标准摘要
[中文适用范围]： 本技术报告旨在作为技术委员会根据 IEC 60664-1 规定产品尺寸要求的指南。需要考虑的重要事项如下：a) 标称系统电压或额定绝缘电压；b ) 产品的过压类别；c) 污染程度。低压设备（最高 2 000 m）的电气间隙和爬电距离尺寸图如图 1 所示。下面给出的所有参考资料均参考 IEC 60664-1。 [外文原描述]： A guide for technical committees specifying dimensioning requirements for products in accordance with IEC 60664-1. Significant items covered are as follows: a) nominal system voltage(s) or rated insulation voltage(s); b) overvoltage category of the products; c) pollution degree. A diagram for dimensioning of clearances and creepage distances for low-voltage equipment (up to 2 000 m) is also given. This is a technical report - type 3. Has the status of a basic safety publication in accordance with IEC Guide 104. This application guide is only applicable to IEC 60664-1 Ed.1 (1992).
英文名称Insulation coordination for equipment within low-voltage systems - Part 2-1: Application guide - Dimensioning procedure worksheets and dimensioning examples