负荷计算的需要系数和同时系数

Demand Factor and Coincidence Factor for Load Computation

针对国内建筑电气需要系数法存在余量过大、变配电设备负荷率偏低的问题,结合国际工程惯例,探讨需要系数和同时系数的正确应用,提出:需要系数是针对安装容量,并且应用于终端配电箱的出线回路;电气设计中需要系数合理的取值对于负荷计算非常重要,应引起广大电气工程师的重视。

Targeting on ovedarge allowance and lower load rate of transformation and distribution equipment for demand factor method used by domestic architecture electrical discipline and in conjunction with international engineering practice, this paper illustrates correct application of demand factor and coincidence factor and proposes that demand factor is for installation capacity and used for transmission line circuit of terminal distribution box, and that the reasonable value of demand factor in electrical design is significant for load computation and shall be brought to the forefront by electrical engineers.