SIST EN IEC 61326-3-2:2019
(Main)Electrical equipment for measurement, control and laboratory use - EMC requirements - Part 3-2: Immunity requirements for safety-related systems and for equipment intended to perform safety-related functions (functional safety) - Industrial applications with specified electromagnetic environment (IEC 61326-3-2:2017)
Electrical equipment for measurement, control and laboratory use - EMC requirements - Part 3-2: Immunity requirements for safety-related systems and for equipment intended to perform safety-related functions (functional safety) - Industrial applications with specified electromagnetic environment (IEC 61326-3-2:2017)
This part of IEC 61326 covers all equipment within the scope of IEC 61326-1, but is limited to
systems and equipment for industrial applications within a specified electromagnetic
environment and intended to perform safety functions as defined in IEC 61508 with SIL 1-3.
The electromagnetic environments encompassed by this product family standard are
industrial, both indoor and outdoor, and based on the requirements of the process industry,
specifically chemical/petrochemical/pharmaceutical manufacturing plants using the mitigation
measures given in Annex C. The difference between the electromagnetic environment
covered by this document compared to the general industrial environment (see IEC 61326-3-
1) is due to the mitigation measures employed against electromagnetic phenomena leading to
a specified electromagnetic environment with test values that have been proven in practice.
The environment of industrial application with a specified electromagnetic environment
typically includes the following characteristics:
– industrial area with limited access;
– limited use of mobile transmitters;
– dedicated cables for power supply and control, signal or communication lines;
– separation between power supply and control, signal or communication cables;
– factory building mostly consisting of metal construction;
– overvoltage/lightning protection by appropriate measures (for example, metal construction
of the building or use of protection devices);
- pipe heating systems driven by AC main power;
- no high-voltage substation close to sensitive areas;
- presence of CISPR 11 Group 2 ISM equipment using ISM frequencies only with low power;
- competent staff;
- periodical maintenance of equipment and systems;
- mounting and installation guidelines for equipment and systems.
Equipment and systems considered as "proven-in-use" according to IEC 61508 or "prior use"
according to IEC 61511 are excluded from the scope of this document.
Fire alarm systems and security alarm systems intended for protection of buildings are
excluded from the scope of this document.
Elektrische Mess-, Steuer-, Regel- und Laborgeräte – EMV-Anforderungen – Teil 3-2: Störfestigkeitsanforderungen für sicherheitsbezogene Systeme und für Geräte, die für sicherheitsbezogene Funktionen vorgesehen sind (Funktionale Sicherheit) – Industrielle Anwendungen in spezifizierter elektromagnetischer Umgebung (IEC 61326-3-2:2017)
Matériel électrique de mesure, de commande et de laboratoire - Exigences relatives à la CEM - Partie 3-2: Exigences d'immunité pour les systèmes relatifs à la sécurité et pour les matériels destinés à réaliser des fonctions relatives à la sécurité (sécurité fonctionnelle) - Applications industrielles dont l'environnement électromagnétique est spécifié (IEC 61326-3-2:2017)
NEW!IEC 61326-3-2:2017 est disponible sous forme de IEC 61326-3-2:2017 RLV qui contient la Norme internationale et sa version Redline, illustrant les modifications du contenu technique depuis l'édition précédente.
L’IEC 61326-3-2:2017 couvre tous les matériels qui relèvent du domaine d’application de l’IEC 61326-1, mais est limitée aux systèmes et matériels pour applications industrielles dans un environnement électromagnétique spécifié et destinés à réaliser des fonctions de sécurité telles que définies dans l’IEC 61508, avec un niveau d’intégrité de sécurité (SIL) 1-3.
Cette deuxième édition annule et remplace la première édition parue en 2008. Cette édition constitue une révision technique. Cette édition inclut les modifications techniques majeures suivantes par rapport à l'édition précédente:
- extension de la plage de fréquences jusqu’à 6 GHz pour l’essai de champ électromagnétique à fréquence radioélectrique, conformément à l’IEC 61000-4-3,
- remplacement du critère de performance FS par DS, conformément à la norme générique IEC 61000-6-7,
- ajout du Tableau 1 – aspects à prendre en considération lors de l'application du critère de performance DS,
- intégration d’essais d’immunité pour les dispositifs ayant une consommation de courant > 16 A, conformément à l’IEC 61000-4-34,
- mise à jour de la Figure A.1 et de la Figure 1 pour une meilleure lisibilité,
- ajouts d’essais conformes à l’IEC 61000-4-16 afin de remplacer les essais conformes à l’IEC 61000-4-6 dans la plage de fréquences comprises entre 10 kHz et 150 kHz.
Električna oprema za merjenje, nadzor in laboratorijsko uporabo - Zahteve za elektromagnetno združljivost (EMC) - 3-2. del: Zahteve za odpornost varnostnih sistemov in za opremo, namenjeno za izvajanje z varnostjo povezanih funkcij (funkcijska varnost) - Industrijska uporaba v določenih elektromagnetnih okoljih (IEC 61326-3-2:2017)
Ta del standarda IEC 61326 zajema vso opremo, ki sodi v področje uporabe standarda IEC 61326-1, vendar se omejuje na sisteme in opremo za industrijsko uporabo znotraj določenega elektromagnetnega okolja, ki so namenjeni izvajanju varnostnih funkcij, kot je opredeljeno v standardu IEC 61508 pri ravni celovite varnosti 1–3.
Elektromagnetna okolja, ki jih zajema ta standard družine izdelkov, so industrijska, tako v zaprtih prostorih kot na prostem, in temeljijo na zahtevah procesne industrije, zlasti proizvodnih obratov za kemikalije/petrokemijo/farmacijo, ki uporabljajo ukrepe za ublažitev, podane v dodatku C. Razlika med elektromagnetnim okoljem, ki ga zajema ta dokument, in splošnim industrijskim okoljem (glej IEC 61326-3-1) nastane zaradi ukrepov za ublažitev, ki se uporabljajo za elektromagnetne pojave, ki povzročajo določeno elektromagnetno okolje s preskusnimi vrednostmi, ki so bile dokazane v praksi.
Okolje industrijske uporabe z določenim elektromagnetnim okoljem običajno vključuje naslednje značilnosti:
– industrijsko območje z omejenim dostopom;
– omejena uporaba mobilnih oddajnikov;
– namenski kabli za napajanje in nadzor, signalne ali komunikacijske linije;
– ločevanje med napajanjem in nadzorom, signalni ali komunikacijski kabli;
– zgradba tovarne, ki je večinoma sestavljena iz kovinske konstrukcije;
– zaščita pred prenapetostjo/udari strel z ustreznimi ukrepi (na primer kovinska konstrukcija zgradbe ali uporaba zaščitnih naprav);
– cevni sistemi za ogrevanje, ki se napajajo iz električnega omrežja z izmeničnim tokom;
– brez visokonapetostnih podpostaj v bližini občutljivih območij;
– prisotnost opreme CISPR 11 Group 2 ISM, ki uporablja frekvence ISM izključno z nizko stopnjo moči;
– usposobljeno osebje;
– redno vzdrževanje opreme in sistemov;
– smernice za montažo ter namestitev opreme in sistemov.
