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[单选题]
JWXC£2.3型交流闭路式驼峰轨道电路送电端限流电阻应()。
A.不大于2Ω
B.不小于2Ω
C.不大于4Ω
D.不小于4Ω
查看答案
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A.不大于2Ω
B.不小于2Ω
C.不大于4Ω
D.不小于4Ω
A.230mA~330mA
B.272mA~292mA
C.280mA~330mA
D.380mA~580mA
A.56mA
B.110mA
C.120mA
D.207mA
A.继电集中电源屏
B.计算机联锁电源屏
C.驼峰电源屏和区间电源屏
D.25HZ轨道电源屏和三相交流转辙机电源屏
A.1600mm
B.1700mm
C.1800mm
D.1900mm