| 摘要 |
A three-pole, gas-insulated switch comprises inner and outer poles. A metallic encapsulation means is supported on a frame. Interrupter elements are arranged in respective pole housings and supported on encapsulation means via insulators. The pole housings are arranged with mutually parallel longitudinal axes. Each housing is connected to two bushings. The bushings have longitudinal axes in an axial plane of the respective pole housing. The interrupter elements are supported on the pole housings, the respective cover and the respective mechanism housing are fastened to the respective pole housing each by means of a circular arrangement of evenly distributed screw couplings. The pole housings are fastened to the frame by a further circular arrangement of screw couplings. The screw couplings have the same circumferential graduations therebetween as the screw couplings which fasten the mechanism housings to the pole housings.
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