交流1000V和直流1500V以下低压配电系统的电气安全保护措施的试验、测量或监测设备第12部分:功率测量和监测设备

[中文适用范围]： IEC 61557 的这一部分规定了电力计量和监控设备 (PMD) 的要求，这些设备测量和监控配电系统@内的电量以及可选的其他外部信号。这些要求还定义了额定电压高达 1 000 V AC 或高达 1 500 V DC 的单相和三相 AC 或 DC 系统的性能。这些设备是固定的或便携式的。它们适合在室内和/或室外使用。本文件中定义的电力计量和监控设备 (PMD)@ 提供了额外的安全信息@，有助于验证安装并增强配电系统的性能。本文档中描述的电气参数电能计量和监控装置 (PMD) 用于一般工业和商业应用。本文档不涉及功能安全和网络安全方面。本文件不适用于：符合 IEC 62053-21@ IEC 62053-22@ IEC 62053-23 和 IEC 62053-24 的电能计量设备。尽管如此，本文件中定义的有功和无功电能测量的不确定性源自 IEC 62053（所有部分）中定义的不确定性，以及 IEC 61557-2 至 IEC 61557-9 和 IEC 61557-13 或 IEC 61557-13 中定义的电气参数的测量和监测。 IEC 62020 电能质量仪器 (PQI) 符合 IEC 62586（所有部分） IEC 60051（所有部分）涵盖的设备（直接作用模拟电气测量仪器）。注 1：一般来说，此类设备用于以下应用或满足以下一般需求： 装置内部的能源管理@，例如促进 ISO 50001 和 IEC 60364-8-1 等文件的实施 监测和/或测量商业/工业设施内能源质量的电气参数测量和/或监控。注2：电气参数的测量和监测装置通常由多个功能模块组成。全部或部分功能模块组合在一台设备中。功能模块的示例包括： 同时测量和监控多个电气参数 能源测量和/或监控@ 以及有时遵守建筑法规方面的要求 报警功能 需求侧质量（电流和电压谐波@ 过压/欠压@ 电压骤降和膨胀@等）。注3：PMD历来被称为功率计@功率监视器@功率监视器装置@电能监测装置@功率分析仪@多功能仪表@测量多功能设备@电能表。注 4：Metering@ 测量和监控应用在附录 A 中进行了解释。 [外文原描述]： IEC 61557-12:2018 specifies requirements for power metering and monitoring devices (PMD) that measure and monitor the electrical quantities within electrical distribution systems, and optionally other external signals. These requirements also define the performance in single- and three-phase AC or DC systems having rated voltages up to 1 000 V AC or up to 1 500 V DC. These devices are fixed or portable. They are intended to be used indoors and/or outdoors. Power metering and monitoring devices (PMD), as defined in this document, give additional safety information, which aids the verification of the installation and enhances the performance of the distribution systems. The power metering and monitoring devices (PMD) for electrical parameters described in this document are used for general industrial and commercial applications. This document does not address functional safety and cyber security aspects. This document is not applicable for: – electricity metering equipment that complies with IEC 62053-21, IEC 62053-22, IEC 62053-23 and IEC 62053-24. Nevertheless, uncertainties defined in this document for active and reactive energy measurement are derived from those defined in IEC 62053 (all parts); – the measurement and monitoring of electrical parameters defined in IEC 61557-2 to IEC 61557-9 and IEC 61557-13 or in IEC 62020; – power quality instrument (PQI) according IEC 62586 (all parts); – devices covered by IEC 60051 (all parts) (direct acting analogue electrical measuring instrument). IEC 61557-12:2018 cancels and replaces the first edition published in 2007. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: a) PMD-A has been withdrawn due the fact these devices are now mainly covered by the IEC 62586 series of standards. b) Three categories of PMD have been created with a list of minimum required functions for each category. c) Added a new Annex A explaining the different applications linked to the relevant standards and devices, and another new Annex C about the power factor conventions. The contents of the corrigendum 1 (2022-09) have been included in this copy.