架空地线工频分流系数测试方法的探讨

架空地线工频分流系数是进行接地设计、计算的重要参数,它直接关系到设备、人身安全和工程投资,因而应尽可能准确确定。目前架空地线工频分流系数普遍采用的计算方法存在许多弊病,准确性差,且在工程计算中不具有可操作性。通过现场实测的方法来计算架空地线工频分流系数,操作简便,计算结果比较准确,可以克服目前计算方法普遍存在的弊病,为接地工程设计中接地电阻的计算提供依据。

Discussion on Measurement Methods of Working Frequency Current Division Factor of Overhead Ground Wire

Working frequency current division factor of overhead ground wire is an important parameter directly related to equipment and personnel safety and project investments.Therefore,it must be determined as accurately as possible.There are many disadvantages in existing calculation methods,resulting in poor accuracy and operability.It is a simple and relative accurate way to calculate working frequency current division factor of overhead ground wire through in-situ measurements,which overcomes existing computation methods' disadvantages and provides basis for ground resistance calculation in engineering design.