| 1. | Apply the vacuum arcing chamber , air insulation and includes electric spring operation mechanism so that the product arcing ability is strong , short open circuit times is many , no fire and explosion danger , convenient operation , it is the product of good performance , and strong usefulness
采用真空灭弧室，空气绝缘配以电动弹簧操动机构，使得产品灭弧能力强，短路开断次数高，无火灾爆炸危险，操作方便，是一种性能优良，实用性较强的产品。 |
