SS8型电力机车上，TJY3-4.5／11型风压继电器的作用是当停车制动风管风压低于（）时，继电器触头闭合，司机台上“停车制动”信号灯亮．提醒司机应采取措施。_高级机车电工_全学科试题题库

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SS₈型电力机车上，TJY3-4.5／11型风压继电器的作用是当停车制动风管风压低于（）时，继电器触头闭合，司机台上“停车制动”信号灯亮．提醒司机应采取措施。
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