发明名称 |
Fire-retardant electric device. |
摘要 |
<p>An electric device particularly adapted for a fire retardant oil-filled transformer, comprising a cellulose-based insulating material impregnated with an insulating oil composed of 100 parts by weight of an ester of a polyol with a fatty acid having a fire point of 300 DEG C or above and, incorporated therein, 0.005 to 1.0 part by weight of a phenolic compound having no alkyl groups as the substituent at the ortho positions and 0.01 to 2.0 parts by weight of an epoxy compound.</p> |
申请公布号 |
EP0292025(A2) |
申请公布日期 |
1988.11.23 |
申请号 |
EP19880200138 |
申请日期 |
1988.01.27 |
申请人 |
NIPPON OIL CO. LTD. |
发明人 |
SHINZAWA, AKIRA;KOHNO, YOSHIKI |
分类号 |
H01B3/20;H01B3/00;H01B3/18;H01B3/54 |
主分类号 |
H01B3/20 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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