IEC 63522-13:2024

Electrical relays - Tests and measurements - Part 13: Corrosive atmospheres due to sulfur impact

IEC 63522-13:2024 is used for testing electromechanical elementary relays (electromechanical relays, reed relays, reed contacts, reed switches and technology combinations of these) and for evaluating their ability to perform under expected conditions of transportation, storage and all aspects of operational use.
This document defines a standard test method to simulate impacts of sulfuric atmospheres to relays. The test conditions simulate an artificial situation and allow a performance comparison for usability of the devices under test (DUT) with regard to known and existing switching solutions.
The test is a static test without actual operation of the DUT to simulate a worst-case scenario for corrosion, since corrosion increases over time. The corrosion layer can potentially create contact sticking, increase resistance or other undesired effects in the relay. Those aspects can be affected by DUT actuations during the test, which can destroy the corrosion layers or hide relevant long-term effects.
In addition to polluted atmospheres, the suitability of the DUT for use and/or storage in corrosive atmospheres can be assessed in a salt-laden atmosphere as described in IEC 63522-44.

Relais électriques - Essais et mesurages - Partie 13: Atmosphères corrosives - Atmosphères polluées

Le IEC 63522-13:2024 traite des essais des relais électromécaniques élémentaires (relais électromécaniques, relais à lames souples, contacts à lames souples et leur combinaisons technologiques) et permet d'évaluer leur aptitude à fonctionner dans des conditions prévues de transport, de stockage, et tous les aspects d'utilisation opérationnelle.
Le présent document définit une méthode d'essai normalisée qui vise à simuler les impacts des atmosphères sulfuriques sur les relais. Les conditions d'essai simulent une situation artificielle et permettent une comparaison des performances en matière d'aptitude à l'emploi des dispositifs soumis à l'essai (DUT, Devices Under Test) par rapport à des solutions de commutation existantes connues.
L'essai est un essai statique sans fonctionnement réel du DUT afin de simuler le scénario le plus défavorable en ce qui concerne la corrosion, celle-ci augmentant avec le temps. La couche de corrosion peut potentiellement créer un collage des contacts, une augmentation de la résistance ou d'autres effets indésirables dans le relais. Ces aspects peuvent être altérés par les manœuvres du DUT au cours de l'essai, qui peuvent détruire les couches ou masquer les effets pertinents à long terme.
Outre les atmosphères polluées, l'aptitude du DUT à être utilisé et/ou stocké dans des atmosphères corrosives peut être évaluée dans une atmosphère saline, comme cela est décrit dans l'IEC 63522-44.

General Information

• Status: Published
• Publication Date: 04-Dec-2024
• ICS: 29.120.70 - Relays
• Technical Committee: TC 94 - Electrical relays
• Drafting Committee: WG 3 - TC 94/WG 3
• Current Stage: PPUB - Publication issued
• Start Date: 06-Dec-2024
• Completion Date: 05-Dec-2024

Standards Content (Sample)

IEC 63522-13 ®
Edition 1.0 2024-12
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Electrical relays – Tests and measurements –
Part 13: Corrosive atmospheres due to sulfur impact

Relais électriques – Essais et mesurages –
Partie 13: Atmosphères corrosives – Atmosphères polluées
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IEC 63522-13 ®
Edition 1.0 2024-12
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Electrical relays – Tests and measurements –

Part 13: Corrosive atmospheres due to sulfur impact

Relais électriques – Essais et mesurages –

Partie 13: Atmosphères corrosives – Atmosphères polluées

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 29.120.70  ISBN 978-2-8322-4244-5

– 2 – IEC 63522-13:2024 © IEC 2024
CONTENTS
FOREWORD . 3
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 6
4 Test procedure . 6
4.1 Purpose . 6
4.2 Procedure . 6
4.3 Conditions . 7
5 Evaluation . 7
5.1 General . 7
5.2 Test report . 8
Bibliography . 9

INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
ELECTRICAL RELAYS –
TESTS AND MEASUREMENTS –
Part 13: Corrosive atmospheres due to sulfur impact

FOREWORD
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IEC 63522-13 has been prepared by IEC technical committee 94: Electrical relays. It is an
International Standard.
The text of this International Standard is based on the following documents:
FDIS Report on voting
94/1051/FDIS 94/1080/RVD
Full information on the voting for its approval can be found in the report on voting indicated in
the above table.
The language used for the development of this International Standard is English.

– 4 – IEC 63522-13:2024 © IEC 2024
This document was drafted in accordance with ISO/IEC Directives, Part 2, and developed in
accordance with ISO/IEC Directives, Part 1 and ISO/IEC Directives, IEC Supplement, available
at www.iec.ch/members_experts/refdocs. The main document types developed by IEC are
described in greater detail at www.iec.ch/publications.
A list of all parts of the IEC 63522 series, published under the general title Electrical relays –
Tests and measurements, can be found on the IEC website.
The committee has decided that the contents of this document will remain unchanged until the
stability date indicated on the IEC website under webstore.iec.ch in the data related to the
specific document. At this date, the document will be
• reconfirmed,
• withdrawn, or
• revised.
ELECTRICAL RELAYS –
TESTS AND MEASUREMENTS –
Part 13: Corrosive atmospheres due to sulfur impact

1 Scope
This document is used for testing electromechanical elementary relays (electromechanical
relays, reed relays, reed contacts, reed switches and technology combinations of these) and
for evaluating their ability to perform under expected conditions of transportation, storage and
all aspects of operational use.
This document defines a standard test method to simulate impacts of sulfuric atmospheres to
relays. The test conditions simulate an artificial situation and allow a performance comparison
for usability of the devices under test (DUT) with regard to known and existing switching
solutions.
The test is a static test without actual operation of the DUT to simulate a worst-case scenario
for corrosion, since corrosion increases over time. The corrosion layer can potentially create
contact sticking, increase resistance or other undesired effects in the relay. Those aspects can
be affected by DUT actuations during the test, which can destroy the corrosion layers or hide
relevant long-term effects.
In addition to polluted atmospheres, the suitability of the DUT for use and/or storage in corrosive
atmospheres can be assessed in a salt-laden atmosphere as described in IEC 63522-44.
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 cited applies.
For undated references, the latest edition of the referenced document (including any
amendments) applies.
IEC 60068-2-42:2003, Environmental testing – Part 2-42: Tests – Test Kc: Sulfur dioxide test
for contacts and connections
IEC 60068-2-43:2003, Environmental testing – Part 2-43: Tests – Test Kd: Hydrogen sulphide
test for contacts and connection
...