Safe and effective operation of the hoist is dependent on correct classification of the hoist’s operation group. According to FEM9.511 and China standard the hoist’s operating group can be determined from load spectrum and average Daily operating time.
載荷譜LoadSpectrum
載荷譜可以根據下面表格確定
The load spectrum can be determined from the table below
輕級
偶爾吊滿載經常吊輕載
固定載荷輕
中級
偶爾吊滿載經常吊輕載
固定載荷半載
重級
重復吊滿載經常吊半載
固定載荷重
超重級
幾乎全吊滿載固定載荷超重
Light Occasional fullload Usually lightload
Small fixedload
Medium Occasional fullload Usually lightload
Average fixed load
Heavy Repetitive full load Usually average load
Heavy fixed load
Very Heavy
Usually almost full load Very heavy fixed load
日均當量使用時間Averagedailyoperatingtime
日均當量使用時間可以根據實際使用時間按統計方法測算,參考公式如下:
The average daily operating time of the hoist can be calculated from the running time of the hoisting machinery (Hours/day):
H = 平均起升高度 average hoisting height (m)
N = 平均每小時工作循環次數
number of work cycles per hour (cycles/h) T = 日均工作時間 daily working time (h)