Electromechanical elementary relays of assessed quality -- Part 10: Sectional specification - Relays for industrial application

Is based on the basic relay standard EN 61810-1 as well as on the generic specification EN 61811-1 and selects from EN 61810-7 the appropriate test and measurement procedures to be used in detail specifications derived from this specification

Elektromechanische Elementarrelais mit bewerteter Qualität -- Teil 10: Rahmenspezifikation - Relais für industrielle Anwendungen

Relais élémentaires électromécaniques soumis au régime d'assurance de la qualité -- Partie 10: Spécification intermédiaire - Relais pour applications industrielles

En anglais seulement

Electromechanical elementary relays of assessed quality - Part 10: Sectional specification - Relays for industrial application

General Information

Status
Published
Publication Date
31-Aug-2003
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
01-Sep-2003
Due Date
01-Sep-2003
Completion Date
01-Sep-2003

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SLOVENSKI SIST EN 61811-10:2003

STANDARD
september 2003
Electromechanical elementary relays of assessed quality - Part 10: Sectional
specification - Relays for industrial application
ICS 29.120.70 Referenčna številka
SIST EN 61811-10:2003(en)
©  Standard je založil in izdal Slovenski inštitut za standardizacijo. Razmnoževanje ali kopiranje celote ali delov tega dokumenta ni dovoljeno

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EUROPEAN STANDARD EN 61811-10
NORME EUROPÉENNE
EUROPÄISCHE NORM February 2003

ICS 29.120.70


English version


Electromechanical elementary relays of assessed quality
Part 10: Sectional specification –
Relays for industrial application
(IEC 61811-10:2002)


Relais élémentaires électromécaniques Elektromechanische Elementarrelais
soumis au régime d'assurance mit bewerteter Qualität
de la qualité Teil 10: Rahmenspezifikation –
Partie 10: Spécification intermédiaire - Relais für industrielle Anwendungen
Relais pour applications industrielles (IEC 61811-10:2002)
(CEI 61811-10:2002)






This European Standard was approved by CENELEC on 2003-02-01. 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, Czech Republic,
Denmark, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Luxembourg, Malta,
Netherlands, Norway, Portugal, Slovakia, 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


© 2003 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.

Ref. No. EN 61811-10:2003 E

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EN 61811-10:2003 - 2 -
Foreword

The text of document 94/168/FDIS, future edition 1 of IEC 61811-10, 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 61811-10 on 2003-02-01.

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) 2003-11-01
– latest date by which the national standards conflicting
 with the EN have to be withdrawn (dow) 2006-02-01

Annexes designated "normative" are part of the body of the standard.
Annexes designated "informative" are given for information only.
In this standard, annex ZA is normative and annexes A and B are informative.
Annex ZA has been added by CENELEC.
__________

Endorsement notice

The text of the International Standard IEC 61811-10:2002 was approved by CENELEC as a European
Standard without any modification.
__________

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- 3 - EN 61811-10:2003
Annex ZA
(normative)

Normative references to international publications
with their corresponding European publications
This European Standard incorporates by dated or undated reference, provisions from other
publications. These normative references are cited at the appropriate places in the text and the
publications are listed hereafter. For dated references, subsequent amendments to or revisions of any
of these publications apply to this European Standard only when incorporated in it by amendment or
revision. For undated references the latest edition of the publication referred to applies (including
amendments).
NOTE When an international publication has been modified by common modifications, indicated by (mod), the relevant
EN/HD applies.
Publication Year Title EN/HD Year
IEC 60062 1992 Marking codes for resistors and EN 60062 1993
capacitors A11 2001

IEC 60255-23 1994 Electrical relays EN 60255-23 1996
Part 23: Contact performance

IEC 60410 1973 Sampling plans and procedures for - -
inspection by attributes

IEC 61709 1996 Electronic components - Reliability - EN 61709 1998
Reference conditions for failure rates
and stress models for conversion

