This standard specifies the classification and class of jib cranes and their mechanical equipment, excluding tower cranes, mobile cranes, and railway cranes, based on the number of operating cycles of the crane during its expected service life and the load spectrum factor based on the load condition. do. This standard applies to jib cranes and their parts defined in JIS B 0146-1: 2000.
JIS B 8822-4:2001 history
2001JIS B 8822-4:2001 Cranes and lifting appliances -- Classification -- Part 4: Jib cranes