In our life, we have the impression of the harm of electricity for electric shock injuring people and the flame shoot making a short circuit fault. We don't see much arc in real life. Electric arc is very harmful in the operation of electrified wire netting. How to restrain and reduce the negative influence of electric arc has been pursuing hardly by electrical designers all the time.Arc is a special form of gas discharge. Arcing is caused by the dissociation of gases, including metallic vapors.
The extinction of arc is due to the deionization of gas, which is mainly through recombination and diffusion. The arc chamber eliminates dissociation recombination. Recombination is the combination of positive and negative ions. Then they neutralized. In the arc chamber grid which is made of iron plate, the heat inside the arc can be rapidly exported, the temperature of the arc will reduce, the movement speed of ions can be reduced, and the recombination speed can be accelerated to extinguish the arc.
