根据电气钢板、钢带和叠片的一般成分、相对绝缘能力和功能，对其表面绝缘进行分类。 这些表面绝缘要么是氧化层，要么是涂层。 本分类的目的是为各种类型的表面绝缘创建一个术语，并通过提供有关表面绝缘的化学性质和使用的一般信息来帮助表面绝缘的用户。 本分类的目的不是根据表面绝缘电阻的具体值规定绝缘要求。此类要求由买方和钢铁生产商（如适用）商定。 该分类与冷轧电工钢的各种规范一起使用（参见IEC 60404-8系列第2条中的标准）。

Establishes a classification of surface insulations for electrical steel sheet, strip and laminations according to their general composition, relative insulating ability and function. These surface insulations are either oxide layers or applied coatings. The purpose of this classification is to create a nomenclature for the various types of surface insulations and to assist users of surface insulations by providing general information about the chemical nature and use of the surface insulations. It is not the intent of this classification to specify insulation requirements in terms of specific values of surface insulation resistance. Such requirements are agreed between the purchaser and the steel producer, where applicable. The classification is used in conjunction with the various specifications for cold rolled electrical steels (see the standards in the IEC 60404-8 series in Clause 2).