CLC/TR 60269-5:2011
(Main)Low-voltage fuses - Part 5: Guidance for the application of low-voltage fuses
Low-voltage fuses - Part 5: Guidance for the application of low-voltage fuses
IEC/TR 60269-5:2014 serves as an application guide for low-voltage fuses, shows how current-limiting fuses are easy to apply to protect today's complex and sensitive electrical and electronic equipment. This guidance specifically covers low-voltage fuses up to 1 000 V a.c. and 1 500 V d.c. designed and manufactured in accordance with IEC 60269 series. This guidance provides important facts about as well as information on the application of fuses. This second edition cancels and replaces the first edition published in 2010. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: - recommendations for fuse operations in high altitudes added, - more details for operational voltages added, - recommendations for photovoltaic system protection added, - numerous details improved
Niederspannungssicherungen - Teil 5: Leitfaden für die Anwendung von Niederspannungssicherungen
Fusibles basse tension - Partie 5: Lignes directrices pour l'application des fusibles basse tension
Nizkonapetostne varovalke - 5. del: Navodila za uporabo nizkonapetostnih varovalk (IEC/TR 60269-5:2010)
To tehnično poročilo, ki se uporablja kot vodilo za uporabo nizkonapetostnih varovalk, kaže, kako so tokovno omejilne varovalke preproste za uporabo za varovanje današnje kompleksne in občutljive električne in elektronske opreme. Ta navodila izrecno zajemajo nizkonapetostne varovalke do 1000 V izmeničnega toka in 1500 enosmernega toka, načrtovane in proizvedene v skladu s serijo IEC 60269. Ta navodila zagotavljajo pomembna dejstva in tudi informacije o uporabi varovalk.
General Information
Standards Content (Sample)
SLOVENSKI STANDARD
01-julij-2011
Nizkonapetostne varovalke - 5. del: Navodila za uporabo nizkonapetostnih
varovalk (IEC/TR 60269-5:2010)
Low-voltage fuses - Part 5: Guidance for the application of low-voltage fuses (IEC/TR
60269-5:2010)
Niederspannungssicherungen - Teil 5: Leitfaden für die Anwendung von
Niederspannungssicherungen (IEC/TR 60269-5:2010)
Fusibles basse tension - Partie 5: Lignes directrices pour l'application des fusibles basse
tension (CEI/TR 60269-5:2010)
Ta slovenski standard je istoveten z: CLC/TR 60269-5:2011
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.
TECHNICAL REPORT
CLC/TR 60269-5
RAPPORT TECHNIQUE
April 2011
TECHNISCHER BERICHT
ICS 29.120.50
English version
Low-voltage fuses -
Part 5: Guidance for the application of low-voltage fuses
(IEC/TR 60269-5:2010)
Fusibles basse tension - Niederspannungssicherungen -
Partie 5: Lignes directrices pour Teil 5: Leitfaden für die Anwendung von
l'application des fusibles basse tension Niederspannungssicherungen
(CEI/TR 60269-5:2010) (IEC/TR 60269-5:2010)
This Technical Report was approved by CENELEC on 2011-04-25.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, 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
Management Centre: Avenue Marnix 17, B - 1000 Brussels
© 2011 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. CLC/TR 60269-5:2011 E
Foreword
This Technical Report consists of the text of the International Technical Report IEC/TR 60269-5:2010
prepared by SC 32B, Low-voltage fuses, of IEC TC 32, Fuses.
It was circulated for voting in accordance with the Internal Regulations, Part 2, Subclause 11.4.3.3
(simple majority) and was accepted by CENELEC as CLC/TR 60269-5 on 2011-04-25.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN and CENELEC shall not be held responsible for identifying any or all such patent
rights.
Annex ZA has been added by CENELEC.
__________
Endorsement notice
The text of the Technical Report IEC/TR 60269-5:2010 was approved by CENELEC as a Technical
Report without any modification.
