EN 60947-7-1:2009
(Main)Low-voltage switchgear and controlgear - Part 7-1: Ancillary equipment - Terminal blocks for copper conductors
Low-voltage switchgear and controlgear - Part 7-1: Ancillary equipment - Terminal blocks for copper conductors
IEC 60947-7-1:2009 specifies requirements for terminal blocks with screw-type or screwless-type clamping units primarily intended for industrial or similar use and to be fixed to a support to provide electrical and mechanical connection between copper conductors. lt applies to terminal blocks intended to connect round copper conductors, with or without special preparation, having a cross-section between 0,2 mm2 and 300 mm2 (AWG 24/600 kcmil), intended to be used in circuits of a rated voltage not exceeding 1 000 V a.c. up to 1 000 Hz or 1 500 V d.c. This standard may be used as a guide for - terminal blocks requiring the fixing of special devices to the conductors, for example quick connect terminations or wrapped connections, etc.; - terminal blocks providing direct contact to the conductors by means of edges or points penetrating the insulation, for example insulation displacement connections, etc.; - special types of terminal blocks, for example with diodes or varistors or similar component holders, etc. Where applicable in this standard, the term 'clamping unit' has been used instead of the term 'terminal'. This is taken into account in case of reference to IEC 60947-1. The main technical modifications of this standard since this previous publication are listed below: - added in the scope that this standard may be used as a guide for special types of terminal blocks, for example with diodes or varistors or similar component holders; - the conventional free air thermal current added in 5.2 in the list of information to be stated by the manufacturer; - update of 7.1.4 that the colour combination green-yellow is not allowed for terminal blocks; - the consequences in case of failed single tests and failed tests within test sequences specified in 8.2; - requirements regarding clearances and creepage distances replaced by reference to Annex H of IEC 60947-1, Annex A deleted; - requirements for tightening torques for the tests improved and referenced to Table 4 of IEC 60947-1, Annex C deleted; - in 8.3.3.3 changed reference for pull-out force to IEC 60947-1; - the wording of the test of the voltage drop improved in 8.4.4; - the wording of the short-time withstand current test improved in 8.4.6; - Annex D with additional requirements for test disconnect terminal blocks added. The scope modified accordingly. This publication shall be read in conjunction with IEC 60947-1:2007.
Niederspannungsschaltgeräte - Teil 7-1: Hilfseinrichtungen - Reihenklemmen für Kupferleiter
Appareillage à basse tension - Partie 7-1: Matériels accessoires - Blocs de jonction pour conducteurs en cuivre
La CEI 60947-7-1:2009 spécifie les exigences pour les blocs de jonction avec des organes de serrage du type à vis ou du type sans vis destinés principalement à des usages industriels ou similaires et à être fixés sur un support afin d'assurer une connexion électrique et mécanique entre des conducteurs en cuivre. Elle s'applique aux blocs de jonction destinés à raccorder des conducteurs ronds en cuivre, avec ou sans préparation spéciale, de section comprise entre 0,2 mm2 et 300 mm2 (AWG 24/600 kcmil), destinés à être insérés dans des circuits dont la tension assignée ne dépasse pas 1 000 V en courant alternatif jusqu'à 1 000 Hz ou 1 500 V en courant continu. La présente norme peut servir de guide pour - les blocs de jonction nécessitant la fixation de pièces spéciales sur les conducteurs, par exemple les connexions rapides ou les connexions enroulées, etc.; - les blocs de jonction assurant un contact direct avec les conducteurs au moyen de lames ou de pointes pénétrant à travers l'enveloppe isolante, par exemple les connexions par déplacement d'isolant, etc.; - les types particuliers de blocs de jonction, par exemple comportant des diodes ou des varistances ou des porteurs d'éléments similaires, etc. Dans la présente norme, le terme 'organe de serrage' a été utilisé, s'il y a lieu, à la place du terme 'borne'. Cela est pris en compte en cas de référence à la CEI 60947-1. Les modifications techniques majeures de la présente norme depuis la précédente publication sont listées ci-dessous: - l'ajout dans le domaine d'application que la présente norme peut être utilisée comme un guide pour des types particuliers de blocs de jonction, par exemple comportant des diodes ou des varistances ou des porteurs d'éléments similaires; - le courant thermique conventionnel à l'air libre ajouté en 5.2 dans la liste des informations à établir par le constructeur; - la mise à jour de 7.1.4 spécifiant que la combinaison de couleur vert-jaune n'est pas admise pour les blocs de jonction; - les conséquences en cas d'essais séparés ayant failli et en cas d'essais ayant failli au cours des séquences d'essai spécifiées en 8.2; - les exigences concernant les distances d'isolement et les lignes de fuite remplacées par la référence à l'Annexe H de la CEI 60947-1 et la suppression de l'Annexe A; - les exigences concernant les couples de serrage pour les essais améliorées et référencées au Tableau 4 de la CEI 60947-1 et la suppression de l'Annexe C; - en 8.3.3.3 la référence concernant la force de traction pour la CEI 60947-1 a été modifiée; - en 8.4.4 la rédaction de l'essai de chute de tension a été améliorée; - en 8.4.6 la rédaction de l'essai du courant assigné de courte durée admissible a été améliorée; - ajout de l'Annexe D avec des exigences supplémentaires pour les blocs de jonction de déconnexion d'essai. Le domaine d'application a été modifié en conséquence. Cette publication doit être lue conjointement avec la CEI 60947-1:2007.
