电气设计的负荷计算方法及其应用范围（Load calculation method of electrical design and its application range）.doc

电气设计的负荷计算方法及其应用范围（Load calculation method of electrical design and its application range） Load calculation method of electrical design and its application range The calculation methods of electric load include demand coefficient method, coefficient of utilization method, binomial coefficient method, power calculation per unit area, calculation method of power per unit product and so on. (1) demand factor method: the calculation load is calculated directly by multiplying the equipment power by the required coefficients and the simultaneous coefficients; (2) the method of coefficient of utilization: the average load of the maximum load class is calculated by the coefficient of utilization, then the influence of the difference between the equipment platform and the power difference is taken into account, and the maximum load factor is multiplied to obtain the calculated load; (3) binomial coefficient method: load is divided into basic load and additional load, and the latter takes into account the influence of a certain amount of large capacity equipment; (4) per unit area, power unit method, index method, unit power consumption method, can be used for preliminary design for estimating consumption indicators, for residential construction, in various stages of design can use power per unit area. Their range of application is different. According to the code for electrical design of civil buildings 3.4.2.1., the unit index method can be adopted in the design stage, and the demand factor method should be adopted in the preliminary design stage. Visible: civil building electrical load calculation recommended need coefficient method; this is because in the civil building electrical equipment has little power equipment especially, according to the demand coefficient method is simple; and in the industrial building, because the equipment for power save great difference, calculated and actual vary greatly with demand coefficient method. For example, a workshop uses electrical