|
SLOVENSKI STANDARD
01-april-2019
0LQLDWXUQHYDURYDONHGHO 9DURYDOþQLXSRULVSRVHEQRQDGWRNRYQR]DãþLWR ,(&
Miniature fuses - Part 8: Fuse resistors with particular overcurrent protection (IEC 60127-
8:2018)
Geräteschutzsicherungen - Teil 8: Sicherungswiderstände für Teilbereichsschutz (IEC
60127-8:2018)
Coupe-circuits miniatures – Partie 8 : Résistances fusibles avec une protection
particulière contre les surintensités (IEC 60127-8:2018)
Ta slovenski standard je istoveten z: EN IEC 60127-8:2018
ICS:
29.120.50 9DURYDONHLQGUXJD Fuses and other overcurrent
PHGWRNRYQD]DãþLWD protection devices
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EUROPEAN STANDARD EN IEC 60127-8
NORME EUROPÉENNE
EUROPÄISCHE NORM
August 2018
ICS 29.120.50
English Version
Miniature fuses - Part 8: Fuse resistors with particular
overcurrent protection
(IEC 60127-8:2018)
Coupe-circuits miniatures – Partie 8 : Résistances fusibles Geräteschutzsicherungen - Teil 8: Sicherungswiderstände
avec une protection particulière contre les surintensités für Teilbereichsschutz
(IEC 60127-8:2018) (IEC 60127-8:2018)
This European Standard was approved by CENELEC on 2018-07-31. 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 CEN-CENELEC
Management Centre 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 CEN-CENELEC Management Centre has the
same status as the official versions.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic,
Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden,
Switzerland, Turkey and the United Kingdom.
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2018 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN IEC 60127-8:2018 E
European foreword
The text of document 32C/542/FDIS, future edition 1 of IEC 60127-8, prepared by SC 32C "Miniature
fuses" of IEC/TC 32 "Fuses" was submitted to the IEC-CENELEC parallel vote and approved by
CENELEC as EN IEC 60127-8:2018.
The following dates are fixed:
• latest date by which the document has to be implemented at national (dop) 2019-04-30
level by publication of an identical national standard or by endorsement
• latest date by which the national standards conflicting with the (dow) 2021-07-31
document have to be withdrawn
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CENELEC shall not be held responsible for identifying any or all such patent rights.
Endorsement notice
The text of the International Standard IEC 60127-8:2018 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 60068-2-58:2015 NOTE Harmonized as EN 60068-2-58:2015 (not modified)
IEC 61191-2:2013 NOTE Harmonized as EN 61191-2:2013 (not modified)
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements 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 1 Where an International Publication has been modified by common modifications, indicated by (mod), the relevant
EN/HD applies.
NOTE 2 Up-to-date information on the latest versions of the European Standards listed in this annex is available here:
www.cenelec.eu.
Publication Year Title EN/HD Year
IEC 60063 2015 Preferred number series for resistors and EN 60063 2015
capacitors
IEC 60068-2-21 2006 Environmental testing - Part 2-21: Tests - EN 60068-2-21 2006
Test U: Robustness of terminations and
integral mounting devices
IEC 60115-1 (mod) 2008 Fixed resistors for use in electronic EN 60115-1 2011
equipment -- Part 1: Generic specification
- - + A11 2015
IEC 60115-4-101 1995 Fixed resistors for use in electronic - -
equipment - Part 4: Detail specification:
Fixed power wirewound resistors with
solderable axial wire leads - Stability class
5%. Assessment level E
IEC 60115-4-102 1995 Fixed resistors for use in electronic - -
equipment - Part 4: Detail specification:
Fixed power wirewound resistors with
solderable axial wire leads - Stability class
1%. Assessment level E
IEC 60127-1 2006 Miniature fuses -- Part 1: Definitions for EN 60127-1 2006
miniature fuses and general requirements
for miniature fuse-links
+ A1 2011 + A1 2011
+ A2 2015 + A2 2015
IEC 60194 2015 Printed board design, manufacture and - -
assembly - Terms and definitions
IEC 60664-1 2007 Insulation coordination for equipment EN 60664-1 2007
within low-voltage systems - Part 1:
Principles, requirements and tests
IEC 60695-2-12 2010 Fire hazard testing -- Part 2-12: EN 60695-2-12 2010
Glowing/hot-wire based test methods -
Glow-wire flammability index (GWFI) test
method for materials
IEC 60695-2-13 2010 Fire hazard testing -- Part 2-13: EN 60695-2-13 2010
Glowing/hot-wire based test methods -
Glow-wire ignition temperature (GWIT) test
method for materials
IEC 60695-4 2012 Fire hazard testing - Part 4: Terminology EN 60695-4 2012
concerning fire tests for electrotechnical
products
IEC 61249-2-7 2002 Materials for printed boards and other EN 61249-2-7 2002
interconnecting structures - Part 2-7:
Reinforced base materials clad and unclad
- Epoxide woven E-glass laminated sheet
of defined flammability (vertical burning
test), copper-clad
- - + corrigendum 2005
Sep.
