ASTM D5222 -石油起源高燃点电绝缘油的标准规范
日期:2012-02-08 09:46
tchgear.
1.2 High fire-point insulating oil differs from conventional mineral insulating oil by possessing a fire-point of at least 300C. High fire-point mineral insulating oils are also referred to as less flammable mineral insulating oils.This property is necessary in order to comply with certain application requirements of the National Electrical Code (Article 450-23) or other agencies. The material discussed in this specification is miscible with other petroleum based insulating oils. Mixing
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09/02 07:39