IEC 62928-2017 PDF

Full title and description

Railway applications - Rolling stock - Onboard lithium‑ion traction batteries. This international standard defines the technical requirements, safety recommendations, operational parameters, data exchange, routine and type tests, marking and designation for onboard lithium‑ion traction battery systems used as energy storage for traction on railway vehicles (including applications referenced to series‑hybrid vehicles). It is intended to provide a unified baseline for design, manufacturing, testing and acceptance of onboard traction battery systems.

Abstract

IEC 62928:2017 (adopted as EN IEC 62928:2018 in Europe) sets out definitions and configuration conventions for traction battery systems, functional requirements for battery management and thermal management, electrical and mechanical design considerations, safety and protection recommendations, and the routine and type test regimes needed to demonstrate compliance for onboard lithium‑ion traction batteries in rolling stock. The document cross‑references relevant cell and battery safety standards and railway equipment standards to ensure consistency with broader railway engineering practice.

General information

• Status: Active / published international standard.
• Publication date: 7 December 2017 (IEC base publication); adopted as EN IEC 62928:2018 (European adoption 2018).
• Publisher: International Electrotechnical Commission (IEC); European adoption published by CENELEC/ national bodies as EN IEC 62928:2018.
• ICS / categories: 45.060.01 (Railway rolling stock in general).
• Edition / version: Edition 1.0 (2017).
• Number of pages: IEC original: 102 pages; EN IEC (European publication) common text/translation editions typically published as ~56–58 pages depending on national language edition.

Scope

Applies to onboard lithium‑ion traction battery systems used as energy storage for the traction function of railway rolling stock (including use in series‑hybrid vehicles as referenced in IEC 62864‑1). The standard covers system‑level requirements (battery packs/modules, BMS, BTMS), design, functional safety recommendations, operational parameter limits, required tests (type and routine), marking and data exchange requirements. It is not a cell‑level chemistry specification (cell safety and detailed cell tests are covered by specific battery/cell standards referenced within IEC 62928).

Key topics and requirements

• Definitions and system configuration (battery system, modules, packs, BMS, BTMS, ESS interface).
• Design and operational parameter requirements: allowable voltage ranges, charge/discharge control, ripple and current handling, insulation and clearances for onboard equipment.
• Battery management system (BMS) and battery thermal management system (BTMS) functional expectations, monitoring and data exchange formats for vehicle integration.
• Safety and protection recommendations including isolation for maintenance, fire‑safety considerations, signage/marking and procedures for safe handling; alignment with cell/battery safety standards (e.g., IEC 62619 / IEC 62620 where applicable).
• Routine and type tests: electrical, mechanical (shock & vibration), environmental and EMC tests, plus factory/acceptance testing and type‑approval tests relevant for rolling stock equipment.
• Marking, designation and documentation requirements to support interoperability, maintenance and in‑service traceability.
• References to relevant railway standards (environmental, EMC, shock & vibration, software and RAMS) to ensure integrated vehicle compliance.

Typical use and users

Used by battery and system manufacturers, rolling stock OEMs and integrators, railway vehicle designers, testing and certification laboratories, procurement and acceptance teams, and rail operators involved in specification, installation, commissioning and maintenance of onboard lithium‑ion traction battery systems. The standard supports design verification, type testing, factory acceptance and in‑service safety procedures.

Related standards

IEC 62928 references and sits alongside several railway and battery standards, commonly including IEC 62864‑1 (power supply with onboard energy storage — series hybrid systems), IEC 62619 / IEC 62620 (secondary lithium battery safety and industrial battery requirements), IEC 61373 (shock and vibration tests), IEC 61287‑1 (power converters on board rolling stock), IEC 62279 (railway software for control/protection systems), ISO 7010 (safety signage) and other EMC, insulation and RAMS standards used in rolling stock contexts. For integration and certification, users should consult the normative references listed in the standard.

Keywords

lithium‑ion traction battery, onboard battery, rolling stock, battery management system (BMS), battery thermal management (BTMS), energy storage system (ESS), railway, type tests, routine tests, marking, safety, IEC 62928.

FAQ

Q: What is this standard?

A: IEC 62928:2017 is an international standard that defines system‑level requirements, tests and safety recommendations for onboard lithium‑ion traction battery systems used in railway rolling stock. It provides a uniform technical baseline for design, testing and acceptance.

Q: What does it cover?

A: It covers system configuration and definitions, functional requirements for BMS and BTMS, electrical and mechanical design considerations, operational parameters, safety and protection guidance, required routine and type tests, marking and documentation for onboard traction batteries. It cross‑references cell/battery‑level safety standards for detailed cell testing.

Q: Who typically uses it?

A: Battery/system manufacturers, rolling stock OEMs and integrators, test laboratories, certification bodies, rail operators and procurement/acceptance teams specifying or validating onboard energy storage for traction.

Q: Is it current or superseded?

A: The IEC base publication was issued in December 2017 (Edition 1.0) and is published as IEC 62928:2017. It was adopted in Europe as EN IEC 62928:2018. The IEC webstore shows the standard as active with a stability date indicated by IEC (stable through the date listed by IEC's publication metadata); users should confirm the latest consolidated/corrigenda or amendments from IEC or their national body for any updates beyond the original 2017 edition.

Q: Is it part of a series?

A: IEC 62928 itself is a single‑part international standard (Edition 1.0, 2017). It forms part of the broader set of railway‑application standards and should be used together with related standards (for example IEC 62864‑1 for series hybrid systems, IEC 62619/62620 for cell/battery safety and industrial battery requirements, and other rolling stock standards).

Q: What are the key keywords?

A: Lithium‑ion, traction battery, onboard battery, rolling stock, BMS, BTMS, energy storage system (ESS), safety, type tests, routine tests, marking.