【单选题】The high voltage section includes arc extinguishing chamber, ( ) , isolating switch and other parts.
【单选题】目前,我国采用以( )为基础的法定计量单位。
【判断题】Syntactically, Japanese is an isolating language.()
【判断题】Japanese is a syntactically isolating language.()
【判断题】The isolating switch itself has no arc extinguishing device and cannot switch off the high current.
【单选题】关于“ Isolating switch fuse ”的合理解释是()
【判断题】When switching off,the isolating switch opens to disconnect the circuit first.
【单选题】The isolating switch can ensure the safety of high voltage maintenance and repair, which of the following circuits needn’t an isolating switch: ______.
A.
circuit between high voltage bus bars and generator breaker
B.
circuit between high voltage bus bars and power distributing breaker
C.
circuit between high voltage bus bars and transformer breaker
D.
circuit between low voltage bus bars and power distributing breaker