额定电压高于 1000 V AC 和 1500 V DC，以及高达 2000 V AC 和 3000 V DC 的设备的电气间隙、爬电距离和固体绝缘要求的确定指南

[中文适用范围]： IEC TS 62993 是一项技术规范，为处理额定电压超过 1000 V AC 且高达 2000 V AC 或额定电压超过 1500 V DC 且高达 3000 V 的设备的技术委员会提供了指导。直流电压。 IEC 60664-1 涵盖高达 1000 V AC 和 1500 V DC 的额定电压以及更高或更低的内部电压。本文件适用于海拔 2000 米以下的设备，并为更高海拔的使用提供指导。本文件为设备的电气间隙、爬电距离和固体绝缘提供了指导，以实现安全。它包括电气测试方法。注：功能绝缘的要求未指定，因为它们不被视为安全要求。本文件不涉及通过液体绝缘的距离；通过空气以外的气体，以及；通过压缩空气。 [外文原描述]： IEC TS 62993:2017 gives guidance to technical committees which deal with equipment having a rated voltage of more than 1 000 V AC and up to 2 000 V AC, or a rated voltage of more than 1 500 V DC and up to 3 000 V DC. Rated voltages up to 1 000 V AC and 1 500 V DC, as well as higher or lower internal voltages, are covered by IEC 60664-1. This document applies to equipment for use up to 2 000 m above sea level, and provides guidance for use at higher altitudes. This document gives guidance for clearances, creepage distances and solid insulation for equipment to achieve safety. It includes methods of electric testing. The contents of the corrigendum of June 2018 have been included in this copy.