SIST HD 60269-3-1:2006

SLOVENSKI SIST HD 60269-3-1:2006

STANDARD
januar 2006
Nizkonapetostne varovalke – 3-1. del: Dodatne zahteve za varovalke, ki jih
uporabljajo nestrokovne osebe (uporaba varovalk zlasti v gospodinjstvu in
podobnih okoljih) – Razdelki od I do IV: Primeri tipov standardiziranih
varovalk (IEC 60269-3-1:2004, spremenjen)
(istoveten HD 60269-3-1:2004)
Low-voltage fuses - Part 3-1: Supplementary requirements for fuses for use by
unskilled persons (fuses mainly for household and similar applications) - Sections I
to IV: Examples of types of standardized fuses (IEC 60269-3-1:2004, modified)
ICS 29.120.50 Referenčna številka
SIST HD 60269-3-1:2006(en)
©  Standard je založil in izdal Slovenski inštitut za standardizacijo. Razmnoževanje ali kopiranje celote ali delov tega dokumenta ni dovoljeno

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HARMONIZATION DOCUMENT HD 60269-3-1
DOCUMENT D'HARMONISATION
HARMONISIERUNGSDOKUMENT December 2004

ICS 29.120.50 Supersedes HD 630.3.1 S3:2002


English version


Low-voltage fuses
Part 3-1: Supplementary requirements for fuses
for use by unskilled persons
(fuses mainly for household and similar applications)
Sections I to IV: Examples of types of standardized fuses
(IEC 60269-3-1:2004, modified)


Fusibles basse tension Niederspannungssicherungen
Partie 3-1: Règles supplémentaires Teil 3-1: Zusätzliche Anforderungen
pour les fusibles destinés à être utilisés an Sicherungen zum Gebrauch durch Laien
par des personnes non qualifiées (Sicherungen überwiegend
(fusibles pour usages essentiellement für Hausinstallationen
domestiques et analogues) und ähnliche Anwendungen)
Sections I à IV: Exemples de types Hauptabschnitte I bis IV: Beispiele
de fusibles normalisés von genormten Sicherungstypen
(CEI 60269-3-1:2004, modifiée) (IEC 60269-3-1:2004, modifiziert)


This Harmonization Document was approved by CENELEC on 2004-11-01. CENELEC members are
bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for
implementation of this Harmonization Document on a national level.

Up-to-date lists and bibliographical references concerning such national implementation may be obtained on
application to the Central Secretariat 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, 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


© 2004 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.

Ref. No. HD 60269-3-1:2004 E

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HD 60269-3-1:2004 – 2 –
Foreword

The text of the International Standard IEC 60269-3-1:2004, prepared by SC 32B, Low-voltage
fuses, of IEC TC 32, Fuses, together with the common modifications prepared by the CENELEC
Reporting Secretariat SR 32B, was submitted to the Unique Acceptance Procedure and was
approved by CENELEC as HD 60269-3-1 on 2004-11-01.

This Harmonization Document supersedes HD 630.3.1 S3:2002.

It includes the following significant technical change:
- introduction of preferred rated currents 3 A and 13 A in section IV (BS plugtop fuse system).

This Harmonization Document is to be read in conjunction with EN 60269-1 and EN 60269-3.

The following dates were fixed:

- latest date by which the existence of the HD
 has to be announced at national level (doa) 2005-05-01

- latest date by which the HD has to be implemented
 at national level by publication of a harmonized
 national standard or by endorsement (dop) 2005-11-01

- latest date by which the national standards conflicting
 with the HD have to be withdrawn (dow) 2007-11-01

Annex ZA has been added by CENELEC.

__________

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– 3 – HD 60269-3-1:2004
Endorsement notice
The text of the International Standard IEC 60269-3-1:2004 was approved by CENELEC as a
Harmonization Document with agreed common modifications as given below.

COMMON MODIFICATIONS

1 General

Replace note 2 by:

NOTE 2  The following fuse systems are standardized systems in respect to their safety aspects. The National
Committees shall select at least one complete section of this standard for their standards. Colour codes are not
specified for each fuse system. Where colour codes are indicated, they apply only to that particular fuse system.

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HD 60269-3-1:2004 – 4 –
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 60529 1989 Degrees of protection provided by EN 60529 1991
enclosures (IP Code) + corr. May 1993

IEC 60664 Series Insulation coordination for equipment EN 60664 Series
within low-voltage systems

IEC 60898 Series Electrical accessories - Circuit-breakers EN 60898 Series
for overcurrent protection for household
and similar installations

IEC 60999 Series Connecting devices - Electrical copper EN 60999 Series
conductors - Safety requirements for
screw-type and screwless-type clamping
units

1)
ISO 228-1 - Pipe threads where pressure-tight joints - -
are not made on the threads
Part 1: Dimensions, tolerances and
designation

1)
ISO 228-2 - Part 2: Verification by means of limit - -
gauges

ISO 965-1 1998 ISO general-purpose metric screw - -
threads - Tolerances
Part 1: Principles and basic data


1)
Undated reference.