Oprema in sistemi, ki so obravnavani kot »dokazani z uporabo« v skladu s standardom IEC 61508 ali kot »pred uporabo« v skladu s standardom IEC 61511, ne spadajo na področje uporabe tega dokumenta.
Sistemi za javljanje požara in varnostni alarmni sistemi, namenjeni za zaščito stavb, ne spadajo na področje uporabe tega dokumenta.
General Information
Relations
Overview
EN IEC 61326-3-2:2018 (equivalent to IEC 61326-3-2:2017) specifies electromagnetic compatibility (EMC) immunity requirements for electrical equipment used for measurement, control and laboratory use that perform safety-related functions (functional safety) in industrial applications with a specified electromagnetic environment. The standard targets equipment and systems intended to meet IEC 61508 safety integrity levels (SIL 1–3) in process-industry settings (chemical, petrochemical, pharmaceutical) and defines a test plan, performance criteria and test-reporting requirements for immunity verification.
Key Topics and Requirements
- Scope and applicability
- Applies to equipment within IEC 61326‑1 scope but limited to industrial applications in a specified electromagnetic environment.
- Covers equipment intended to perform safety functions (SIL 1–3). Excludes proven-in-use items (IEC 61508 prior use) and building fire/security alarm systems.
- Specified electromagnetic environment (Annex C)
- Characteristics include limited access industrial areas, limited mobile transmitters, dedicated/separated power and control cabling, metal factory buildings, overvoltage/lightning protection, competent staff and periodic maintenance.
- EMC test plan and test setup
- Defines configuration of the equipment under test (EUT), auxiliary equipment, cabling/earthing and operation modes.
- Provides test-setup guidance for stand-alone devices and devices integrated into representative safety-related systems.
- Immunity test methods
- References standard immunity tests (examples): ESD (IEC 61000‑4‑2), radiated RF (IEC 61000‑4‑3), EFT/burst (IEC 61000‑4‑4), surge (IEC 61000‑4‑5), conducted RF (IEC 61000‑4‑6), power-frequency magnetic field (IEC 61000‑4‑8), voltage dips/interruption (IEC 61000‑4‑11/29/34), and conducted common-mode disturbances (IEC 61000‑4‑16).
- Performance criteria
- Uses performance criteria A, B, C and a special criterion DS for safety-related behaviour; details conditions for acceptable degradation, loss of function and required fail-safe responses.
- Reporting and verification
- Specifies required test results, monitoring, and documentation for compliance and functional-safety evidence.
Applications and Who Uses It
- Intended users
- OEMs of safety-related measurement and control equipment, system integrators, test labs, functional-safety engineers, EMC engineers, and compliance officers in the process industry.
- Practical applications
- Qualification of PLCs, safety controllers, sensors, actuators and control-system components that must maintain or fail safely under electromagnetic stress in chemical, petrochemical and pharmaceutical plants.
- Supporting safety cases and SIL assessments by providing EMC immunity evidence specific to a controlled industrial electromagnetic environment.
Related Standards
- IEC 61326‑1 (General EMC requirements)
- IEC 61326‑3‑1 (General industrial immunity for safety-related systems)
- IEC 61508 series (Functional safety/SIL)
- IEC 61000‑4‑x series (individual immunity test methods)
- CISPR 11 (industrial ISM emissions)
This standard is essential for demonstrating EMC immunity of safety-related equipment in specified industrial environments and for integrating EMC evidence into functional safety documentation.
Frequently Asked Questions
SIST EN IEC 61326-3-2:2019 is a standard published by the Slovenian Institute for Standardization (SIST). Its full title is "Electrical equipment for measurement, control and laboratory use - EMC requirements - Part 3-2: Immunity requirements for safety-related systems and for equipment intended to perform safety-related functions (functional safety) - Industrial applications with specified electromagnetic environment (IEC 61326-3-2:2017)". This standard covers: This part of IEC 61326 covers all equipment within the scope of IEC 61326-1, but is limited to systems and equipment for industrial applications within a specified electromagnetic environment and intended to perform safety functions as defined in IEC 61508 with SIL 1-3. The electromagnetic environments encompassed by this product family standard are industrial, both indoor and outdoor, and based on the requirements of the process industry, specifically chemical/petrochemical/pharmaceutical manufacturing plants using the mitigation measures given in Annex C. The difference between the electromagnetic environment covered by this document compared to the general industrial environment (see IEC 61326-3- 1) is due to the mitigation measures employed against electromagnetic phenomena leading to a specified electromagnetic environment with test values that have been proven in practice. The environment of industrial application with a specified electromagnetic environment typically includes the following characteristics: – industrial area with limited access; – limited use of mobile transmitters; – dedicated cables for power supply and control, signal or communication lines; – separation between power supply and control, signal or communication cables; – factory building mostly consisting of metal construction; – overvoltage/lightning protection by appropriate measures (for example, metal construction of the building or use of protection devices); - pipe heating systems driven by AC main power; - no high-voltage substation close to sensitive areas; - presence of CISPR 11 Group 2 ISM equipment using ISM frequencies only with low power; - competent staff; - periodical maintenance of equipment and systems; - mounting and installation guidelines for equipment and systems. Equipment and systems considered as "proven-in-use" according to IEC 61508 or "prior use" according to IEC 61511 are excluded from the scope of this document. Fire alarm systems and security alarm systems intended for protection of buildings are excluded from the scope of this document.
This part of IEC 61326 covers all equipment within the scope of IEC 61326-1, but is limited to systems and equipment for industrial applications within a specified electromagnetic environment and intended to perform safety functions as defined in IEC 61508 with SIL 1-3. The electromagnetic environments encompassed by this product family standard are industrial, both indoor and outdoor, and based on the requirements of the process industry, specifically chemical/petrochemical/pharmaceutical manufacturing plants using the mitigation measures given in Annex C. The difference between the electromagnetic environment covered by this document compared to the general industrial environment (see IEC 61326-3- 1) is due to the mitigation measures employed against electromagnetic phenomena leading to a specified electromagnetic environment with test values that have been proven in practice. The environment of industrial application with a specified electromagnetic environment typically includes the following characteristics: – industrial area with limited access; – limited use of mobile transmitters; – dedicated cables for power supply and control, signal or communication lines; – separation between power supply and control, signal or communication cables; – factory building mostly consisting of metal construction; – overvoltage/lightning protection by appropriate measures (for example, metal construction of the building or use of protection devices); - pipe heating systems driven by AC main power; - no high-voltage substation close to sensitive areas; - presence of CISPR 11 Group 2 ISM equipment using ISM frequencies only with low power; - competent staff; - periodical maintenance of equipment and systems; - mounting and installation guidelines for equipment and systems. Equipment and systems considered as "proven-in-use" according to IEC 61508 or "prior use" according to IEC 61511 are excluded from the scope of this document. Fire alarm systems and security alarm systems intended for protection of buildings are excluded from the scope of this document.
