这个法则是1931年美国的海因里希从统计许多灾害开始得出的。当时,海因里希统计了55万件机械事故,其中死亡、重伤事故1666件,轻伤48334件,其余则为无伤害事故。从而得出一个重要结论,即在机械事故中,死亡、重伤、轻伤和无伤害事故的比例为1:29:300,国际上把这一法则叫事故法则。这个法则说明,在机械生产过程中,每发生330起意外事件,有300件未 This rule was arrived at by Heinrich in 1931 from the statistics of many disasters. At that time, Heinrich counted 550000 mechanical accidents, of which 1666 were fatal and serious injuries, 48,334 were minor injuries, while others were non-injury accidents. This leads to the important conclusion that in the case of a mechanical accident, the ratio of death, serious injury, minor injury and injury-free accident is 1: 29: 300, which is internationally called the accident law. This law states that in the process of mechanical production, there are 330 unexpected accidents