Статьи на тему: breakers.

Vacuum circuit breakers surround the circuit breakers in a vacuum, which helps reduce the risk of arcing when operating. They also provide more security from short circuits and overloads. If contacts split because of unintentional conditions, they produce an arc. This develops through the ionization process of metal ions. The arc quenching is done by vacuum media within this...Читать дальше О What You Need To Know About Used circuit breakers And Why »