当同一轨道上有多台桥式起重机作业时 ,为了防止碰撞 ,一般都是采取碰触限位器断电的方法。但当其中某台起重机需要检修时 ,这种方法往往会造成一些事故 ,如我们公司曾经发生多起压伤、摔下、甚至挤死检修人员的事故。虽然经常强调安全 ,在管理上采取一些措施 ,但事故仍不可避? When there are multiple overhead traveling crane on the same track, in order to prevent the collision, it is generally taken to touch the limiter power-off method. However, when one of the cranes is in need of overhauling, such an approach often results in accidents such as accidents in our company that once crushed, fell or even crashed over inspection personnel. Although often emphasize safety, take some measures in management, but the accident is still inevitable?