The control cabinet is according to the requirements of electrical wiring to assemble switchgear, measuring appearance, maintenance appliances and auxiliary equipment in a closed or semi-closed metal cabinet or screen panel, and its arrangement should meet the requirements of the normal operation of the power system, easy to overhaul, and not to endanger the safety of people and surrounding equipment. During normal operation, the circuit can be switched on or off with the help of manual or automatic switches. In case of failure or abnormal operation, the circuit is cut off or alarmed with the help of maintenance appliances. By measuring the appearance, various parameters in operation can be displayed, and some electrical parameters can also be adjusted, and the abnormal operating conditions can be prompted or announced. It is often used in various power generation, distribution and substations.
The distribution box is made of non-combustible materials; Production sites and offices with low risk of electric shock can be equipped with open switchboards; In processing workshops, casting, forging, heat treatment, boiler rooms, carpentry rooms and other places with a high risk of electric shock or poor working environment, closed cabinets should be installed; In places where there is a risk of conductive dust or flammable and explosive gases, it is necessary to install closed or explosion-proof electrical facilities; The electrical components, appearance, switches and circuits of the distribution box should be arranged in a regular manner, the device should be sturdy and easy to operate.
In any case, it is necessary to adapt the connection equipment to the cross-sectional area of the wire and the nature of the data, and the wiring of the wire and the terminal, generally only one wire is connected to a terminal. When some terminals are not suitable for connecting flexible wires, cold-pressed terminals such as pins and forks can be selected on the end of the wire.
If a specially planned terminal is selected, two or more wires can be connected, but the connection method of the wire must be a variety of experienced methods, such as clamping, crimping, welding, winding, etc. In addition to the necessary soldering method for the joint of the wire, all the wires should be cold-pressed terminals. If the electrical equipment receives a large oscillation during operation, welding is not allowed. The connected wire connection must be strong and not loose.
1. The device plate with a thickness of 25mm and 2.5mm from the ground has a 20mm wide U-shaped curved edge at both ends, which makes the device plate stronger and easy to handle.
2. The three cable introduction cover plates at the bottom of the box can replace each other, which is convenient to move, easy to import cables, and easy to open holes into the line.
3. There are grounding bolts on the door 5. The load-bearing hinge device is simple, and it is also simple to change the cabinet door. The door can be opened 130°.
4. The plastic slider can be used to pass through the guide rail, and the device board can be pushed into the cabinet from the front of the cabinet 7. The consolidated rectangular frame can not only strengthen the strength of the front door, but also be used to fix the electrical components of the device (with the horizontal bar of the door device).
5. The backplate can be easily installed and fixed with screws; Doors can also be replaced.
6. Standard MS821 lock, upper, middle and lower three-point locking cabinet door.
7. Sealing ring: polyurethane foam sealing strip to ensure the protection level.
8. Add a waterproof edge to the door frame and cooperate with the door sealing ring to prevent water and dust from falling into the cabinet.
9. (Single door) left and right interchangeable door opening planning, easy to use. Standardize the hole planning of modular devices to facilitate devices.
10. Inner lamp, convenient device and detection (optional).
11. Document bag, convenient for on-site operation (optional).
12. The device beam can be installed in the cabinet without using the device board (optional).
13. Fan and filter screen to ensure ventilation in the cabinet, protection level IP54 (optional).
14. Base, fixed, movable, disassembled, and installed are very convenient (optional).
15. Double device plate, large device capacity (optional).
16. a door device strip and a convenience device.
17. The full-frame side panels, front and rear doors, top plates and bottom plates of the cabinet can be removed, which can adapt to various requirements and facilitate device maintenance.
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