SIST EN 60947-6-1:2006

Low-voltage switchgear and controlgear -- Part 6-1: Multiple function equipment - Transfer switching equipment

This part of IEC 60947applies to transfer switching equipment (TSE) to be used in power systems with interruption of the supply to the load during transfer, the rated voltage of which does not exceed 1 000 V a.c. or 1 500 V d.c. It covers: - manually operated transfer switching equipment (MTSE); - remote operated transfer switching equipment (RTSE); - automatic transfer switching equipment (ATSE). It covers TSE provided with or without an enclosure. Devices necessary for the control (e.g. control switches, etc.) and the protection (e.g. circuit-breakers, etc.) of a TSE are covered by the relevant IEC standards. The object of this part of IEC 60947 is to state: 1) The characteristics of the equipment: a) specific equipment; b) equipment the main part of which being devices covered by other IEC 60947 product standards. 2) The conditions of the equipment with respect to: a) operation for which the equipment is intended; b) operation and behaviour in case of specified abnormal conditions, for example, short-circuit; c) dielectric properties. 3) The tests intended to confirm that these conditions have been met and the methods for performing these tests. 4) The data to be marked on the equipment and provided by the manufacturer.

Niederspannungsschaltgeräte -- Teil 6-1: Mehrfunktionsschaltgeräte - Netzumschalter

Appareillage à basse tension -- Partie 6-1: Matériels à fonctions multiples - Matériels de connexion de transfert

La présente partie de la EN 60947 est applicable aux matériels de connexion de transfert (TSE) destinés à être utilisés dans des systèmes de puissance, avec interruption de l'alimentation de la charge pendant le transfert, dont la tension assignée ne dépasse pas 1 000 V en courant alternatif ou 1 500 V en courant continu.

Nizkonapetostne stikalne naprave – 6-1. del: Večfunkcijska oprema – Oprema za samodejno predajanje stikanja (IEC 60947-6-1:2005)

Ta del standarda IEC 60947 velja za opremo za samodejno predajanje stikanja (TSE), ki je namenjena uporabi v napajalnih sistemih s prekinitvijo napajanja zaradi obremenitve med prenosom, katerih nazivna napetost ne presega 1000 V izmenične napetosti ali 1500 V enosmerne napetosti. Zajema: - ročno upravljano opremo za samodejno predajanje stikanja (MTSE); - daljinsko upravljano opremo za samodejno predajanje stikanja (RTSE); - avtomatsko opremo za samodejno predajanje stikanja (ATSE). Zajema samodejno opremo za predajanje stikanja z ohišjem ali brez. Naprave, ki so potrebne za krmiljenje (npr. krmilna stikala, itd.) in zaščito (npr. odklopniki, itd.) opreme za samodejno predajanje stikanja zajemajo ustrezni standardi IEC. Namen tega dela standarda IEC 60947 je, da navede: 1) Značilnosti opreme: a) določene vrste opreme; b) opreme, katere glavni del so naprave, ki jih zajemajo drugi standardi za proizvode IEC 60947. 2) Pogoje opreme glede na: a) dejavnost, za katero je oprema namenjena; b) delovanje in vedenje v primeru navedenih izrednih razmer, na primer kratkega stika; c) dielektrične lastnosti. 3) Preskuse, katerih cilj je potrditi, da oprema izpolnjuje te pogoje, in metode izvajanja teh preskusov. 4) Podatke, ki morajo biti navedeni na opremi in ki jih mora zagotoviti proizvajalec.

General Information

• Status: Published
• Publication Date: 31-Dec-2005
• ICS: 29.130.20 - Low voltage switchgear and controlgear
• Technical Committee: SKA - Switchgear and control gear
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 01-Jan-2006
• Due Date: 01-Jan-2006
• Completion Date: 01-Jan-2006
• Directive: 2004/108/EU - DIRECTIVE 2004/108/EC OF THE EUROPEAN PARLIAMENT AND OF THE COUNCIL of 15 December 2004 on the approximation of the laws of the Member States relating to electromagnetic compatibility and repealing Directive 89/336/EEC
• Directive: 2006/95/EC - Directive 2006/95/EC of the European Parliament and of the Council of 12 December 2006 on the harmonisation of the laws of Member States relating to electrical equipment designed for use within certain voltage limits (codified version)
• Directive: 2014/30/EU - Directive 2014/30/EU of the European Parliament and of the Council of 26 February 2014 on the harmonisation of the laws of the Member States relating to electromagnetic compatibility (recast)
• Directive: 2014/35/EU - Directive 2014/35/EU of the European Parliament and of the Council of 26 February 2014 on the harmonisation of the laws of the Member States relating to the making available on the market of electrical equipment designed for use within certain voltage limits
• Directive: 73/23/EEC - Electrical equipment designed for use within certain voltage limits
• Directive: 89/336/EEC - Electromagnetic compatibility (EMC)
• Ref Project: EN 60947-6-1:2005 - Low-voltage switchgear and controlgear - Part 6-1: Multiple function equipment - Transfer switching equipment

Relations

• Amended By: SIST EN 60947-6-1:2006/A1:2014 - Low-voltage switchgear and controlgear - Part 6-1: Multiple function equipment - Transfer switching equipment
• Effective Date: 28-Jan-2023
• Replaces: SIST EN 60947-6-1:1995 - Low-voltage switchgear and controlgear -- Part 6-1: Multiple function equipment - Automatic transfer switching equipment
• Effective Date: 01-Jan-2006
• Replaces: SIST EN 60947-6-1:1995/A11:1998 - Low-voltage switchgear and controlgear -- Part 6-1: Multiple function equipment - Automatic transfer switching equipment
• Effective Date: 01-Jan-2006
• Replaces: SIST EN 60947-6-1:1995/A2:1999 - Low-voltage switchgear and controlgear -- Part 6-1: Multiple function equipment - Automatic transfer switching equipment
• Effective Date: 29-Jan-2023
• Replaces: SIST EN 60947-6-1:1995 - Low-voltage switchgear and controlgear -- Part 6-1: Multiple function equipment - Automatic transfer switching equipment
• Effective Date: 28-Jan-2023
• Replaces: SIST EN 60947-6-1:1995/A2:1999 - Low-voltage switchgear and controlgear -- Part 6-1: Multiple function equipment - Automatic transfer switching equipment
• Effective Date: 07-Jun-2022

Standards Content (Sample)

SLOVENSKI SIST EN 60947-6-1:2006

STANDARD
januar 2006
1L]NRQDSHWRVWQHVWLNDOQHQDSUDYH±GHO9HþIXQNFLMVNDRSUHPD±2SUHPD
za samodejno predajanje stikanja (IEC 60947-6-1:2005)
(istoveten EN 60947-6-1:2005)
Low-voltage switchgear and controlgear – Part 6-1: Multiple function equipment –
Transfer switching equipment (IEC 60947-6-1:2005)
ICS 5HIHUHQþQDãWHYLOND
29.130.20
SIST EN 60947-6-1:2006(en)
! "#$%!&!%’()*#+’

