EN 61810-2:2005
(Main)Electromechanical elementary relays - Part 2: Reliability
Electromechanical elementary relays - Part 2: Reliability
Covers test conditions and provisions for the evaluation of endurance tests using appropriate statistical methods to obtain reliability characteristics for relays.
Elektromechanische Elementarrelais - Teil 2: Funktionsfähigkeit (Zuverlässigkeit)
Relais électromécaniques élémentaires - Partie 2: Fiabilité
Couvre les conditions d'essai et les dispositions pour l'évaluation des essais d'endurance utilisant les méthodes statistiques appropriées pour obtenir les caractéristiques de fiabilité pour relais.
Osnovni elektromehanski releji - 2. del: Zanesljivost (IEC 61810-2:2005)
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
01-januar-2008
1DGRPHãþD
SIST EN 60255-23:2001
Osnovni elektromehanski releji - 2. del: Zanesljivost (IEC 61810-2:2005)
Electromechanical elementary relays - Part 2: Reliability
Elektromechanische Elementarrelais - Teil 2: Funktionsfähigkeit (Zuverlässigkeit)
Relais électromécaniques élémentaires - Partie 2: Fiabilité
Ta slovenski standard je istoveten z: EN 61810-2:2005
ICS:
29.120.70 Releji Relays
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EUROPEAN STANDARD EN 61810-2
NORME EUROPÉENNE
EUROPÄISCHE NORM May 2005
ICS 29.120.70 Supersedes EN 60255-23:1996
English version
Electromechanical elementary relays
Part 2: Reliability
(IEC 61810-2:2005)
Relais électromécaniques élémentaires Elektromechanische Elementarrelais
Partie 2: Fiabilité Teil 2: Funktionsfähigkeit (Zuverlässigkeit)
(CEI 61810-2:2005) (IEC 61810-2:2005)
This European Standard was approved by CENELEC on 2005-04-01. 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 Central Secretariat 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 Central Secretariat has the same status as the official versions.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Cyprus, Czech
Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden,
Switzerland and United Kingdom.
CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
Central Secretariat: rue de Stassart 35, B - 1050 Brussels
© 2005 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 61810-2:2005 E
Foreword
The text of document 94/214/FDIS, future edition 1 of IEC 61810-2, prepared by IEC TC 94,
All-or-nothing electrical relays, was submitted to the IEC-CENELEC parallel vote and was approved by
CENELEC as EN 61810-2 on 2005-04-01.
This European Standard supersedes EN 60255-23:1996.
The following dates were fixed:
– latest date by which the EN has to be implemented
at national level by publication of an identical
national standard or by endorsement (dop) 2006-01-01
– latest date by which the national standards conflicting
with the EN have to be withdrawn (dow) 2008-04-01
Annex ZA has been added by CENELEC.
__________
Endorsement notice
The text of the International Standard IEC 61810-2:2005 was approved by CENELEC as a European
Standard without any modification.
__________
- 3 - EN 61810-2:2005
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications
The following referenced documents are indispensable for the application 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 Where an international publication has been modified by common modifications, indicated by (mod), the relevant
EN/HD applies.
Publication Year Title EN/HD Year
IEC 60050-191 1990 International Electrotechnical Vocabulary - -
(IEV)
Chapter 191: Dependability and quality of
service
IEC 60050-444 2002 Part 444: Elementary relays - -
IEC 60300-3-5 2001 Dependability management - -
Part 3-5: Application guide - Reliability
test conditions and statistical test
principles
1)
IEC 61649 - Goodness-of-fit tests, confidence - -
intervals and lower confidence limits for
Weibull distributed data
IEC 61810-1 2003 Electromechanical elementary relays EN 61810-1 2004
Part 1: General and safety requirements
ISO 3534-1 1993 Statistics - Vocabulary and symbols - -
Part 1: Probability and general statistical
terms
1)
Undated reference.
NORME CEI
INTERNATIONALE IEC
61810-2
INTERNATIONAL
Première édition
STANDARD
First edition
2005-02
Relais électromécaniques élémentaires –
Partie 2:
Fiabilité
Electromechanical elementary relays –
Part 2:
Reliability
IEC 2005 Droits de reproduction réservés Copyright - all rights reserved
Aucune partie de cette publication ne peut être reproduite ni No part of this publication may be reproduced or utilized in any
utilisée sous quelque forme que ce soit et par aucun procédé, form or by any means, electronic or mechanical, including
électronique ou mécanique, y compris la photocopie et les photocopying and microfilm, without permission in writing from
microfilms, sans l'accord écrit de l'éditeur. the publisher.
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Telephone: +41 22 919 02 11 Telefax: +41 22 919 03 00 E-mail: inmail@iec.ch Web: www.iec.ch
CODE PRIX
Commission Electrotechnique Internationale PRICE CODE U
International Electrotechnical Commission
Международная Электротехническая Комиссия
Pour prix, voir catalogue en vigueur
For price, see current catalogue
61810-2 IEC:2005 – 3 –
CONTENTS
FOREWORD.7
INTRODUCTION.11
1 Scope .13
2 Normative references .13
3 Terms and definitions .15
4 General considerations .19
5 Test conditions .21
5.1 Test items .21
5.2 Environmental conditions .21
5.3 Operating conditions.21
5.4 Test equipment.23
6 Failure criteria .23
7 Output data .23
8 Analysis of output data .25
9 Presentation of reliability measures.25
Annex A (normative) Test circuit .29
A.1 Test circuit.29
A.2 Description and requirements.33
A.3 Test schematic .35
A.4 Special loads for telecom and signal relays .35
A.5 Special loads with inrush current.37
Annex B (normative) Data analysis.43
B.1 Introduction .43
B.2 Symbols and definitions .43
B.3 Procedure.43
Annex C (informative) Example .51
C.1 Distribution parameters.51
C.2 Mean cycles to failure (MCTF).51
C.3 Useful life .51
C.4 Mean time to failure (MTTF) .51
Annex D (normative) Contact categories.53
D.1 Contact category 0 (CC 0) – Dry circuit .53
D.2 Contact category 1 (CC 1) – Low load without arcing .53
D.3 Contact category 2 (CC 2) – High load with arcing .53
61810-2 IEC:2005 – 5 –
Figure A.1 – Standard test circuit .29
Figure A.2 – Functional block diagram.31
Figure A.3 – Circuit for cable load .35
Figure A.4 – Test circuit for inrush current loads (e.g. capacitive loads and simulated
tungsten filament lamp loads) a.c. circuits.37
Figure A.5 – Example for a tungsten filament lamp test for relays rated 10/100 A/250
V~/2,5 ms.39
Figure A.6 – Test circuit for inrush current loads (e.g. capacitive loads and simulated
lamp loads) – d.c. circuits .39
Figure A.7 – Test circuit for inrush current loads (e.g. simulated fluorescent lamp
loads) with power-factor correction.41
Figure D.1 – Contact categories .53
Table 1 – Reliability measures .25
Table A.1 – Characteristics of power sources for contact loads .31
Table A.2 – Standard contact load characteristics.33
Table B.1 – Values of the gamma function.47
Table B.2 – Fractiles of the normal distribution .49
61810-2 IEC:2005 – 7 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
ELECTROMECHANICAL ELEMENTARY RELAYS −
Part 2: Reliability
FOREWORD
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