作为电梯行业从业者,我觉得所谓的“电梯自救”是没有什么意义的,所以有没有科学依据我就不再做详细分析了。“电梯下坠”是我在工作中经常遇到的一种故障,实际上此时电梯并不是真的下坠了,而是出现了以下两种情况:1.电梯在运行过程中急停。这种情况一般是因为在电梯运行过程中,安全回路或者门锁回路断开了。2.电梯运行过程中出现故障并自动回到基站 As a lift industry practitioner, I think the so-called “elevator self-help ” is meaningless, so there is no scientific basis I will not do a detailed analysis. “Falling elevator ” is a kind of fault that I often encounter in my work. In fact, the elevator does not really fall down at this moment, but the following two situations occur: 1. The elevator is in emergency stop during operation. This is usually the case because the safety circuit or door lock circuit is disconnected during elevator operation. 2. Failure occurred during the elevator operation and automatically returned to the base station