SIST EN 61000-4-25:2003/A2:2020

Elektromagnetische Verträglichkeit (EMV) - Teil 4-25: Prüf- und Messverfahren - Prüfung der Störfestigkeit von Einrichtungen und Systemen gegen HEMP-Störgrößen

Compatibilité électromagnétique (CEM) - Partie- 4-25: Techniques d'essai et de mesure - Méthodes d'essai d'immunité à l'IEMN-HA des appareils et des systèmes

Elektromagnetna združljivost (EMC) – 4-25. del: Preskušanje in merilne tehnike - HEMP preskušanje odpornosti za naprave in sisteme - Dopolnilo A2

General Information

• Status: Published
• Publication Date: 12-Mar-2020
• ICS: 33.100.20 - Immunity
• ICS: 33.100.99 - Other aspects related to EMC
• Technical Committee: EMC - Electromagnetic compatibility
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 13-Mar-2020
• Due Date: 18-May-2020
• Completion Date: 13-Mar-2020
• Directive: Harmonized Standard2014/30/EU - Directive 2014/30/EU of the European Parliament and of the Council of 26 February 2014 on the harmonisation of the laws of the Member States relating to electromagnetic compatibility (recast)
• Mandate: M/490 - Standardisation mandate to the European Standardisation Organisations (ESOs) to support European Smart Grid deployment
• Ref Project: EN 61000-4-25:2002/A2:2020 - Electromagnetic compatibility (EMC) - Part 4-25: Testing and measurement techniques - HEMP immunity test methods for equipment and systems

Relations

• Referred By: SIST EN 267:2020 - Forced draught burners for liquid fuels
• Effective Date: 09-Feb-2026
• Referred By: SIST EN 1776:2016 - Gas infrastructure - Gas measuring systems - Functional requirements
• Effective Date: 09-Feb-2026
• Referred By: SIST EN 1776:2026 - Gas infrastructure - Gas measuring systems - Functional requirements
• Effective Date: 09-Feb-2026
• Referred By: SIST EN IEC 60143-4:2024 - Series capacitors for power systems - Part 4: Thyristor controlled series capacitors (IEC 60143-4:2023)
• Effective Date: 03-Feb-2026
• Referred By: SIST EN 61226:2010 - Nuclear power plants - Instrumentation and control important to safety - Classification of instrumentation and control functions (IEC 61226:2009)
• Effective Date: 03-Feb-2026
• Referred By: SIST EN 60947-4-2:2012 - Low-voltage switchgear and controlgear - Part 4-2: Contactors and motor-starters - AC semiconductor motor controllers and starters (IEC 60947-4-2:2011)
• Effective Date: 03-Feb-2026
• Referred By: SIST EN 60947-4-3:2014 - Low-voltage switchgear and controlgear - Part 4-3: Contactors and motor-starters - AC semiconductor controllers and contactors for non-motor loads
• Effective Date: 03-Feb-2026
• Referred By: SIST EN 61000-1-2:2016 - Electromagnetic compatibility (EMC) - Part 1-2: General - Methodology for the achievement of functional safety of electrical and electronic systems including equipment with regard to electromagnetic phenomena
• Effective Date: 03-Feb-2026
• Referred By: SIST EN 61674:2013 - Medical electrical equipment - Dosimeters with ionization chambers and/or semi-conductor detectors as used in X-ray diagnostic imaging
• Effective Date: 03-Feb-2026
• Referred By: SIST EN IEC 61226:2021 - Nuclear power plants - Instrumentation, control and electrical power systems important to safety - Categorization of functions and classification of systems (IEC 61226:2020)
• Effective Date: 03-Feb-2026
• Referred By: SIST EN IEC 61674:2024 - Medical electrical equipment - Dosimeters with ionization chambers and/or semiconductor detectors as used in X-ray diagnostic imaging (IEC 61674:2024)
• Effective Date: 03-Feb-2026
• Referred By: SIST EN 62340:2010 - Nuclear power plants - Instrumentation and control systems important to safety - Requirements for coping with Common Cause Failure (CCF) (IEC 62340:2007)
• Effective Date: 03-Feb-2026
• Amends: SIST EN 61000-4-25:2003 - Electromagnetic compatibility (EMC) -- Part 4-25: Testing and measurement techniques - HEMP immunity test methods for equipment and systems
• Effective Date: 01-Apr-2020

Overview

SIST EN 61000-4-25:2003/A2:2020 is a Slovenian national adoption of the European Standard EN 61000-4-25:2002/A2:2020. Developed under the framework of the International Electrotechnical Commission (IEC), this standard specifies testing and measurement techniques for assessing the immunity of equipment and systems to High-altitude Electromagnetic Pulse (HEMP). HEMP, a form of high-intensity electromagnetic disturbance, can significantly disrupt or damage electrical and electronic systems. Ensuring electromagnetic compatibility (EMC) with rigorous test methods is vital, especially for critical infrastructure and defense applications.

Key Topics

• HEMP Immunity Testing Methodologies: The amendment details test methods that simulate HEMP conditions, helping evaluate how well equipment and systems withstand these unique electromagnetic threats.
• Test Facility Classifications: The standard distinguishes between small radiated test facilities and large HEMP simulators (type I and type II), prescribing specific requirements for each.
  • Small Radiated Test Facilities: Suited for smaller equipment, these facilities can achieve tighter tolerances and highly controlled test parameters.
  • Large HEMP Simulators (Type I & II): Designed for comprehensive, full-system testing. Specifics about pulse shape, tolerance, rise time, pulse width, and field uniformity are standardized.
• Measurement Criteria: Guidance is provided for peak electric and magnetic field ratios, waveform rise times, pulse width, field uniformity, and limits for electromagnetic interference and pre-pulses.
• Compliance Tolerances: Strict tolerances are given for pulse characteristics and field uniformity to ensure reproducibility and comparability of test results.

