标准摘要
[中文适用范围]： 本部分IEC 61858列出了对已建立的电气绝缘系统（EIS）进行 modification 的资格认证所需的试验程序，涉及其热分类。本标准适用于用于预绕式电气设备的EIS。试验程序具有比较性，即候选EIS的性能与参考EIS的性能进行比较，该参考EIS已根据IEC 60505拥有经过验证的服务经验，或者已通过IEC 60085或IEC 60034-18-31中给出的一种程序进行了评估。 [外文原描述]： IEC 61858-2:2014 lists the required test procedures for qualification of modifications of an established electrical insulation system (EIS) with respect to its thermal classification. This standard is applicable to EIS used in form-wound electrotechnical devices. The test procedures are comparative in that the performance of a candidate EIS is compared to that of a reference EIS, which has proven service experience in accordance with IEC 60505 or has been evaluated by one of the procedures given in IEC 60085 and IEC 60034-18-31.
英文名称Electrical insulation systems - Thermal evaluation of modifications to an established electrical insulation system (EIS) - Part 2: Form-wound EIS