SIST EN IEC 61326-3-2:2019 is classified under the following ICS (International Classification for Standards) categories: 25.040.40 - Industrial process measurement and control; 33.100.20 - Immunity. The ICS classification helps identify the subject area and facilitates finding related standards.
SIST EN IEC 61326-3-2:2019 has the following relationships with other standards: It is inter standard links to SIST EN 61326-3-2:2008. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
SIST EN IEC 61326-3-2:2019 is associated with the following European legislation: EU Directives/Regulations: 2004/108/EC, 2004/108/EU; Standardization Mandates: M/552. When a standard is cited in the Official Journal of the European Union, products manufactured in conformity with it benefit from a presumption of conformity with the essential requirements of the corresponding EU directive or regulation.
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Standards Content (Sample)
SLOVENSKI STANDARD
01-april-2019
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SIST EN 61326-3-2:2008
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Electrical equipment for measurement, control and laboratory use - EMC requirements -
Part 3-2: Immunity requirements for safety-related systems and for equipment intended
to perform safety-related functions (functional safety) - Industrial applications with
specified electromagnetic environment (IEC 61326-3-2:2017)
Elektrische Mess-, Steuer-, Regel- und Laborgeräte – EMV-Anforderungen – Teil 3-2:
Störfestigkeitsanforderungen für sicherheitsbezogene Systeme und für Geräte, die für
sicherheitsbezogene Funktionen vorgesehen sind (Funktionale Sicherheit) – Industrielle
Anwendungen in spezifizierter elektromagnetischer Umgebung (IEC 61326-3-2:2017)
Ta slovenski standard je istoveten z: EN IEC 61326-3-2:2018
ICS:
25.040.40 Merjenje in krmiljenje Industrial process
industrijskih postopkov measurement and control
33.100.20 Imunost Immunity
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EUROPEAN STANDARD EN IEC 61326-3-2
NORME EUROPÉENNE
EUROPÄISCHE NORM
November 2018
ICS 25.040.40; 33.100.20 Supersedes EN 61326-3-2:2008
English Version
Electrical equipment for measurement, control and laboratory
use - EMC requirements - Part 3-2: Immunity requirements for
safety-related systems and for equipment intended to perform
safety-related functions (functional safety) - Industrial
applications with specified electromagnetic environment
(IEC 61326-3-2:2017)
Matériel électrique de mesure, de commande et de Elektrische Mess-, Steuer-, Regel- und Laborgeräte - EMV-
laboratoire - Exigences relatives à la CEM - Partie 3-2: Anforderungen - Teil 3-2: Störfestigkeitsanforderungen für
Exigences d'immunité pour les systèmes relatifs à la sicherheitsbezogene Systeme und für Geräte, die für
sécurité et pour les matériels destinés à réaliser des sicherheitsbezogene Funktionen vorgesehen sind
fonctions relatives à la sécurité (sécurité fonctionnelle) - (Funktionale Sicherheit) - Industrielle Anwendungen in
Applications industrielles dont l'environnement spezifizierter elektromagnetischer Umgebung
électromagnétique est spécifié (IEC 61326-3-2:2017)
(IEC 61326-3-2:2017)
This European Standard was approved by CENELEC on 2018-08-22. CENELEC members are bound to comply with the CEN/CENELEC
Internal Regulations which stipulate the conditions for giving this European Standard 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 European Standard 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, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, 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
© 2018 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN IEC 61326-3-2:2018 E
European foreword
The text of document 65A/820/FDIS, future edition 2 of IEC 61326-3-2, prepared by SC 65A "System
aspects" of IEC/TC 65 "Industrial-process measurement, control and automation" was submitted to the
IEC-CENELEC parallel vote and approved by CENELEC as EN IEC 61326-3-2:2018.
The following dates are fixed:
• latest date by which the document has to be implemented at national (dop) 2019-05-30
level by publication of an identical national standard or by endorsement
• latest date by which the national standards conflicting with the (dow) 2021-11-30
document have to be withdrawn
This document supersedes EN 61326-3-2:2008.
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, and supports essential requirements of EU Directive(s).
Endorsement notice
The text of the International Standard IEC 61326-3-2:2017 was approved by CENELEC as a
European Standard without any modification.
In the official version, for Bibliography, the following notes have to be added for the standards
indicated:
IEC 61000 (series) NOTE Harmonized as EN 61000 (series)
IEC 61000-1-2:2016 NOTE Harmonized as EN 61000-1-2:2016 (not modified)
IEC 61000-6-7 NOTE Harmonized as EN 61000-6-7
IEC 61508 (series) NOTE Harmonized as EN 61508 (series)
IEC 61508-1:2010 NOTE Harmonized as EN 61508-1:2010 (not modified)
IEC 61508-4:2010 NOTE Harmonized as EN 61508-4:2010 (not modified)
IEC 61784-3 NOTE Harmonized as EN 61784-3
CISPR 11:2015 NOTE Harmonized as EN 55011:2016
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments)
applies.
NOTE 1 Where an International Publication has been modified by common modifications, indicated by (mod), the relevant
EN/HD applies.
NOTE 2 Up-to-date information on the latest versions of the European Standards listed in this annex is available here:
www.cenelec.eu.
