起重机械是国家明文规定的特种设备,对于此类特种设备,国家对其设计、制造、安装和使用等专门制定了诸多条例法规。但是由于各方面的原因,其安全事故仍频繁发生。尤其是大型起重机械发生事故,往往是机毁人亡,令人触目惊心。而大型起重机械的应用领域广泛,应用数量众多,单台价格昂贵,动辄几百万甚至上千万,一旦出现事故,给施工单位和国家造成的损失是难以估量的。 Lifting machinery is a national express provision of special equipment, for such special equipment, the state of its design, manufacture, installation and use of a number of specially developed regulations. However, due to various reasons, its security incidents still occur frequently. Especially the accident of the large-scale hoisting machine, it is often machine-borne death, it is shocking. The large areas of application of heavy lifting machinery, the large number of applications, a single expensive, frequently millions or even tens of millions, in the event of an accident, the construction unit and the country caused the loss is immeasurable.