---------------------- Page: 1 ----------------------

EUROPEAN STANDARD EN 60947-6-1
NORME EUROPÉENNE
EUROPÄISCHE NORM November 2005

ICS 29.130.20 Supersedes EN 60947-6-1:1991 + A1:1994 + A2:1997


English version


Low-voltage switchgear and controlgear
Part 6-1: Multiple function equipment –
Transfer switching equipment
(IEC 60947-6-1:2005)


Appareillage à basse tension Niederspannungsschaltgeräte
Partie 6-1: Matériels à fonctions multiples - Teil 6-1: Mehrfunktionsschaltgeräte -
Matériels de connexion de transfert Netzumschalter
(CEI 60947-6-1:2005) (IEC 60947-6-1:2005)


This European Standard was approved by CENELEC on 2005-10-01. 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 60947-6-1:2005 E

---------------------- Page: 2 ----------------------

EN 60947-6-1:2005 - 2 -
Foreword
The text of document 17B/1418/FDIS, future edition 2 of IEC 60947-6-1, prepared by SC 17B, Low-
voltage switchgear and controlgear, of IEC TC 17, Switchgear and controlgear, was submitted to the
IEC-CENELEC parallel vote and was approved by CENELEC as EN 60947-6-1 on 2005-10-01.
This European Standard supersedes EN 60947-6-1:1991 + A1:1994 + A2:1997.
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) 2006-07-01
– latest date by which the national standards conflicting
with the EN have to be withdrawn (dow) 2008-10-01
This part of EN 60947 shall be used in conjunction with EN 60947-1:2004 (IEC 60947-1:2004),
General rules.
The provisions of the general rules dealt with in IEC 60947-1 are applicable to this part of EN 60947,
where specifically called for. Clauses and subclauses, tables, figures and annexes of the general rules
thus applicable are identified by reference to IEC 60947-1 (e.g. 1.2.3 of IEC 60947-1, Table 4 of
IEC 60947-1 or Annex A of IEC 60947-1, etc.).
This European Standard has been prepared under a mandate given to CENELEC by the European
Commission and the European Free Trade Association and covers essential requirements of
EC Directive 89/336/EEC. See Annex ZZ.
Annexes ZA and ZZ have been added by CENELEC.
__________
Endorsement notice
The text of the International Standard IEC 60947-6-1:2005 was approved by CENELEC as a
European Standard without any modification.
__________

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- 3 - EN 60947-6-1:2005
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 60695-11-10 1999 Fire hazard testing EN 60695-11-10 1999
Part 11-10: Test flames - 50 W horizontal
and vertical flame test methods
A1 2003 A1 2003

IEC 60947-1 2004 Low-voltage switchgear and controlgear EN 60947-1 2004
Part 1: General rules + corr. November 2004

IEC 60947-2 2003 Part 2: Circuit-breakers EN 60947-2 2003

IEC 60947-3 1999 Part 3: Switches, disconnectors, switch- EN 60947-3 1999
disconnectors and fuse-combination units
A1 2001 A1 2001

IEC 60947-4-1 2000 Part 4-1: Contactors and motor-starters - EN 60947-4-1 2001
Electromechanical contactors and motor-
starters
A1 2002 A1 2002

IEC 60947-4-2 1999 Part 4-2: Contactors and motor-starters - EN 60947-4-2 2000
AC semiconductor motor controllers and
starters
A1 2001 A1 2002

IEC 60947-4-3 1999 Part 4-3: Contactors and motor-starters - EN 60947-4-3 2000
AC semiconductor controllers and
contactors for non-motor loads

IEC 60947-6-2 2002 Part 6-2: Multiple function equipment - EN 60947-6-2 2003
Control and protective switching devices
(or equipment) (CPS)

IEC 61000-4-2 1995 Electromagnetic compatibility (EMC) EN 61000-4-2 1995
Part 4-2: Testing and measurement
techniques - Electrostatic discharge
immunity test
A1 1998 A1 1998
A2 2000 A2 2001

IEC 61000-4-3 2002 Part 4-3: Testing and measurement EN 61000-4-3 2002
techniques - Radiated, radio-frequency,
electromagnetic field immunity test
A1 2002 A1 2002

---------------------- Page: 4 ----------------------

EN 60947-6-1:2005 - 4 -
Publication Year Title EN/HD Year
IEC 61000-4-4 1995 Part 4-4: Testing and measurement EN 61000-4-4 1995
techniques - Electrical fast transient/burst
immunity test
A1 2000 A1 2001
A2 2001 A2 2001

IEC 61000-4-5 1995 Part 4-5: Testing and measurement EN 61000-4-5 1995
techniques - Surge immunity test
A1 2000 A1 2001

IEC 61000-4-6 2003 Part 4-6: Testing and measurement - -
techniques - Immunity to conducted
disturbances, induced by radio-frequency
fields
A1 2004 - -

CISPR 11 2003 Industrial scientific and medical (ISM) - -
radio-frequency equipment -
Electromagnetic disturbance
characteristics - Limits and methods of
measurement
A1 2004 - -

---------------------- Page: 5 ----------------------

- 5 - EN 60947-6-1:2005
Annex ZZ
(informative)

Coverage of Essential Requirements of EC Directives
This European Standard has been prepared under a mandate given to CENELEC by the European
Commission and the European Free Trade Association and within its scope the standard covers all
relevant essential requirements as given in Article 4 of the EC Directive 89/336/EEC.
Compliance with this standard provides one means of conformity with the specified essential
requirements of the Directive concerned.
WARNING: Other requirements and other EC Directives may be applicable to the products falling
within the scope of this standard.
___________

---------------------- Page: 6 ----------------------

NORME CEI
INTERNATIONALE
IEC



60947-6-1
INTERNATIONAL


Deuxième édition
STANDARD

Second edition

2005-08


Appareillage à basse tension–
Partie 6-1:
Matériels à fonctions multiples –
Matériels de connexion de transfert

Low-voltage switchgear and controlgear –
Part 6-1:
Multiple function equipment –
Transfer switching equipment

 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.
International Electrotechnical Commission, 3, rue de Varembé, PO Box 131, CH-1211 Geneva 20, Switzerland
Telephone: [phone] Telefax: [phone] E-mail: [e-mail] Web: www.iec.ch
CODE PRIX
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International Electrotechnical Commission
МеждународнаяЭлектротехническаяКомиссия
Pour prix, voir catalogue en vigueur
For price, see current catalogue

