标准摘要
[中文适用范围]： 本国际标准适用于高压和低压设备的大电流测试和测量。它涉及稳态和短时直流电（例如在高功率直流测试中遇到的情况）、稳态和短时交流电（例如在高功率交流测试中遇到的情况）以及脉冲电流。一般而言，本国际标准考虑了高于 100 A 的电流，但在测试中可能会出现低于此值的电流。注：本标准还涵盖雷电脉冲测试等过程中的故障检测。本标准： ?定义所使用的术语； ？定义参数及其公差； ？描述了估计高电流测量不确定度的方法； ？规定完整的测量系统应满足的要求； ？描述了批准测量系统和检查其组件的方法； ？描述了用户证明测量系统满足本标准要求的程序，包括测量不确定度的限值。 [外文原描述]： IEC 62475:2010 is applicable to high-current testing and measurements on both high-voltage and low-voltage equipment. It deals with steady-state and short-time direct current (as e.g. encountered in high-power d.c. testing), steady-state and short-time alternating current (as e.g. encountered in high-power a.c. testing), and impulse-current. In general, currents above 100 A are considered in this International Standard, although currents less than this can occur in tests. This standard also covers fault detection during, for example, lightning impulse testing.
英文名称High-current test techniques - Definitions and requirements for test currents and measuring systems