电工用液体.电气设备用矿物绝缘油

[中文适用范围]： 本文件提供了未使用矿物绝缘油和回收矿物绝缘油（见第 3 条术语和定义）的规格和试验方法。它适用于按合同协议交付的矿物油，旨在用于变压器、开关设备和类似的电气设备中，这些设备需要油进行绝缘和热传递。本文件范围内的未使用油和回收油均未在电气设备中使用，也未接触过非用于制造、储存或运输的电气设备或其他设备。未使用的油是通过精炼、改性和/或掺混源自原始原料的石油产品和其他烃类制得的。回收油是之前用作电气设备矿物绝缘油、经卸出后在厂外采用再精炼或回收（再生）工艺处理的油。此类油最初应符合公认的未使用矿物绝缘油规范。本文件不区分回收矿物绝缘油所使用的具体方法。在设备现场处理的油（见 IEC 60422）不属于本文件范围。含添加剂和不含添加剂的油均在本文件范围内。本文件不适用于用作电缆或电容器浸渍介质的矿物绝缘油。 [外文原描述]： IEC 60296:2020 provides specifications and test methods for unused and recycled mineral insulating oils. It applies to mineral oil delivered according to the contractual agreement, intended for use in transformers, switchgear and similar electrical equipment in which oil is required for insulation and heat transfer. Both unused oil and recycled oil under the scope of this document have not been used in, nor been in contact with electrical equipment or other equipment not required for manufacture, storage or transport. Unused oils are obtained by refining, modifying and/or blending of petroleum products and other hydrocarbons from virgin feedstock. Recycled oils are produced from oils previously used as mineral insulating oils in electrical equipment that have been subjected to re-refining or reclaiming (regeneration) by processes employed offsite. Such oils will have originally been supplied in compliance with a recognized unused mineral insulating oil specification. This document does not differentiate between the methods used to recycle mineral insulating oil. Oils treated on-site (see IEC 60422) are not within the scope of this document. Oils with and without additives are both within the scope of this document. This document does not apply to mineral insulating oils used as impregnating medium in cables or capacitors. This fifth edition cancels and replaces the fourth edition published in 2012. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: – This International Standard is applicable to specifications and test methods for unused and recycled mineral insulating oils in the delivered state. – Within the transformer insulating oils, two groups, Type A and Type B, are defined, based on their performance. – A new method for stray gassing under thermo-oxidative stress of mineral insulating oils, which has been tested in a joint round robin test (RRT) between CIGRE D1 and IEC technical committee 10, has been included.