SIST HD 60269-2:2013

Low-voltage fuses - Part 2: Supplementary requirements for fuses for use by authorized persons (fuses mainly for industrial application) - Examples of standardized systems of fuses A to K (IEC 60269-2:2013, modified)

Fuses for use by authorized persons are generally designed to be used in installations where the fuse-links are accessible to, and may be replaced by, authorized persons only. Fuses for use by authorized persons according to the following fuse systems also comply with the requirements of the corresponding subclauses of IEC 60269-1, unless otherwise defined in this standard. This standard is divided into fuse systems, each dealing with a specific example of standardized fuses for use by authorized persons: Fuse system A: Fuses with fuse-links with blade contacts (NH fuse system) Fuse system B: Fuses with striker fuse-links with blade contacts (NH fuse system) Fuse system C: Fuse-rails (NH fuse system) Fuse system D: Fuse-bases for busbar mounting (NH fuse system) Fuse system E: Fuses with fuse-links for bolted connections (BS bolted fuse system) Fuse system F: Fuses with fuse-links having cylindrical contact caps (NF cylindrical fuse system) Fuse system G: Fuses with fuse-links with offset blade contacts (BS clip-in fuse system) Fuse system H: Fuses with fuse-links having "gD" and "gN" characteristic (class J and class L time delay and non time delay fuse types) Fuse system I: gU fuse-links with wedge tightening contacts Fuse system J: Fuses with fuse-links having "gD class CC" and "gN class CC" characteristics (class CC time delay and non-time delay fuse types) Fuse system K: gK fuse-links with blade for bolted connections - High fuse-link ratings from 1250 A up to 4800 A (master fuse-links).

Fusibles Basse Tension - Partie 2: Exigences supplémentaires pour les fusibles destinés à être utilisés par des personnes habilitées (fusibles pour usages essentiellement industriels) - Exemples de systèmes de fusibles normalisés A à K (IEC 60269-2:2013,modifiziert)

In diesem Bericht sind Sammelbegriffe und zugehörige Kodes für Gruppen von Medizinprodukten mit gemeinsamen Merkmalen aufgeführt. Die Auflistung ist so strukturiert, so dass die Begriffe für die bei der regulativen Berichterstattung geforderten Zwecke und bei derbeim für die Anwendung der Bestimmungen über Medizinprodukte bedeutsamen gegenseitigen VerbindungsaufnahmeInformationsaustausch verwendet werden können.
Für bestimmte Zwecke bei der Anwendung der Richtlinien über Medizinprodukte besteht die dringende Erfordernis für die Entwicklung einer Liste von Sammelbegriffen auf der Grundlage der anzuwendender festgelegteridentifizierten Prinzipien; diese Begriffe sind beispielsweise zu verwenden:
-   bei der Darstellungzur Angabe des Anwendungsbereichs Gültigkeitsbereichs von Bescheinigungen Benannter Stellen bei der Beurteilung, welche Gruppen, Familien oder Arten von Medizinprodukten im das Qualitätssicherungssystem eines Herstellers erfasst sindumfasst;
-   bei der Feststellungzur Angabe des Bereichs Umfangs von Fertigkeitender Sachkunde und allgemeinen technischen FähigkeitenEIgnung, für die eine Benannte Stelle anerkannt und durch die einschlägige Zuständige Behörde ernannt wurde;
-   beim für den Informationsaustausch zwischen Zuständigen Behörden, wenn allgemeine Informationen über einzelne Hersteller zur Aufnahme in die Europäische Datenbank für Medizinprodukte (EUDAMED) bekannt gegebengemeldet werden.
Für die Entwicklung von Gruppen von Sammelbegriffen sind Zubehörteileist das Zubehör zu Medizinprodukten de facto in den entsprechenden Sammelbegriff für Medizinprodukte aufgenommenintegriert.

