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《Synthetic Lubricants》 2019-03
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Factors Affecting the Insulation Property of Hydraulic Oils

Fu Lixue;Chen Huiqing;Gui Yannan;Beijing Research Institute,Sinopec Lubricant Co.Ltd.;  
The insulated vehicle-mounted mobile elevating work platform used in power and communicationfields had special requirements for the electrical insulation performance of the hydraulic oils,which requiring thebreakdown voltage of the hydraulic oils not less than 20 kV.The influence on breakdown voltage of hydraulic oilsfrom the five aspects of base oil,additive,moisture,cleanliness and aging factor was discussed. Moisture andcleanliness were the key factors that affecting the breakdown voltage of hydraulic oils.Hydraulic oil blended withash package additive showed better electrical insulation performance in use. The anti-oxidation and anti-wearperformances of hydraulic oils would directly affect the retention of the electrical insulation performance ofhydraulic oils.(Chart1 Tables4 References7)
【CateGory Index】: TE626.38
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