Electromechanical telecom elementary relays of assessed quality - Part 1: Generic specification and blank detail specification

IEC 61811-1:2015 applies to electromechanical telecom elementary relays. Relays according to this standard are provided for the operation in telecommunication applications. However, as electromechanical elementary relays, they are also suitable for particular industrial and other applications. This standard selects from IEC 61810 series and other sources the appropriate methods of test to be used in detail specifications derived from this specification, and contains basic test schedules to be used in the preparation of such specifications in accordance with this standard. Detailed test schedules are contained in the detail specifications. This second edition of IEC 61811-1 cancels and replaces IEC 61811-1 published in 1999, IEC 61811-10 published in 2002, IEC 61811-11 published in 2002, IEC 61811-50 published in 2002, IEC 61811-51 published in 2002, IEC 61811-52 published in 2002, IEC 61811-53 published in 2002, IEC 61811-54 published in 2002, IEC 61811-55 published in 2002, and constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous editions:
a) to get one document for telecom relays;
b) update all relevant references.

Relais télécom électromagnétiques élémentaires soumis au régime d'assurance qualité - Partie 1: Spécification générique et spécification particulière cadre

L'IEC 61811-1:2015 s'applique aux relais télécom électromécaniques élémentaires. Les relais conformes à la présente norme assurent le fonctionnement des applications de télécommunication. Toutefois, comme les relais électromécaniques élémentaires, ils sont également adaptés aux applications industrielles, entre autres. La présente norme sélectionne dans la série IEC 61810 et dans d'autres sources les méthodes d'essai appropriées utilisées dans les spécifications particulières déduites de la présente spécification. Elle contient les programmes d'essai de base à utiliser dans le cadre de la préparation de ces spécifications conformément à la présente norme. Les programmes d'essai détaillés sont contenus dans les spécifications particulières. Cette deuxième édition de l'IEC 61811-1 annule et remplace l'IEC 61811-1 publiée en 1999, l'IEC 61811-10 publiée en 2002, l'IEC 61811-11 publiée en 2002, l'IEC 61811-50 publiée en 2002, l'IEC 61811-51 publiée en 2002, l'IEC 61811-52 publiée en 2002, l'IEC 61811-53 publiée en 2002, l'IEC 61811-54 publiée en 2002, l'IEC 61811-55 publiée en 2002, et constitue une révision technique. Cette édition inclut les modifications techniques majeures suivantes par rapport aux éditions précédentes:
a) mise à disposition d'un document concernant les relais télécom;
b) mise à jour de toutes les références appropriées.

General Information

Status
Published
Publication Date
27-Jan-2015
Current Stage
PPUB - Publication issued
Start Date
28-Jan-2015
Completion Date
28-Jan-2015
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IEC 61811-1
Edition 2.0 2015-01
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Electromechanical telecom elementary relays of assessed quality –
Part 1: Generic specification and blank detail specification
Relais télécom électromécaniques élémentaires soumis au régime d’assurance
qualité –
Partie 1: Spécification générique et spécification particulière cadre
IEC 61811-1:2015-01(en-fr)
---------------------- Page: 1 ----------------------
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---------------------- Page: 2 ----------------------
IEC 61811-1
Edition 2.0 2015-01
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Electromechanical telecom elementary relays of assessed quality –
Part 1: Generic specification and blank detail specification
Relais télécom électromécaniques élémentaires soumis au régime d’assurance
qualité –
Partie 1: Spécification générique et spécification particulière cadre
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 29.120.70 ISBN 978-2-8322-2235-5

Warning! Make sure that you obtained this publication from an authorized distributor.

Attention! Veuillez vous assurer que vous avez obtenu cette publication via un distributeur agréé.