Fusibles Basse Tension - Partie 2: Exigences supplémentaires pour les fusibles destinés à être utilisés par des personnes habilitées (fusibles pour usages essentiellement industriels) - Exemples de systèmes de fusibles normalisés A à K (CEI 60269-2:2013, modifiée)

La CEI 60269-2:2013 fournit des exigences supplémentaires pour les fusibles destinés à être utilisés par des personnes habilitées et sont généralement conçus pour usage dans des installations où les éléments de remplacement ne sont accessibles qu'à des personnes habilitées, et ne peuvent être remplacés que par elles. Sauf indication contraire dans cette norme, les fusibles destinés à être utilisés par des personnes habilitées et correspondant aux systèmes de fusibles suivant satisfont également aux exigences des paragraphes correspondants de la CEI 60269-1. La présente norme est divisée en systèmes de fusibles traitant chacun d'un exemple spécifique de fusibles normalisés destinés à être utilisés par des personnes habilitées: - Système de fusibles A: Fusibles avec éléments de remplacement à couteaux (système de fusibles NH), - Système de fusibles B: Fusibles avec éléments de remplacement à couteaux avec percuteur (système de fusibles NH), - Système de fusibles C: Réglettes à fusible (système de fusibles NH), - Système de fusibles D: Socles pour montage sur jeu de barres (système de fusibles NH), - Système de fusibles E: Fusibles avec éléments de remplacement à platines (système de fusibles à platines BS), - Système de fusibles F: Fusibles avec éléments de remplacement à capsules cylindriques (système de fusibles cylindriques NF), - Système de fusibles G: Fusibles avec éléments de remplacement à couteaux déportés (système de fusibles à pattes d'attache BS), - Système de fusibles H: Fusibles dont les éléments de remplacement ont des caractéristiques 'gD' et 'gN' (types de fusibles temporisés ou non temporisés de classe J et de classe L), - Système de fusibles I: Eléments de remplacement gU à contacts de serrage à encoche, - Système de fusibles J: Fusibles dont les éléments de remplacement ont des caractéristiques 'gD de classe CC' et 'gN de classe CC' (types de fusibles temporisés et non temporisés de classe CC), - Système de fusibles K: Eléments de remplacement gK à couteaux pour raccordement boulonnés - Eléments de remplacement de courants assignés élevés de 1250 A à 4 800 A (master fusibles). Cette cinquième édition de la CEI 60269-2 annule et remplace la quatrième édition parue en 2010. Cette édition constitue une révision technique. Cette édition inclut les modifications techniques majeures suivantes par rapport à l'édition précédente: 1. systèmes de fusibles A et B: modification des valeurs de puissance dissipée des éléments de remplacement des NH aM; 2. systèmes de fusibles A et B: introduction des dimensions r des éléments de remplacement NH; 3. ajout d'un nouveau système de fusibles K: éléments de remplacement gK à couteaux pour raccordement boulonné. Mots clés: systèmes de fusibles normalisés A à K, exigences supplémentaires pour les fusibles

Nizkonapetostne varovalke - 2. del: Dodatne zahteve za varovalke, ki jih uporabljajo strokovne osebe (uporaba varovalk zlasti v industriji) - Primeri tipov standardiziranih varovalk od A do K (IEC 60269-2:2013, spremenjen)