IEC 61810-1 1998 Electromechanical non-specified time EN 61810-1 1998
all-or-nothing relays
Part 1: General requirements

IEC 61810-5 1998 Part 5: Insulation coordination EN 61810-5 1998

IEC 61810-7 1997 Part 7: Test and measurement - -
procedures

IEC 61811-1 1999 Electromechanical non-specified time EN 61811-1 1999
all-or-nothing relays of assessed quality
Part 1: Generic specification

1)
IEC QC 001002-3 - IEC Quality Assessment System for - -
Electronic Components (IECQ) - Rules
of Procedure
Part 3: Approval procedures




1)
Undated reference.

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INTERNATIONAL IEC
STANDARD
61811-10
QC 160100
First edition
2002-11
Electromechanical elementary relays
of assessed quality –
Part 10:
Sectional specification –
Relays for industrial application
Relais élémentaires électromécaniques
soumis au régime d'assurance de la qualité –
Partie 10:
Spécification intermédiaire –
Relais pour applications industrielles
© IEC 2002 ⎯ Copyright - all rights reserved
No part of this publication may be reproduced or utilized in any form or by any means, electronic or
mechanical, including photocopying and microfilm, without permission in writing from the publisher.
International Electrotechnical Commission, 3, rue de Varembé, PO Box 131, CH-1211 Geneva 20, Switzerland
Telephone: +41 22 919 02 11 Telefax: +41 22 919 03 00 E-mail: inmail@iec.ch  Web: www.iec.ch
PRICE CODE
Commission Electrotechnique Internationale
S
International Electrotechnical Commission
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For price, see current catalogue

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– 2 – 61811-10 © IEC:2002(E)
CONTENTS
FOREWORD . 3
1 General . 5
1.1 Scope . 5
1.2 Normative references . 5
1.3 Marking . 6
1.4 Ordering information. 6
2 Quality assessment procedures . 6
2.1 Primary stage of manufacture . 6
2.2 Structurally similar relays. 6
2.3 Subcontracting . 7
2.4 Qualification approval procedures. 7
2.5 Quality conformance inspection requirements. 7
2.6 Test schedule . 7
2.7 Order of tests . 8
3 Preparation of blank detail and detail specifications. 8
3.1 Contents of blank detail and detail specifications. 8
3.2 Basic test schedule. 9
3.3 Test schedule for blank detail specifications .10
4 Relay reliability – Failure rate data.13
Annex A (informative) Explanations and examples regarding IL and AQL values.15
Annex B (informative) Data base for failure rates .17
Figure B.1 – Factor π depending on the operating cycles .20
S
Table 1 – Tests for quality conformance inspection . 10-13
Table B.1 – Factor π .20
ES
Table B.2 – Factor π .21
T

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61811-10 © IEC:2002(E) – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
ELECTROMECHANICAL ELEMENTARY RELAYS
OF ASSESSED QUALITY –
Part 10: Sectional specification –
Relays for industrial application
FOREWORD
1) The IEC (International Electrotechnical Commission) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of the 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, the IEC publishes International Standards. 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. The 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 the 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 National Committees.
3) The documents produced have the form of recommendations for international use and are published in the form
of standards, technical specifications, technical reports or guides and they are accepted by the National
Committees in that sense.
4) In order to promote international unification, IEC National Committees undertake to apply IEC International
Standards transparently to the maximum extent possible in their national and regional standards. Any
divergence between the IEC Standard and the corresponding national or regional standard shall be clearly
indicated in the latter.
5) The IEC provides no marking procedure to indicate its approval and cannot be rendered responsible for any
equipment declared to be in conformity with one of its standards.
6) Attention is drawn to the possibility that some of the elements of this International Standard may be the subject
of patent rights. The IEC shall not be held responsible for identifying any or all such patent rights.
International Standard IEC 61811-10 has been prepared by IEC technical committee 94: All-
or-nothing electrical relays.
This standard cancels and replaces IEC 60255-19 (1983) and constitutes a technical revision.
The text of this standard is based on the following documents:
FDIS Report on voting
94/168/FDIS 94/172/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.
The QC number that appears on the front cover of this publication is the specification number
in the IEC Quality Assessment System for Electronic Components (IECQ).
This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.