---------------------- Page: 7 ----------------------

60947-6-1  IEC:2005 – 3 –
CONTENTS
FOREWORD.7

1 Scope and object.13
2 Normative references .15
3 Terms and definitions, symbols and abbreviations .17
3.1 Switching devices.17
3.2 Operation of TSE.19
3.3 Main contact positions.21
3.4 Symbols and abbreviations.21
4 Classification.23
5 Characteristics .23
5.1 Summary of characteristics .23
5.2 Type of equipment.23
5.3 Rated and limiting values for the main circuit.23
5.4 Utilization category.29
5.5 Control circuits .29
5.6 Auxiliary circuits .31
6 Product information .31
6.1 Nature of information.31
6.2 Marking .33
6.3 Instructions for installation, operation and maintenance .33
7 Normal service, mounting and transport conditions.33
8 Constructional and performance requirements.33
8.1 Constructional requirements.33
8.2 Performance requirements .33
8.3 Electromagnetic compatibility (EMC) .43
9 Tests .45
9.1 Kinds of tests .45
9.2 Compliance with constructional requirements .45
9.3 Performance.47
9.4 Routine tests .71
9.5 EMC tests .71


Annex A (normative) – Assignment of utilization categories based on the results of tests .81
Annex B (informative) – Items subject to agreement between manufacturer and user .85

Figure 1 – Test circuit for connection to normal and alternative supplies.77
Figure 2 – Test circuit for the verification of making and breaking capacities on three poles .79
Figure 3 – Test circuit for the verification of making and breaking capacities on two poles .79

---------------------- Page: 8 ----------------------

60947-6-1  IEC:2005 – 5 –
Table 1 – Utilization categories .29
Table 2 – Verification of making and breaking capacity – Conditions for making and
breaking corresponding to the utilization categories.37
Table 3 – Verification of operational performance – Conditions for making and breaking
corresponding to the utilization categories .39
Table 4 – Value of the test current for the verification of the ability to operate under
short-circuit conditions.41
Table 5 – Acceptance criteria.45
Table 6 – List of type tests (overall scheme of test sequences).49
Table 7 – List of type tests (referred to by their subclause numbers) to which a given
derived TSE shall be submitted.51
Table 8 – Number and duration of operating cycles for the making and breaking
capacity test .59
Table 9 – Number and duration of operating cycles for the electrical and mechanical
operational performance tests for operation A utilization categories.63
Table 10 – Number and duration of operating cycles for the electrical and mechanical
operational performance tests for operation B utilization categories.63
Table A.1 – Equivalence between utilization categories used in some IEC 60947
product standards .83

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60947-6-1  IEC:2005 – 7 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
___________

LOW-VOLTAGE SWITCHGEAR AND CONTROLGEAR –

Part 6-1: Multiple function equipment –
Transfer switching equipment


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
misinterpretation by any end user.
4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
transparently to the maximum extent possible in their national and regional publications. Any divergence
between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in
the latter.
5) IEC provides no marking procedure to indicate its approval and cannot be rendered responsible for any
equipment declared to be in conformity with an IEC Publication.
6) All users should ensure that they have the latest edition of this publication.
7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and
members of its technical committees and IEC National Committees for any personal injury, property damage or
other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and
expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC
Publications.
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 60947-6-1 has been prepared by subcommittee 17B: Low-voltage
switchgear and controlgear, of IEC technical committee 17: Switchgear and controlgear.
This second edition cancels and replaces the first edition published in 1989, amendment 1
(1994), and amendment 2 (1997). This edition incorporates Amendment 3 which was not
published separately.
The text of this standard is based on first edition, amendment 1, amendment 2 and the
following documents:
FDIS Report on voting
17B/1418/FDIS 17B/1424/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.

---------------------- Page: 10 ----------------------

60947-6-1  IEC:2005 – 9 –
This part of IEC 60947shall be used in conjunction with IEC 60947-1: General rules.
The provisions of the general rules dealt with in IEC 60947-1 are applicable to this part of
IEC 60947, where specifically called for. Clauses and subclauses, tables, figures and
annexes of the general rules thus applicable are identified by reference to IEC 60947-1 (e.g.
1.2.3 of IEC 60947-1, Table 4 of IEC 60947-1 or Annex A of IEC 60947-1, etc.).
This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.
IEC 60947 consists of the following parts, under the general title Low-voltage switchgear and
controlgear:
Part 1: General rules
Part 2: Circuit-breakers
Part 3: Switches, disconnectors, switch-disconnectors and fuse-combination units
Part 4-1: Contactors and motor-starters – Electromechanical contactors and motor-starters
Part 4-2: Contactors and motor-starters – AC semiconductor motor controllers and starters
Part 4-3: Contactors and motor-starters – AC semiconductor controllers and contactors for
non-motor loads
Part 5-1: Control circuit devices and switching elements – Electromechanical control circuit
devices
Part 5-2: Control circuit devices and switching elements – Proximity switches
Part 5-3: Control circuit devices and switching elements – Requirements for proximity
devices with defined behaviour under fault conditions (PDF)
Part 5-4: Control circuit devices and switching elements – Method of assessing the
performance of low-energy contacts – Special tests
Part 5-5: Control circuit devices and switching elements – Electrical emergency stop device
with mechanical latching function
Part 5-6: Control circuit devices and switching elements – DC interface for proximity
sensors and switching amplifiers (NAMUR)
Part 5-7: Control circuit devices and switching elements – Requirements for proximity
devices with analogue output
1
Part 5-8: Control circuit devices and switching elements – Three-position enabling switches
1
Part 5-9: Control circuit devices and switching elements – Flow rate switches
Part 6-1: Multiple function equipment – Automatic transfer switching equipment
Part 6-2: Multiple function equipment – Control and protective switching devices (or
equipment) (CPS)
—————————
1
Under consideration.

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60947-6-1  IEC:2005 – 11 –
Part 7-1: Ancillary equipment – Terminal blocks for copper conductors
Part 7-2: Ancillary equipment – Protective conductor terminal blocks for copper conductors
Part 7-3: Ancillary equipment – Safety requirements for fuse terminal blocks
Part 7-3: Ancillary equipment – Safety requirements for fuse terminal blocks
Part 8: Control units for built-in thermal protection (PTC) for rotating electrical machines

The committee has decided that the contents of this publication will remain unchanged until
the maintenance result 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, or
• amended.

