IEC 62055-31:2022适用于新制造的用于直接连接的精度等级为0、5、1和2的静态电度表，用于测量频率在45 Hz至65 Hz范围内的交流电能消耗，包括电源控制开关，用于根据支付电表中维护的可用信用的电流值中断或恢复对负载的电力供应。它不适用于连接端子两端的电压超过1 000 V（多相系统电表的线对线电压）的静态电表。它适用于室内应用的支付表，在正常气候条件下运行，其中支付表安装用于正常服务（即。e.以及指定的匹配插座（如适用）。支付表是所有主要功能元件与任何指定的匹配插座一起集成在单个外壳中的实现。还存在多设备支付计量装置，其中各种主要功能元件(诸如测量元件、用户接口单元、令牌载体接口和供应控制开关)在多于一个外壳中实现，涉及附加接口。本文件中还定义了适用于支付表的功能要求，包括附录A中预付费操作模式的信息性基本功能要求和测试。考虑到了实践中可能发现的相对广泛的特征、选项、替代方案和实现。支付仪表的不同性质和功能阻止了针对所有这些要求的详细测试方法的全面规范。然而，在这种情况下，以这样的方式陈述要求，即然后可以制定测试以尊重和验证被测试的支付计量器的特定功能。本文件不涵盖电路保护、隔离或类似目的的特定功能或性能要求，这些要求可能通过参考其他规范或标准来指定。从1.0版中删除的安全要求已被新制造电表的产品安全标准IEC 62052-31:2015中包含的安全要求所取代。IEC 62052不涵盖在役安全测试（ISST）-31:2015并留给国家最佳实践，通常作为现有计量稳定性在职测试(IST)的扩展。本文档不涵盖软件需求。本文档仅涵盖型式测试要求。对于验收测试，IEC 62058中给出的要求？11:20 08和IEC 62058-31:2008。IEC 62059系列标准涉及可靠性方面。IEC TC 56提供了额外的可靠性、可用性、维护和生命周期方面。本文件不涵盖某些市场的法律或其他要求可能需要的符合性测试和系统符合性测试。第二版取消并取代了2005年出版的第一版。本版构成技术修订版。 与上一版相比，此版本包括以下重大技术变更:a)标题已修改。 b)删除附件C中与电源控制开关要求相关的内容，并增加了对包含相关要求的IEC 62052-31:2015的引用。

IEC 62055-31:2022 applies to newly manufactured, static watt-hour payment meters of accuracy classes 0,5, 1 and 2 for direct connection, for the measurement of alternating current electrical energy consumption of a frequency in the range 45 Hz to 65 Hz that include a supply control switch for the purpose of interruption or restoration of the electricity supply to the load in accordance with the current value of the available credit maintained in the payment meter. It does not apply to static watt-hour payment meters where the voltage across the connection terminals exceeds 1 000 V (line-to-line voltage for meters for polyphase systems). It applies to payment meters for indoor application, operating under normal climatic conditions where the payment meter is mounted as for normal service (i.e. together with a specified matching socket where applicable). Payment meters are implementations where all the main functional elements are incorporated in a single enclosure, together with any specified matching socket. There are also multi-device payment metering installations where the various main functional elements, such as the measuring element, the user interface unit, token carrier interface, and the supply control switch are implemented in more than one enclosure, involving additional interfaces. Functional requirements that apply to payment meters are also defined in this document, and include informative basic functional requirements and tests for the prepayment mode of operation in Annex A. Allowances are made for the relatively wide range of features, options, alternatives, and implementations that may be found in practice. The diverse nature and functionality of payment meters prevent the comprehensive specification of detailed test methods for all of these requirements. However, in this case, the requirements are stated in such a way that tests can then be formulated to respect and validate the specific functionality of the payment meter being tested. This document does not cover specific functionality or performance requirements for circuit protection, isolation or similar purposes that may be specified through reference to other specifications or standards. Safety requirements removed from Edition 1.0 have been replaced with references to the safety requirements now contained in IEC 62052-31:2015, the product safety standard for newly manufactured electricity meters. In-service safety testing (ISST) is not covered by IEC 62052-31:2015 and is left to national best practice usually as an extension of existing in-service testing (IST) of metrology stability. This document does not cover software requirements. This document covers type-testing requirements only. For acceptance testing, the requirements given in IEC 62058？11:2008 and IEC 62058-31:2008 may be used. Dependability aspects are addressed in the IEC 62059 series of standards. Additional reliability, availability, maintenance and life cycle aspects are provided by IEC TC 56. This document does not cover conformity tests and system compliance tests that may be required in connection with legal or other requirements of some markets. This second edition cancels and replaces the first edition published in 2005. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
a) Title modified.
b) Removal of the contents of Annex C relating to the requirements for the supply control switch, and added reference to IEC 62052-31:2015 which contains the relevant requirements.