Abstract :
IN CIRCUIT breakers employing arcs submerged in liquids such as oil, carbon tetrachloride, or water, the surrounding liquid surface serves both to restrict the are space and to furnish a gas blast by rapid decomposition under the influence of the high temperature arc. The fiber tube of the common expulsion fuse acts in a similar manner. In the liquid circuit breakers, various devices are available to increase the interaction between arc and liquid, thus aiding in arc extinction.