| 发明名称 |
Elektrische Isolierölmischung |
| 摘要 |
An electrical insulating oil composition having good low temperature characteristics which comprises at least 4 members selected from the group consisting of (a) m-ethylbiphenyl, (b) p-ethylbiphenyl, (c) o-benzyltoluene, (d) m-benzyltoluene, (e) p-benzyltoluene, (f) 1,1-diphenylethane, and (g) 1,1-diphenylethylene; and is characterized in that the proportion of solid phase at a temperature of -40 DEG C of the electrical insulating oil composition is not more than 45% by weight and the proportion of the total quantity of solid phase is calculated according to the following general equation of solid-liquid equilibrium: <MATH> wherein Xi is the equilibrium mole fraction of a component i in the liquid phase of the composition, DELTA H @ is the heat of fusion (cal.mol<-><1>), T @ is the melting point (K), T is the temperature (K), and R is the gas constant (cal.mol<-><1>.K<-><1>). |
| 申请公布号 |
DE3751965(D1) |
申请公布日期 |
1997.01.09 |
| 申请号 |
DE19873751965 |
申请日期 |
1987.09.04 |
| 申请人 |
NIPPON PETROCHEMICALS CO., LTD., TOKIO/TOKYO, JP |
发明人 |
SATO, ATSUSHI, TOKYO, JP;KAWAKAMI, SHIGENOBU, ICHIKAWA-SHI CHIBA-KEN, JP;ENDO, KEIJI, YOKOSUKA-SHI KANAGAWA-KEN, JP;DOHI, HIDEYUKI, YOKOHAMA-SHI KANAGAWA-KEN, JP |
| 分类号 |
H01B3/22;H01B3/44;(IPC1-7):H01B3/22;H01G4/22 |
主分类号 |
H01B3/22 |
| 代理机构 |
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