® Registered trademark of the International Electrotechnical Commission
Marque déposée de la Commission Electrotechnique Internationale
---------------------- Page: 3 ----------------------
– 2 – IEC 61811-1:2015  IEC 2015
CONTENTS

FOREWORD ........................................................................................................................... 5

1 Scope .............................................................................................................................. 7

2 Normative references ...................................................................................................... 7

3 Terms and definitions ...................................................................................................... 8

3.1 Type of relays ......................................................................................................... 8

3.2 Types of contacts .................................................................................................... 8

3.3 Contact fault and contact failure .............................................................................. 9

3.4 Relay malfunction, relay failure ............................................................................... 9

3.5 Relay construction types ......................................................................................... 9

3.6 Inspection level and sample size ........................................................................... 10

4 Rated values ................................................................................................................. 10

4.1 General ................................................................................................................. 10

4.2 Rated coil voltages ............................................................................................... 10

4.3 Contact-circuit resistance ...................................................................................... 10

4.4 Dielectric test ........................................................................................................ 10

4.5 Impulse voltage test .............................................................................................. 10

4.6 Insulation resistance ............................................................................................. 11

4.7 Number of operations determining electrical endurance ........................................ 11

4.8 Contact failure rate for test evaluation purposes ................................................... 11

5 Marking and documentation ........................................................................................... 11

5.1 General ................................................................................................................. 11

5.2 Marking of the relay .............................................................................................. 11

5.3 Marking of the package ......................................................................................... 11

5.4 Coded date of manufacture ................................................................................... 11

6 Preparation of blank detail and detail specifications ....................................................... 11

7 Quality assessment procedures ..................................................................................... 13

7.1 Primary stage of manufacture ............................................................................... 13

7.2 Structurally similar relays ...................................................................................... 13

7.3 Qualification approval procedures ......................................................................... 13

7.4 Quality conformance inspection ............................................................................ 13

7.4.1 Grouping of tests ........................................................................................... 13

7.4.2 Resubmission of rejected lots ........................................................................ 14

7.4.3 Delivery of relays subjected to destructive tests or non-destructive tests ....... 14

7.4.4 Delayed delivery ............................................................................................ 14

7.4.5 Supplementary procedure for deliveries ......................................................... 15

7.4.6 Unchecked parameters .................................................................................. 15

7.4.7 Release for delivery before completion of group B tests ................................. 15

7.4.8 Screening procedures .................................................................................... 15

7.4.9 Formation of inspection lots ........................................................................... 15

7.4.10 Periodic inspection ........................................................................................ 15

7.5 Periodic inspection / Intervals between tests ......................................................... 15

8 Test schedule ................................................................................................................ 16

8.1 Test sequence ...................................................................................................... 16

8.2 Types of relays, based upon environmental protection (relay technology (RT))

............................................................................................................................. 16

8.3 Categories of application of contacts .................................................................... 16

---------------------- Page: 4 ----------------------
IEC 61811-1:2015  IEC 2015 – 3 –

8.4 Order of tests ........................................................................................................ 16

8.5 Test groups and subgroups ................................................................................... 16

9 Tests ............................................................................................................................. 21

9.1 Standard conditions for testing .............................................................................. 21

9.2 Mounting of test specimens during the test ........................................................... 21

9.3 General conditions for testing ............................................................................... 21

10 Ordering information ...................................................................................................... 21

Annex A (informative) Relay reliability – Failure rate data .................................................... 22

A.1 General ................................................................................................................. 22

A.2 Scope ................................................................................................................... 22

A.3 Description of the relay ......................................................................................... 22

A.3.1 Identification .................................................................................................. 22

A.3.2 Ratings .......................................................................................................... 22

A.4 Fault and failure data ............................................................................................ 23

A.4.1 Fault and failure definition ............................................................................. 23

A.4.2 Fault application ............................................................................................ 23

A.4.3 Failure definition ............................................................................................ 23

A.4.4 Failure application ......................................................................................... 23

A.5 Source of data ...................................................................................................... 23

A.6 Weibull approach .................................................................................................. 23

A.7 WeiBayes approach .............................................................................................. 24

A.7.1 Description .................................................................................................... 24

A.7.2 Method .......................................................................................................... 24

A.7.3 WeiBayes without failures .............................................................................. 24

A.7.4 WeiBayes with failures ................................................................................... 24

A.7.5 WeiBayes case study ..................................................................................... 25

Annex B (informative) Characteristic values of the relay ...................................................... 27

B.1 General data ......................................................................................................... 27

B.2 Coil data ............................................................................................................... 28

B.3 Contact data ......................................................................................................... 28

B.3.1 Electrical endurance and switching frequency ................................................ 28

B.3.2 Static contact-circuit resistance ..................................................................... 28

B.3.3 Mechanical endurance ................................................................................... 28

B.3.4 Timing (without suppression device) .............................................................. 29

