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根据水电工程设计概算编制规定,主要机电设备运杂费通常按机电设备价格的百分比计算,百分率根据运输方式和运距确定。而运输费用上涨与机电设备价格的上涨并非呈线形关系,从目前在建工程机电设备招标情况看,通常概算计算的运输费用均比招标的费用要高。为了更合理地确定锦屏一级水电站水轮发电机组运输费用,解决固定费率带来的计算差异,采用实物量法对其费用进行了计算。
According to the Compilation and Design Rules for Hydropower Engineering Design Budget, the transportation and miscellaneous charges of the main electromechanical equipment are usually calculated as a percentage of the price of the electromechanical equipment, and the percentage is determined according to the mode of transport and the distance to transport. However, the increase in shipping costs is not linear with the price rise of mechanical and electrical equipment. From the current situation of bidding for mechanical and electrical equipment under construction, the estimated shipping cost is usually higher than the cost of bidding. In order to more rationally determine the transportation costs of hydroelectric generator sets in Jinping I Hydropower Station and solve the calculation difference caused by the fixed rates, the physical quantity method was used to calculate the expenses.