The isolation switch does not have a special arc extinguishing device in its structure, and it is not allowed to use it for pulling or closing operations with a load. When opening the isolation switch, it is necessary to

The main function of an isolation switch is to:

Open it up to the staff and equipment.

The operation of changing to another working state is called a switching operation. For example, in a dual busbar circuit, using an isolation switch connected to the busbar（

(3) Pull and close circuits with no current or low current. Although the high-voltage isolation switch does not have a special arc extinguishing device, it can cut off small electricity during the switching process

The switch allows the following circuits to be pulled and closed: