Gas-insulated switchgear assembly having a viewing window for visual detection of the switching position of the switching contacts

摘要

Gas-insulated switching installation, in particular a gas-insulated medium-voltage - switchgear assembly, with at least one disconnector within the housing of the insulating gas chamber, wherein a viewing window (9) in the housing (10) inserted in such a / is fitted from outside of the housing directly or indirectly by means of optical means, the positions of the switch contact elements can be seen, that the viewing window (9) in such a manner in the housing (10) is arranged that, as a result, the hermetic sealing of the housing is maintained and that within the housing (10) is triggered via a pressure load, which is arranged in front of the bursting limit of the viewing window (9) is triggered.