The requirement to install metal cable trays is spelled out in laws and regulations. They will protect the wire from fire and mechanical damage. They are ideal for power and signal wiring systems. Boxes are perforated and all-metal. Res.ua specialists have prepared useful information and a description of the parameters that will be useful when choosing trays. The assortment can be seen here: https://res.ua /montazhni-virobi /korob-metaleviy-ta-aksesuari /.
Features
You can complete the cable tray and create a complete wiring system using:
- pivot corners;
- crosses;
- caps;
- holders.
Box width 50-600 mm, height 35-100, length 3 meters. With the help of additional partitions, you can divide the interior into two or more sections and lay wires of different types and purposes, for example, power and information.
The structure has no sharp elements, therefore, when installing it, the installer will not damage the cable, braid, hands, clothing. In rooms with high humidity, it is recommended to use a non-perforated cable tray. It will reliably protect the wires from overheating and provide additional ventilation. The cover will exclude moisture and dust penetration.
Types of trays and their characteristics
Manufacturers of electrical products produce four types of cable tray:
- unperforated;
- perforated;
- staircase;
- mesh.
Due to perforation, the total weight of the product is reduced, installation is simplified, the box becomes more resistant to loads. The products meet all fire safety requirements. A modern perforated tray will not allow the spread of fire along the track.
Staircases are characterized by high load-bearing capacity. They are suitable for routing power cables. They are used at production facilities, warehouses. The stamped tray is very similar in design to a ladder in which the sidewalls are fastened with jumpers. Mesh is used for the distribution of lightweight wires, communication networks.
When buying a non-perforated sheet metal tray, you can use it to perform grounding. A box is chosen taking into account its dimensions, capacity, geometry, and strength indicators. There are designs that allow you to lay a cable operating under a voltage of 1000 volts.