Publication Year Title EN/HD Year
IEC 60050-161 - International Electrotechnical Vocabulary. Chapter - -
161: Electromagnetic compatibility
IEC 61000-4-2 2008 Electromagnetic compatibility (EMC) - Part 4-2: EN 61000-4-2 2009
Testing and measurement techniques - Electrostatic
discharge immunity test
IEC 61000-4-3 2006 Electromagnetic compatibility (EMC) - Part 4-3 : EN 61000-4-3 2006
Testing and measurement techniques - Radiated,
radio-frequency, electromagnetic field immunity test
+ A1 2007 + A1 2008
+ A2 2010 + A2 2010
IEC 61000-4-4 2012 Electromagnetic compatibility (EMC) - Part 4-4: EN 61000-4-4 2012
Testing and measurement techniques - Electrical
fast transient/burst immunity test
IEC 61000-4-5 2014 Electromagnetic compatibility (EMC) - Part 4-5: EN 61000-4-5 2014
Testing and measurement techniques - Surge
immunity test
IEC 61000-4-6 2013 Electromagnetic compatibility (EMC) - Part 4-6: EN 61000-4-6 2014
Testing and measurement techniques - Immunity to
conducted disturbances, induced by radio-
frequency fields
IEC 61000-4-8 2009 Electromagnetic compatibility (EMC) - Part 4-8: EN 61000-4-8 2010
Testing and measurement techniques - Power
frequency magnetic field immunity test
IEC 61000-4-11 2004 Electromagnetic compatibility (EMC) - Part 4-11: EN 61000-4-11 2004
Testing and measurement techniques - Voltage
dips, short interruptions and voltage variations
immunity tests
IEC 61000-4-16 2015 Electromagnetic compatibility (EMC) - Part 4-16: EN 61000-4-16 2016
Testing and measurement techniques - Test for
immunity to conducted, common mode
disturbances in the frequency range 0 Hz to 150
kHz
IEC 61000-4-29 2000 Electromagnetic compatibility (EMC) - Part 4-29: EN 61000-4-29 2000
Testing and measurement techniques - Voltage
dips, short interruptions and voltage variations on
d.c. input power port immunity tests
IEC 61000-4-34 2005 Electromagnetic compatibility (EMC) - Part 4-34: EN 61000-4-34 2007
Testing and measurement techniques - Voltage
dips, short interruptions and voltage variations
immunity tests for equipment with input current
more than 16 A per phase
+ A1 2009 + A1 2009
IEC 61326-1 2012 Electrical equipment for measurement, control and EN 61326-1 2013
laboratory use - EMC requirements - Part 1:
General requirements
IEC 61326-3-1 2017 Electrical equipment for measurement, control and EN 61326-3-1 2017
laboratory use - EMC requirements - Part 3-1:
Immunity requirements for safety-related systems
and for equipment intended to perform safety-
related functions (functional safety) -General
industrial applications
IEC 61508-2 2010 Functional safety of EN 61508-2 2010
electrical/electronic/programmable electronic safety-
related systems - Part 2: Requirements for
electrical/electronic/programmable electronic safety-
related systems
IEC 61326-3-2 ®
Edition 2.0 2017-05
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Electrical equipment for measurement, control and laboratory use – EMC
requirements –
Part 3-2: Immunity requirements for safety-related systems and for equipment
intended to perform safety-related functions (functional safety) – Industrial
applications with specified electromagnetic environment
Matériel électrique de mesure, de commande et de laboratoire – Exigences
relatives à la CEM –
Partie 3-2: Exigences d'immunité pour les systèmes relatifs à la sécurité et
pour les matériels destinés à réaliser des fonctions relatives à la sécurité
(sécurité fonctionnelle) – Applications industrielles dont l’environnement
électromagnétique est spécifié
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 25.040.40; 33.100.20 ISBN 978-2-8322-4213-1
– 2 – IEC 61326-3-2:2017 © IEC 2017
CONTENTS
FOREWORD . 4
INTRODUCTION . 6
1 Scope . 8
2 Normative references . 8
3 Terms, definitions and abbreviations . 10
3.1 Terms and definitions . 10
3.2 Abbreviations . 13
4 General . 13
5 EMC test plan . 13
5.1 General . 13
5.2 Instruction for testing . 14
5.3 Configuration of EUT during testing . 14
5.3.1 General . 14
5.3.2 Composition of EUT . 14
5.3.3 Assembly of EUT . 14
5.3.4 I/O ports . 14
5.3.5 Auxiliary equipment (AE) . 15
5.3.6 Cabling and earthing (grounding) . 15
5.4 Operation conditions of EUT during testing . 15
5.4.1 Operation modes . 15
5.4.2 Environmental conditions . 15
5.4.3 EUT software during test . 15
5.5 Specification of performance criteria . 15
5.6 Test description . 15
6 Performance criteria . 16
6.1 General . 16
6.2 Performance criteria A, B and C . 16
6.3 Performance criterion DS . 16
6.3.1 Definition of performance criterion DS . 16
6.3.2 Application of the performance criterion DS . 16
6.3.3 Aspects to be considered during application of performance criterion DS . 17
7 Immunity requirements . 17
8 Test set-up and test philosophy for EUT with functions intended for safety
applications . 20
8.1 Testing of safety-related systems and equipment intended to be used in
safety-related systems . 20
8.2 Test philosophy for equipment intended for use in safety-related systems . 20
8.3 Test philosophy for safety-related systems . 21
8.4 Test configuration and test performance . 21
8.5 Monitoring . 22
9 Test results and test report . 22
Annex A (informative) Approaches on how to apply IEC 61326-3 series . 25
Annex B (informative) Evaluation of electromagnetic phenomena . 27
Annex C (normative) Specified electromagnetic environment . 29
C.1 General . 29
IEC 61326-3-2:2017 © IEC 2017 – 3 –
C.2 Industrial area with limited access . 29
C.3 Limited use of mobile transmitters . 29
C.4 Dedicated cables for power supply and control, signal or communication
lines . 30
C.5 Separation between power supply and control, signal or communication
cables . 30
C.6 Factory building mostly consisting of metal construction . 31
C.7 Overvoltage/lightning protection by appropriate measures . 31
C.8 Pipe heating systems driven by AC mains . 32
C.9 No high-voltage substations close to sensitive areas . 32
C.10 Presence of low-power devices using ISM frequencies according to
CISPR 11 . 32
C.11 Competent staff . 32
C.12 Periodic maintenance of equipment and systems . 32
C.13 Installation guidelines for equipment and systems . 32
Annex D (informative) Example of immunity levels in the process industry . 33
Bibliography . 36
Figure 1 – Typical test set-up for equipment intended for use in safety-related system,
tested as stand-alone equipment or entire system . 23
Figure 2 – Typical test set-up for equipment intended for use in a safety-related system
integrated into a representative safety-related system during test . 24
Figure A.1 – Correlation between the standards IEC 61326-1, IEC 61326-2-x,
IEC 61326-3-1 and IEC 61326-3-2 . 26
Figure C.1 – Recommended cable layouts for different categories . 31
Table 1 – Reaction of EUT during test . 17
Table 2 – Immunity test requirements – Enclosure port . 18
Table 3 – Immunity test requirements – Input and output AC power ports . 18
Table 4 – Immunity test requirements – Input and output DC power ports . 19
Table 5 – Immunity test requirements – I/O signal/control ports . 19
Table 6 – Immunity test requirements – I/O signal/control ports connected directly to
power supply networks. 19
Table 7 – Immunity test requirements – Functional earth port . 20
Table B.1 – General considerations for the application of electromagnetic phenomena
for functional safety in industrial applications with specified electromagnetic
environment (examples) . 28
Table D.1 – Immunity test requirements for equipment intended for use in industrial
locations with a specified electromagnetic environment according to NE 21 . 34
– 4 – IEC 61326-3-2:2017 © IEC 2017
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
ELECTRICAL EQUIPMENT FOR MEASUREMENT,
CONTROL AND LABORATORY USE –
EMC REQUIREMENTS –
Part 3-2: Immunity requirements for safety-related
systems and for equipment intended to perform
safety-related functions (functional safety) –
Industrial applications with specified electromagnetic environment
FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of IEC is to promote
international co-operation on all questions concerning standardization in the electrical and electronic fields. To
this end and in addition to other activities, IEC publishes International Standards, Technical Specifications,
Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC
Publication(s)”). Their preparation is entrusted to technical committees; any IEC National Committee interested
in the subject dealt with may participate in this preparatory work. International, governmental and non-
governmental organizations liaising with the IEC also participate in this preparation. IEC collaborates closely
with the International Organization for Standardization (ISO) in accordance with conditions determined by
agreement between the two organizations.