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– 4 – 61811-10 © IEC:2002(E)
The committee has decided that the contents of this publication will remain unchanged until
2006. At this date, the publication will be
• reconfirmed;
• withdrawn;
• replaced by a revised edition, or
• amended.

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61811-10 © IEC:2002(E) – 5 –
ELECTROMECHANICAL ELEMENTARY RELAYS
OF ASSESSED QUALITY –
Part 10: Sectional specification –
Relays for industrial application
1 General
1.1 Scope
This part of IEC 61811 is a sectional specification applicable to electromechanical elementary
(non-specified time all-or-nothing) relays of assessed quality for industrial application.
NOTE Electromechanical all-or-nothing telecom relays of assessed quality are covered by IEC 61811-50.
It is based on the basic relay standard IEC 61810-1 as well as on the generic specification
IEC 61811-1 and selects from IEC 61810-7 the appropriate test and measurement procedures
to be used in detail specifications derived from this specification. Moreover it contains a basic
test schedule to be used in the preparation of such specifications. Detailed test schedules are
given in the blank detail specifications supplementary to this sectional specification.
For the purpose of this standard, only fundamental tests have been compiled. Depending on
the field of application, further tests should be selected as appropriate, preferably in
accordance with the test and measurement procedures of IEC 61810-7.
1.2 Normative references
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.
IEC 60062:1992, Marking codes for resistors and capacitors
IEC 60255-23:1994, Electrical relays – Part 23: Contact performance
IEC 60410:1973, Sampling plans and procedures for inspection by attributes
IEC 61709:1996, Electronic components – Reliability – Reference conditions for failure rates
and stress models for conversion
IEC 61810-1:1998, Electromechanical non-specified time all-or-nothing relays – Part 1:
General requirements
IEC 61810-5:1998, Electromechanical non-specified time all-or-nothing relays – Part 5:
Insulation coordination
IEC 61810-7:1997, Electromechanical all-or-nothing relays – Part 7: Test and measurement
procedures
IEC 61811-1:1999, Electromechanical non-specified time all-or-nothing relays of assessed
quality – Part 1: Generic specification
IEC QC 001002-3, IEC Quality Assessment System for Electronic Components (IECQ) –
Rules of Procedure – Part 3: Approval procedures

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– 6 – 61811-10 © IEC:2002(E)
1.3 Marking
Relays and their package supplied in accordance with detail specifications covered by this
sectional specification, shall as a minimum be marked as follows:
1.3.1 Relay
• Trade mark or manufacturer’s name
• Relay type and variant code
• Date of manufacture, year/week, coded in accordance with IEC 60062
• IECQ mark
Where space permits, a circuit diagram or terminal identification should be given.
1.3.2 Package
• Trade mark or manufacturer’s name
• Detail specification reference if not marked on the relay
• Quantity
• Relay type and variant code
• Manufacturer’s batch identification code
1.4 Ordering information
The ordering information shall be coded and shall contain the following details:
• IECQ detail specification number
• Coded coil voltage
• Terminal code
• Coded mounting arrangement
• Specials code
2 Quality assessment procedures
2.1 Primary stage of manufacture
The primary stage of manufacture is the first process subsequent to the manufacture of
finished parts and subassemblies of the relay.
NOTE 1 A subassembly is understood to mean here the permanent assembly of two or more piece parts.
NOTE 2 Important manufacturing steps are as follows:
a) fabrication, heat treatment and plating of the component parts of the relay;
b) coil winding;
c) assembling of the electrical and electromechanical parts;
d) adjustment of the relay contacts, if applicable;
e) high-temperature drying, gas backfilling and sealing of the relay, if applicable;
f) final measurements and periodic inspection of test groups A to D.
2.2 Structurally similar relays
Relays are considered structurally similar if having no differences in design other than in:
a) coil wire diameter, number of windings and the coil transient suppression device;
b) types, numbers and material of contacts;
c) rated coil and/or contact voltage(s);
d) mounting and terminal variants within the limits prescribed in the detail specification.