---------------------- Page: 12 ----------------------

60947-6-1  IEC:2005 – 13 –
LOW-VOLTAGE SWITCHGEAR AND CONTROLGEAR –

Part 6-1: Multiple function equipment –
Transfer switching equipment



1 Scope and object
This part of IEC 60947applies to transfer switching equipment (TSE) to be used in power
systems with interruption of the supply to the load during transfer, the rated voltage of which
does not exceed 1 000 V a.c. or 1 500 V d.c.
It covers:
– manually operated transfer switching equipment (MTSE);
– remote operated transfer switching equipment (RTSE);
– automatic transfer switching equipment (ATSE).
It covers TSE provided with or without an enclosure.
Devices necessary for the control (e.g. control switches, etc.) and the protection (e.g. circuit-
breakers, etc.) of a TSE are covered by the relevant IEC standards.
NOTE TSE used only for emergency lighting may be subject to specific rules and/or legal requirements and are
not, therefore, covered by this standard.
The object of this part of IEC 60947 is to state:
1) The characteristics of the equipment:
a) specific equipment;
b) equipment the main part of which being devices covered by other IEC 60947 product
standards.
2) The conditions of the equipment with respect to:
a) operation for which the equipment is intended;
b) operation and behaviour in case of specified abnormal conditions, for example, short-
circuit;
c) dielectric properties.
3) The tests intended to confirm that these conditions have been met and the methods for
performing these tests.
4) The data to be marked on the equipment and provided by the manufacturer.

---------------------- Page: 13 ----------------------

60947-6-1  IEC:2005 – 15 –
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 60695-11-10:1999, Fire hazard testing – Part 11-10: Test flames – 50 W horizontal and
vertical flame test methods
Amendment 1 (2003)
IEC 60947-1:2004, Low-voltage switchgear and controlgear – Part 1: General rules
IEC 60947-2:2003, Low-voltage switchgear and controlgear – Part 2: Circuit-breakers
IEC 60947-3:1999, Low-voltage switchgear and controlgear – Part 3: Switches, disconnectors,
switch-disconnectors and fuse-combination units
Amendment 1 (2001)
IEC 60947-4-1:2000, Low-voltage switchgear and controlgear – Part 4-1: Contactors and
motor-starters – Electromechanical contactors and motor-starters
Amendment 1 (2002)
IEC 60947-4-2:1999, Low-voltage switchgear and controlgear – Part 4-2: Contactors and
motor-starters – AC semiconductor motor controllers and starters
Amendment 1 (2001)
IEC 60947-4-3:1999, Low-voltage switchgear and controlgear – Part 4-3: Contactors and
motor-starters – AC semiconductor controllers and contactors for non-motor loads
IEC 60947-6-2:2002, Low-voltage switchgear and controlgear – Part 6-2: Multiple function
equipment – Control and protective switching devices (or equipment) (CPS)
IEC 61000-4-2:1995, Electromagnetic compatibility (EMC) – Part 4-2: Testing and
measurement techniques – Electrostatic discharge immunity test
Amendment 1 (1998)
Amendment 2 (2000)
IEC 61000-4-3:2002, Electromagnetic compatibility (EMC) – Part 4-3: Testing and
measurement techniques – Radiated, radio-frequency, electromagnetic field immunity test
Amendment 1 (2002)
IEC 61000-4-4:1995, Electromagnetic compatibility (EMC) – Part 4-4: Testing and
measurement techniques – Electrical fast transient/burst immunity test
Amendment 1 (2000)
Amendment 2 (2001)
IEC 61000-4-5:1995, Electromagnetic compatibility (EMC) – Part 4-5: Testing and
measurement techniques – Surge immunity test
Amendment 1 (2000)
IEC 61000-4-6:2003, Electromagnetic compatibility (EMC) – Part 4-6: Testing and
measurement techniques – Immunity to conducted disturbances, induced by radio-frequency
fields
Amendment 1 (2004)

---------------------- Page: 14 ----------------------

60947-6-1  IEC:2005 – 17 –
CISPR 11:2003, Industrial, scientific and medical (ISM) radio-frequency equipment –
Electromagnetic disturbance characteristics – Limits and methods of measurement
Amendment 1 (2004)
3 Terms and definitions, symbols and abbreviations
For the purpose of this part of IEC 60947 the relevant terms and definitions given in Clause 2
of IEC 60947-1 and the following additional definitions shall apply:
Reference
A
Alternative position . 3.3.2
Automatic transfer switching equipment (ATSE). 3.1.4

C
Contact transfer time . 3.2.5

D
Derived transfer switching equipment (derived TSE) . 3.1.5

F
Frequency supply deviation . 3.2.4

M
Manually operated transfer switching equipment (MTSE). 3.1.2
Monitored supply deviation of ATSE . 3.2.2

N
Normal position. 3.3.1

O
Off position . 3.3.3
Off-time. 3.2.9
Operating sequence of ATSE. 3.2.1
Operating transfer time . 3.2.6

R
Remotely operated transfer switching equipment (RTSE). 3.1.3
Return transfer time. 3.2.8

T
Total operating time. 3.2.7
Transfer switching equipment (TSE). 3.1.1

V
Voltage supply deviation . 3.2.3

3.1 Switching devices
3.1.1
transfer switching equipment
TSE
equipment containing one or more switching devices for disconnecting load circuits from one
supply and connecting to another supply
3.1.2
manually operated transfer switching equipment
MTSE
transfer switching equipment operated manually

---------------------- Page: 15 ----------------------

60947-6-1  IEC:2005 – 19
...

SLOVENSKI SIST EN 60947-6-
1:1995/OprA3:2004

PREDSTANDARD
junij 2004
Low-voltage switchgear and controlgear -- Part 6-1: Multiple function equipment -
Automatic transfer switching equipment
ICS 29.130.20 Referenčna številka
SIST EN 60947-6-
1:1995/OprA3:2004(en)
©  Standard je založil in izdal Slovenski inštitut za standardizacijo. Razmnoževanje ali kopiranje celote ali delov tega dokumenta ni dovoljeno

---------------------- Page: 1 ----------------------
17B/1348/CDV
COMMITTEE DRAFT FOR VOTE (CDV)
PROJET DE COMITÉ POUR VOTE (CDV)

Project number IEC 60947-6-1, A3, Ed.1.0
Numéro de projet
IEC/TC or SC: Date of circulation Closing date for voting (Voting
SC 17B
Date de diffusion mandatory for P-members)
CEI/CE ou SC:

Date de clôture du vote (Vote
2004-04-23
obligatoire pour les membres (P))
2004-09-24
Titre du CE/SC: Appareillage à basse tension TC/SC Title: Low-voltage switchgear and
controlgear
Secretary: Mr. Marcel DELAPLACE (France)
Secrétaire: E-mail: [e-mail]
Also of interest to the following committees Supersedes documents
Intéresse également les comités suivants Remplace les documents
   17B/1289/CD and 17B/1300A/CC
Functions concerned
Fonctions concernées
Safety EMC Environment Quality assurance

Sécurité CEM Environnement Assurance qualité
CE DOCUMENT EST TOUJOURS À L'ÉTUDE ET SUSCEPTIBLE DE THIS DOCUMENT IS STILL UNDER STUDY AND SUBJECT TO CHANGE. IT
MODIFICATION. IL NE PEUT SERVIR DE RÉFÉRENCE. SHOULD NOT BE USED FOR REFERENCE PURPOSES.
LES RÉCIPIENDAIRES DU PRÉSENT DOCUMENT SONT INVITÉS À RECIPIENTS OF THIS DOCUMENT ARE INVITED TO SUBMIT, WITH THEIR
PRÉSENTER, AVEC LEURS OBSERVATIONS, LA NOTIFICATION DES COMMENTS, NOTIFICATION OF ANY RELEVANT PATENT RIGHTS OF
DROITS DE PROPRIÉTÉ DONT ILS AURAIENT ÉVENTUELLEMENT WHICH THEY ARE AWARE AND TO PROVIDE SUPPORTING
CONNAISSANCE ET À FOURNIR UNE DOCUMENTATION EXPLICATIVE. DOCUMENTATION.