Varovalke, ki jih uporabljajo strokovne osebe, so običajno zasnovane za uporabo pri napeljavah, kjer so vložki varovalk dosegljivi le strokovnim osebam, ki jih tudi edine lahko menjavajo. Varovalke, ki jih uporabljajo strokovne osebe, v skladu z naslednjimi sistemi varovalk ustrezajo zahtevam iz ustreznih točk standarda IEC 60269-1, razen če je v tem standardu navedeno drugače. Ta standard je razdeljen na sisteme varovalk, pri čemer vsak obravnava določen primer standardiziranih varovalk, ki jih uporabljajo strokovne osebe: Sistem varovalk A: varovalke z vložki z nožastimi kontakti (sistem varovalk NH). Sistem varovalk B: varovalke z zapiralnimi vložki z nožastimi kontakti (sistem varovalk NH). Sistem varovalk C: zapahi v varovalkah (sistem varovalk NH). Sistem varovalk D: osnove varovalk za namestitev zbiralke (sistem varovalk NH). Sistem varovalk E: varovalke z vložki za vijačne spoje (vijačni sistem varovalk BS). Sistem varovalk F: varovalke z vložki, ki imajo cilindrične kontaktne kapice (sistem cilindričnih varovalk NF). Sistem varovalk G: varovalke z vložki s stranskimi nožastimi kontakti (sistem varovalk BS). Sistem varovalk H: varovalke z vložki, ki imajo »gD« in gN« značilnosti (razred J in časovna zakasnitev razreda L in vrste varovalk brez časovne zakasnitve). Sistem varovalk I: gU vložki varovalk s kontakti za zategovanje z zagozdo. Sistem varovalk J: varovalke z vložki, ki imajo značilnosti »gD razreda CC« in »gN razreda CC« (časovna zakasnitev razreda CC in vrste varovalk brez časovne zakasnitve). Sistem varovalk K: gK vložki varovalk z nožem za vijačne spoje – visoke mejne vrednosti vložkov varovalk od 1250 A do 4800 A (vložki glavnih varovalk).

General Information

• Status: Published
• Publication Date: 23-Sep-2013
• ICS: 29.120.50 - Fuses and other overcurrent protection devices
• Technical Committee: EVA - Fuses
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 10-Sep-2013
• Due Date: 15-Nov-2013
• Completion Date: 24-Sep-2013
• 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: 2014/35/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
• Ref Project: CEN/TR 15133:2005 - Nomenclature - Collective terms and codes for groups of medical devices

Relations

• Replaces: SIST HD 60269-2:2010 - Low-voltage fuses - 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 60269-2:2010, modified)
• Effective Date: 01-Nov-2013
• Revised: SIST HD 60269-2:2010 - Low-voltage fuses - 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 60269-2:2010, modified)
• Effective Date: 06-May-2014
• Amended By: SIST HD 60269-2:2013/A1:2023 - Low-voltage fuses - Part 2: Supplementary requirements for fuses for use by authorized persons (fuses mainly for industrial application) - Examples of standardized systems of fuses A to K (IEC 60269-2:2013/A1:2016)
• Effective Date: 23-Jun-2015
• Amended By: SIST HD 60269-2:2013/oprA2:2022 - Amendment 2 - Low-voltage fuses - Part 2: Supplementary requirements for fuses for use by authorized persons (fuses mainly for industrial application) - Examples of standardized systems of fuses A to K
• Effective Date: 01-Jun-2021
• Replaces: SIST HD 60269-2:2010 - Low-voltage fuses - 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 60269-2:2010, modified)
• Effective Date: 07-Jun-2022

Standards Content (Sample)

SLOVENSKI STANDARD
SIST HD 60269-2:2013
01-november-2013
1DGRPHãþD
SIST HD 60269-2:2010
Nizkonapetostne varovalke - 2. del: Dodatne zahteve za varovalke, ki jih
uporabljajo strokovne osebe (uporaba varovalk zlasti v industriji) - Primeri tipov
standardiziranih varovalk od A do K (IEC 60269-2:2013, spremenjen)
Low-voltage fuses - Part 2: Supplementary requirements for fuses for use by authorized
persons (fuses mainly for industrial application) - Examples of standardized systems of
fuses A to K (IEC 60269-2:2013, modified)
Fusibles Basse Tension - Partie 2: Exigences supplémentaires pour les fusibles destinés
à être utilisés par des personnes habilitées (fusibles pour usages essentiellement
industriels) - Exemples de systèmes de fusibles normalisés A à K (IEC 60269-
2:2013,modifiziert)
Fusibles Basse Tension - Partie 2: Exigences supplémentaires pour les fusibles destinés
à être utilisés par des personnes habilitées (fusibles pour usages essentiellement
industriels) - Exemples de systèmes de fusibles normalisés A à K (CEI 60269-2:2013,
modifiée)
Ta slovenski standard je istoveten z: HD 60269-2:2013
ICS:
29.120.50 9DURYDONHLQGUXJD Fuses and other overcurrent
PHGWRNRYQD]DãþLWD protection devices
SIST HD 60269-2:2013 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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

