IEC 60282-1:2020

IEC 60282-1 ®
Edition 8.0 2020-04
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
High-voltage fuses –
Part 1: Current-limiting fuses

Fusibles à haute tension –
Partie 1: Fusibles limiteurs de courant

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IEC 60282-1 ®
Edition 8.0 2020-04
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
High-voltage fuses –
Part 1: Current-limiting fuses

Fusibles à haute tension –
Partie 1: Fusibles limiteurs de courant

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 29.120.50 ISBN 978-2-8322-8088-1

– 2 – IEC 60282-1:2020 © IEC 2020
CONTENTS
FOREWORD . 6
1 Scope . 8
2 Normative references . 8
3 Terms and definitions . 8
3.1 Electrical characteristics . 8
3.2 Fuses and their component parts . 12
3.3 Additional terms . 14
4 Normal and special service conditions . 16
4.1 Normal service conditions . 16
4.2 Special service conditions . 17
4.2.1 General . 17
4.2.2 Altitude . 17
4.3 Environmental behaviour . 18
5 Ratings and characteristics . 18
5.1 General . 18
5.2 Ratings and characteristics that are applicable to all fuses . 18
5.2.1 Rated voltage (U ) . 18
r
5.2.2 Rated current of a fuse-base . 19
5.2.3 Rated current of a fuse-link (I ) . 19
r
5.2.4 Rated insulation level (of a fuse-base) . 19
5.2.5 Rated breaking capacity . 21
5.2.6 Rated frequency . 21
5.2.7 Temperature limits . 21
5.2.8 Limits of switching voltage . 22
5.2.9 Time-current characteristics . 24
5.2.10 Cut-off characteristic . 25
5.2.11 I t characteristics . 25
5.2.12 Power dissipation . 25
5.3 Ratings and characteristics of particular fuse-link types and applications . 25
5.3.1 Fuse-links for transformer applications . 25
5.3.2 Fuse-links for motor circuit applications . 26
5.3.3 Fuse-links for capacitor protection . 26
5.3.4 Fuses fitted with indicating devices . 26
5.3.5 Back-Up fuses intended for use in a switch-fuse combination according
to IEC 62271-105 . 28
5.3.6 Allowable continuous current of a fuse-link (I ) . 28
a
5.3.7 Maximum enclosure current (I ) . 28
fep
6 Design, construction and performance . 29
6.1 General requirements with respect to fuse operation . 29
6.1.1 General . 29
6.1.2 Standard conditions of use . 29
6.1.3 Standard conditions of behaviour . 30
6.2 Identifying markings . 30
6.3 Dimensions . 31
7 Type tests performed on all fuses . 31
7.1 Conditions for making the tests . 31

7.2 List of type tests . 32
7.3 Common test practices for all type tests . 32
7.3.1 General . 32
7.3.2 Mounting of fuse-link . 32
7.3.3 Condition of device to be tested . 32
7.3.4 Mounting of fuses . 32
7.4 Dielectric tests . 32
7.4.1 Test practices . 32
7.4.2 Application of test voltage for impulse and power-frequency test . 33
7.4.3 Atmospheric conditions during test . 33
7.4.4 Lightning impulse voltage dry tests . 33
7.4.5 Power-frequency voltage dry tests . 34
7.4.6 Power-frequency wet tests . 34
7.5 Temperature-rise tests and power-dissipation measurement . 34
7.5.1 Test practices . 34
7.5.2 Measurement of temperature . 35
7.5.3 Measurement of power dissipation . 36
7.6 Breaking tests . 36
7.6.1 Test practices . 36
7.6.2 Test procedure . 46
7.6.3 Alternative test methods for Test Duty 3 . 48
7.6.4 Breaking tests for fuse-links of a homogeneous series . 51
7.6.5 Acceptance of a homogeneous series of Back-Up fuse-links by

interpolation. 53
7.6.6 Acceptance of a homogeneous series of fuse-links of different lengths . 53
7.7 Tests for time-current characteristics . 54
7.7.1 Test practices . 54
7.7.2 Test procedures . 54
7.8 Electromagnetic compatibility (EMC) . 54
8 Type tests for particular fuse-link types and applications . 55
8.1 General .
...