Types of cable trays

Types of cable trays
Cable trays are an indispensable element of any modern electrical system that provides safe and organized laying of cables and wires. The choice of a suitable type of tray directly depends on operating conditions, quantity and type of cables, as well as safety requirements. A variety of types allows you to choose the optimal solution for any task.
1. Perforated trays
This is perhaps the most common type of cable trays. Their design is a metal perforated ribbon formed into a gutter. The holes provide ventilation, which is especially important for cables releasing heat. The perforated trays are easy, relatively inexpensive and easy to install. However, due to holes, they are less protected from mechanical damage and are not suitable for laying cables that require additional protection against dust and moisture. Their use is optimal in dry rooms with a small number of cables.
2. Solid trays
Unlike perforated, continuous trays have a whole metal surface without holes. This provides the best protection of cables from mechanical damage, dust and moisture. They are often used to lay responsible cables or in conditions requiring increased protection against external influences. However, continuous trays are worse dissipation of heat, which must be taken into account when laying heat -eating cables. Higher price and greater weight are two more factors that should be weighed when choosing this type of trays.
3. Host
The stair trays consist of two parallel lateral elements connected by transverse jumpers forming a staircase. This design provides good ventilation and access to cables, which simplifies their laying and maintenance. They are suitable for laying a large number of cables, especially in situations where easy access to them is required. However, this design provides less mechanical protection of cables compared to continuous trays, so their use is limited in places with an increased risk of damage.
In conclusion, the choice of the type of cable tray is an important stage in the design of the electric system. Given the features of each type, you can choose the best option that ensures safety, reliability and ease of operation.