IEC 63522-29:2025

Electrical relays - Tests and measurements - Part 29: Capacitance

IEC 63522-29:2025 This part is used for testing the appropriate severities and conditions for measurements and tests designed to assess the ability of DUTs to perform under expected conditions of transportation, storage and all aspects of operational use.
It specifies how to ensure that the capacitances formed by parts of a relay do not exceed specified limits.

Relais électriques - Essais et mesurages - Partie 29: Capacité

IEC 63522-29:2025 La présente partie traite des essais de tous les types de relais électriques et elle évalue leur aptitude à fonctionner dans les conditions prévues de transport, de stockage et dans tous les aspects de leur utilisation opérationnelle.
Elle spécifie la façon de s'assurer que les capacités formées par les parties d'un relais ne dépassent pas les limites spécifiées.

General Information

• Status: Published
• Publication Date: 05-Jun-2025
• 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-Jun-2025
• Completion Date: 10-Jan-2025

Standards Content (Sample)

IEC 63522-29 ®
Edition 1.0 2025-06
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Electrical relays – Tests and measurements –
Part 29: Capacitance
Relais électriques – Essais et mesurages –
Partie 29: Capacité
ICS 29.120.70  ISBN 978-2-8327-0460-8

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– 2 – IEC 63522-29:2025 © IEC 2025
CONTENTS
FOREWORD . 3
1 Scope . 5
2 Normative references. 5
3 Terms and definitions . 5
4 Procedure . 5
4.1 Purpose . 5
4.2 Procedure . 5
4.3 Conditions to be specified . 6
5 Evaluation . 6
5.1 General . 6
5.2 Test report . 6
Bibliography . 7

INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
ELECTRICAL RELAYS – TESTS AND MEASUREMENTS –

Part 29: Capacitance
FOREWORD
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IEC 63522-29 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:
Draft Report on voting
94/1065/FDIS 94/1103/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 63522-29:2025 © IEC 2025
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 IEC 63522 series, published under the general title Electrical relays – Tests
and measurements, can be found on the IEC website.
This International Standard is to be used in conjunction IEC 63522-0:– .
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.
___________
Under preparation. Stage at the time of publication: IEC CDV 63522-0:2024.

ELECTRICAL RELAYS – TESTS AND MEASUREMENTS –

Part 29: Capacitance
1 Scope
This part of IEC 63522 is used for testing all kinds of electrical relays and for evaluating their
ability to perform under expected conditions of transportation, storage and all aspects of
operational use.
NOTE Examples for electrical relays in the sense of this document include electromechanical relays, reed relays,
reed contacts, reed switches, solid state relays, time relays and technology combinations of these.
It specifies how to ensure that the capacitances formed by parts of a relay do not exceed
specified limits.
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 63522-0:– , Electrical relays – Tests and measurements – Part 0: General and guidance
3 Terms and definitions
For the purposes of this document, the terms and definitions given in IEC 63522-0 apply.
ISO and IEC maintain terminology databases for use in standardization at the following
addresses:
• IEC Electropedia: available at https://www.electropedia.org/
• ISO Online browsing platform: available at https://www.iso.org/obp
4 Procedure
4.1 Purpose
The purpose of this test is to check that the capacitances formed by parts of the relay do not
exceed specified limits.
4.2 Procedure
The capacitances shall be measured by means of a measuring bridge, at a frequency of 1 kHz,
and at a voltage not exceeding 10 V, unless otherwise specified by the manufacturer.
___________
Under preparation. Stage at the time of publication: IEC CDV 63522-0:2024.

– 6 – IEC 63522-29:2025 © IEC 2025
4.3 Conditions to be specified
The conditions to be specified are the following:
a) measuring frequency and voltage, if other than 1 kHz and 10 V;
b) points of measurement(s) and points to be earthed;
c) limiting value(s) of capacitances;
NOTE Limiting values can be given by manufacturers specifications, application standards or similar sources.
d) test conditions (if deviating from conditions specified in IEC 63522-0).
5 Evaluation
5.1 General
The capacitances formed by parts of relays are measured according to Clause 4 and compared
with the specified limiting values. The test is passed when the measured capacitances are
within the specified limit of th
...