The vacuum degree of a switch is directly related to its insulation and arc extinguishing capability
The vacuum degree of a vacuum switch is its core performance indicator, directly related to the switch's insulation and arc extinguishing capability. Maintaining sufficient vacuum is key to ensuring the safe operation of the power system.
⚡️ Importance of Vacuum Degree
The core component of a vacuum switch is the vacuum interrupter. It needs to operate in a high vacuum environment to reliably extinguish arcs and isolate circuits.
Failure threshold: When the vacuum degree drops to a certain level, the switch will lose its breaking capacity. Typically, if the vacuum pressure of a high-voltage switch tube deteriorates to above 1.33×10⁻² Pa, it will lose its vacuum life.