2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
consensus of opinion on the relevant subjects since each technical committee has representation from all
interested IEC National Committees.
3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC
Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
misinterpretation by any end user.
4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
transparently to the maximum extent possible in their national and regional publications. Any divergence
between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in
the latter.
5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity
assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any
services carried out by independent certification bodies.
6) All users should ensure that they have the latest edition of this publication.
7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and
members of its technical committees and IEC National Committees for any personal injury, property damage or
other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and
expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC
Publications.
8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
indispensable for the correct application of this publication.
9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of
patent rights. IEC shall not be held responsible for identifying any or all such patent rights.
International Standard IEC 61326-3-2 has been prepared by subcommittee 65A: System
aspects, of IEC technical committee 65: Industrial-process measurement, control and
automation.
This second edition cancels and replaces the first edition published in 2008. This edition
constitutes a technical revision. This edition includes the following significant technical
changes with respect to the previous edition:
• extension of the frequency range up to 6 GHz for the radio-frequency electromagnetic field
test according to IEC 61000-4-3,
IEC 61326-3-2:2017 © IEC 2017 – 5 –
• replacement of the performance criterion FS with DS according to the generic standard
IEC 61000-6-7,
• adding Table 1 – Aspects to be considered during application of performance criterion DS,
• including immunity tests for devices with current consumption > 16 A according to
IEC 61000-4-34,
• updating Figure A.1 and Figure 1 for better readability,
• adding tests according to IEC 61000-4-16 to replace the tests according to IEC 61000-4-6
in the frequency range between 10 kHz and 150 kHz.
IEC 61326-3-2 is to be read in conjunction with IEC 61326-1.
The text of this standard is based on the following documents:
FDIS Report on voting
65A/820/FDIS 65A/826/RVD
Full information on the voting for the approval of this standard can be found in the report on
voting indicated in the above table.
This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.
A list of all the parts of the IEC 61326 series, under the general title Electrical equipment for
measurement, control and laboratory use – EMC requirements, can be found on the IEC
website.
The committee has decided that the contents of this publication will remain unchanged until
the stability date indicated on the IEC website under "http://webstore.iec.ch" in the data
related to the specific publication. At this date, the publication will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
IMPORTANT – The 'colour inside' logo on the cover page of this publication indicates
that it contains colours which are considered to be useful for the correct
understanding of its contents. Users should therefore print this document using a
colour printer.
– 6 – IEC 61326-3-2:2017 © IEC 2017
INTRODUCTION
Functional safety is that part of the overall safety relating to the equipment under control
(EUC) and the EUC control system which depends on the correct functioning of the electrical
safety-related systems. To achieve this, all items of equipment of the safety-related system
which are involved in the performance of the safety functions must behave in a specified
manner under all relevant conditions.
The IEC basic safety publication for functional safety of electrical/electronic/programmable
electronic safety-related systems is IEC 61508. It sets the overall requirements to achieve
functional safety. Sufficient immunity to electromagnetic disturbances is one of those
requirements.
The concept of IEC 61508 distinguishes between the consideration of the application and the
design of safety-related electrical and electronic systems. The overall safety requirements
specification specifies all relevant requirements of the intended application, as follows.
a) definition of the safety functions, based on a risk assessment of the intended application
(which functions are intended to reduce risk);
b) appropriate safety integrity level (SIL) for each safety function based on a risk assessment
of the intended application;
c) definition of the environment in which the system is intended to work including the
electromagnetic environment as required by IEC 61508-2.
The requirements for each safety function are then specified in one or more system safety
requirements specifications (SSRS). Hence, with regard to immunity against electromagnetic
phenomena, the essential starting point is that the electromagnetic environment and its
phenomena are considered in the SSRS, as required by IEC 61508. The safety-related
system intended to implement the specified safety function has to fulfil the SSRS, and, from it,
corresponding immunity requirements have to be derived for the items of equipment, which
results in an equipment requirement specification. With respect to the electromagnetic
environment, the SSRS and the equipment requirement specification should be based on a
competent assessment of the foreseeable electromagnetic threats in the real environment
over the whole operational life of the equipment. Hence, immunity requirements for the
equipment depend on the characteristics of the electromagnetic environment in which the
equipment is intended to be used.
The equipment manufacturer, therefore, has to prove that the equipment fulfils the equipment
requirement specification and the system integrator must prove that the system fulfils the
SSRS. Evidence has to be produced by application of appropriate methods. They do not need
to consider any other aspects of the application, for example, risk of the application
associated to any failure of the safety-related system. The objective is for all equipment in the
system to comply with particular performance criteria taking into account functional safety
aspects (for example, the performance criterion DS) up to levels specified in the SSRS
independent of the required safety integrity level (SIL).
For approaches on how to apply IEC 61326-3 series, see Annex A.
There exists meanwhile the generic EMC standard IEC 61000-6-7 dealing with functional
safety aspects in industrial environments. Generic EMC standards are designed to apply for a
defined electromagnetic environment, to products for which no dedicated product family
EMC/product EMC standards exist. However, for the equipment in the scope of this document,
the information given in the generic EMC standard was considered not to be sufficient. More
detailed information and specifications were needed, for example specific test set-ups,
consideration of the functional earth port or the deliberate differentiation between types of
electromagnetic environments relevant for the equipment in the scope of this document.
IEC 61326-3-2:2017 © IEC 2017 – 7 –
Though historically this product standard was developed several years before the generic
nd
EMC standard, this 2 edition considers the information given in the generic EMC standard
and applies it where appropriate.
– 8 – IEC 61326-3-2:2017 © IEC 2017
ELECTRICAL EQUIPMENT FOR MEASUREMENT,
CONTROL AND LABORATORY USE –
EMC REQUIREMENTS –
Part 3-2: Immunity requirements for safety-related
systems and for equipment intended to perform
safety-related functions (functional safety) –
Industrial applications with specified electromagnetic environment
1 Scope
This part of IEC 61326 covers all equipment within the scope of IEC 61326-1, but is limited to
systems and equipment for industrial applications within a specified electromagnetic
environment and intended to perform safety functions as defined in IEC 61508 with SIL 1-3.
The electromagnetic environments encompassed by this product family standard are
industrial, both indoor and outdoor, and based on the requirements of the process industry,
specifically chemical/petrochemical/pharmaceutical manufacturing plants using the mitigation
measures given in Annex C. The difference between the electromagnetic environment
covered by this document compared to the general industrial environment (see IEC 61326-3-
1) is due to the mitigation measures employed against electromagnetic phenomena leading to
a specified electromagnetic environment with test values that have been proven in practice.
The environment of industrial application with a specified electromagnetic environment
typically includes the following characteristics:
– industrial area with limited access;
– limited use of mobile transmitters;
– dedicated cables for power supply and control, signal or communication lines;
– separation between power supply and control, signal or communication cables;
– factory building mostly consisting of metal construction;
– overvoltage/lightning protection by appropriate measures (for example, metal construction
of the building or use of protection devices);
– pipe heating systems driven by AC main power;
– no high-voltage substation close to sensitive areas;
– presence of CISPR 11 Group 2 ISM equipment using ISM frequencies only with low power;
– competent staff;
– periodical maintenance of equipment and systems;
– mounting and installation guidelines for equipment and systems.