SIST HD 60269-2:2013

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

SIST HD 60269-2:2013

HARMONIZATION DOCUMENT
HD 60269-2

DOCUMENT D'HARMONISATION
September 2013
HARMONISIERUNGSDOKUMENT

ICS 29.120.50 Supersedes HD 60269-2:2010


English version


Low-voltage fuses -
Part 2: Supplementary requirements for fuses for use by authorized
persons (fuses mainly for industrial application) -
Examples of standardized systems of fuses A to K
(IEC 60269-2:2013, modified)


Fusibles basse tension -  Niederspannungssicherungen -
Partie 2: Exigences supplémentaires pour Teil 2: Zusätzliche Anforderungen an
les fusibles destinés à être utilisés par des Sicherungen zum Gebrauch durch
personnes habilitées (fusibles pour Elektrofachkräfte bzw. elektrotechnisch
usages essentiellement industriels) - unterwiesene Personen (Sicherungen
Exemples de systèmes de fusibles überwiegend für den industriellen
normalisés A à K Gebrauch) -
(CEI 60269-2:2013, modifiée) Beispiele für genormte
Sicherungssysteme A bis K
(IEC 60269-2:2013, modifiziert)



This Harmonization Document was approved by CENELEC on 2013-08-15. CENELEC members are bound to
comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for implementation of this
Harmonization Document at national level.

Up-to-date lists and bibliographical references concerning such national implementations may be obtained on
application to the CEN-CENELEC Management Centre or to any CENELEC member.

This Harmonization Document exists in three official versions (English, French, German).

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, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom.

CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung

CEN-CENELEC Management Centre: Avenue Marnix 17, B - 1000 Brussels


© 2013 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. HD 60269-2:2013 E

---------------------- Page: 3 ----------------------

SIST HD 60269-2:2013
HD 60269-2:2013 - 2 -

Contents Page

Foreword . 3
1 Modification to 1.1 "Scope" . 4
2 Modification to 6.2 "Marking of fuse-links" in 'Fuse system A – Fuses with fuse-links
with blade contacts (NH fuse system)' . 4
3 Modification to 8.5.5.1 "Verification of the peak withstand current of a fuse-base" in
'Fuse system A – Fuses with fuse-links with blade contacts (NH fuse system)' . 4
Annex ZA (normative) Normative references to international publications with their

corresponding European publications . 5

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

SIST HD 60269-2:2013
- 3 - HD 60269-2:2013
Foreword
The text of document 32B/611/FDIS, future edition 5 of IEC 60269-2:2013, prepared by SC 32B,
"Low-voltage fuses", of IEC/TC 32, "Fuses" was submitted to the IEC-CENELEC parallel vote and
approved by CENELEC as HD 60269-2:2013.
A draft amendment, which covers common modifications to IEC 60269-2:2013, was prepared by
CLC/SR 32B "Low-voltage fuses" and approved by CENELEC.
The following dates are fixed:
(dop) 2014-08-15
• latest date by which this document has to be
implemented at national level
by publication of an identical
national standard or by endorsement
• latest date by which the national standards conflicting (dow) 2016-08-15
with this document have to be withdrawn
This document supersedes HD 60269-2:2010.
HD 60269-2:2013 includes the following significant technical changes with respect to HD 60269-2:2010:
a) fuse systems A and B: modified values for the power dissipation of NH aM fuse-links;
b) fuse systems A and B: introduction of dimension r for NH fuse-links;
c) addition of new fuse system K: gK fuse-links with contacts for bolted connections.
This part is to be used in conjunction with EN 60269-1:2007 + A1:2009, Low-voltage fuses – Part 1:
General requirements.
This Part 2 supplements or modifies the corresponding clauses or subclauses of Part 1.
Where no change is necessary, this Part 2 indicates that the relevant clause or subclause applies.
Tables and figures which are additional to those in Part 1 are numbered starting from 101 in fuse system
A, from 201 in fuse system B, etc. Additional annexes are numbered AA, BB, etc.
Clauses, subclauses, notes, tables, figures and annexes which are additional to those in
IEC 60269-2:2013 are prefixed “Z”.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CENELEC [and/or CEN] shall not be held responsible for identifying any or all such patent
rights.
This standard covers the Principle Elements of the Safety Objectives for Electrical Equipment Designed
for Use within Certain Voltage Limits (LVD - 2006/95/EC).