B.4 Mounting ............................................................................................................... 29

B.5 Environmental data ............................................................................................... 29

B.6 Package of relays for automatic handling (if applicable) ........................................ 29

Annex C (informative) Blank detail and detail specification .................................................. 30

C.1 Examples for front pages ...................................................................................... 30

C.1.1 General ......................................................................................................... 30

C.1.2 Type 0 – Non-standardized types and construction ........................................ 30

C.1.3 Type 1 – Two change-over contacts, 20 mm × 10 mm base ........................... 31

C.1.4 Type 2 – Two change-over contacts, 14 mm × 9 mm base ............................. 32

C.1.5 Type 3 – Two change-over contacts, 15 mm × 7,5 mm base .......................... 33

C.1.6 Type 4 – Two change-over contacts, 11 mm × 7,5 mm (max.) base ............... 34

C.1.7 Key to front page ........................................................................................... 35

C.2 Qualification approval procedures ......................................................................... 35

C.3 Quality conformance inspection ............................................................................ 35

---------------------- Page: 5 ----------------------
– 4 – IEC 61811-1:2015  IEC 2015

C.4 Formation of inspection lots .................................................................................. 36

Annex D (informative) Definition of subgroups ..................................................................... 53

Bibliography .......................................................................................................................... 54

Figure A.1 – New compressor design WeiBayes versus old design ....................................... 26

Table 1 – Group A ................................................................................................................ 17

Table 2 – Group B ................................................................................................................ 18

Table 3 – Group C ................................................................................................................ 19

Table B.1 – Dielectric test voltages ....................................................................................... 27

Table B.2 – Impulse test voltages ......................................................................................... 27

Table B.3 – Coil data ............................................................................................................ 28

Table B.4 – Loads, contact-circuit resistance limits, switching cycles and frequencies

for electrical endurance and overload tests ........................................................................... 28

Table C.1 – Quality conformance inspection ......................................................................... 36

Table C.2 – Qualification approval ........................................................................................ 50

Table C.3 – Industrial qualification ........................................................................................ 52

---------------------- Page: 6 ----------------------
IEC 61811-1:2015  IEC 2015 – 5 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
______________
ELECTROMECHANICAL TELECOM ELEMENTARY
RELAYS OF ASSESSED QUALITY –
Part 1: Generic specification and blank detail specification
FOREWORD

1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising

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, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC

Publication(s)”). Their preparation is entrusted to technical committees; any IEC National Committee interested

in the subject dealt with may participate in this preparatory work. International, governmental and non-

governmental organizations liaising with the IEC also participate in this preparation. IEC collaborates closely

with the International Organization for Standardization (ISO) in accordance with conditions determined by

agreement between the two organizations.

2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international

consensus of opinion on the relevant subjects since each technical committee has representation from all

interested IEC National Committees.

3) IEC Publications have the form of recommendations for international use and are accepted by IEC National

Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC

Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any

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4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications

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5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity

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8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is

indispensable for the correct application of this publication.

9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of

patent rights. IEC shall not be held responsible for identifying any or all such patent rights.

International Standard IEC 61811-1 has been prepared by IEC technical committee 94: All-or-

nothing electrical relays.
This second edition of IEC 61811-1 cancels and replaces
• IEC 61811-1 published in 1999,
• IEC 61811-10 published in 2002,
• IEC 61811-11 published in 2002,
• IEC 61811-50 published in 2002,
• IEC 61811-51 published in 2002,
• IEC 61811-52 published in 2002,
• IEC 61811-53 published in 2002,
• IEC 61811-54 published in 2002,
---------------------- Page: 7 ----------------------
– 6 – IEC 61811-1:2015  IEC 2015
• IEC 61811-55 published in 2002,

and constitutes a technical revision. This edition includes the following significant technical

changes with respect to the previous editions:
a) to get one document for telecom relays;
b) update all relevant references;
The text of this standard is based on the following documents:
FDIS Report on voting
94/379/FDIS 94/383/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.

A list of all parts in the IEC 61811 series, published under the general title Electromechanical

telecom elementary relays of assessed quality, can be found on the IEC website.

Future standards in this series will carry the new general title as cited above. Titles of existing

standards in this series will be updated at the time of the next edition.
This publication was drafted in accordance with ISO/IEC Directives, Part 2.