Nizkonapetostne stikalne in krmilne naprave - 7-1. del: Pomožna oprema - Priključni bloki za bakrene vodnike (IEC 60947-7-1:2009)
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
01-september-2009
1DGRPHãþD
SIST EN 60947-7-1:2003
1L]NRQDSHWRVWQHVWLNDOQHLQNUPLOQHQDSUDYHGHO 3RPRåQDRSUHPD
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Low-voltage switchgear and controlgear - Part 7-1: Ancillary equipment - Terminal blocks
for copper conductors (IEC 60947-7-1:2009)
Niederspannungsschaltgeräte - Teil 7-1: Hilfseinrichtungen - Reihenklemmen für
Kupferleiter (IEC 60947-7-1:2009)
Appareillage à basse tension - Partie 7-1: Matériels accessoires - Blocs de jonction pour
conducteurs en cuivre (CEI 60947-7-1:2009)
Ta slovenski standard je istoveten z: EN 60947-7-1:2009
ICS:
29.120.99 'UXJDHOHNWULþQDGRGDWQD Other electrical accessories
RSUHPD
29.130.20 Nizkonapetostne stikalne in Low voltage switchgear and
krmilne naprave controlgear
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EUROPEAN STANDARD
EN 60947-7-1
NORME EUROPÉENNE
June 2009
EUROPÄISCHE NORM
ICS 29.130.20 Supersedes EN 60947-7-1:2002
English version
Low-voltage switchgear and controlgear -
Part 7-1: Ancillary equipment -
Terminal blocks for copper conductors
(IEC 60947-7-1:2009)
Appareillage à basse tension - Niederspannungsschaltgeräte -
Partie 7-1: Matériels accessoires - Teil 7-1: Hilfseinrichtungen -
Blocs de jonction Reihenklemmen für Kupferleiter
pour conducteurs en cuivre (IEC 60947-7-1:2009)
(CEI 60947-7-1:2009)
This European Standard was approved by CENELEC on 2009-06-01. 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, Bulgaria, Cyprus, the
Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain,
Sweden, Switzerland and the United Kingdom.
CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
Central Secretariat: Avenue Marnix 17, B - 1000 Brussels
© 2009 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 60947-7-1:2009 E
Foreword
The text of document 17B/1654/FDIS, future edition 3 of IEC 60947-7-1, 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 60947-7-1 on 2009-06-01.
This European Standard supersedes EN 60947-7-1:2002.
The main technical modifications of EN 60947-7-1:2009 since EN 60947-7-1:2002 are listed below:
– added in the scope that EN 60947-7-1:2009 may be used as a guide for special types of terminal
blocks, for example with diodes or varistors or similar component holders;
– the conventional free air thermal current added in 5.2 in the list of information to be stated by the
manufacturer;
– update of 7.1.4 that the colour combination green-yellow is not allowed for terminal blocks;
– the consequences in case of failed single tests and failed tests within test sequences specified in 8.2;
– requirements regarding clearances and creepage distances replaced by reference to Annex H of
EN 60947-1, Annex A deleted;
– requirements for tightening torques for the tests improved and referenced to Table 4 of EN 60947-1,
Annex C deleted;
– in 8.3.3.3 changed reference for pull-out force to EN 60947-1;
– the wording of the test of the voltage drop improved in 8.4.4;
– the wording of the short-time withstand current test improved in 8.4.6;
– Annex D with additional requirements for test disconnect terminal blocks added. The scope has been
modified accordingly.
