色欲迷墙_亚洲成人美女xvideos_手机在线看片国产日韩生活片_最近韩国日本高清MV免费观看_yellow高清在线观看免费资源_空即是色1_91九色蝌蚪porny_另类图片综合网_色青片网站_韩国av免费观看_亚洲AV无码偷拍在线观看_aa级黄色毛片_亚洲精品久久久久AV无码_国产亚洲精品成人AA片小说_91涩涩视频_69SEX久久精品国产麻豆_影音先锋 av男人资源_无码欧美多人性站交大战_男人狂躁女人120秒视频_国产卡二卡3卡乱码免费

Company news

Precautions for the DC switch2022-08-21

1. Rated working voltage: should be greater than the DC circuit voltage.
2. Short-circuit breaking capacity: greater than the maximum short-circuit current through the DC circuit breaker.
3. The operation current and time between the upper and lower stages of the circuit breaker should be selective. After the rated current of the DC circuit breaker has been determined, its protection characteristics have also been determined, so the determined scheme should be as follows.
4. Dc bus contact electrical appliances should use DC disconnecting switch. But small capacity battery using single bus section wiring, the bus section electrical, DC circuit breaker can be selected, the protection selectivity depends on the engineering situation and different.

主站蜘蛛池模板: 海安县| 鹤岗市| 白玉县| 昌江| 连平县| 建始县| 平陆县| 都江堰市| 永定县| 沁水县| 余庆县| 平顺县| 齐河县| 新巴尔虎右旗| 齐河县| 吉安县| 肇源县| 汝城县| 思南县| 玉树县| 马关县| 越西县| 桑日县| 广安市| 英德市| 禹城市| 浮山县| 彰化市| 壤塘县| 甘德县| 忻城县| 宿州市| 屏东市| 罗定市| 辽阳市| 内江市| 泽州县| 淄博市| 昭觉县| 葵青区| 磴口县|