant or flame-retardant materials such as boards and meshes can be added inside cable ladder racks and trays to form a sealed or semi-enclosed structure. Measures such as applying fire-retardant coatings on the bridge and its support brackets should be taken, ensuring the overall fire resistance meets national specifications or standards.
3. In locations with high engineering fire protection requirements, it is not advisable to use aluminum alloy cable trays.
4. The selection of the width and height of the channel cable tray should comply with the filling rate requirements.
5. When selecting the load class of cable trays, the working uniform load of the cable tray should not exceed the rated uniform load of the selected load class. If the actual span of the support and suspension架 of the cable tray is not equal to 2m, the working uniform load must meet the requirements.
6. Components and suspension brackets should match the specifications and dimensions of the tray, straight sections of the ladder rack, and bend series under conditions of meeting the corresponding load.
7. When selecting the bend or lifting/lowering devices for槽式电缆桥架, they should not be smaller than the allowable bend radius for the cables within the cable tray.
Diameter.
8. For steel cable trays with spans exceeding 6 meters, or for spans exceeding 2 meters or with high load-bearing requirements,
For aluminum alloy cable trays of Load Class D, calculations or tests for strength, rigidity, and stability should be conducted or verified according to engineering conditions.
9. When several cable trays are laid parallel at the same height, maintenance and repair distances between adjacent cable trays should be considered.
10. Standard length for straight sections of trough cable ladder can be 2, 3, 4, or 6 meters.
Yunnan Ziyang Zongjiu Industry & Trade Co., Ltd. is a cable tray manufacturer in Yunnan, specializing in tray production and processing for many years. We offer factory-standard pricing, galvanized, fire-retardant, and installed trays. If you're in need of purchasing cable trays, please feel free to call for detailed discussions!!
