BS EN IEC 62053-23-2021 + A11-2021 PDF

Full title and description

BS EN IEC 62053-23:2021 + A11-2021 — Electricity metering equipment — Particular requirements — Part 23: Static meters for reactive energy (accuracy classes 2 and 3). This consolidated British/European adoption contains the EN/IEC 62053‑23 2021 edition and Amendment A11 (2021), specifying technical and type-test requirements for static var‑hour (reactive energy) meters intended for 50 Hz and 60 Hz networks.

Abstract

This document sets out the particular requirements for static reactive‑energy meters of accuracy classes 2 and 3, covering type tests (design/type approval) for meters used on AC networks (50/60 Hz). It is based on a conventional definition of reactive energy for sinusoidal voltages and currents at the fundamental frequency and is intended for meters with integrated or detached displays and meters intended to operate up to 1 000 V. The standard focuses on type testing rather than on-service calibration or installation procedures.

General information

• Status: Current / Published (consolidated edition).
• Publication date: 5 August 2021 (consolidated BS EN IEC 62053-23:2021 + A11:2021). Base EN/IEC 62053‑23:2021 was published earlier in 2021; Amendment A11 was published later in 2021.
• Publisher: BSI (as BS adoption of EN IEC 62053‑23:2021/A11:2021).
• ICS / categories: 17.220.20 — Measurement of electrical and magnetic quantities (electricity metering).
• Edition / version: 2021 edition, consolidated with Amendment A11 (2021) — referenced as BS EN IEC 62053‑23:2021 + A11:2021.
• Number of pages: 26 (consolidated publication; national versions may show small page‑count differences).

Scope

This standard applies only to static var‑hour (reactive energy) meters of accuracy classes 2 and 3 intended for alternating current networks at 50 Hz or 60 Hz. It covers type tests (type approval and design verification) for meters that measure reactive energy, including meters with integrated or remote displays and meters installed in sockets or racks; practical considerations assume sinusoidal fundamental frequency components. It does not replace more general safety or reliability requirements covered by related IEC 62052/62059 series documents.

Key topics and requirements

• Definitions and conventional definition of reactive energy for sinusoidal fundamental frequency operation.
• Accuracy classes addressed: class 2 and class 3 for reactive energy measurement.
• Requirements for type tests applicable to static reactive‑energy meters (type approval tests, performance under specified conditions).
• Electrical ratings and application: operation on AC networks up to 1 000 V, for 50 Hz and 60 Hz systems.
• Consideration of instrument transformer arrangements including operation with low‑power instrument transformers (LPITs) where applicable.
• Requirements for metrological performance, environmental and electromagnetic conditions for type testing.
• Notes on scope exclusions: on‑site installation, routine in‑service testing and general safety/reliability — these are covered in related IEC/EN documents (e.g., IEC 62052‑11, IEC 62059 series).

Typical use and users

Manufacturers of static reactive energy (var‑hour) meters, metrology and type‑testing laboratories, certification and conformity assessment bodies, utilities and distribution companies specifying type‑approval requirements, and test laboratories verifying compliance of meters intended for commercial or statutory metering applications. Regulators and standards committees also refer to this standard when harmonising meter requirements.

Related standards

Key related documents include other parts of the IEC/EN 62053 series (active and reactive energy meter requirements), IEC 62052‑11 (general requirements, tests and test conditions for electricity metering equipment), IEC 61869 series (instrument transformers, including LPITs), and relevant EMC and safety standards cited in the EN/IEC adoption and amendment texts. The 2021 edition replaces earlier editions such as BS EN 62053‑23:2003 and amendment A1:2017.

Keywords

reactive energy; var‑hour meters; static meters; accuracy class 2; accuracy class 3; type tests; electricity metering equipment; IEC 62053; EN IEC; metrological requirements; LPIT.

FAQ

Q: What is this standard?

A: BS EN IEC 62053‑23:2021 + A11:2021 is the British/European adoption of the IEC requirements for static reactive‑energy (var‑hour) meters of accuracy classes 2 and 3, consolidated with Amendment A11 (2021).

Q: What does it cover?

A: It specifies particular requirements and type tests for static reactive‑energy meters (classes 2 and 3) intended for AC networks at 50 Hz or 60 Hz, focusing on design and type‑approval testing rather than in‑service procedures.

Q: Who typically uses it?

A: Meter manufacturers, test laboratories, conformity assessment bodies, utilities, and regulators use this standard for product development, type testing and certification.

Q: Is it current or superseded?

A: The 2021 edition consolidated with Amendment A11 (2021) is the current edition that replaced earlier versions such as BS EN 62053‑23:2003 and its A1:2017 amendment. Users should check national standards bodies for the latest national implementation or later amendments.

Q: Is it part of a series?

A: Yes — it is part of the IEC/EN 62053 series of standards covering particular requirements for electricity metering equipment (different parts address active energy meters, reactive fundamental component meters, and other meter types).

Q: What are the key keywords?

A: Reactive energy, var‑hour, static meter, accuracy class 2, accuracy class 3, type test, IEC 62053, EN IEC, metering equipment.