Titre : Amendement 3 à la CEI 60947-6-1, Ed.1: Title : Amendment 3 to IEC 60947-6-1, Ed.1:
Appareillage à basse tension - Partie 6-1: Low-voltage switchgear and controlgear -
Matériels à fonctions multiples - Matériels de Part 6-1: Multiple function equipment -
connexion de transfert automatique Automatic transfer switching equipment



Note d'introduction Introductory note





ATTENTION ATTENTION

CDV soumis en parallèle au vote (CEI) Parallel IEC CDV/CENELEC Enquiry
et à l’enquête (CENELEC)


Copyright © 2004 International Electrotechnical Commission, IEC. All rights reserved. It is
permitted to download this electronic file, to make a copy and to print out the content for the sole
purpose of preparing National Committee positions. You may not copy or "mirror" the file or
printed version of the document, or any part of it, for any other purpose without permission in
writing from IEC.
FORM CDV (IEC)
2002-08-09

---------------------- Page: 2 ----------------------
60947-6-1 Amend. 3/CDV  IEC:200X – 2 –
FOREWORD
This amendment has been prepared by subcommittee 17B: Low-voltage switchgear and
controlgear, of IEC technical committee 17: Switchgear and controlgear.
The text of this amendment is based on the following documents:
FDIS Report on voting
17B/XXXX/FDIS 17B/XXXX/RVD

Full information on the voting for the approval of this amendment can be found in the report
on voting indicated in the above table.
The committee has decided that the contents of this publication will remain unchanged until
2008. At this date, the publication will be
• reconfirmed;
• withdrawn;
• replaced by a revised edition, or
• amended.
_________________
Title
Change the title to read:
Low-voltage switchgear and controlgear – Part 6-1: Multiple function equipment – Transfer
switching equipment

Change, in the whole document, except where it is explicitly specified, “ATSE” into
“TSE”.

Page 3 and amendment 2, page 3
CONTENTS
⇒ Note to National Committees (for information, not part of the amendment): The contents
will be updated in the FDIS.

Page 7
PREFACE
Delete the list of IEC publications.

---------------------- Page: 3 ----------------------
60947-6-1 Amend. 3/CDV  IEC:200X – 3 –
Page 9
1.1 Scope
Replace the first paragraph of this subclause by the following:
This standard applies to transfer switching equipment (TSE) to be used in power systems with
interruption of the supply to the load during transfer, the rated voltage of which does not
exceed 1 000 V a.c. or 1 500 V d.c.
It covers:
– manually operated transfer switching equipment (MTSE);
– remote operated transfer switching equipment (RTSE);
– automatic transfer switching equipment (ATSE).
It covers TSE provided with or without an enclosure.

Replace the last paragraph of this subclause by the following note:
NOTE TSE used only for emergency lighting may be subject to specific rules and/or legal requirements and are
not, therefore, covered by this standard.

1.2 Object
Modify the item 1) to read:
1) The characteristics of the equipment:
a) specific equipment;
b) equipment the main part of which being devices covered by other IEC 60947 product
standards.

Page 9 and amendment 2, page 3
Add, after 1.2, the following new subclause 1.3:
1.3 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 60112:2003, Methods for determining the comparative and the proof tracking indices of
solid insulating materials under moist conditions
IEC 60947-1:2004, Low-voltage switchgear and controlgear – Part 1: General rules
IEC 60947-2:2003, Low-voltage switchgear and controlgear – Part 2: Circuit-breakers

---------------------- Page: 4 ----------------------
60947-6-1 Amend. 3/CDV  IEC:200X – 4 –
IEC 60947-3:1999, Low-voltage switchgear and controlgear – Part 3: Switches, disconnectors,
switch-disconnectors and fuse-combination units
Amendment 1 (2001)
IEC 60947-4-1:2000, Low-voltage switchgear and controlgear – Part 4-1: Contactors and
motor-starters – Electromechanical contactors and motor-starters
Amendment 1 (2002)
IEC 60947-4-2:1999, Low-voltage switchgear and controlgear – Part 4-2: Contactors and
motor-starters – AC semiconductor motor controllers and starters
Amendment 1 (2001)
IEC 60947-4-3:1999, Low-voltage switchgear and controlgear – Part 4-3: Contactors and
motor-starters – AC semiconductor controllers and contactors for non-motor loads
IEC 60947-6-2:2002, Low-voltage switchgear and controlgear – Part 6-2: Multiple function
equipment – Control and protective switching devices (or equipment) (CPS)
IEC 61000-4-2:1995, Electromagnetic compatibility (EMC) – Part 4-2: Testing and
measurement techniques – Electrostatic discharge immunity test
Amendment 1 (1998)
Amendment 2 (2000)
IEC 61000-4-3:2002, Electromagnetic compatibility (EMC) – Part 4-3: Testing and
measurement techniques – Radiated radio-frequency electromagnetic field immunity test
Amendment 1 (2002)
IEC 61000-4-4:1995, Electromagnetic compatibility (EMC) – Part 4-4: Testing and
measurement techniques – Electrical fast transient/burst immunity test
Amendment 1 (2000)
Amendment 2 (2001)
IEC 61000-4-5:1995, Electromagnetic compatibility (EMC) – Part 4-5: Testing and
measurement techniques – Surge immunity test
Amendment 1 (2000)
IEC 61000-4-6:2003, Electromagnetic compatibility (EMC) – Part 4-6: Testing and
measurement techniques – Immunity to conducted disturbances, induced by radio-frequency
fields
CISPR 11:2003, Industrial, scientific and medical (ISM) radio-frequency equipment –
Electromagnetic disturbance characteristics – Limits and methods of measurement

Page 9
2 Definitions
Replace the existing title by the following:
2 Definitions, symbols and abbreviations

