Distribution Boxes Are Classified According To Structural Characteristics And Uses

(1) Fixed panel switch cabinet, often called switch board or power distribution panel. It is an open switch with a panel covering cabinet, the front has a protective effect, the back and sides can still touch the live parts, the protection level is low, and it can only be used for the continuity of power supply.And industrial and mining enterprises with lower reliability requirements, used for centralized power supply in the transformer room.

(2) Protective (namely enclosed) switchgear refers to a low-profile switchgear in which all sides except the installation surface are enclosed.Pressure switch cabinet. The electrical components such as switch, protection and monitoring control of this kind of cabinet are all installed in a steel or insulating material.It can be installed on the wall or away from the wall in the enclosed enclosure. There can be no isolation measures between each circuit in the cabinet, or it can be.

Use a grounded metal plate or insulating plate for isolation. Usually the door and the main switch are mechanically interlocked. There are also protective bench-type switch cabinet (ie console), on the panel is equipped with control, measurement, signal and other electrical appliances. Protective switchgear is mainly used for industrial power distribution device at the art scene.

(3) Drawer switch cabinet. This type of switch cabinet is made of steel plate to make a closed shell, and the electrical components of the incoming and outgoing circuits are all installed.

It is installed in a drawer that can be withdrawn to form a functional unit that can complete a certain type of power supply task. Functional unit and bus or cable between them, they are separated by a grounded metal plate or a functional plate made of plastic to form three areas: bus bar, functional unit and cable.

There are also isolation measures between each functional unit. The drawer type switch cabinet has higher reliability, safety and interchangeability, which is better than more advanced switch cabinets, most of the switch cabinets currently produced are drawer type switch cabinets. They are suitable for demanding power supply reliability higher industrial and mining enterprises and high-rise buildings serve as centralized control power distribution centers.

(4) Power and lighting distribution control box. Mostly closed vertical installation. Due to different use occasions, shell protection level also different. They are mainly used as power distribution devices at the production sites of industrial and mining enterprises.

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