Electrical distribution cabinet features and applicable conditions

What is an low voltage distribution cabinet?

AC low-voltage power distribution cabinet is a new type of low-voltage power distribution cabinet designed according to the requirements of the competent superior of the Ministry of Energy, the majority of power users and the design department, and based on the principles of safety, economy, rationality and reliability. The product has the characteristics of high breaking capacity, good dynamic stability, flexible electrical scheme, convenient combination, strong series and practicability, novel structure and high protection level. It can be used as a replacement product for low-voltage switchgear.

AC low-voltage power distribution cabinets are suitable for power distribution systems with AC 50Hz, rated working voltage 380V, and rated working current up to 3150A for power users such as power plants, substations, factories and mining enterprises. for control.

Structural characteristics of power distribution cabinet

1. The structure of the switchgear cabinet is a general-purpose cabinet, which is manufactured with high-quality cold-rolled sheets. The frame is assembled with 8MF cold-drawn section steel by electric welding. The frame parts and channel steel skills are added to ensure the precision and quality of the cabinet.

2. The parts of the universal cabinet are designed according to the basic principle of the control module, and have 20-mode mounting holes, which have a high universality index, which reduces the production cycle time and improves the work efficiency.

3. The design of the cabinet takes into account the problem of heat removal during operation. There are different total number of blind heat exhaust holes on the left and right sides of the cabinet. When the heat generation in the cabinet reaches a certain amount, the heat generation increases and is discharged according to the upper blind holes, and the cold air is continuously filled into the cabinet from the lower blind holes, so that the The airtight cabinet generates an air flow channel from top to bottom to achieve the purpose of heat dissipation.

4. The cabinet is designed in accordance with contemporary industrial products, and the appearance of the cabinet is designed according to the principle of the golden ratio ratio, so that the proportion of LCL is effective, unique and new.

5. The hinge of the cabinet door is connected to the frame with a drive shaft-type theme movable door hinge, which is convenient for loading and unloading. The edge of the door is embedded with a mountain-shaped rubber and plastic product strip, which has a certain reduced stroke arrangement, which can avoid the immediate collision between the door and the cabinet, and also improve the protection level of the door.

6. The instrument panel door equipped with household appliances and electronic devices is connected to the frame with multi-core soft copper wires, and the installation parts in the cabinet and the frame are connected with extruded tap bolts, and the LCL forms a detailed protective grounding power circuit.

7. The cover of the cabinet can be removed when needed, which is convenient for the installation and adjustment of the main busway on the spot. The four corners of the cabinet are equipped with hooks for hoisting and transportation.

8. Busway, conductive members and insulated conductors.

9. The raw materials of bus ducts and conductive components are all made of high-conductivity copper materials.

10. The insulated wire is made of copper, and the insulated wire of the auxiliary power circuit is multi-core copper stranded wire.

11. Electroplating tin and tin lining at the lap joints of the busbars.

12. The top cover of the cabinet can be removed when necessary, which is convenient for the assembly and adjustment of the main busbar on site. The four corners of the cabinet top are equipped with lifting rings, which are convenient for lifting and shipping.

13. The protection class of the cabinet is IP30, and can also reach lP40.

Applicable conditions of electrical distribution cabinet

1. The ambient air temperature should not be higher than +40℃, not lower than -5℃, and the average temperature within 24h should not be higher than +35℃.

2. For indoor installation and use, the altitude of the place of use shall not exceed 2000m.

3. The relative humidity of the surrounding air does not exceed 50% when the maximum temperature is +40°C, and a larger relative humidity is allowed at lower temperatures, such as 90% at +20°C. Occasional condensation effects.

4. The inclination of the vertical plane should not exceed 5 degrees when the equipment is installed.

5. The equipment should be installed in a place without severe vibration and shock, and in a place that is not enough to cause corrosion of electrical components.

6. Users can negotiate with the manufacturer if they have special requirements.