---------------------- Page: 5 ----------------------
60947-6-1 Amend. 3/CDV  IEC:200X – 5 –
Insert, after the first paragraph the following alphabetical index of definitions:
Reference
A
Alternative position . 2.3.2
Automatic transfer switching equipment (ATSE). 2.1.4

C
Contact transfer time . 2.2.3.1

D
Derived TSE . 2.1.5

F
Frequency supply deviation . 2.2.2.2

M
Manually operated transfer switching equipment (MTSE) . 2.1.2
Monitored supply deviation of ATSE . 2.2.2

N
Normal position. 2.3.1

O
Off position . 2.3.3
Off-time. 2.2.3.5
Operating sequence of ATSE. 2.2.1
Operating transfer time . 2.2.3.2

R
Remotely operated transfer switching equipment (RTSE). 2.1.3
Return transfer time . 2.2.3.4

T
Total operating time . 2.2.3.3
Transfer switching equipment (TSE) . 2.1.1

V
Voltage supply deviation . 2.2.2.1


Replace, on page 11, definitions 2.1.1 and 2.1.2 by the following new definitions 2.1.1 to 2.1.5:
2.1.1
transfer switching equipment (TSE)
equipment containing one or more switching devices for disconnecting load circuits from one
supply and connecting to another supply
2.1.2
manually operated transfer switching equipment (MTSE)
transfer switching equipment operated manually

---------------------- Page: 6 ----------------------
60947-6-1 Amend. 3/CDV  IEC:200X – 6 –
2.1.3
remotely operated transfer switching equipment (RTSE)
transfer switching equipment operated remotely
NOTE RTSE may have optional feature for local operation.
2.1.4
automatic transfer switching equipment (ATSE)
self-acting transfer switching equipment
NOTE 1 ATSE normally includes all necessary devices for monitoring and transferring operations.
NOTE 2 ATSE may have optional feature for manual operation.
2.1.5
derived TSE
TSE in which the main part are device(s) fulfilling requirements of other IEC 60947 product
standards
NOTE For convenience, derived TSE may be called derived ATSE, derived MTSE or derived RTSE.

Page 11
2.2.1
operating sequence
Change the term “operating sequence” into “operating sequence of ATSE”.
Keep “ATSE” in the definition.
2.2.2
monitored supply deviation
Change the term “monitored supply deviation” into “monitored supply deviation of ATSE”.
Keep “ATSE” in the definition.

2.2.3.5
off-time
Replace the existing definition by the following new definition with the note:
time measured during transfer from the instant of final arc extinction, under the conditions
producing the longest arcing time, in all poles to the closing of main contacts on another
supply
NOTE Any purposely introduced time delay would be included within the off-time.

---------------------- Page: 7 ----------------------
60947-6-1 Amend. 3/CDV  IEC:200X – 7 –
Page 13
Add, after definition 2.3.3, the following new subclause:
2.4 Symbols and abbreviations
EMC Electromagnetic compatibility
 Rated short-circuit making capacity
I
cm
 Rated short-circuit breaking capacity
I
cn
I Rated short-time withstand current
cw
I Rated operational current
e
I Rated uninterrupted current
u
SCPD Short-circuit protective device
U Rated operational voltage
e
U Rated insulation voltage
i
Rated impulse withstand voltage
U
imp
 Power frequency or d.c. recovery voltage
U
r
U Rated control supply voltage
s

3 Classification
Replace the existing text of this clause by the following:
Transfer switching equipment is classified according to:
− their short-circuit capability:
− class PC: TSE that is capable of making and withstanding, but is not intended for
breaking short-circuit currents;
NOTE Contactors can be used in class PC if they fulfil the test requirements of class PC.
− class CB: TSE provided with over-current releases and the main contacts of which are
capable of making and are intended for breaking short-circuit currents;
− class CC: TSE that is capable of making and withstanding, but is not intended for
breaking short-circuit currents. TSE based on devices fulfilling the requirements of
IEC 60947-4-1;
NOTE Additional requirements regarding short-circuit conditions for this class are under consideration.
− the method of controlling the transfer:
− manually operated switching equipment (MTSE);
− remote operated switching equipment (RTSE);
− automatic transfer switching equipment (ATSE).

---------------------- Page: 8 ----------------------
60947-6-1 Amend. 3/CDV  IEC:200X – 8 –
Page 15
4.1 Summary of characteristics
Delete the sixth dashed item: “− Switching overvoltages (subclause 4.9)”.

Add, at the end of this subclause, the following new paragraph:
Where the TSE uses IEC 60947 products, the relevant characteristics from those standards
may also be additionally used.

4.2 Type of equipment
Modify the first dashed item to read:
− class and transfer control method of the equipment (see Clause 3);

Page 19
4.3.6.4 Rated conditional short-circuit current
Modify the first paragraph to read:
“… protected by a specified short-circuit protective device (SCPD), can satisfactorily
withstand …”

Page 21 and amendment 2, page 5
4.4 Utilization category
Replace the second paragraph by the following:
The designation of utilization categories is completed by the suffix A or B, according to the
number of operations (see Tables VII, VIII and IX) required by the application.

Table I – Utilization categories
Replace column headings “Frequent operations” and “Infrequent operations” by “Operation A”
and “Operation B” respectively.

---------------------- Page: 9 ----------------------
60947-6-1 Amend. 3/CDV  IEC:200X – 9 –
Insert, after AC-31A, the following new utilization category AC-32A:
AC-31A … …
AC-32A AC-32B Switching of mixed resistive and inductive
 loads, including moderate overloads
AC-33A … …

Add, after table I, the following new paragraph:
For TSE for which the main parts are covered by other IEC 60947 product standards,
utilization categories defined in these product standards may be used as equivalent as those
defined in Table 1, see Annex A.

Page 23
Delete completely subclauses 4.7 and 4.8.

4.9 Switching overvoltages
Delete completely this subclause.

Page 23 and amendment 2, page 5
5.1 Nature of information
Replace item d) by the following:
d) class of equipment: PC, CB or CC;

Replace, in item h), “Class PC” by “Class PC/CC”

Replace items j) and o) by the following:
j) rated conditional short circuit current and associated SCPD (see 4.3.6.4), where
applicable;
o) rated impulse withstand voltage;

Add, after item r), the following new item s):
s) off-time for derived TSE (see 2.2.3.5).

---------------------- Page: 10 ----------------------
60947-6-1 Amend. 3/CDV  IEC:200X – 10 –
Page 25
7.1 Constructional requirements
Replace the existing text, including the subclause 7.1.3, by the following:
Subclause 7.1 of IEC 60947-1 applies with the following additions.
7.1.1.1 Resistance to abnormal heat and fire
Parts of insulating materials necessary to retain current-carrying parts in position shall
conform to the glow wire test of 8.2.1.1.1 at a test temperature of 850 °C.
When tests on materials are used, the required flammability category of IEC 60695-11-10
shall be given by the manufacturer for each material to be tested.

