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公开(公告)号:US10155916B2
公开(公告)日:2018-12-18
申请号:US15537989
申请日:2016-02-04
申请人: HITACHI, LTD.
IPC分类号: C10M169/00 , C10M115/08 , C10M125/02 , H01H33/64 , C10M169/02 , C10M107/02 , C10M125/22 , H02B7/01
摘要: Provided is a lubricant for a gas insulated switchgear, with which properties of a base oil such as heat resistance, evaporation loss, fluidity under a low temperature, and chemical stability (oxidation resistance and HF resistance) are balanced at a level higher than the conventional level, and long service life and high reliability of the gas insulated switchgear are achieved. A lubricant for a gas insulated switchgear according to the present invention, contains: a base oil containing a polyalphaolefin having a kinematic viscosity at 40° C. of 50 mm2/s or more; and a thickener containing bisamides.