When the vacuum in indoor GIS substations bequest gas exhaust system

摘要

the present invention is the indoor substation in GIS (Gas insulated Switchgear) vacuum exhaust gases during bequest relates to an apparatus, and more particularly, to prevent a malfunction of the vapor effective suction filtration by fire smoke detector that is generated during the vacuum operation is accompanied essentially assembling the GIS indoor substations, and to improve the working environment, efficient vacuum have been made In so improved indoor GIS substations it relates to a vacuum during bequest gas exhaust system. According to the invention, prevent a malfunction of the vapor effective suction filtration by fire smoke detector is generated when the vacuum of GIS indoor substations, and the visual range is effective to secure sufficiently to improve the operability. ;