Equipment and systems considered as “proven-in-use” according to IEC 61508 or “prior use”
according to IEC 61511 are excluded from the scope of this document.
Fire alarm systems and security alarm systems intended for protection of buildings are
excluded from the scope of this document.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their
content constitutes requirements of this document. For dated references, only the edition
IEC 61326-3-2:2017 © IEC 2017 – 9 –
cited applies. For undated references, the latest edition of the referenced document (including
any amendments) applies.
IEC 60050-161, International Electrotechnical Vocabulary – Part 161: Electromagnetic
compatibility (available at
IEC 61000-4-2:2008, Electromagnetic compatibility (EMC) – Part 4-2: Testing and
measurement techniques – Electrostatic discharge immunity test
IEC 61000-4-3:2006, Electromagnetic compatibility (EMC) – Part 4-3: Testing and
measurement techniques – Radiated, radio-frequency, electromagnetic field immunity test
IEC 61000-4-3:2006/AMD1:2007
IEC 61000-4-3:2006/AMD2:2010
IEC 61000-4-4:2012, Electromagnetic compatibility (EMC) – Part 4-4: Testing and
measurement techniques – Electrical fast transient/burst immunity test
IEC 61000-4-5:2014, Electromagnetic compatibility (EMC) – Part 4-5: Testing and
measurement techniques – Surge immunity test
IEC 61000-4-6:2013, Electromagnetic compatibility (EMC) – Part 4-6: Testing and
measurement techniques – Immunity to conducted disturbances, induced by radio-frequency
fields
IEC 61000-4-8:2009, Electromagnetic compatibility (EMC) – Part 4-8: Testing and
measurement techniques – Power frequency magnetic field immunity test
IEC 61000-4-11:2004, Electromagnetic compatibility (EMC) – Part 4-11: Testing and
measurement techniques – Voltage dips, short interruptions and voltage variations immunity
tests
IEC 61000-4-16:2015, Electromagnetic compatibility (EMC) – Part 4-16: Testing and
measurement techniques – Test for immunity to conducted, common mode disturbances in
the frequency range 0 Hz to 150 kHz
IEC 61000-4-29:2000, Electromagnetic compatibility (EMC) – Part 4-29: Testing and
measurement techniques – Voltage dips, short interruptions and voltage variations on d.c.
input power port immunity tests
IEC 61000-4-34:2005, Electromagnetic compatibility (EMC) – Part 4-34: Testing and
measurement techniques – Voltage dips, short interruptions and voltage variations immunity
tests for equipment with input current more than 16 A per phase
IEC 61000-4-34:2005/AMD1:2009
IEC 61326-1:2012, Electrical equipment for measurement, control and laboratory use – EMC
requirements – Part 1: General requirements
IEC 61326-3-1:__ , Electrical equipment for measurement, control and laboratory use – EMC
requirements – Part 3-1: Immunity requirements for safety-related systems and for equipment
intended to perform safety functions (functional safety) – General industrial applications
IEC 61508-2:2010, Functional safety of electrical/electronic/programmable electronic safety-
related systems – Part 2: Requirements for electrical/electronic/programmable electronic
safety-related systems
______________
Under preparation. Stage at the time of publication: IEC/DIS 61326-3-1:2016.
– 10 – IEC 61326-3-2:2017 © IEC 2017
3 Terms, definitions and abbreviations
3.1 Terms and definitions
For the purposes of this document, the terms and definitions of IEC 61326-1 and
IEC 60050-161 and the following apply.
ISO and IEC maintain terminological databases for use in standardization at the following
addresses:
• IEC Electropedia: available at http://www.electropedia.org
• ISO Online browing platform: available at http://www.iso.org/obp
NOTE Other definitions not included in IEC 60050-161 and in this standard, but nevertheless necessary for the
application of the different tests, are given in the EMC basic publications of IEC 61000 series.
3.1.1
dangerous failure
failure of an element and/or subsystem and/or system that plays a part in implementing the
safety function that:
a) prevents a safety function from operating when required (demand mode) or causes a
safety function to fail (continuous mode) such that the EUC is put into a hazardous or
potentially hazardous state; or
b) decreases the probability that the safety function operates correctly when required
[SOURCE: IEC 61508-4:2010, 3.6.7]
3.1.2
equipment
subsystems, apparatus, appliances and other assemblies of products
3.1.3
equipment under control
EUC
equipment, machinery, apparatus or plant used for manufacturing, process, transportation,
medical or other activities
Note 1 to entry: The EUC control system is separate and distinct from the EUC.
[SOURCE: IEC 61508-4:2010, 3.2.1]
3.1.4
functional safety
part of the overall safety relating to the EUC and the EUC control system that depends on the
correct functioning of the E/E/PE safety-related systems and other risk reduction measures
[SOURCE: IEC 61508-4:2010, 3.1.12]
3.1.5
harm
physical injury or damage to the health of people, or damage to property or the environment
[SOURCE: ISO/IEC Guide 51:2014, 3.1, modifed – "physical" has been added ]
3.1.6
hazard
potential source of harm
IEC 61326-3-2:2017 © IEC 2017 – 11 –
Note 1 to entry: The term includes short-term or immediate danger (such as from fire or explosion) and long-term
effects on health (such as from release of a toxic substance).
[SOURCE: ISO/IEC Guide 51:2014, 3.2, modified – the note to entry has been added]
3.1.7
safe failure
failure of an element and/or subsystem and/or system that plays a part in implementing the
safety function that:
a) results in the spurious operation of the safety function to put the EUC (or part thereof) into
a safe state or maintain a safe state; or
b) increases the probability of the spurious operation of the safety function to put the EUC (or
part thereof) into a safe state or maintain a safe state
[SOURCE: IEC 61508-4:2010, 3.6.8]
3.1.8
safety function
function to be implemented by an E/E/PE safety-related system or other risk reduction
measures, that is intended to achieve or maintain a safe state for the EUC, in respect of a
specific hazardous event
EXAMPLE Examples of safety functions include:
– functions that are required to be carried out as positive actions to avoid hazardous situations (for example
switching off a motor); and
– functions that prevent actions being taken (for example preventing a motor starting).
[SOURCE: IEC 61508-4:2010, 3.5.1]
3.1.9
programmable electronic
PE
based on computer technology which may be comprised of hardware, software and of input
and/or output units
EXAMPLE The following are all programmable electronic devices:
– microprocessors;
– micro-controllers;
– programmable controllers;
– application specific integrated circuits (ASICs);
– programmable logic controllers (PLCs);
– other computer-based devices (for example smart sensors, transmitters, actuators).
Note 1 to entry: This term covers microelectronic devices based on one or more central processing units (CPUs)
together with associated memories, etc.
