How To Distinguish The Price Of Power Distribution Cabinet According To Structural Characteristics And Uses
How to distinguish the price of Power distribution cabinet according to structural characteristics and uses?
(1) Drawer-type switch cabinet. This type of switch cabinet uses a closed shell made of steel plate. The electrical components of the incoming and outgoing line circuits are installed in a removable drawer to form a functional unit that can complete a certain type of power supply task. The functional unit and the busbar or cable are separated by a grounded metal plate or a functional board made of plastic, forming three areas: the busbar, the functional unit and the cable. There are also isolation measures between each functional unit. Drawer-type switch cabinets have high reliability, safety and interchangeability. They are relatively advanced switch cabinets. Most of the switch cabinets currently produced are drawer-type switch cabinets. They are suitable for industrial and mining enterprises and high-rise buildings that require high power supply reliability as a centralized control distribution center.
(2) Protective (i.e. closed) switch cabinet refers to a low-voltage switch cabinet with all sides closed except the installation surface. The switches, protection and monitoring control and other electrical components of this cabinet are installed in a closed shell made of steel or insulating material, which can be installed against or away from the wall. Each circuit in the cabinet can be isolated without isolation measures, or it can be isolated by grounded metal plates or insulating plates. Usually, the door and the main switch operation are mechanically interlocked. In addition, there are protective table-type switch cabinets (i.e. control consoles), on which control, measurement, signal and other electrical appliances are installed. Protective switch cabinets are mainly used as power distribution devices at process sites.
(3) Fixed panel switch cabinets, often called switch panels or distribution panels. It is an open switch cabinet with a panel shielding. The front has a protective function, and the back and sides can still touch the live parts. The protection level is low and can only be used in industrial and mining enterprises with low requirements for power supply continuity and reliability, as a centralized power supply for substations.
(4) Power and lighting distribution control boxes. Most of them are closed and vertically installed. The shell protection level varies depending on the use occasion. They are mainly used as power distribution devices at the production sites of industrial and mining enterprises.
