BS EN IEC 62053-21-2021 + A11-2021 PDF

Full title and description

BS EN IEC 62053-21:2021 + A11:2021 — Electricity metering equipment — Particular requirements — Part 21: Static meters for AC active energy (accuracy classes 0.5, 1 and 2). This entry denotes the British adoption (BS) of the European EN IEC 62053-21:2021 standard together with Amendment A11:2021 and specifies particular requirements and type-test provisions applicable to static (electronic) watt‑hour meters used for measurement of AC active energy in 50 Hz or 60 Hz networks.

Abstract

This standard (EN IEC 62053-21:2021, adopted as BS EN IEC 62053-21:2021 and amended by A11:2021) sets out the particular requirements and type‑test procedures for static watt‑hour meters of accuracy classes 0.5, 1 and 2 measuring alternating‑current active energy. It focuses on performance and type testing (including electromagnetic immunity and disturbance tests introduced by A11) and complements general metering test methods found in IEC/EN 62052‑11 and related documents.

General information

• Status: Current / Published (national adoptions active).
• Publication date: EN IEC 62053-21:2021 — May 1, 2021 (national publication dates vary); Amendment A11: approved May 19, 2021 and published July 22, 2021; BS adoption listed 4 Aug 2021.
• Publisher: British Standards Institution (BSI) as the UK adoption; original committee/publication via IEC and CENELEC (EN IEC 62053-21:2021).
• ICS / categories: 17.220.20 — Measurement of electrical and magnetic quantities (electricity metering equipment).
• Edition / version: EN IEC 62053-21:2021 (edition 2021) with Amendment A11:2021; published as BS EN IEC 62053-21:2021 + A11:2021 for the UK market.
• Number of pages: Main document commonly published in the range ~26–33 pages depending on national publication format; Amendment A11 is a short amendment of approximately 3 pages.

Scope

This part of IEC/EN 62053 applies only to static watt‑hour meters of accuracy classes 0.5, 1 and 2 intended to measure alternating‑current active energy in 50 Hz or 60 Hz networks and is concerned with their type tests only. It covers indoor and outdoor meter constructions where measuring element and register(s) are enclosed together, and it notes that additional functional elements (communication interfaces, tariff registers, time switches, etc.) are subject to their own relevant standards.

Key topics and requirements

• Definition of applicable accuracy classes (0.5, 1 and 2) and associated performance limits for active‑energy measurement.
• Type test procedures for static (electronic) watt‑hour meters (electrical, climatic and mechanical where relevant).
• Electromagnetic compatibility (EMC) immunity and disturbance tests added/clarified by Amendment A11 (radiated RF immunity, EFT/burst, conducted disturbances, oscillatory waves, magnetic field immunity, and conducted differential‑mode disturbances in relevant frequency ranges).
• Requirements for test outputs, operation indicators and registers; notes on multi‑function meters where other functional standards apply.
• Reference to general test methods and safety/dependability provisions located in IEC/EN 62052‑11 and related IEC series documents.

Typical use and users

Applied by electricity meter manufacturers (design and type testing), utility metering departments, independent test and calibration laboratories, conformity assessment and certification bodies, and national regulators setting metering requirements for billing and grid monitoring.

Related standards

Related and commonly cross‑referenced documents include IEC/EN 62052‑11 (general requirements, test methods for electricity metering equipment), other parts of the IEC 62053 series (for different meter classes and energy types, e.g., Parts 22, 23, 24), and national adoptions and national modifications of IEC 62053‑21. Amendment A11 also connects the document to EMC conformity pathways for Directive 2014/30/EU when cited as harmonized.

Keywords

electricity metering, static meter, watt‑hour meter, active energy, accuracy class 0.5, class 1, class 2, type tests, EMC immunity, EN IEC 62053-21, A11 amendment

FAQ

Q: What is this standard?

A: It is the European/IEC particular‑requirements standard for static AC active‑energy meters (classes 0.5, 1 and 2) adopted for UK use as BS EN IEC 62053-21:2021 with Amendment A11:2021, prescribing type‑test and performance requirements for such meters.

Q: What does it cover?

A: It covers performance limits, type test procedures (electrical, climatic, mechanical where applicable), EMC immunity/disturbance tests (as updated by A11), and requirements for registers, indicators and test outputs for static watt‑hour meters intended for 50 Hz or 60 Hz networks.

Q: Who typically uses it?

A: Meter manufacturers, design and test engineers, conformity assessment bodies, test laboratories, utilities and national regulators responsible for metering and billing accuracy.

Q: Is it current or superseded?

A: EN IEC 62053-21:2021 with Amendment A11:2021 is the current edition replacing earlier EN/BS versions (the 2003 edition and subsequent amendments). National catalogues show the 2021 edition and A11 as the active references (publication/adoption dates vary by national body).

Q: Is it part of a series?

A: Yes — it is one part of the IEC/EN 62053 series (particular requirements for electricity metering equipment); general test methods and other functional parts are covered in IEC/EN 62052‑11 and other parts of the 62053 family (e.g., Parts 22–24 for other meter types and classes).

Q: What are the key keywords?

A: static meters, watt‑hour meter, active energy, accuracy class 0.5/1/2, type testing, EMC immunity, EN IEC 62053-21, amendment A11