Split type insulation input column for electrical measuring tool

An apparatus for performing electrical measurements according to the present disclosure includes a conductive first input column, a conductive second input column, and a bushing electrically insulating and at least partially surrounding the first input column and the second input column. The sleeve includes a first rib extending in a longitudinal direction of the sleeve and a second rib extending in the longitudinal direction of the sleeve. The first rib and the second rib are configured to separate the first input post and the second input post. 根据本公开的用于执行电气测量的装置包括导电的第一输入柱、导电的第二输入柱以及电绝缘且至少部分地围绕该第一输入柱和该第二输入柱的套管。该套管包括在该套管的纵向方向上延伸的第一肋和在该套管的该纵向方向上延伸的第二肋。该第一肋和该第二肋被构造为隔开该第一输入柱和该第二输入柱。