This national standard specifies the classification, technical specification, test method and test rules of general bridge cranes.
This national standard is applicable to the twin-beam general bridge cranes operating in general environment (hereinafter referred to as "cranes", and their fetching device is hook, grab bucket or magnechuck (lifting electromagnet), or made of two or three aforesaid means. The identical or analogous parts of special bridge cranes also can make references from this national standard.
GB/T 14405-1993 The following standards are cited: