oSIST prEN IEC/IEEE 62582-4:2025

Nuclear power plants - Instrumentation and control important to safety - Electrical equipment condition monitoring methods - Part 4: Oxidation induction techniques

See the scope of IEC/IEEE 62582-4:2022. Adoption is to be implemented without modification.

Kernkraftwerke - Leittechnik mit sicherheitstechnischer Bedeutung - Zustandsüberwachung elektrischer Geräte - Teil 4: Oxidationsmethoden

Centrales nucléaires de puissance - Instrumentation et contrôle-commande importants pour la sûreté - Méthodes de surveillance de l’état des matériels électriques - Partie 4: Techniques d’induction à l’oxydation

Jedrske elektrarne - Merilna in nadzorna oprema za zagotavljanje varnosti - Metode za spremljanje stanja električne opreme - 4. del: Tehnike indukcijske oksidacije

General Information

• Status: Not Published
• Public Enquiry End Date: 31-Dec-2025
• ICS: 27.120.20 - Nuclear power plants. Safety
• Technical Committee: I09 - Imaginarni 09
• Current Stage: 4020 - Public enquire (PE) (Adopted Project)
• Start Date: 16-Oct-2025
• Due Date: 05-Mar-2026
• Ref Project: prEN IEC/IEEE 62582-4:2025 - Nuclear power plants - Instrumentation and control important to safety - Electrical equipment condition monitoring methods - Part 4: Oxidation induction techniques

Standards Content (Sample)

SLOVENSKI STANDARD
01-december-2025
Jedrske elektrarne - Merilna in nadzorna oprema za zagotavljanje varnosti -
Metode za spremljanje stanja električne opreme - 4. del: Tehnike indukcijske
oksidacije
Nuclear power plants - Instrumentation and control important to safety - Electrical
equipment condition monitoring methods - Part 4: Oxidation induction techniques
Kernkraftwerke - Leittechnik mit sicherheitstechnischer Bedeutung -
Zustandsüberwachung elektrischer Geräte - Teil 4: Oxidationsmethoden
Centrales nucléaires de puissance - Instrumentation et contrôle-commande importants
pour la sûreté - Méthodes de surveillance de l’état des matériels électriques - Partie 4:
Techniques d’induction à l’oxydation
Ta slovenski standard je istoveten z: prEN IEC/IEEE 62582-4:2025
ICS:
27.120.20 Jedrske elektrarne. Varnost Nuclear power plants. Safety
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD DRAFT
prEN IEC/IEEE 62582-4
NORME EUROPÉENNE
EUROPÄISCHE NORM
October 2025
ICS 27.120.20 -
English Version
Nuclear power plants - Instrumentation and control important to
safety - Electrical equipment condition monitoring methods - Part
4: Oxidation induction techniques
(IEC/IEEE 62582-4:2022)
Centrales nucléaires de puissance - Instrumentation et Kernkraftwerke - Leittechnik mit sicherheitstechnischer
contrôle-commande importants pour la sûreté - Méthodes Bedeutung - Zustandsüberwachung elektrischer Geräte -
de surveillance de l'état des matériels électriques - Partie 4: Teil 4: Oxidationsmethoden
Techniques d'induction à l'oxydation (IEC/IEEE 62582-4:2022)
(IEC/IEEE 62582-4:2022)
This draft European Standard is submitted to CENELEC members for enquiry.
Deadline for CENELEC: 2026-01-02.

The text of this draft consists of the text of IEC/IEEE 62582-4:2022.

If this draft becomes a European Standard, 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.

This draft European Standard was established by CENELEC 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,
Türkiye and the United Kingdom.

Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are aware and to
provide supporting documentation.

Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without notice and
shall not be referred to as a European Standard.

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
© 2025 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Project: 82119 Ref. No. prEN IEC/IEEE 62582-4:2025 E

European foreword
This document (prEN IEC/IEEE 62582-4:2025) consists of the text of document IEC/IEEE 62582-
4:2022, prepared by IEC/SC 45A “Instrumentation, control and electrical power systems of nuclear
facilities” of IEC/TC 45 "Nuclear instrumentation".
This document is currently submitted to the Enquiry.
The following dates are proposed:
• latest date by which the existence of this document (doa) dav + 6 months
has to be announced at national level
• latest date by which this document has to be (dop) dav + 12 months
implemented at national level by publication of an
identical national standard or by endorsement
• latest date by which the national standards (dow) dav + 36 months
conflicting with this document have to be withdrawn (to be confirmed or
modified when voting)
As stated in the nuclear safety directive 2009/71/EURATOM, Chapter 1, Article 2, item 2, Member States
are not prevented from taking more stringent safety measures in the subject-matter covered by the
Directive, in compliance with Community law.
In a similar manner, this document does not prevent Member States from taking more stringent nuclear
safety and/or security measures in the subject-matter covered by this document.

IEC/IEEE 62582-4 ®
Edition 2.0 2022-11
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Nuclear power plants – Instrumentation and control important to safety –

Electrical equipment condition monitoring methods –

Part 4: Oxidation induction techniques

Centrales nucléaires de puissance – Instrumentation et contrôle-commande

importants pour la sûreté – Méthodes de surveillance de l’état des matériels

électriques –
Partie 4: Techniques d’induction à l’oxydation

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 27.120.20 ISBN 978-2-8322-5841-5

– 2 – IEC/IEEE 62582-4:2022 © IEC/IEEE 2022
CONTENTS
FOREWORD . 4
INTRODUCTION . 7
1 Scope . 9
2 Normative references . 9
3 Terms and definitions . 9
4 Abbreviated terms and acronyms . 10
5 General description . 10
6 Applicability and reproducibility . 10
7 Measurement procedure . 11
7.1 Stabilisation of the polymeric materials . 11
7.2 Sampling. 11
7.2.1 General . 11
7.2.2 Sample requirements . 11
7.2.3 Precautions . 11
7.3 Sample preparation . 12
7.4 Instrumentation . 12
7.5 Calibration . 12
7.6 OIT measurement method . 12
7.6.1 Measurement procedure . 12
7.6.2 Temperature profile . 13
7.6.3 Gas flow . 14
7.6.4 Determining the value of oxidation onset . 14
7.6.5 Reporting . 15
7.7 OITP measurement method . 16
7.7.1 Measurement procedure . 16
7.7.2 Temperature profile . 16
7.7.3 Gas flow . 16
7.7.4 Determining the value of oxidation onset . 17
7.7.5 Reporting . 17
Annex A (informative)  Interpretation of thermogram . 19
A.1 Interpretation of OIT thermograms . 19
A.2 Interpretation of OITP thermograms . 22
Annex B (informative)  Example of a measurement report from OITP and OIT . 24
B.1 OITP measurements . 24
B.2 OIT measurements . 26
Annex C (informative)  Influence of set temperature on the OIT value . 28
Bibliography . 29

Figure 1 – OIT measurement – Schematic of temperature and gas profile and
corresponding heat flow . 13
Figure 2 – Schematic showing the types of baselines (flat, sloping, endothermic dip,
melting endotherm) observed for OIT and OITP measurements . 14
Figure 3 – Schematic showing definition of onset value for OIT and OITP
measurements . 15

IEC/IEEE 62582-4:2022 © IEC/IEEE 2022 – 3 –
Figure 4 – Schematic of the temperature for OITP measurements and the
corresponding heat flow . 16
Figure A.1 – Example of an OIT plot with clear baseline and onset . 19
Figure A.2 – Example of OIT plot with multiple onsets. 20
Figure A.3 – Example of OIT plot where the baseline is difficult to define . 21
–1
Figure A.4 – Example of OIT plot where heat flow is too low to use standard 0,1 W∙g
threshold . 21
Figure A.5 – Example of an OITP plot with a well-defined baseline and onset . 22
Figure A.6 – Example of an OITP plot for a semi-crystalline material showing a melting
endotherm prior to the oxidation onset . 23
Figure A.7 – Example of an OITP plot showing an endothermic dip immediately prior to
the oxidation onset . 23
Figure B.1 – Example of OITP test plot . 25
Figure B.2 – Example of OIT test plot . 27
Figure C.1 – Example of the influence of set temperature on the OIT value . 28

Table B.1 – Example of a measurement report from OITP . 24
Table B.2 – Example of a measurement report from OIT . 26

– 4 – IEC/IEEE 62582-4:2022 © IEC/IEEE 2022
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
NUCLEAR POWER PLANTS – INSTRUMENTATION AND CONTROL
IMPORTANT TO SAFETY – ELECTRICAL EQUIPMENT
CONDITION MONITORING METHODS –

Part 4: Oxidation induction techniques

FOREWORD
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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,
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