[SOURCE: IEC 61508-4:2010, 3.2.12]
3.1.10
electrical/electronic/programmable electronic
E/E/PE
based on electrical (E) and/or electronic (E) and/or programmable electronic (PE) technology
EXAMPLE Electrical/electronic/programmable electronic devices include
– electro-mechanical devices (electrical);
– solid-state non-programmable electronic devices (electronic);
– electronic devices based on computer technology (programmable electronic); see 3.2.5 (of IEC 61326-1:2012).
– 12 – IEC 61326-3-2:2017 © IEC 2017
Note 1 to entry: The term is intended to cover any and all devices or systems operating on electrical principles.
[SOURCE:IEC 61508-4:2010, 3.2.13, modified – the reference in the last dash is modified]
3.1.11
DC distribution network
local DC electricity supply network in the infrastructure of a certain site or building intended
for connection of any type of equipment
Note 1 to entry: Connection to a local or remote battery is not regarded as a DC distribution network if such a link
comprises the power supply for only a single equipment.
3.1.12
safety-related system
designated system that both
• implements the required safety functions necessary to achieve or maintain a safe state for
the EUC; and
• is intended to achieve, on its own or with other E/E/PE safety-related systems and other
risk reduction measures, the necessary safety integrity for the required safety functions
Note 1 to entry: A safety-related system includes all the hardware, software and supporting services (for example,
power supplies) necessary to carry out the specified safety function (sensors, other input devices, final elements
(actuators) and other output devices are therefore included in the safety-related system).
[SOURCE: IEC 61508-4:2010, 3.4.1, modified – notes 1, 2, 3, 4, 5 and 7 have been removed]
3.1.13
equipment under test
EUT
the equipment (devices, appliances and systems) subjected to immunity tests
3.1.14
auxiliary equipment
AE
equipment necessary to provide the equipment under test (EUT) with the signals required for
normal operation and equipment to verify the performance of the EUT
3.1.15
system safety requirements specification
SSRS
specification containing the requirements for the safety functions and their associated safety
integrity levels
3.1.16
safety integrity level
SIL
discrete level (one out of a possible four), corresponding to a range of safety integrity values,
where safety integrity level 4 has the highest level of safety integrity and safety integrity level
1 has the lowest
Note 1 to entry: The target failure measures for the four safety integrity levels are specified in Tables 2 and 3 of
IEC 61508-1:2010.
Note 2 to entry: Safety integrity levels are used for specifying the safety integrity requirements of the safety
functions to be allocated to the E/E/PE safety-related systems.
Note 3 to entry: A safety integrity level (SIL) is not a property of a system, subsystem, element or component.
The correct interpretation of the phrase “SIL n safety-related system” (where n is 1, 2, 3 or 4) is that the system is
potentially capable of supporting safety functions with a safety integrity level up to n.
[SOURCE: IEC 61508-4:2010, 3.5.8, modified – the reference to 3.5.17 of IEC 61508-1 has
been removed and its date of publication added]
IEC 61326-3-2:2017 © IEC 2017 – 13 –
3.2 Abbrevi
...
SIST EN IEC 61326-3-2:2019は、測定、制御及び laboratory 用電気機器に関する基準であり、特に安全関連システムや機器のための免疫要件を定義しています。この標準の範囲は、IEC 61326-1の対象範囲内にあるすべての機器を含んでいますが、特定の電磁環境内での産業用途向けの安全機能を実行するためのシステムと機器に限定されています。IEC 61508に定義されたSIL 1-3の安全機能を対象としています。 この標準の強みは、具体的な電磁環境に対する要件と、実際に効果が証明された試験値に基づいた電磁環境の要求を包括的に示す点にあります。従来の産業環境（IEC 61326-3-1参照）とは異なり、化学、石油化学、製薬工場などのプロセス産業の要求を満たすために、適切な緩和策が考慮されています。これにより、特定の電磁環境における機器の性能が保証され、信頼性の高い製品の開発が促進されます。 具体的には、工業エリアの制限されたアクセスや、移動式送信器の限定使用、電源供給と制御、信号または通信回線の専用ケーブルなどがこの標準に記載されています。また、金属構造による工場建物や適切な過電圧・稲妻保護措置が確保されている点も評価できます。このように、具体的な条件下での使用を考慮することにより、電磁的影響から機器を守るための明確なガイドラインが提供されています。 さらに、定期的な機器とシステムのメンテナンスや、設備の取り付け及び設置に関するガイドラインも取り入れられており、実際の運用における有用性が高まります。このように、SIST EN IEC 61326-3-2:2019は、産業用途における安全機能の需要に応じた強固な基盤を提供し、高度な機能安全性を確保するための鍵となる標準です。
The SIST EN IEC 61326-3-2:2019 standard addresses critical aspects of electromagnetic compatibility (EMC) requirements specifically for electrical equipment used in measurement, control, and laboratory environments, focusing on safety-related functions within industrial applications. Its scope is well-defined, covering a broad range of equipment as specified in IEC 61326-1, with a distinct emphasis on systems designed to function within a specified electromagnetic environment for safety-related applications in compliance with IEC 61508, particularly for Safety Integrity Levels (SIL) 1-3. One of the standout strengths of this standard is its concentration on the industrial environments where safety-related functions are paramount. By defining the electromagnetic environments characteristic of industrial areas-both indoor and outdoor-this standard ensures that equipment is rigorously tested and validated under conditions that mirror real-world operational settings. The meticulous delineation of limits, mitigations, and specific characteristics-such as limited access areas, dedicated cables, and the necessary installation and mounting guidelines-enhances its practical relevance. Moreover, the distinction made between this standard and IEC 61326-3-1 showcases a nuanced understanding of the diverse electromagnetic challenges faced in the industrial sector. The inclusion of proven mitigation measures, as enumerated in Annex C, indicates a proactive approach to addressing electromagnetic phenomena, thereby reinforcing the reliability and functional safety of equipment used in sensitive environments like chemical and pharmaceutical production facilities. Additionally, the exclusion of "proven-in-use" and "prior use" equipment, along with the specific exclusion of fire and security alarm systems for buildings, clarifies the standard's intent and target audience. This not only helps to prevent ambiguity regarding applicability but also allows stakeholders to focus on the critical parameters that directly impact safety-related operations. In summary, the SIST EN IEC 61326-3-2:2019 standard offers a robust framework specifically tailored for ensuring the electromagnetic compatibility of safety-related systems in industrial applications, making it a vital reference for manufacturers, engineers, and safety professionals operating in environments where functional safety is essential. Its clarity, detailed scope, and emphasis on practical application significantly contribute to its effectiveness and relevance in the field.
