When should cable tray be used? Jinan Bridge is a good choice for the installation of a large number of cables in one area, such as the motor control room, the outer shelf room for DCS, the meeting control room, etc. Large cable tray can be separated from the motor control, enter the place of appearance and motor location, and further extend to the operation site to reduce the scale.
Cable tray should be installed in the area where materials overflow, chemicals exposed and equipment damage is relatively small. In case of material overflow, it will be blocked by dry pulp, black liquor and various objects, causing fire hazard. In the process of equipment maintenance, welding sparks often fall on the pulp, causing cable tray fire. It happened in many places where there are cable trays.
For the smoke dispersion caused by cable tray fire, it is required to install fire prevention board in the straight or horizontal position. According to the inter factory fire prevention of combined cables and wires, it is recommended that the relatively small distance between cable trays should not be less than 0.6m. In the area of high chemical concentration, the installation of cable tray becomes very important.
The touch of any different metal will lead to electrolysis, and the direct touch of steel support and aluminum cable tray will lead to corrosion of cable tray and bracket. Glass fiber is not easily affected by this, but it will add cost. In such a harsh environment, the use of glass fiber may be in addition to PVC threading pipe outside the choice. In order to help reduce fire damage and chemical action, adding cable tray cover can avoid pulp, lime dust and minerals entering.
When should a conduit be used? When the environment of power and control lines is harsh, the number of cables is small, the area is full of obstacles, and chemical maintenance is required, the conduit is the right choice. When EMI shielding is required, the threading tube can also be selected.
The advantage of the device is that it can protect the power supply and control circuit from the damage of industrial environment. The purpose of any project is to standardize the installation for a long time, reduce the maintenance of threading pipe as much as possible, and the type of threading pipe used in many specifications is hot-dip galvanized threading pipe. In large cable installation, the threading tube can achieve the same effect with higher cost.
For small projects without so many wires, the threading tube is more economical. The threading pipe has a significant advantage of adhering to the electrical specifications. Once the device is finished, the possibility of moving and filling is very small. The cable tray is a challenge to adhere to the electrical specifications. Open cable tray can install more cables, but who will be responsible for the supervision?
In order to maintain the installed cables to a large extent, the threading tube is a better choice. FRP cable tray is also an ideal choice for chemical corrosion resistance, but if the cable is exposed in the atmosphere or environment, Jinan cable tray can be well supported.