Page 27
7.2.1.1 Operating mechanism
Replace the existing text of item b) by the following:
b) The operating mechanism shall be interlocked to prevent simultaneous connection to both
normal and alternative supplies under all conditions. Removal of doors or access panels
shall not result in defeating the interlocking mechanism.

Modify, item c), the existing text of the first paragraph to read:
“For Class PC/CC TSE, the operating mechanism …”

Page 29
Table II – Verification of making and breaking capacity – Conditions for making and
breaking corresponding to the utilization categories
Insert, after AC-31A AC-31B, the following new utilization category AC-32A AC-32B and
modify the existing category AC-33A AC-33B as follows:
AC-31A AC-31B … … … … … …
AC-32A AC-32B 3,0 1,05 0,65 0,05 3) 3)
AC-33A AC-33B 10 1,05 8) 0,05
3) 3)



Replace, in the heading of the fourth column, “U/U ” by “U /U ”.
e r e

Replace, in the third column, for utilization categories AC-36A AC-36B and DC-36A DC-36B,
4) 4)
“15 ” by “1,5 ”.

---------------------- Page: 11 ----------------------
60947-6-1 Amend. 3/CDV  IEC:200X – 11 –

Replace, in the key, the existing text corresponding to “I” by the following:
I = Current made and broken. The making current is expressed in d.c. or a.c. r.m.s.
symmetrical values but it is understood that, for AC-36A, AC-36B, DC-36A and DC-36B
categories, the actual peak value during the making operation may assume a higher value
than the symmetrical peak value.

Replace, in the key, “U = Minimum power frequency or d.c. recovery voltage” by
“U = power frequency or d.c. recovery voltage ”.
r

Replace the text of the footnote 4) by the following:
4)
Tests shall be carried out with an incandescent light load in accordance with the general test conditions as
specified in 8.3.3.5.1.

Add the following new footnote 8):
8)
Cos ϕ = 0,45 for I ≤ 100 A and cos ϕ = 0,35 for I > 100 A.
e e

Page 31
Table III – Verification of operational performance – Conditions for making and breaking
corresponding to the utilization categories
Insert, after AC-31A AC-31B, the following new utilization category AC-32A AC-32B:
AC-31A AC-31B … … … … … …
AC-32A AC-32B 1,0 1,05 0,8 0,05 3) 3)
AC-33A AC-33B … … … …
… …

Replace, in the heading of the fourth column, “U/U ” by “U /U ”.
e r e

Replace, in the third column, for utilization categories AC-36A AC-36B and DC-36A DC-36B,
4) 4)
“10 ” by “1,0 ”.

---------------------- Page: 12 ----------------------
60947-6-1 Amend. 3/CDV  IEC:200X – 12 –
Replace, in the key, the existing text corresponding to “I” by the following:
I = Current made and broken. The making current is expressed in d.c. or a.c. r.m.s.
symmetrical values but it is understood that, for AC-36A, AC-36B, DC-36A and DC-36B
categories, the actual peak value during the making operation may assume a higher value
than the symmetrical peak value.

Replace, in the key, “U = Minimum power frequency or d.c. recovery voltage” by
“U = power frequency or d.c. recovery voltage ”.
r

Replace the text of the footnote 4) by the following:
4)
Tests shall be carried out with an incandescent light load in accordance with the general test conditions as
specified in 8.3.3.5.1.

Add the reference to footnote 8), in column “I/I ”, for utilization categories AC-33 and AC-35.
e

Add the reference to footnote 9), in column “I/I ”, for the utilization category DC-33.
e

Page 33
7.2.3 Dielectric properties
Replace the existing text by the following:
Subclause 7.2.3 of IEC 60947-1 applies.

Page 35
7.2.5.1 Rated short-time withstand current
Delete the note.

---------------------- Page: 13 ----------------------
60947-6-1 Amend. 3/CDV  IEC:200X – 13 –
Page 35 and amendment 1, page 3
Table IV – Value of the test current for the verification of the ability to operate under
short-circuit conditions
Replace, in the first column, “I > 1 000” by “1 000 < I ”.
e e

7.2.5.2 Rated conditional short-circuit current
Add, at the end of this subclause, the following new paragraph:
SCPD used shall comply with its product standard at ratings not lower than those assigned in
this standard.

Page 37
7.2.5.3 Rated short-circuit making capacity
Replace the first paragraph of this subclause by the following:
TSE class PC for which the manufacturer has not assigned a rated conditional short-circuit
current (or an I following conditions of 8.3.4.4) and TSE class CB shall make the test
q
a
currents in accordance with Table IV and subclause 4.3.6.2 (see also footnote of Table V).

7.2.6 Switching overvoltages
Delete completely this subclause.

Amendment 2, page 5
7.3.1 General
Replace, in the first paragraph, “following addition” by “following additions”.

Add, after the first paragraph, the following new paragraph:
The main part of derived TSE, where installed as specified by the manufacturer regarding
EMC, shall not to be tested according to this standard when fulfilling EMC requirements of
same or higher severity.

---------------------- Page: 14 ----------------------
60947-6-1 Amend. 3/CDV  IEC:200X – 14 –
Amendment 2, page 7
7.3.2 Immunity
Replace the existing text of this subclause, including subclauses 7.3.2.1 and 7.3.2.2, by the
following:
Subclause 7.3.2 of IEC 60947-1 applies with Table 10 and the following addition.
The test values and procedures are given in 8.5.

Table 10 – Specific acceptance criteria for immunity tests
Replace the title of this table by the following:
Table 10 – Acceptance criteria

Replace the column heading “Acceptance criteria” by “Acceptance criteria (performance
criteria during tests)”.

7.3.3 Emission
Replace the existing text of this subclause, including subclauses 7.3.3.1 and 7.3.3.2 by the
following:
Subclause 7.3.3 of IEC 60947-1 applies with the following addition.
The test values and procedures are given in 8.5.

Page 37
8.1.1 General
Replace the first paragraph by the following:
Subclause 8.1.1 of IEC 60947-1 applies.

Delete the second paragraph.

---------------------- Page: 15 ----------------------
60947-6-1 Amend. 3/CDV  IEC:200X – 15 –
8.1.2 Type tests
Replace the existing text of this subclause by the following:
Type tests to verify compliance of TSE with this standard are defined in Table V and Table Va.

Page 39
8.2 Compliance with constructional requirements
Replace the existing text of this subclause by the following:
Subclause 7.1 of this standard and subclauses 8.2.1 to 8.2.4 of IEC 60947-1 apply.

8.3.1 Test sequences
Replace the second sentence of the last paragraph by the following:
In this case, the test sequence shall be a) to l).

