UNE-EN 61851-21-1-2017 PDF

Full title and description

UNE-EN 61851-21-1:2017 — Electric vehicle conductive charging system — Part 21-1: Electric vehicle on‑board charger EMC requirements for conductive connection to an AC/DC supply. This document specifies electromagnetic compatibility (EMC) emission and immunity requirements and associated test setups for on‑board charging equipment when connected conductively to AC or DC mains supplies.

Abstract

This national adoption of EN/IEC 61851-21-1:2017 defines the EMC test conditions, limits and measurement arrangements for electric vehicle on‑board chargers (either tested as part of a complete vehicle or as a charging-system component). It focuses on EMC behaviour while the vehicle or charger is connected to the mains and includes detailed arrangements for artificial networks and cable configurations used in tests.

General information

• Status: Active / Published national adoption (UNE-EN).
• Publication date: 1 December 2017 (UNE-EN adoption).
• Publisher: Asociación Española de Normalización (AENOR) / UNE (national adoption of EN/IEC).
• ICS / categories: 43.120 (Electric road vehicles / conductive charging systems).
• Edition / version: 2017 (UNE-EN 61851-21-1:2017; corresponds to IEC/EN 61851-21-1 first edition, 2017).
• Number of pages: 58 pages (UNE-EN published version).

Scope

Specifies EMC requirements (emissions and immunity) and associated test methods for electrically propelled road vehicles' on‑board chargers when conductively connected to an AC or DC supply. The standard applies to on‑board charging units tested either as part of the complete vehicle or at component (charging system) level. It excludes trolley buses, rail vehicles, industrial trucks and vehicles designed primarily for off‑road use. The document concentrates on EMC testing (not other electrical safety tests) and defines test setups including artificial networks and asymmetric networks for charging communications.

Key topics and requirements

• EMC emission limits and immunity requirements applicable to on‑board chargers during conductive charging.
• Defined test arrangements and measurement setups for both vehicle‑level and component‑level testing, including cable treatment and folding rules.
• Use of artificial networks (AN/AMN) and asymmetric artificial networks (AAN) to represent mains and communication interfaces in tests; Annex A gives guidance on integration of charging stations into test setups.
• References and alignment with relevant EMC and power quality standards (for example IEC/EN 61000 series for immunity and limits on harmonics/flicker).
• Guidance on test environment, equipment configuration and conditions (ambient temperature, equipment state, and placement for worst‑case measurement).

Typical use and users

Used by electric vehicle manufacturers, on‑board charger designers, EVSE (charging equipment) manufacturers, independent test laboratories, conformity assessment bodies and regulators to verify EMC performance of vehicle on‑board chargers and to support type‑approval, certification and product development activities. Also used by R&D teams when designing charging interfaces to meet EMC regulatory and market requirements.

Related standards

Part of the IEC/EN 61851 series (conductive charging systems). Closely related documents include IEC/EN 61851-1 (general requirements for EV supply equipment), IEC 61851-21-2 (EMC requirements for off-board EV supply equipment), and referenced EMC and power quality standards such as the IEC 61000 series and ISO test references (for example ISO 11451 and ISO 11452 for vehicle electromagnetic testing). The UNE-EN version may include national amendment(s) (for example UNE-EN 61851-21-1:2017/AC:2017-11).

Keywords

Electric vehicle, EV, on‑board charger, OBC, conductive charging, EMC, electromagnetic compatibility, emissions, immunity, artificial network, AC supply, DC supply, IEC 61851, UNE-EN 61851-21-1.

FAQ

Q: What is this standard?

A: UNE-EN 61851-21-1:2017 is the Spanish national adoption of EN/IEC 61851-21-1:2017, specifying EMC requirements and test methods for electric vehicle on‑board chargers connected conductively to AC or DC supplies.

Q: What does it cover?

A: It covers EMC emissions and immunity testing, required test setups and measurement arrangements for on‑board chargers (vehicle or component level), including the use of artificial networks and test cable configurations; it does not replace separate electrical safety standards.

Q: Who typically uses it?

A: EV and on‑board charger manufacturers, charging equipment suppliers, test laboratories, certification bodies and regulatory authorities use this standard to demonstrate EMC compliance and to guide test campaigns during design, type‑approval and certification.

Q: Is it current or superseded?

A: This edition was published in 2017 and (as an IEC first edition adopted as EN/UNE-EN) remains the 2017 edition; the IEC record indicates stability through 2026 for the IEC publication—users should check national catalogues for any later amendments or revisions beyond 2017 before relying on it for regulatory compliance.

Q: Is it part of a series?

A: Yes — it is one part of the IEC/EN 61851 series on conductive charging systems (for example Part 1: general requirements; Part 21-2: off‑board charger EMC; and other parts covering modes and interfaces).

Q: What are the key keywords?

A: Electric vehicle, on‑board charger, EMC, emissions, immunity, conductive charging, artificial network, AC/DC supply, IEC 61851.