Applications

The HEMP immunity test methods described in SIST EN 61000-4-25:2003/A2:2020 serve a critical role in:

• Critical Infrastructure Protection: Utility providers, data centers, and communication networks can validate their resilience to HEMP, reducing vulnerability to catastrophic failures.
• Military & Defense Systems: National defense and military equipment, which must operate reliably in the presence of electromagnetic threats, utilize these test methods to certify equipment according to international standards.
• Telecommunication & Industrial Control Systems: Ensures continued operation and safety of control systems, SCADA, telecommunications, and automation systems subjected to electromagnetic disturbances.
• Regulatory Compliance & Certification: Equipment manufacturers, test laboratories, and regulatory bodies rely on the standard for uniformity in EMC testing, supporting global trade and safety compliance.

Related Standards

When considering EMC and HEMP immunity, several other standards and guidelines complement SIST EN 61000-4-25:2003/A2:2020:

• EN 61000-4-2: Electrostatic discharge (ESD) immunity test methods.
• EN 61000-4-3: Radiated, radio-frequency, electromagnetic field immunity test.
• EN 61000-4-4: Electrical fast transient/burst immunity test.
• EN 61000-6-x Series: EMC generic standards for different environments.
• IEC 61000-4-25 (Base Standard): The core international standard for HEMP immunity test methods.

Conclusion

Adhering to SIST EN 61000-4-25:2003/A2:2020 ensures that equipment and systems are tested under consistent, rigorous electromagnetic immunity protocols-crucial for operational continuity, safety, and regulatory alignment. This standard is integral for manufacturers, system integrators, and end-users seeking to safeguard against high-intensity electromagnetic threats and achieve EMC compliance.

For more information or to obtain the standard, consult the Slovenian Institute for Standardization (SIST) or relevant national and international standardization bodies.

Standards Content (Sample)

SLOVENSKI STANDARD
01-april-2020
Elektromagnetna združljivost (EMC) – 4-25. del: Preskušanje in merilne tehnike -
HEMP preskušanje odpornosti za naprave in sisteme - Dopolnilo A2
Electromagnetic compatibility (EMC) - Part 4-25: Testing and measurement techniques -
HEMP immunity test methods for equipment and systems
Elektromagnetische Verträglichkeit (EMV) - Teil 4-25: Prüf- und Messverfahren - Prüfung
der Störfestigkeit von Einrichtungen und Systemen gegen HEMP-Störgrößen
Compatibilité électromagnétique (CEM) - Partie- 4-25: Techniques d'essai et de mesure
- Méthodes d'essai d'immunité à l'IEMN-HA des appareils et des systèmes
Ta slovenski standard je istoveten z: EN 61000-4-25:2002/A2:2020
ICS:
33.100.20 Imunost Immunity
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD EN 61000-4-25:2002/A2

NORME EUROPÉENNE
EUROPÄISCHE NORM
March 2020
ICS 33.100.99
English Version
Electromagnetic compatibility (EMC) - Part 4-25: Testing and
measurement techniques - HEMP immunity test methods for
equipment and systems
(IEC 61000-4-25:2001/A2:2019)
Compatibilité électromagnétique (CEM) - Partie- 4-25: Elektromagnetische Verträglichkeit (EMV) - Teil 4-25: Prüf-
Techniques d'essai et de mesure - Méthodes d'essai und Messverfahren - Prüfung der Störfestigkeit von
d'immunité à l'IEMN-HA des appareils et des systèmes Einrichtungen und Systemen gegen HEMP-Störgrößen
(IEC 61000-4-25:2001/A2:2019) (IEC 61000-4-25:2001/A2:2019)
This amendment A2 modifies the European Standard EN 61000-4-25:2002; it was approved by CENELEC on 2020-01-15. CENELEC
members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this amendment the
status of a national standard without any alteration.
Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC
Management Centre or to any CENELEC member.
This amendment exists in three official versions (English, French, German). A version in any other language made by translation under the
responsibility of a CENELEC member into its own language and notified to the CEN-CENELEC Management Centre has the same status as
the official versions.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic,
Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the
Netherlands, Norway, Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.

European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2020 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN 61000-4-25:2002/A2:2020 E

European foreword
The text of document 77C/285/CDV, future IEC 61000-4-25/A2, prepared by SC 77C "High power
transient phenomena" of IEC/TC 77 "Electromagnetic compatibility" was submitted to the IEC-
CENELEC parallel vote and approved by CENELEC as EN 61000-4-25:2002/A2:2020.
The following dates are fixed:
• latest date by which the document has to be implemented at national (dop) 2020-10-15
level by publication of an identical national standard or by endorsement
• latest date by which the national standards conflicting with the (dow) 2023-01-15
document have to be withdrawn
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CENELEC shall not be held responsible for identifying any or all such patent rights.
This document has been prepared under a mandate given to CENELEC by the European Commission
and the European Free Trade Association.
Endorsement notice
The text of the International Standard IEC 61000-4-25:2001/A2:2019 was approved by CENELEC as
a European Standard without any modification.
IEC 61000-4-25 ®
Edition 1.0 2019-12
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
A MENDMENT 2
AM ENDEMENT 2
Electromagnetic compatibility (EMC) –

Part 4-25: Testing and measurement techniques – HEMP immunity test methods

for equipment and systems
Compatibilité électromagnétique (CEM) –

Partie 4-25: Techniques d’essai et de mesure – Méthodes d’essai d’immunité à

l’IEMN-HA des appareils et des systèmes

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 33.100.99 ISBN 978-2-8322-7688-4
...