This standard shall be read in conjunction with EN 60947-1. The provisions of the general rules dealt with
in EN 60947-1 are applicable to this standard, where specifically called for. Clauses and subclauses,
tables, figures and annexes thus applicable are identified by reference to EN 60947-1, e.g. 1.2 of
EN 60947-1, Table 4 of EN 60947-1 or Annex A of EN 60947-1.
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) 2010-03-01
– latest date by which the national standards conflicting
with the EN have to be withdrawn (dow) 2012-06-01
Annex ZA has been added by CENELEC.
__________
– 3 – EN 60947-7-1:2009
Endorsement notice
The text of the International Standard IEC 60947-7-1:2009 was approved by CENELEC as a European
Standard without any modification.
In the official version, for Bibliography, the following notes have to be added for the standards indicated:
IEC 60228 NOTE Harmonized as EN 60228:2005 (not modified).
IEC 60715 NOTE Harmonized as EN 60715:2001 (not modified).
__________
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 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 60695-11-5 2004 Fire hazard testing - EN 60695-11-5 2005
Part 11-5: Test flames - Needle-flame test
method - Apparatus, confirmatory test
arrangement and guidance
IEC 60947-1 2007 Low-voltage switchgear and controlgear - EN 60947-1 2007
Part 1: General rules
ISO 4046-4 2002 Paper, board, pulps and related terms - - -
Vocabulary -
Part 4: Paper and board grades and
converted products
IEC 60947-7-1 ®
Edition 3.0 2009-04
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Low-voltage switchgear and controlgear –
Part 7-1: Ancillary equipment – Terminal blocks for copper conductors
Appareillage à basse tension –
Partie 7-1: Matériels accessoires – Blocs de jonction pour conducteurs en cuivre
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
V
CODE PRIX
ICS 29.130.20 ISBN 2-8318-1038-0
– 2 – 60947-7-1 © IEC:2009
CONTENTS
FOREWORD.4
1 General .6
1.1 Scope.6
1.2 Normative references .6
2 Definitions .7
3 Classification.7
4 Characteristics .7
4.1 Summary of characteristics .7
4.2 Type of terminal block .7
4.3 Rated and limiting values .8
4.3.1 Rated voltages .8
4.3.2 Short-time withstand current.8
4.3.3 Standard cross-sections .8
4.3.4 Rated cross-section.8
4.3.5 Rated connecting capacity.9
5 Product information .9
5.1 Marking .9
5.2 Additional information.9
6 Normal service, mounting and transport conditions.10
7 Constructional and performance requirements.10
7.1 Constructional requirements.10
7.1.1 Clamping units.10
7.1.2 Mounting .10
7.1.3 Clearances and creepage distances .10
7.1.4 Terminal identification and marking .10
7.1.5 Resistance to abnormal heat and fire.11
7.1.6 Rated cross-section and rated connecting capacity .11
7.2 Performance requirements .11
7.2.1 Temperature-rise .11
7.2.2 Dielectric properties.11
7.2.3 Short-time withstand current.11
7.2.4 Voltage drop.12
7.2.5 Electrical performance after ageing (for screwless-type terminal
blocks only) .12
7.3 Electromagnetic compatibility (EMC) .12
8 Tests .12
8.1 Kinds of test .12
8.2 General .12
8.3 Verification of mechanical characteristics .13
8.3.1 General .13
8.3.2 Attachment of the terminal block on its support.13
8.3.3 Mechanical properties of clamping units .14
8.4 Verification of electrical characteristics.15
8.4.1 General .15
8.4.2 Verification of clearances and creepage distances .16
8.4.3 Dielectric tests.16
60947-7-1 © IEC:2009 – 3 –
8.4.4 Verification of the voltage drop .16
8.4.5 Temperature-rise test .18
8.4.6 Short-time withstand current test .19
8.4.7 Ageing test (for screwless-type terminal blocks only).19
8.5 Verification of thermal characteristics .20
8.6 Verification of EMC characteristics .22
8.6.1 Immunity .22
8.6.2 Emission .22
Annex A vacant.23
Annex B (informative) Items subject to agreement between manufacturer and user .24
Annex C vacant .25
Annex D (normative) Additional requirements for test disconnect terminal blocks.26
Bibliography.34
Figure 1 − Arrangement for test according to 8.3.2 .
...
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