Der Standard SIST EN IEC 61326-3-2:2019 legt spezifische Anforderungen an die elektromagnetische Verträglichkeit (EMV) von elektrischen Geräten fest, die in industriellen Anwendungen zur Messung, Steuerung und für Laborzwecke eingesetzt werden. Dieser Teil des IEC 61326-Standards konzentriert sich auf die Immunität von sicherheitsrelevanten Systemen und Geräten, die für sicherheitsrelevante Funktionen gemäß IEC 61508 mit SIL 1-3 vorgesehen sind. Der Geltungsbereich des Standards beschränkt sich auf Systeme und Ausrüstungen, die innerhalb eines vorgegebenen elektromagnetischen Umfelds operieren. Dieser Fokus auf industrielle Anwendungen, die sowohl Innen- als auch Außenbereiche umfassen, ist besonders relevant für Anlagen in der chemischen, petrochemischen und pharmazeutischen Industrie. Die präzisen Anforderungen und durchgeführten Maßnahmen zur Minderung elektromagnetischer Phänomene sind kritisch, um eine sichere und zuverlässige Funktion der Geräte zu gewährleisten. Ein herausragendes Merkmal dieses Standards ist die Einsichtnahme in die praktischen Erfahrungen aus der Industrie. Durch die Berücksichtigung spezifischer Merkmale eines elektromagnetischen Umfelds, einschließlich begrenztem Zugang zu industriellen Bereichen, der Verwendung von speziellen Kabeln und geeigneten Schutzmaßnahmen gegen Überspannung oder Blitzeinschläge, wird die Sicherheit der Geräte und Systeme erhöht. Ein weiterer Vorteil des Standards liegt in der klaren Definition von Kriterien für die Installations- und Betriebsbedingungen. Diese beinhalten nicht nur Zugangsbeschränkungen und die Notwendigkeit kompetenter Mitarbeiter, sondern auch regelmäßige Wartungsanforderungen und Montageanleitungen für Geräte. Damit wird sichergestellt, dass die elektrischen Ausrüstungen zuverlässig und unter den gegebenen Bedingungen funktionieren. Die Relevanz dieser Norm ist insbesondere für Betreiber von industriellen Anlagen von großer Bedeutung, da sie die Gefahr von Störungen verringert und damit die funktionale Sicherheit erhöht. Der Exclusionsrahmen bezüglich bereits bewährter Systeme und spezifischer Sicherheitssysteme verdeutlicht zudem, dass der Standard gezielt für neue Entwicklungen und Implementierungen in einem klar definierten elektromagnetischen Umfeld gedacht ist. Insgesamt bietet der Standard SIST EN IEC 61326-3-2:2019 eine umfassende und praxisnahe Grundlage zur Sicherstellung der EMV-Anforderungen für sicherheitsrelevante Systeme in industriellen Anwendungen, was für die funktionale Betriebsfähigkeit und den Schutz von Menschen und Anlagen von immenser Bedeutung ist.
La norme SIST EN IEC 61326-3-2:2019 s'intéresse aux équipements électriques utilisés pour la mesure, le contrôle et les applications en laboratoire, en mettant l'accent sur les exigences en matière de compatibilité électromagnétique (CEM). Cette norme précise les exigences d'immunité pour les systèmes liés à la sécurité et les équipements destinés à remplir des fonctions de sécurité. Elle est particulièrement pertinente pour les applications industrielles opérant dans des environnements électromagnétiques spécifiés, conformément aux exigences de la norme IEC 61508 avec un niveau de sécurité (SIL) de 1 à 3. L'un des points forts de cette norme est qu'elle s'adapte à divers environnements industriels où les implications de la CEM sont critiques. Elle aborde des environnements industriels tant intérieurs qu'extérieurs, en prenant spécifiquement en compte les exigences des secteurs chimiques, pétrochimiques et pharmaceutiques. Les mesures d’atténuation proposées dans l'Annexe C sont basées sur des pratiques éprouvées, ce qui renforce la fiabilité des systèmes conformes à cette norme. La norme se distingue aussi par la définition claire des environnements électromagnétiques couverts, en contrastant avec l'environnement industriel général traité par la norme IEC 61326-3-1. Elle met l'accent sur des mesures telles que l'utilisation limitée de transmetteurs mobiles, la séparation des câbles de puissance, de contrôle et de communication, ainsi que les protections contre les surtensions et les impacts des orages. Ces spécifications sont cruciales pour assurer la continuité et la sécurité des opérations industrielles, contribuant ainsi à des installations sûres et efficaces. De plus, la norme exclut des systèmes et équipements considérés comme "prouvés en usage" selon IEC 61508 et ceux utilisés pour l'alarme incendie ou la sécurité des bâtiments, ce qui permet de clarifier son champ d'application et d'éviter toute confusion pour les praticiens et intégrateurs de systèmes. Dans l'ensemble, la SIST EN IEC 61326-3-2:2019 se révèle être un document essentiel pour les professionnels dans le domaine de l'équipement électrique, en offrant des orientations précises et des critères robustes pour l'évaluation de l'immunité des systèmes de sécurité dans des environnements industriels spécifiques. Son approche centrée sur la fonctionnalité et la sécurité des systèmes souligne son importance et sa pertinence dans le paysage industriel actuel.
SIST EN IEC 61326-3-2:2019 표준은 전기 측정, 제어 및 실험실용 장비의 EMC 요구 사항을 다루며, 특히 안전 관련 기능을 수행하기 위한 시스템 및 장비에 중점을 두고 있습니다. 이 표준의 적용 범위는 IEC 61326-1의 모든 장비를 포함하나, 특정 전자기 환경 내에서 산업적 응용을 위한 시스템과 장비로 제한됩니다. 이는 IEC 61508에서 정의한 SIL 1-3의 안전 기능을 수행하는 장비에 해당합니다. 이 표준의 강점은 공정 산업의 요구 사항에 맞춘 구체적인 전자기 환경을 정의하고, 테스트 값이 실제로 검증된 환경에서의 전자기 간섭에 대한 대응 방안을 제공한다는 점입니다. 주로 화학, 석유화학, 제약 제조 공장에서 사용되는 완전한 적합성을 혼합하기 위해 별도의 완화 조치를 명시하여 전자기 환경을 개선하고 있습니다. SIST EN IEC 61326-3-2:2019은 산업 환경의 주요 특성을 설명하며, 사전에 잘 정의된 안전 조건을 충족시키기 위한 요구 사항을 구현하는 것이 필수적입니다. 해당 환경은 제한된 접근성을 가지며, 모바일 송신기의 사용이 적고, 전원 공급 및 제어용으로 전용 케이블이 요구됩니다. 이러한 조건들은 전자기적 간섭을 최소화하고 안정성을 보장하는데 기여합니다. 또한, 이 표준은 강한 금속 구조로 이루어진 공장 건물, 적절한 과전압 및 번개 방지 조치, 정기적인 장비 및 시스템 유지보수 등을 포함하여 실제 산업 환경에서의 신뢰성을 증대시키기 위한 가이드라인을 제공합니다. 결론적으로, SIST EN IEC 61326-3-2:2019은 특정 전자기 환경에서 안전 기능을 수행하는 장비 및 시스템에 대한 명확한 요구사항을 제시함으로써, 실질적인 안전성을 확보하고 있으며, 그에 따라 산업 현장에서의 적용성과 중요성이 각별히 강조됩니다.
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