Connection between medium voltage switch zones

摘要

The invention relates to an electrical connecting device for connecting separable connecting lines between at least two switch rooms, notably for medium-voltage switching units. The connecting lines are led through the housing walls and are surrounded by a rotationally symmetrical isolating body. The two switch rooms are surrounded by a shared insulating sleeve and the connecting lines are connected electroconductively by a contact device. The through bolts (DB1, DB2) have on their face side a multiple contact (MK) in the shape of an annular contact element, which serves to receive a contact stud (KB). Said contact stud (KB) consists of a single piece and has a spherical shape in the area of the multiple contacts (MK). The contact stud (KB) is surrounded by a shell (HS), which is curved towards the interior in the longitudinal middle area of the contact stud (KB) and electroconductively connected with same. The degrees of freedom in the angular, lateral and axial area are compensated for by this electrical connecting device. This type of electric connection device is used in medium-voltage switching units.