A . c . metal - enclosed switchgear and controlgear for rated voltages above 1 kv and up to and including 52 kv ; amendment 1 额定电压大于1kv ,小于等于52kv交流金属开关和控制开关
Switches for household and similar fixed - electrical installations - particular requirements - firemen ' s switches 家用和类似用途的固定电气设备用开关.特殊要求.消防员控制开关
4 remote control handles shall be made of black nylon four - arm handle with nylon color - coded index buttons 远程控制开关是黑色的、尼龙十字型把手，当中是不同颜色标示的尼龙指示钮。
Low voltage switchgear and controlgear for industrial use ; control switches ; position switches 30 55 ; dimensions and characteristics 工业用低压开关装置和控制装置.控制开关. 30 55定位
Low - voltage switchgear and controlgear for industrial use ; terminal marking and distinctive number for particular control switches 工业用低压开关设备和控制设备.专用控制开关的辅助接
Lamp controlgear - particular requirements for d . c . or a . c . supplied electronic ballasts for discharge lamps excluding fluorescent lamps 灯控制开关.放电灯用交直流供电镇流器的特殊要求
The pressure difference determined electronically from the signals of the two sensors is used to control the switching point 两个压力传感器传出的电子信号表示压力的差别并控制开关点。
Low - voltage switchgear and controlgear for industrial use . control switches . position switches 30x55 . dimensions and characteristics 低压工业设备.尺寸.控制开关. 30 55行程开关.尺寸和特性
If necessary it may adopt series - wound temperature controlling switch to stick on the aluminum foil control temperature 对于大功率铝箔加热器可采用串接温度控制开关贴合在铝箔上进行温度控制
A . c . insulation - enclosed switchgear and controlgear for rated voltages above 1 kv and up to and including 38 kv ; amendment 1 额定电压大于1kv ,小于等于38kv绝缘金属壳交流开关和控制开关.第1次修改
