標準號：SAE J 820-1998
中文標準名稱：起重機提升線性速度和功率試驗規則
英文標準名稱：Crane Hoist Line Speed and Power Test Code
標準類型：J80
發布日期：1998/7/1 12:00:00
實施日期：1999/12/31 12:00:00
中國標準分類號：J80
國際標準分類號：53.020.20
適用范圍：This code applies primarily to mobile cranes that lift loads by means of a drum and hoist line mechanism. It can be used to determine the hoist line speed and power of other hoist line mechanisms, if load can be held constant and power of other hoist line mechanisms, if load can be held constant and hoist line travel distance is sufficient for the accuracy of the line speed measurements prescribed. The object of this test is to determine the hoist line speed that a mobile crane develops while hoisting a specified load with a specified condition of rope layers on the drum. The specified load is reported in pounds and the hoist line speed in feet per minute. Values derived may be used to calculate hoist line power.