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NORME CEI
INTERNATIONALE
IEC



60269-3-1
INTERNATIONAL


Deuxième édition
STANDARD

Second edition

2004-07


Fusibles basse tension –
Partie 3-1:
Règles supplémentaires pour les fusibles destinés
à être utilisés par des personnes non qualifiées
(fusibles pour usages essentiellement
domestiques et analogues) –
Sections I à IV: Exemples de types de fusibles
normalisés

Low-voltage fuses –
Part 3-1:
Supplementary requirements for fuses
for use by unskilled persons (fuses mainly
for household and similar applications) –
Sections I to IV: Examples of types of
standardized fuses
 IEC 2004 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: +41 22 919 02 11 Telefax: +41 22 919 03 00 E-mail: inmail@iec.ch Web: www.iec.ch
CODE PRIX
XF
PRICE CODE
Commission Electrotechnique Internationale
International Electrotechnical Commission
МеждународнаяЭлектротехническаяКомиссия
Pour prix, voir catalogue en vigueur
For price, see current catalogue

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60269-3-1  IEC:2004 – 3 –
CONTENTS

FOREWORD.8
EXPLANATORY NOTE .10

1 General.19
2 Normative references.19

Section I – D-type fuses
1.1 Scope.21
5 Characteristics of fuses .21
5.2 Rated voltage.21
5.3.1 Rated current of the fuse-link.21
5.3.2 Rated current of the fuse-holder .21
5.5 Rated power dissipation of a fuse-link and rated acceptable power
dissipation of a fuse-holder.21
5.6 Limits of time-current characteristics.23
5.6.1 Time-current characteristics, time-current zones and overload curves .23
5.6.2 Conventional times and currents.23
5.6.3 Gates.23
5.7 Breaking range and breaking capacity .25
5.7.2 Rated breaking capacity .25
6 Markings.25
7 Standard conditions for construction .25
7.1 Mechanical design.25
7.1.2 Connections including terminals.25
7.1.3 Fuse-contacts.27
7.1.4 Non-interchangeability .27
7.1.5 Construction of a fuse-base .27
7.1.6 Construction of a fuse-carrier.27
7.1.7 Construction of a fuse-link .29
7.1.8 Construction of a gauge-piece .29
7.2 Insulating properties.29
7.3 Temperature rise, power dissipation of the fuse-link and acceptable power
dissipation of the fuse-holder .31
2
7.7  I t characteristics .31
2
7.7.1 Pre-arcing I t values .31
2
7.7.2 Operating I t values .31
7.8 Overcurrent discrimination of "gG" fuse-links .31
7.9 Protection against electric shock.33
8 Tests.33
8.1.4 Arrangement of the fuse and dimensions .33
8.1.5.1 Complete tests.33
8.1.5.2 Testing of fuse-links of a homogeneous series.35
8.2 Verification of insulating properties .35
8.2.1 Arrangement of the fuse-holder .35
8.2.6 Creepage distances, clearances and distances through sealing compound.35
8.2.6.1 Test method.35
8.2.6.2 Acceptability of test results .37

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60269-3-1  IEC:2004 – 5 –
8.3 Verification of temperature rise and power dissipation .37
8.3.1 Arrangement of the fuse .37
8.3.3 Measurement of the power dissipation of the fuse-link .37
8.3.4.1 Temperature rise of the fuse-holder .37
8.3.5 Acceptability of test results .37
8.4.3.1 Verification of conventional non-fusing and fusing current.37
8.4.3.2 Verification of rated current of fuse-links.37
8.4.3.5 Conventional cable overload protection .39
8.4.3.6 Operation of indicating devices and strikers, if any .39
8.5.2 Characteristics of the test circuit.39
8.5.8 Acceptability of test results .39
8.7.4 Verification of overcurrent discrimination .39
8.9 Verification of resistance to heat.41
8.9.1 Fuse-base.41
8.9.1.1 Test arrangement.41
8.9.1.2 Test method.43
8.9.1.3 Acceptability of test results .43
8.9.2 Fuse-carrier.43
8.9.2.1 Test arrangement.43
8.9.2.2 Test method.45
8.9.2.3 Acceptability of test results .45
8.10 Verification of non-deterioration of contacts .45
8.10.1 Arrangement of the fuse .45
8.10.2 Test method.45
8.10.3 Acceptability of test results .47
8.11 Mechanical and miscellaneous tests .47
8.11.1 Mechanical strength.47
8.11.1.1 Mechanical strength of the gauge-piece.47
8.11.1.2 Mechanical strength of the fuse-carrier .49
8.11.1.3 Mechanical strength of the fuse-link.49
8.11.1.4 Mechanical strength of the fuse .49
8.11.2.4 Resistance to storage at elevated temperature .51
8.11.2.4.1 Test arrangement.51
8.11.2.4.2 Test method.51
8.11.2.4.3 Acceptability of test results .51
Figures1 to 10.53
Annex A (informative) Special test for cable overload protection .115

