建筑配线经济截面的选择方法探讨

Discussion on the Selection Method by Using Economic Section in Building Distribution Lines

低压配电系统的线损在节能方面已成为不可忽视的因素,现行电流密度系数在应用到低压配电系统尤其是建筑配线截面的校验中存在不足,寻求解决室内配线经济截面的方法显得尤为紧迫。通过对确定经济电流密度原理的分析,提出利用最短投资回收期作为确定经济截面的选择方法,并指出利用该方法应注意的一些问题。

Line loss of low-voltage distribution system has become an important factor in energy-saving field. The existing selection method of current density coefficient is not enough to apply in low-voltage distribution system, especially in the section verification of building distribution line. It is urgent to find a proper selection method to solve the problem of economic section for indoor distribution lines Through analyzing the of determination of economic principle current density, the authors put forward that it can make use of the shortest investment recovery period as the selection method to determinate economic section. And matter needing attention is also given.