1.1本规范涵盖了高燃点天然植物油酯绝缘液，用作新的和现有的配电电气设备（如变压器和辅助设备）的电介质和冷却介质。 1.2天然植物油酯绝缘液不同于传统矿物油和其他高燃点（或 “ 易燃性较低 ” )因为它是从植物油中提取的农产品，而不是从石油基础油中提炼或从有机前体合成的农产品。 1.3本规范旨在定义一种天然植物油酯电绝缘液体，该液体与现有设备的典型结构材料兼容，并在该应用中令人满意地保持其功能特性。 本规范中所述的材料不能与某些合成电绝缘液体混溶。用户应联系天然酯绝缘液的制造商以获取这方面的指导。 1.4本规范仅适用于任何加工前收到的新绝缘液。如果出现有关推荐特性或维护程序的问题，用户应联系设备或液体的制造商。 1.5 本标准并非旨在解决与其使用相关的所有安全问题（如有）。本标准的用户有责任在使用前制定适当的安全和健康实践，并确定监管要求的适用性。

1.1 This specification covers a high fire point natural vegetable oil ester insulating fluid for use as a dielectric and cooling medium in new and existing power and distribution electrical apparatus such as transformers and attendant equipment. 1.2 Natural vegetable oil ester insulating fluid differs from conventional mineral oil and other high fire point (or “ less-flammable ” ) fluids in that it is an agricultural product derived from vegetable oils rather than refined from petroleum base stocks or synthesized from organic precursors. 1.3 This specification is intended to define a natural vegetable oil ester electrical insulating fluid that is compatible with typical materials of construction of existing apparatus and will satisfactorily maintain its functional characteristic in this application. The material described in this specification may not be miscible with some synthetic electrical insulating liquids. The user should contact the manufacturer of the natural ester insulating fluid for guidance in this respect. 1.4 This specification applies only to new insulating fluid as received prior to any processing. The user should contact the manufacturer of the equipment or fluid if questions of recommended characteristics or maintenance procedures arise. 1.5 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory requirements prior to use.