【单选题】
ZD9-170/4k型电动转辙机摩擦电流为___ 。
A. 1.9A~2.3A
B. 2.0A~2.5A
C. 2.2A~2.6A
D. 2.3A~2.9A
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答案
C
解析
暂无解析
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ZD9-A220/2.5k型电动转辙机摩擦电流为___ 。
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【单选题】
ZD9转辙机挤岔时,表示接点动接点环的断电距离应大于___ 。
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