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61811-10 © IEC:2002(E) – 7 –
2.3 Subcontracting
Subcontracting the primary stage of manufacture (see 2.1) and/or subsequent stages to an
unapproved manufacturer is forbidden. Subcontracting is permitted for any stages preceding
the primary stage of manufacture and shall be in accordance with the requirements of
(normative) Annex B to Clause 2 of IEC QC 001002-3.
2.4 Qualification approval procedures
The manufacturer shall comply with the general requirements of the basic rules governing
qualification approval defined in Clause 3 of IEC QC 001002-3 and the provisions given in 2.2
of IEC 61811-1.
The requirements contained in 4.2 of IEC 61810-1 shall be met.
Qualification approval tests shall include all the tests prescribed in the detail specification,
and shall be performed by a schedule specifically prescribed in the detail specification.
Sampling shall be carried out in accordance with the sampling plans and procedures specified
in IEC 60410. The number of specimens for each subgroup is specified in the blank detail
specification. As a general rule, a minimum of five specimens are required for each group of tests.
The qualification tests schedule may specify destructive and cumulative non-destructive tests.
2.5 Quality conformance inspection requirements
2.5.1 General requirements
Quality conformance inspection shall be carried out in accordance with the requirements of
Clause 3 of IEC QC 001002-3 and 2.3 of IEC 61811-1.
2.5.2 Formation of inspection lots
Inspection lots to be submitted to group A and B acceptance tests shall be formed in
accordance with 3.2.3 and 3.3.1 of IEC QC 001002-3 and with the sampling plans and
procedures given in IEC 60410, except where production is too infrequent or too small for
sampling plans to apply; in these cases inspection shall be 100 %.
When sampling is carried out in accordance with IEC 60410, the percent defective concept
only shall be used. Stratified or representative sampling shall always be used to include all
production lines and structurally similar relays in proportion to their respective quantities in
the lot. Exceptions from proportionality may become necessary and shall be stated in the
detail specification or agreed between the manufacturer and the National Supervising
Inspectorate (NSI). Specimens shall be as representative as possible of the production.
2.5.3 Periodic inspection
Fixed samples for group C and D inspection shall be taken from a lot (or lots) which has
passed group A and B inspection during, or at the end, of the specified reference period. In
both cases the inspection lot (or lots) shall not be less than the average of production lots
during the reference period for each group.
2.6 Test schedule
2.6.1 Test sequence
A test sequence shall consist of all tests listed in the (blank) detail specification.
The reference numbers of the tests are those of IEC 61810-7, with the exception of additional
test(s) described in the sectional, the blank detail or the detail specification.

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– 8 – 61811-10 © IEC:2002(E)
2.6.2 Groups A and B
The IL (inspection level) notation applies for all tests in one subgroup. A corresponding range
of values for AQL (acceptable quality level) shall be given in the blank detail specification,
and the authority preparing detail specifications shall choose the appropriate value which then
applies to all tests in one subgroup.
2.6.3 Groups C and D
The blank detail specification shall prescribe for each subgroup:
a) Periodicity of this subgroup. If the same periodicity is applicable to all subgroups, it shall
be given at the beginning of the group test details.
b) The minimum sample size for each test (or group of tests) performed with the same
relays, the number of test specimens and the permitted number of defectives shall be
specified.
2.7 Order of tests
Quality conformance inspection is divided into two parts: that carried out lot-by-lot, on which
the release of the individual lots is based, and that carried out on a periodic basis which
contains the time-consuming and more expensive tests.
Following 2.3 of IEC 61811-1, groups A and B contain lot-by-lot tests, while periodic tests
required
...

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