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

SIST HD 60269-2:2013
HD 60269-2:2013 - 4 -
Endorsement notice
The text of the International Standard IEC 60269-2:2013 was approved by CENELEC as a Harmonisation
Document with agreed common modifications.
In the official version, for Bibliography, the following notes have to be added for the standards indicated:
IEC 60060-1 NOTE  Harmonised as EN 60060-1.
IEC 60060-2 NOTE  Harmonised as EN 60060-2.
IEC 60060-3 NOTE  Harmonised as EN 60060-3.
IEC 60529 NOTE  Harmonised as EN 60529.
IEC 60672-1 NOTE  Harmonised as EN 60672-1.
IEC 60672-2 NOTE  Harmonised as EN 60672-2.
IEC 60672-3 NOTE  Harmonised as EN 60672-3.
IEC 62262 NOTE  Harmonised as EN 62262.
ISO 898-1 NOTE  Harmonised as EN ISO 898-1.
ISO 1207 NOTE  Harmonised as EN ISO 1207.
ISO 4589-1 NOTE  Harmonised as EN ISO 4589-1.
COMMON MODIFICATIONS
1 Modification to 1.1 "Scope"
Replace the note by the following:
The following fuse systems are standardized systems in respect to their safety aspects. The National
Committees shall select at least one complete fuse system of this European Standard for their national
standards. The time current characteristics "gD" and "gN" are only relevant for the fuse system H.
2 Modification to 6.2 "Marking of fuse-links" in 'Fuse system A – Fuses with
fuse-links with blade contacts (NH fuse system)'
Replace the first sentence after the table by the following:
Fuse-links with isolated gripping-lugs shall be marked in a place visible at the front with the graphical
symbol of a gripping-lug in a square.
3 Modification to 8.5.5.1 "Verification of the peak withstand current of a fuse-
base" in 'Fuse system A – Fuses with fuse-links with blade contacts (NH fuse
system)'
Add the following at the end of the first sentence:
... or if the minimum withdrawal forces according to 8.11 are exceeded.

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

SIST HD 60269-2:2013
- 5 - HD 60269-2:2013
Annex ZA
(normative)

Normative references to international publications
with their corresponding European publications
The following documents, in whole or in part, are normatively referenced in this document and are
indispensable for its application. 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 60112 - Method for the determination of the proof and EN 60112 -
the comparative tracking indices of solid
insulating materials
IEC 60269-1 - Low-voltage fuses EN 60269-1 -
Part 1: General requirements
IEC 60664-1 - Insulation coordination for equipment within EN 60664-1 -
low-voltage systems
Part 1: Principles, requirements and tests
IEC 60999 Series Connecting devices - Electrical copper EN 60999 Series
conductors - Safety requirements for screw-
type and screwless-type clamping units
IEC 60999-1 - Connecting devices - Electrical copper EN 60999-1 -
conductors - Safety requirements for screw-
type and screwless-type clamping units
Part 1: General requirements and particular
requirements for clamping units for
conductors from 0,2 mm² up to 35 mm²
(included)
IEC 60999-2 - Connecting devices - Electrical copper EN 60999-2 -
conductors - Safety requirements for screw-
type and screwless-type clamping units
Part 2: Particular requirements for clamping
units for conductors above 35 mm² up to 300
mm² (included)
ISO 6988 - Metallic and other non-organic coatings - EN ISO 6988 -
Sulfur dioxide test with general condensation
of moisture

