An insulation cylinder is a cylindrical insulating component commonly used in high-voltage equipment to isolate and prevent current short circuits and leakage.
Insulated cylinders are generally made of materials with good insulation and high temperature resistance, such as ceramics or composite materials. In vacuum circuit breakers, insulation cylinders are mainly used to ensure sufficient electrical clearance between the various parts of the circuit breaker to prevent arcing or leakage caused by high voltage. The main performance characteristics of the insulation cylinder are its insulation performance and high temperature resistance, which enables it to maintain stable insulation effect in high temperature and high voltage environments