The committee has decided that the contents of this publication will remain unchanged until

the stability date indicated on the IEC website 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, or
• amended.
---------------------- Page: 8 ----------------------
IEC 61811-1:2015  IEC 2015 – 7 –
ELECTROMECHANICAL TELECOM ELEMENTARY
RELAYS OF ASSESSED QUALITY –
Part 1: Generic specification and blank detail specification
1 Scope

This part of IEC 61811 applies to electromechanical telecom elementary relays. Relays

according to this standard are provided for the operation in telecommunication applications.

However, as electromechanical elementary relays, they are also suitable for particular

industrial and other applications.

This standard selects from IEC 61810 series and other sources the appropriate methods of test to

be used in detail specifications derived from this specification, and contains basic test

schedules to be used in the preparation of such specifications in accordance with this standard.

Detailed test schedules are contained in the detail specifications.
2 Normative references

The following documents, in whole or in part, are normatively referenced in this document and

are indispensable for its application. For dated references, only the edition cited applies. For

undated references, the latest edition of the referenced document (including any
amendments) applies.
IEC 60062:2004, Marking codes for resistors and capacitors
IEC 60068-1:2013, Environmental testing – Part 1: General and guidance

IEC 60068-2-17:1994, Basic environmental testing procedures – Part 2-17: Tests – Test Q:

Sealing

IEC 60068-2-20:2008, Environmental testing – Part 2-20: Tests – Test T: Test methods for

solderability and resistance to soldering heat of devices with leads

IEC 60068-2-58:2004, Environmental testing – Part 2-58: Tests – Test Td: Test methods for

solderability, resistance to dissolution of metallization and to soldering heat of surface

mounting devices (SMD)
IEC 60410:1973, Sampling plans and procedures for inspection by attributes

IEC 60695-11-5:2004, Fire hazard testing – Test flames – Needle-flame test method –

Apparatus, confirmatory test arrangement and guidance
IEC 61810 (all parts), Electromechanical elementary relays

IEC 61810-1:2008, Electromechanical elementary relays – Part 1: General requirements

IEC 61810-2:2011, Electromechanical elementary relays – Part 2: Reliability

IEC 61810-7:2006, Electromechanical elementary relays – Part 7: Test and measurement

procedures
---------------------- Page: 9 ----------------------
– 8 – IEC 61811-1:2015  IEC 2015
ISO 2859 (all parts), Sampling procedures for inspection by attributes
3 Terms and definitions

For the purposes of this document, the terms and definitions given in IEC 61810 series, as

well as the following apply.
3.1 Type of relays

The most frequent types of electromechanical telecom elementary relays are defined in 3.1.1,

3.1.2, 3.1.3 and 3.1.4.
3.1.1
bistable relay

electrical relay which, having responded to an energizing quantity and having changed its

condition, remains in that condition after the quantity has been removed; a further appropriate

energization is required to make it change its condition.
[SOURCE:IEC 60050-444:2002, 444-01-08]
3.1.2
monostable relay

electrical relay which, having responded to an energizing quantity and having changed its

condition, returns to its previous condition when that quantity is removed
[SOURCE: IEC 60050-444:2002, 444-01-07]
3.1.3
non-polarized relay

electrical relay, the change of condition of which does not depend upon the polarity of its

energizing quantity
[SOURCE: IEC 60050-444:2002, 444-01-10]
3.1.4
polarized relay
polarized elementary relay

electrical relay, the change of condition of which depends upon the polarity of its d.c.

energizing quantity

[SOURCE: IEC 60050-444:2002, 444-01-09; modified – In the definition, "elementary relay"

has been replaced by "electrical relay".]
3.2 Types of contacts
3.2.1
change-over break-before-make contact
change-over contact, one contact circuit of which breaks before the other makes

[SOURCE: IEC 60050-444:2002,444-04-21, modified – The definition has been reworded.]

3.2.2
change-over make-before-break contact
change-over contact, one contact circuit of which makes before the other breaks

[SOURCE: IEC 60050-444:2002, 444-04-20, modified – The definition has been reworded.]

---------------------- Page: 10 ----------------------
IEC 61811-1:2015  IEC 2015 – 9 –
3.3 Contact fault and contact failure
3.3.1
...

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