__________
- 3 - CLC/TR 60269-5:2011
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 60050-441 - International Electrotechnical Vocabulary - -
(IEV) -
Chapter 441: Switchgear, controlgear and
fuses
IEC/TR 60146-6 - Semiconductor convertors - - -
Part 6: Application guide for the protection of
semiconductor convertors against overcurrent
by fuses
IEC 60269 Series Low-voltage fuses EN 60269 Series
IEC 60269-1 - Low-voltage fuses - EN 60269-1 -
Part 1: General requirements
IEC 60269-2 - Low-voltage fuses - HD 60269-2 -
Part 2: Supplementary requirements for fuses
for use by authorized persons (fuses mainly
for industrial application) - Examples of
standardized systems of fuses A to J
IEC 60269-3 (mod) - Low-voltage fuses - HD 60269-3 -
Part 3: Supplementary requirements for fuses
for use by unskilled persons (fuses mainly for
household or similar applications) - Examples
of standardized systems of fuses A to F
IEC 60269-4 - Low-voltage fuses - EN 60269-4 -
Part 4: Supplementary requirements for fuse-
links for the protection of semiconductor
devices
IEC 60364-4-41 - Low-voltage electrical installations - HD 60364-4-41 -
(mod) Part 4-41: Protection for safety - Protection
against electric shock
IEC 60364-4-43 - Low voltage electrical installations - HD 60364-4-43 -
(mod) Part 4-43: Protection for safety - Protection
against overcurrent
IEC 60364-5-52 - Low-voltage electrical installations - HD 60364-5-52 -
(mod) Part 5-52: Selection and erection of electrical
equipment - Wiring systems
IEC/TR 60787 - Application guide for the selection of high-- -
voltage current-limiting fuse-links for
transformer circuits
IEC 60947 Series Low-voltage switchgear and controlgear EN 60947 Series
IEC 60947-3 - Low-voltage switchgear and controlgear - EN 60947-3 -
Part 3: Switches, disconnectors, switch-
disconnectors and fuse-combination units
Publication Year Title EN/HD Year
IEC 60947-4-1 - Low-voltage switchgear and controlgear - EN 60947-4-1 -
Part 4-1: Contactors and motor-starters -
Electromechanical contactors and motor-
starters
IEC/TR 61912-1 - Low-voltage switchgear and controlgear - - -
Overcurrent protective devices -
Part 1: Application of short-circuit ratings
IEC/TR 60269-5 ®
Edition 1.0 2010-09
TECHNICAL
REPORT
RAPPORT
TECHNIQUE
colour
inside
Low-voltage fuses –
Part 5: Guidance for the application of low-voltage fuses
Fusibles basse tension –
Partie 5: Lignes directrices pour l’application des fusibles basse tension
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
X
CODE PRIX
ICS 29.120.50 ISBN 978-2-88912-175-5
– 2 – TR 60269-5 © IEC:2010
CONTENTS
FOREWORD.5
INTRODUCTION.7
1 Scope.8
2 Normative references .8
3 Terms and definitions .9
4 Fuse benefits.10
5 Fuse construction and operation.11
5.1 Components .11
5.2 Fuse-construction.11
5.2.1 Fuse link.11
5.2.2 Fuse-link contacts .13
5.2.3 Indicating device and striker .13
5.2.4 Fuse-base .13
5.2.5 Replacement handles and fuse-holders .13
5.3 Fuse operation .14
5.3.1 General .14
5.3.2 Fuse operation in case of short-circuit .14
5.3.3 Fuse operation in case of overload .14
6 Fuse-combination units .15
7 Fuse selection and markings .16
8 Conductor protection .18
8.1 General .18
8.2 Type gG .18
8.3 Types gN and gD .19
8.4 Types gR and gS.19
8.5 Protection against short-circuit current only.19
9 Selectivity of protective devices.20
9.1 General .20
9.2 Selectivity between fuses .21
9.2.1 Verification of selectivity for operating time ≥ 0,1 s .21
9.2.2 Verification of selectivity for operating time < 0,1 s .22
9.2.3 Verification of total selectivity .22
9.3 Selectivity of circuit-breakers upstream of fuses .22
9.3.1 General .22
9.3.2 Verification of selectivity for operating time ≥ 0,1 s .22
9.3.3 Verification of selectivity for operating time < 0,1 s .23
9.3.4 Verification of total selectivity .23
9.4 Selectivity of fuses upstream of circuit-breakers .23
9.4.1 General .23
9.4.2 Verification of selectivity for operating time ≥ 0,1 s .23
9.4.3 Verification of selectivity for operating time < 0,1 s .23
9.4.4 Verification of total selectivity .23
10 Short-circuit damage protection .25
10.1 General .25
10.2 Short-circuit current paths .25
TR 60269-5 © IEC:2010 – 3 –
10.3 Current limitation.26
10.4 Rated conditional short-circuit current, rated breaking capacity .26
11 Protection of power factor correction capacitors .26
12 Transformer protection .27
12.1 Distribution transformers with a high-voltage primary .27
12.2 Distribution transformers with a low-voltage primary.28
12.3 Control circuit transformers .28
13 Motor circuit protection .28
13.1 General .28
13.2 Fuse and motor-starter coordination .29
13.3 Criteria for coordination at the rated conditional short-circuit current I .29
q
13.4 Criteria for coordination at the crossover current I .30
co
13.5 Criteria for coordination at test current “r”.31
14 Circuit-breaker protection .31
15 Protection of semiconductor devices .31
16 Fuses in enclosures.32
16.1 Limiting temperature of type gG fuse-links according to IEC 60269-2 –
System A.32
16.2 Other fuse-links.33
17 DC applications .33
17.1 Short-circuit protection .33
17.2 Overload protection .
...
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