IEC 60127-8
Edition 1.0 2018-06
INTERNATIONAL
STANDARD
Miniature fuses –
Part 8: Fuse resistors with particular overcurrent protection
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 29.120.50 ISBN 978-2-8322-5843-9
– 2 – IEC 60127-8:2018 © IEC 2018
CONTENTS
FOREWORD . 4
INTRODUCTION . 6
1 Scope . 7
2 Normative references . 7
3 Terms and definitions . 8
4 General requirements . 10
5 Standard ratings . 10
6 Marking . 11
7 General notes on tests . 11
7.1 Atmospheric conditions for testing . 11
7.2 Type tests . 11
7.2.1 General . 11
7.3 Fuse-bases for tests . 12
7.3.1 General . 12
7.3.2 General requirements . 12
7.3.3 Through-hole mounting of fuse resistors with particular overcurrent
protection . 13
7.3.4 Surface mounting of fuse resistors with particular overcurrent protection . 13
7.4 Nature of supply . 13
8 Dimensions and construction . 13
8.1 Dimensions . 13
8.1.1 Creepage distances and clearances . 13
8.2 Construction . 14
8.3 Terminations . 14
8.3.1 Through-hole mount fuse resistors with particular overcurrent protection . 15
8.3.2 Surface mount fuse resistors with particular overcurrent protection . 15
8.4 Alignment and configuration of terminations . 15
8.5 Soldered joints . 15
8.6 Solderability of terminations . 16
8.7 Resistance to soldering heat . 16
9 Electrical requirements . 16
9.1 Resistance value . 16
9.2 Functioning characteristic at the minimum breaking dissipation. 16
9.2.1 Functioning characteristic at an ambient temperature of 70 °C . 16
9.2.2 Test at elevated temperature . 16
9.2.3 Test procedure . 16
9.2.4 Presentation of results . 17
9.3 Rated breaking capacity. 17
9.3.1 Operating conditions . 17
9.3.2 Criteria for satisfactory performance . 17
9.3.3 Insulation resistance . 18
9.3.4 Dielectric strength. 18
9.4 Endurance tests . 18
9.5 Maximum sustained dissipation . 18
IEC 60127-8:2018 © IEC 2018 – 3 –
9.6 Pulse tests . 18
9.7 Temperature of fuse resistors with particular overcurrent protection. 18
9.8 Operating overvoltage . 19
Bibliography . 25
Figure 1 – Test board for through-hole mount fuse resistors with particular overcurrent
protection . 21
Figure 2 – Test board for surface mount fuse resistors with particular overcurrent
protection . 22
Figure 3 – Test fuse-base . 23
Figure 4 – Bending jig for surface mount fuse resistors with particular overcurrent
protection . 24
Figure 5 – Test circuit for the tests according to 9.3 . 24
Table 1 – Creepage distances and clearances (absolute minimum values) . 14
Table 2 – Test voltages for dielectric stre
...