---------------------- Page: 16 ----------------------
60947-6-1 Amend. 3/CDV  IEC:200X – 16 –
Page 41 and amendment 2, page 9
Table V – List of type tests (referred to by their sub-clause numbers) to which a given
ATSE shall be submitted
Replace the table, including the title, by the following:
Table V – List of type tests (overall scheme of test sequences)
Test sequence Tests Ref. Applicable to N°
class of TSE sample
c

a) Constructional requirements 8.2
b) Operation 8.3.3.1
I
General
c) Controls, sequence and limits of operation 8.3.3.2 PC/CC CB 1
performance
characteristics
d) Temperature rise 8.3.3.3
e) Dielectric properties 8.3.3.4
f) Making and breaking capacities 8.3.3.5
II
g) Operational performance capability (electrical) 8.3.3.6.2
Operating PC/CC CB 1
e) Dielectric properties 8.3.3.4
performance
g) Operational performance capability (mechanical) 8.3.3.6.3
h) Short-circuit making capacity 8.3.4.2.1 PC/CC CB

a

d
8.3.3.4 PC/CC CB
e) Dielectric properties
i) Short-circuit breaking capacity 8.3.4.2.2 − CB
d
8.3.3.4 CB
−
e) Dielectric properties
III
Verification of
j) Short time withstand current 8.3.4.3 PC/CC −
1
short-circuit
a

capabilities
d
8.3.3.4 PC/CC −
e) Dielectric properties
k) Conditional short-circuit current 8.3.4.4 PC/CC
−
b

e) Dielectric properties 8.3.3.4 PC/CC CB
d) Temperature rise 8.3.3.3 PC/CC CB
IV l) Electromagnetic compatibility 8.5 PC/CC CB
Environmental 1
tests
a
This test is not required if the manufacturer has assigned a conditional short-circuit current.
b
This test is made only if the manufacturer assigns a short-circuit protective device.
c
Tests can be made on one sample only at the manufacturer's discretion.
d
Test to be made only if not required after a further test on the same sample.

Add, after table V, the following new table Va:

---------------------- Page: 17 ----------------------
60947-6-1 Amend. 3/CDV  IEC:200X – 17 –
Table Va – List of type tests (referred to by their subclause numbers) to which a given
derived TSE shall be submitted
N°
Test sequence Tests Ref. Applicable to Class of TSE sample
f

  PC/CC CB
Other Other
  Main Main
a a


a) Constructional 8.2  X  X
requirements
b) Operation 8.3.3.1 X X X X X X X
I
General
c) Controls, sequence and 8.3.3.2 X X X X X X X
1
performance
limits of operation
characteristics
h
8.3.3.3 X X X X X X X
d) Temperature rise
e) Dielectric properties 8.3.3.4 X X X X X X X
f) Making and breaking 8.3.3.5 X X X X X
g g
capacities including

interlock function test
II g) Operational performance 8.3.3.6.2 X X X X X

Operating g g g g g 1
capability (Electrical)

performance
e
8.3.3.4 X X X X X X X
e) Dielectric properties
g) Operational performance 8.3.3.6.3 X X X X X X X
g g
capability (Mechanical)


h) Short-circuit making 8.3.4.2.1 X X X X X

c c c c c
capacity

i) Short-circuit breaking 8.3.4.2.2 N/A N/A X X X
c c c
capacity

III
j) Short time withstand 8.3.4.3 X X X N/A N/A N/A
Verification of

current b d b d d
1

short-circuit
capabilities
k) Conditional short-circuit 8.3.4.4 X X N/A N/A N/A
current c c

e
8.3.3.4 X X X X X X X
e) Dielectric properties
e
8.3.3.3 X X X X X X X
d) Temperature rise
IV l) Electromagnetic 8.5 X X X X X X X
Environmental compatibility 1
tests
N/A: Not applicable.
a
For convenience, parts other than main parts (e.g. those intended to control the TSE: control switches,
mechanical interlocking devices, …) are called other parts.
b
See also 7.2.5.1 and 8.3.4.3 for applicability.
c
If applicable (see 7.2.5.3, 8.3.4.2 and/or 8.3.4.4).
d
Only if mounted in a dedicated enclosure.
e
Only if operating performance and/or short-circuit test required.
f
Tests can be made on one sample only at the manufacturer's discretion.
g
If applicable (see 8.3.3.5.3 and/or 8.3.3.6.1).
h
Tests required only if current carrying capacity of the internal conductors are less than that required by Table 9
and 10 of IEC 60947-1.

60947-3
60947-4

60947-2
60947-3
60947-6-2

---------------------- Page: 18 ----------------------
60947-6-1 Amend. 3/CDV  IEC:200X – 18 –
Page 41
8.3.3.2 Controls, sequence and limits of operation
Insert the following paragraph:
TSE shall be tested to verify their performance according to the requirements given in 7.2.1.2.
Test details are given in the following subclauses.

8.3.3.2.1 Overvoltage condition
Modify the existing text to read:
“The normal and the alternative supply terminals of ATSE and the coil of control
electromagnet of RTSE shall be energized at 110 % of the …”

Page 45
8.3.3.2.6 Operating times
Delete completely this subclause.

8.3.3.4 Dielectric properties
Replace the existing text, including subclauses 8.3.3.4.1 to 8.3.3.4.4, by the following:
Subclause 8.3.3.4 of IEC 60947-1 applies with the following modifications.
8.3.3.4.1 Type tests
Subclause 8.3.3.4.1 of IEC 60947-1 applies with the addition of:
− the following sentence, at the end of item 1):
The metal foil shall not be applied for power frequency withstand verification after making,
breaking, operational and short-circuit tests.
− the following sentence, after the second paragraph of item 2) b):
Control circuits of a TSE connected between phases which have been subjected to U
imp
test voltages lower than those specified in 7.2.3.1 and 8.3.3.4.2 of IEC 60947-1 may be
disconnected for the test.
− the following sentence, after the first paragraph of item 2) c) ii):
In the case where the control circuit, normally connected to the main circuit, is
disconnected (according to 8.3.3.4.1, item 2) b)), the method used to maintain the main
contacts closed shall be indicated in the test report, where relevant.

---------------------- Page: 19 ----------------------
60947-6-1 Amend. 3/CDV  IEC:200X – 19 –
− the following sentence at the end of 8.3.3.4.1, item 8):
For equipment suitable for isolation, the leakage current shall be measured through each
pole with the contacts in the open position, at a test voltage of 1,1 U and shall not exceed
e
0,5 mA.
Verification of impulse withstand voltage across open contacts is not required for equipment
not suitable for isolation (see 8.3.3.4.1, item 2) c) iv) of IEC 60947-1).

Page 49 and amendment 1, page 3
Table VI – Dielectric test voltage corresponding to the rated insulation voltage
Delete this table.

Page 55
8.3.3.5.4
...