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[单选题]
对于25Hz轨道电路,用0.06Ω标准分路电阻线在轨道电路轨面上分路时,轨道继电器端电压:旧型送受电端应不大于(),其前接点应可靠断开。
A.6V
B.7V
C.8V
D.9V
查看答案
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A.6V
B.7V
C.8V
D.9V
A.400mA
B.500mA
C.600mA
D.700mA
A.400mA
B.500mA
C.600mA
D.550mA
A.450mA
B.550mA
C.650mA
D.700mA
A.GB3-130/25
B.GB3-260/25
C.BGK-130/25
D.BGK-260/25
A.GB2-130/25
B.GB2-260/25
C.BGK-130/25
D.BGK-260/25