We all know the importance of the application of cable trays in the power system and the guarantee of the normal operation of our lives. Due to the different application environments, the types of bridge trays are also different. The tray-type cable trays are petroleum, chemical, light industry, TV, telecommunications The most widely used. It has the advantages of light weight, large load, beautiful shape, simple structure and convenient installation. Today we will take a look at the environmental requirements for the installation of tray cable trays:

1) The tray cable tray is suitable for both power cable installation and control cable laying. The surface treatment of the tray cable tray is divided into plating and painting, which can be specially anti-corrosive in heavy corrosion environment. The tray type cable bridge is equipped with a shield, and all its accessories are common to the tray type and trough type bridge.

2) Tray-type cable bridges, cable ducts and their supporting hangers are used in corrosive environments, and should be made of corrosion-resistant rigid materials, or adopt anti-corrosion treatment. The anti-corrosion treatment method should meet the requirements of engineering environment and durability .

3) In the section where the cable bridge is required to be fireproof, the fireproof or flame retardant plates, nets and other materials can be added to the cable ladder frame and tray to form a closed or semi-closed structure, and the bridge frame and its support are adopted. The fire resistance coating and other measures on the surface of the rack should meet the requirements of relevant national regulations or standards.

4) Aluminum alloy cable trays should not be used in places with high fire protection requirements.