IEC 62052-11:2020 (E) specifies requirements and associated tests, with their appropriate conditions for type testing of AC and DC electricity meters. This document details functional, mechanical, electrical and marking requirements, test methods, and test conditions, including immunity to external influences covering electromagnetic and climatic environments.
\nThis document applies to electricity metering equipment designed to:
\n\u2022 measure and control electrical energy on electrical networks (mains) with voltage up to 1 000 V AC, or 1 500 V DC;
\n\u2022 have all functional elements, including add-on modules, enclosed in, or forming a single meter case with exception of indicating displays;
\n\u2022 operate with integrated displays (electromechanical or static meters);
\n\u2022 operate with detached indicating displays, or without an indicating display (static meters only);
\n\u2022 be installed in a specified matching sockets or racks;
\n\u2022 optionally, provide additional functions other than those for measurement of electrical energy.
\nMeters designed for operation with Low Power Instrument Transformers (LPITs as defined in the IEC 61869 series) may be tested for compliance with this document and the relevant IEC 62053 series documents only if such meters and their LPITs are tested together as directly connected meters.
\nThis document is also applicable to auxiliary input and output circuits, operation indicators, and test outputs of equipment for electrical energy measurement.
\nThis document also covers the common aspects of accuracy testing such as reference conditions, repeatability and measurement of uncertainty.
\nThis document does not apply to:
\n\u2022 meters for which the voltage line-to-neutral derived from nominal voltages exceeds 1 000 V AC, or 1 500 V DC;
\n\u2022 meters intended for connection with low power instrument transformers (LPITs as defined in the IEC 61869 series of standards) when tested without such transformers;
\n\u2022 metering systems comprising multiple devices (except of LPITs) physically remote from one another;
\n\u2022 portable meters;
\n\u2022 meters used in rolling stock, vehicles, ships and airplanes;
\n\u2022 laboratory and meter test equipment;
\n\u2022 reference standard meters;
\n\u2022 data interfaces to the register of the meter;
\n\u2022 matching sockets or racks used for installation of electricity metering equipment;
\n\u2022 any additional functions provided in electrical energy meters.
\nThis document does not cover measures for the detection and prevention of fraudulent attempts to compromise a meter\u2019s performance (tampering).
\nThis second edition cancels and replaces the first edition published in 2003, and its amendment 1:2016. This edition constitutes a technical revision.
\nThis edition includes the following significant technical changes with respect to the previous edition:
\na) Removed all meter safety requirements; the meter safety requirements are covered in IEC 62052-31:2015;
\nb) Included requirements for meter power consumption and voltage requirements from IEC 62053-61; IEC 62053-61 is withdrawn;
\nc) Included requirements for meter symbols from IEC 62053-52; IEC 62053-52 is withdrawn;
\nd) Included requirements for meter pulse output devices from IEC 62053-31; IEC 62053-31 is withdrawn;
\ne) Added new requirements and tests including: meters with detached indicating displays, and meters without indicating displays, meter sealing provisions; measurement uncertainty and repeatability; time-keeping accuracy; type test report
\nf) Updated and clarified acceptance criteria for testing of external influences;
\ng) Revised and updated tests for immunity to electromagnetic influences and disturbances as per the latest editions of the basic EMC publications.<\/p>\n","protected":false},"excerpt":{"rendered":"
Electricity metering equipment – General requirements, tests and test conditions – Part 11: Metering equipment<\/b><\/p>\n\n\n
\n Published By<\/td>\n Publication Date<\/td>\n Number of Pages<\/td>\n<\/tr>\n \n IEC<\/b><\/a><\/td>\n 2020-06-29<\/td>\n 124<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":573463,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[285,2636],"product_tag":[],"class_list":{"0":"post-573452","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-17-220-20","7":"product_cat-iec","9":"first","10":"instock","11":"sold-individually","12":"shipping-taxable","13":"purchasable","14":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product\/573452","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media\/573463"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=573452"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=573452"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=573452"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}