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US4493943A Electrical insulating oil and oil-filled electrical appliances 失效
电绝缘油和充油电器

Electrical insulating oil and oil-filled electrical appliances
摘要:
An improved electrical insulating oil and oil-filled electrical appliances impregnated therewith. The electrical insulating oil is quite suitable for use in oil-filled electrical appliances in which insulating materials or dielectric materials made of plastics are employed. The electrical insulating oil comprises (a) at least one member of diarylalkanes and (b) at least one member selected from the group of mono- and/or diolefins having two condensed or noncondensed aromatic nuclei.
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