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

SIST HD 60269-2:2013

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

SIST HD 60269-2:2013




IEC 60269-2

®


Edition 5.0 2013-07




INTERNATIONAL



STANDARD




NORME



INTERNATIONALE
colour

inside










Low-voltage fuses –

Part 2: Supplementary requirements for fuses for use by authorized persons

(fuses mainly for industrial application) – Examples of standardized systems of


fuses A to K



Fusibles basse tension –


Partie 2: Exigences supplémentaires pour les fusibles destinés à être utilisés par

des personnes habilitées (fusibles pour usages essentiellement industriels) –

Exemples de systèmes de fusibles normalisés A à K










INTERNATIONAL

ELECTROTECHNICAL

COMMISSION


COMMISSION

ELECTROTECHNIQUE

PRICE CODE
INTERNATIONALE

CODE PRIX XH


ICS 29.120.50 ISBN 978-2-8322-0898-4



Warning! Make sure that you obtained this publication from an authorized distributor.

Attention! Veuillez vous assurer que vous avez obtenu cette publication via un distributeur agréé.

® Registered trademark of the International Electrotechnical Commission
Marque déposée de la Commission Electrotechnique Internationale

---------------------- Page: 9 ----------------------

SIST HD 60269-2:2013
– 2 – 60269-2 © IEC:2013
CONTENTS
FOREWORD . 16
INTRODUCTION . 18
1 General scope . 19
1.1 Scope . 19
1.2 Normative references . 20

Fuse system A – Fuses with fuse-links with blade contacts (NH fuse system) . 21
1 General . 21
1.1 Scope . 21
2 Terms and definitions . 21
3 Conditions for operation in service. 22
4 Classification . 22
5 Characteristics of fuses . 22
5.2 Rated voltage . 22
5.3.1 Rated current of the fuse-link. 22
5.3.2 Rated current of the fuse-holder . 22
5.5 Rated power dissipation of a fuse-link and rated acceptable power
dissipation of a fuse-holder . 22
5.6 Limits of time-current characteristics . 22
5.6.1 Time-current characteristics, time-current zones and overload curves . 22
5.6.2 Conventional times and currents . 22
5.6.3 Gates . 23
5.7.2 Rated breaking capacity . 23
6 Markings . 23
6.1 Markings of fuse-holders . 23
6.2 Markings of fuse-links. 24
7 Standard conditions for construction . 24
7.1 Mechanical design . 24
7.1.2 Connections, including terminals . 24
7.1.3 Fuse-contacts . 25
7.1.6 Construction of fuse-bases . 25
7.1.7 Construction of a fuse-link . 25
7.2 Insulating properties and suitability for insulation . 26
2
7.7 I t characteristics . 26
7.8 Overcurrent discrimination of fuse-links . 27
7.9 Protection against electric shock . 27
8 Tests . 28
8.1.4 Arrangement of the fuse and dimensions . 28
8.1.6 Testing of fuse-holders . 28
8.2.4 Acceptability of test results . 29
8.2.5 Resistance to tracking . 29
8.3 Verification of temperature rise and power dissipation . 29
8.3.1 Arrangement of the fuse . 29
8.3.2 Measurement of the temperature rise . 29
8.5.5 Test method . 30

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

SIST HD 60269-2:2013
60269-2 © IEC:2013 – 3 –
8.5.8 Acceptability of test results . 31
8.7.4 Verification of overcurrent discrimination . 31
8.9 Verification of resistance to heat . 32
8.9.1 Fuse-base . 33
8.9.2 Fuse-links with gripping-lugs of moulded material or of metal fixed in
moulded material . 33
8.10 Verification of non-deterioration of contacts . 34
8.10.1 Arrangement of the fuse . 34
8.10.2 Test method . 36
8.10.3 Acceptability of test results . 37
8.11 Mechanical and miscellaneous tests . 39
FIGURES . 42
Annex AA (informative) Special test for cable overload protection . 61
AA.1 Arrangement of the fuse . 61
AA.2 Test method and acceptability of test results . 61

