IEC 61810-2-1:2011

Electromechanical elementary relays - Part 2-1: Reliability - Procedure for the verification of B₁₀ values

IEC 61810-2-1:2011 specifies reliability test procedures for electromechanical elementary relays when enhanced requirements for the verification of reliability apply. Particular provisions are given for relays incorporated in safety-related control systems of machinery in accordance with IEC 62061 and ISO 13849-1. For such relays B10 values for dangerous failures (B10d values) are derived from the tests specified in this standard.
This publication is to be read in conjunction with IEC 61810-2:2011.

Relais électromécaniques élémentaires - Partie 2-1: Fiabilité - Procédure de vérification des valeurs de B₁₀

La CEI 61810-2-1:2011 spécifie les procédures d'essai de fiabilité pour les relais électromécaniques élémentaires lorsque des exigences renforcées pour la vérification de la fiabilité s'appliquent. Des dispositions particulières sont fournies pour les relais incorporés dans les systèmes de contrôle liés à la sécurité des machines selon la CEI 62061 et l'ISO 13849-1. Pour ces relais, les valeurs de B10 pour des défaillances dangereuses (valeurs de B10d) sont dérivées des essais spécifiés dans la présente norme.
Cette publication doit être lue conjointement avec la CEI 61810-2:2011.

General Information

• Status: Published
• Publication Date: 24-Feb-2011
• ICS: 17.240 - Radiation measurements
• ICS: 27.120 - Nuclear energy engineering
• ICS: 29.120.70 - Relays
• Technical Committee: TC 94 - Electrical relays
• Drafting Committee: WG 3 - TC 94/WG 3
• Current Stage: DELPUB - Deleted Publication
• Completion Date: 30-May-2017

Relations

• Replaces: IEC PAS 61810-2-1:2008 - Electromechanical elementary relays - Part 2-1: Reliability - Procedure for the verification of <i>B</i>₁₀ values
• Effective Date: 05-Sep-2023
• Revised: IEC 61810-2-1:2017 - Electromechanical elementary relays - Part 2-1: Reliability - Procedure for the verification of B₁₀ values
• Effective Date: 05-Sep-2023

Standards Content (Sample)

IEC 61810-2-1 ®
Edition 1.0 2011-02
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Electromechanical elementary relays –
Part 2-1: Reliability – Procedure for the verification of B values
Relais électromécaniques élémentaires –
Partie 2-1: Fiabilité – Procédure de vérification des valeurs de B
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IEC 61810-2-1 ®
Edition 1.0 2011-02
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Electromechanical elementary relays –
Part 2-1: Reliability – Procedure for the verification of B values
Relais électromécaniques élémentaires –
Partie 2-1: Fiabilité – Procédure de vérification des valeurs de B
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
CODE PRIX Q
ICS 29.120.70 ISBN 978-2-88912-375-9

– 2 – 61810-2-1  IEC:2011
CONTENTS
FOREWORD . 3
INTRODUCTION . 5
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 6
4 Verification of B . 7
4.1 General . 7
4.2 Requirements . 7
4.2.1 Test specimens . 7
4.2.2 Test circuit . 7
4.2.3 Contact loads . 7
4.2.4 Environmental conditions . 7
4.2.5 Operating conditions . 8
4.2.6 Failure criteria . 8
4.3 Performance of the tests . 8
4.3.1 Conformity test . 8
4.3.2 Periodic test . 8
5 Evaluation and verification of B . 9
10d
5.1 General . 9
5.2 Requirements . 10
5.2.1 Test specimens . 10
5.2.2 Test circuit . 10
5.2.3 Contact loads . 10
5.2.4 Environmental conditions . 10
5.2.5 Operating conditions . 10
5.2.6 Failure criteria . 10
5.3 Performance of the tests . 11
5.3.1 Conformity test . 11
5.3.2 Periodic test . 11
Annex A (informative) Example illustrating the assessment of malfunctions for B
10d
evaluation . 15
Bibliography . 17

Figure 1 – Schematic flowchart . 13
Figure 2 – Schematic flowchart for relays where dangerous failures have to be
assessed . 14

Table A.1 – Example with number of cycles at which malfunctions have been recorded . 15

61810-2-1  IEC:2011 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
ELECTROMECHANICAL ELEMENTARY RELAYS –

Part 2-1: Reliability –
Procedure for the verification of B values
FOREWORD
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International Standard IEC 61810-2-1 has been prepared by IEC technical committee 94: All-
or-nothing electrical relays.
This standard cancels and replaces IEC/PAS 61810-2-1 published in 2008. This edition
constitutes a technical revision.
This standard includes the following significant technical changes with respect to
IEC/PAS 61810-2-1:
• addition of inductive loads in Clause 4;
• specification of dielectric tests under Clause 4 and Clause 5;
.
• addition of informative Annex A illustrating the assessment of malfunctions for B
10d
– 4 – 61810-2-1  IEC:2011
The text of this standard is based on the following documents:
FDIS Report on voting
94/317/FDIS 94/326/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 parts of the IEC 61810 series can be found, under the general title
Electromechanical elementary relays, on the IEC website.
This International Standard is to be used in conjunction with IEC 61810-2:2011.
The committee has decided that the contents of this publication will remain unchanged until
the stability date indicated on the IEC web site 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,
...