Section IIA – Cylindrical fuses type A (NF cylindrical fuse system)
1.1  Scope.117
2 Definitions.117
5 Characteristics of fuses .117
5.2 Rated voltage.117
5.3.1 Rated current of the fuse-link.117
5.3.2 Rated current of the fuse-holder .117
5.5  Rated power dissipation of a fuse-link and rated acceptable power dissipation
of a fuse-holder .117
5.6.2 Conventional times and currents.119
5.6.3 Gates.119

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60269-3-1  IEC:2004 – 7 –
7 Standard conditions for construction .119
7.1 Mechanical design.119
7.1.2 Connections including terminals.121
7.2 Insulating properties.121
2
7.7 I t characteristics .123
2
7.7.1 Pre-arcing I t values .123
2
7.7.2 Operating I t values .123
7.8 Overcurrent discrimination of "gG" fuse-links .123
7.9 Protection against electric shock.125
8 Tests.125
8.1.5.1 Complete tests.125
8.1.6 Testing of fuse-holders.125
8.3.1 Arrangement of the fuse .127
8.3.3 Measurement of the power dissipation of the fuse-link .127
8.3.4.1 Temperature rise of the fuse-holder .129
8.4 Verification of operation.129
8.4.1 Arrangement of the fuse .129
8.4.3.6 Operation of indicating devices and strikers, if any .129
8.5 Verification of the breaking capacity .129
8.5.1 Arrangement of the fuse .129
8.5.8 Acceptability of test results .131
8.7.4 Verification of overcurrent discrimination .131
8.8 Verification of the degree of protection of enclosures.131
8.8.1 Verification of protection against electric shock.131
8.9 Verification of resistance to heat.131
8.10 Verification of non-deterioration of contacts .133
8.10.1 Arrangement of the fuse .133
8.10.2 Test method.133
8.10.3 Acceptability of test results .133
8.11.1.1 Mechanical strength of the fuse-holder .135
8.11.1.1.1 Verification of resistance to shock .135
8.11.1.1.1.1 Test apparatus. 135
8.11.1.1.1.2 Test procedure . 135
8.11.1.1.2 Verification of the constructional requirements.137
8.12 Verification of the reliability of terminals .139
Figures 10 to 16.141

Section IIB – Cylindrical fuses type B (BS cylindrical fuse system)
1.1 Scope.157
5 Characteristics of fuses .157
5.3 Rated current.157
5.3.1 Rated current of the fuse-link.157
5.3.2 Rated current of the fuse-holder .157
5.5 Rated power dissipation of a fuse-link and rated acceptable power
dissipation of a fuse-holder.157
5.6 Limits of time-current characteristics.157
5.6.1 Time-current characteristics, time-current curves and overload curves .157
5.6.2 Conventional times and currents.157
5.7 Breaking range and breaking capacity .159
5.7.2 Rated breaking capacity .159

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60269-3-1  IEC:2004 – 9 –
7 Standard conditions for construction .159
7.1 Mechanical design.159
7.1.2 Connections including terminals.159
7.9 Protection against electric shock.159
8 Tests.159
8.1 General.159
8.1.4 Arrangement of the fuse .159
8.3 Verification of temperature rise and power dissipation .159
8.3.1 Arrangement of the fuse .159
8.3.3 Measurement of the power dissipation of the fuse-link .159
8.4 Verification of operation.159
8.4.1 Arrangement of fuse.159
8.5 Verification of breaking capacity .159
8.5.1 Arrangement of the fuse .159
8.5.8 Acceptability of test results .161
8.10 Verification of non-deterioration of contacts .161
8.10.1 Arrangement of the fuse .161
8.10.2 Test method.161
8.10.3 Acceptability of test results .161
Figures 17 to 22.163

Section IIC – Cylindrical fuses type C (Italian cylindrical fuse system)
1.1 Scope.179
5 Characteristics of fuses .179
5.3.1 Rated current of the fuse-link.179
5.3.2  Rated current of the fuse-holder .179
5.5 Rated power dissipation of a fuse-link and rated acceptable power dissipation
of a fuse-holder .179
5.6 Limits of time-current characteristics.181
5.6.1 Time-current characteristics, time-current zones and overload curves .181
5.6.2 Conventional times and currents.181
5.6.3 Gates.181
7 Standard conditions for construction .183
7.1 Mechanical design.183
7.1.2 Connections including terminals.183
7.2 Insulating properties.183
7.3 Temperature rise, power dissipation of the fuse-link and acceptable power
dissipation of the fuse-holder .183
2
7.7  I t characteristics .183
2
7.7.1 Minimum pre-arcing I t values at 0,01 s .183
2
7.7.2 Maximum operating I t values at 0,01 s.185
8 Tests.185
8.1.6 Testing of the fuse-holder .185
8.3 Verification of temperature rise and power dissipation .185
8.3.1 Arrangement of the fuse .185
8.3.3 Measurement of the power dissipation of the fuse-link .185
8.3.4.1 Temperature rise of the fuse-holder .
...