高压测试技术 第2部分：测量系统

[中文适用范围]： IEC 60060-2:2025 适用于完整的测量系统及其组件，用于在实验室和工厂测试期间测量高压，测试电压包括 IEC 60060-1 规定的直流电压、交流电压、雷电和操作冲击电压以及组合和复合电压。有关现场测试期间的测量，请参阅 IEC 60060-3。本文件中规定的测量不确定度限值适用于 IEC 60071-1 中规定的测试水平。本文件的原则也适用于更高层次，但不确定性可能更大。本文档：• 定义所使用的术语； • 描述评估高压测量不确定性的方法； • 说明适用于测量系统的要求； • 描述批准测量系统和检查其组件的方法； • 描述用户证明测量系统满足本文件要求的程序，包括为测量不确定度设定的限值。第四版取消并取代了 2010 年出版的第三版。该版本构成技术修订。此版本与前一版本相比包括以下重大技术变化：a) 总体布局和文本已更新和改进，以使标准更易于使用。 b) 本文件已修订，以与 IEC 60060-1 第四版保持一致。 c) 扩大了测量不确定度估计的处理范围。 d) 本文件现适用于 IEC 60071-1 规定的所有标准绝缘水平测试中使用的测量系统。 e) 对于 IEC 60071-1 规定的所有标准绝缘水平的测试，标准雷电冲击电压前沿时间的测量不确定度要求已从 10% 更改为 15%。 f) IEC 60060-1:2010 第三版中定义的操作脉冲参数“峰值时间”在 IEC 60060-1 第四版中已被“波前时间”取代。为适应 IEC 60060-1 的这一变化，本文档已做出必要的修改。 g) 增加了第10章“组合电压的测量”和第11章“复合电压的测量”。 h) 对条款 B.1 进行了重大修改，使其与条款 5 的规定更加一致，包括使用相同的术语。 [外文原描述]： IEC 60060-2:2025 is applicable to complete measuring systems and to their components, used for the measurement of high voltages during laboratory and factory tests with direct voltage, alternating voltage and lightning and switching impulse voltages and combined and composite voltages as specified in IEC 60060-1. For measurements during on-site tests, see IEC 60060-3. The limits on uncertainties of measurements stated in this document apply to test levels stated in IEC 60071-1. The principles of this document apply also to higher levels but the uncertainty can be greater. This document: • defines the terms used; • describes methods to estimate the uncertainties of high-voltage measurements; • states the requirements that apply to measuring systems; • describes the methods for approving a measuring system and checking its components; • describes the procedures by which the user demonstrates that a measuring system meets the requirements of this document, including the limits set for the uncertainty of measurement. This fourth edition cancels and replaces the third edition published in 2010. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: a) The general layout and text has been updated and improved to make the standard easier to use. b) This document has been revised to align it with the fourth edition of IEC 60060-1. c) The treatment of measurement uncertainty estimation has been expanded. d) This document is now applicable to measuring systems used in testing at all standard insulation levels specified in IEC 60071-1. e) The measurement uncertainty requirement for the front time of the standard lighting impulse voltage has been changed from 10 % to 15 %, for testing at all standard insulation levels specified in IEC 60071-1. f) The parameter "time-to-peak" of the switching impulse defined in the third edition of IEC 60060-1:2010 has been replaced by "front time" in the fourth edition of IEC 60060-1. Necessary changes have been made in this document to accommodate this change in IEC 60060-1. g) Clause 10, Measurement of combined voltages and Clause 11, Measurement of composite voltages have been added. h) Clause B.1 has been significantly revised to align more closely with the provisions of Clause 5, including using the same nomenclature.