Fuse system B – Fuses with striker fuse-links with blade contacts (NH fuse
system) . 62
1 General . 62
1.1 Scope . 62
2 Terms and definitions . 62
3 Conditions for operation in service. 62
4 Classification . 62
5 Characteristics of fuses . 62
5.2 Rated voltage . 62
5.3.1 Rated current of the fuse-link. 63
5.3.2 Rated current of the fuse-holder . 63
5.5 Rated power dissipation of a fuse-link and rated acceptable power
dissipation of a fuse-holder . 63
5.6 Limits of time-current characteristics . 63
5.7.2 Rated breaking capacity . 63
6 Markings . 63
7 Standard conditions for construction . 63
7.1 Mechanical design . 63
7.1.2 Connections, including terminals . 63
7.1.3 Fuse-contacts . 63
7.1.7 Construction of a fuse-link . 64
7.2 Insulating properties and suitability for insulation . 64
2
7.7 I t characteristics . 64
7.8 Overcurrent discrimination of "gG" fuse-links . 64
7.9 Protection against electric shock . 64
8 Tests . 64
8.1.6 Testing of fuse-holders . 64
8.3 Verification of temperature rise and power dissipation . 64
8.7.4 Verification of overcurrent discrimination . 65
8.9 Verification of resistance to heat . 65
8.9.1 Fuse-base . 65

---------------------- Page: 11 ----------------------

SIST HD 60269-2:2013
– 4 – 60269-2 © IEC:2013
FIGURES . 67

Fuse system C – Fuse-rails (NH fuse system) . 74
1 General . 74
1.1 Scope . 74
2 Terms and definitions . 74
3 Conditions for operation in service. 74
4 Classification . 74
5 Characteristics of fuses . 74
5.2 Rated voltage . 74
5.3.2 Rated current . 74
5.5.1 Rated acceptable power dissipation . 74
6 Markings . 75
7 Standard conditions for construction . 75
7.1 Mechanical design . 75
7.1.2 Connections, including terminals . 75
7.2 Insulating properties . 75
8 Tests . 75
8.1.6 Testing of fuse-holders . 75
8.3 Verification of temperature rise and power dissipation . 76
8.3.1 Arrangement of the fuse . 76
8.9 Verification of resistance to heat . 77
8.9.1 Fuse-base . 77
8.10 Verification of non-deterioration of contacts . 77
8.10.1 Arrangement of the fuse . 77
FIGURES . 79

Fuse system D – Fuse-bases for busbar mounting (40 mm system) (NH fuse

system) . 84
1 General . 84
1.1 Scope . 84
2 Terms and definitions . 84
3 Conditions for operation in service. 84
4 Classification . 84
5 Characteristics of fuses . 84
5.2 Rated voltage . 84
5.3.2 Rated current . 85
5.5.2 Rated acceptable power dissipation of tandem fuse-bases . 85
6 Markings . 85
7 Standard conditions for construction . 85
7.1 Mechanical design . 85
7.1.2 Connections, including terminals . 85
7.1.5 Construction of a fuse-base for busbar mounting . 86
7.2 Insulating properties and suitability for insulation . 86
8 Tests . 86

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

SIST HD 60269-2:2013
60269-2 © IEC:2013 – 5 –
8.3 Verification of temperature rise and power dissipation . 86
8.3.1 Arrangement of the fuse . 86
8.9.1 Fuse-base . 87
8.10 Verification of non-deterioration of contacts . 87
8.10.1 Arrangement of the fuse . 87
8.10.2 Test method . 88
8.11 Mechanical and miscellaneous tests . 88
FIGURES . 89

Fuse system E – Fuses with fuse-links for bolted connections (BS bolted fuse

system) . 96
1 General . 96
1.1 Scope . 96
2 Terms and definitions .
...