Abstract: In the case of the metal-clad, compressed gas insulated high voltage structures, housings (1,7), whose longitudinal axes are positioned at angles to each other, must often be interconnected by way of an intermediate part (8). Two facility abutting rings (19,20) which have holes (22,32,23,33) respectively on an inner (21) and an outer (31) reference circle and which are interconnected at the inner reference circle (21) to the flange (9,10) of the housing as well as at the outer reference circle (31), serve as the intermediate part (8). The hole spacings .beta..sub.i, .beta..sub.a of the holes on both reference circles are chosen to be different so that they are able to add up to 90.degree. or 60.degree. respectively. On one of the rings (20), the holes (32) on the outer reference circle (31) are designed as slots (32), whose length is determined by an ##EQU1## By means of the intermediate part (8), all angles .+-..alpha. which lie in the range of .+-.90.degree. or .+-.60.degree.

Abstract: An arrangement for detecting dielectric breakdowns in a metal-clad, high-voltage installation made up of a plurality of component sections includes a thermal sensor for each of the sections wherein a dielectric breakdown may occur for sensing the temperature. The output of the thermal sensors feed a comparator which forms an output signal from at least two discrete signals from the thermal sensor. A circuit arrangement corresponding to the comparator identifies the thermal sensor associated with the component section wherein a dielectric breakdown has occurred.