High-voltage fuses - Part 1: Current-limiting fuses

IEC 60282-1:2020 applies to all types of high-voltage current-limiting fuses designed for use outdoors or indoors on alternating current systems of 50 Hz and 60 Hz and of rated voltages exceeding 1 000 V.
This eighth edition cancels and replaces the seventh edition published in 2009.
This edition includes the following significant technical changes with respect to the previous edition:
– additional information concerning thermally operated strikers;
– the division of ratings, characteristics and type tests into those applicable to all fuses and those applicable to particular fuse-link types and applications;
– adjustment of Series II voltages and tests to meet present North American standard system voltages and applications;
– clarification of requirements for fuse-links used in surrounding temperatures above 40 °C; and
– clarification of homogeneous requirements for fuse-links containing one element.

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

IEC 60282-1:2020 s'applique à tous les types de fusibles à haute tension limiteurs de courant destinés à être utilisés à l'extérieur ou à l'intérieur sur des réseaux à courant alternatif 50 Hz et 60 Hz et dont les tensions assignées sont supérieures à 1 000 V.
Cette huitième édition annule et remplace la septième édition parue en 2009.
Cette édition inclut les modifications techniques majeures suivantes par rapport à l'édition précédente:
– des informations supplémentaires concernant les percuteurs thermiques;
– la division des valeurs assignées, des caractéristiques et des essais de type en un groupe qui s'applique à tous les fusibles et en un groupe qui s'applique à des types particuliers d'éléments de remplacement et des applications;
– le réglage des tensions de la Série II et les essais pour satisfaire aux tensions réseaux normalisées actuelles et aux applications d'Amérique du Nord;
– la clarification des exigences pour les éléments de remplacement utilisés avec des températures environnantes supérieures à 40 °C;
– et la clarification d'exigences homogènes pour les éléments de remplacement contenant un élément.

General Information

Status
Published
Publication Date
13-Apr-2020
Technical Committee
Current Stage
PPUB - Publication issued
Completion Date
14-Apr-2020
Ref Project

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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
IEC 60282-1:2020-04(en-fr)
---------------------- Page: 1 ----------------------
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---------------------- Page: 2 ----------------------
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

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: 3 ----------------------
– 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

5.2.2 Rated current of a fuse-base ......................................................................... 19

5.2.3 Rated current of a fuse-link (I ) ...................................................................... 19

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

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

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IEC 60282-1:2020 © IEC 2020 – 3 –

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 ................................................................................................................. 55

8.2 List of type tests ................................................................................................... 55

8.3 Tests required for a particular type of fuse or application ...................................... 55

8.3.1 Indicator tests (for fuses fitted with indicators) ............................................... 55

8.3.2 Striker tests (for fuses fitted with strikers) ...................................................... 56

8.3.3 Tests for Back-Up fuses for use in switch-fuse combination of

IEC 62271-105 .............................................................................................. 58

8.3.4 Liquid-tightness tests ..................................................................................... 59

8.4 Tests performed at the request of a user ............................................................... 64

8.4.1 Thermal shock tests for outdoor fuses ........................................................... 64

8.4.2 Waterproof test (ingress of moisture) for outdoor fuses .................................. 65

9 Routine tests ................................................................................................................. 65

Annex A (normative) Method of drawing the envelope of the prospective and transient

recovery voltage of a circuit and determining the representative parameters ......................... 66

A.1 Introduction ........................................................................................................... 66

A.2 Drawing the envelope ........................................................................................... 66

A.3 Determination of parameters ................................................................................. 66

Annex B (informative) Reasons which led to the choice of TRV values for Test Duties

1, 2 and 3 ............................................................................................................................. 68

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– 4 – IEC 60282-1:2020 © IEC 2020

Annex C (informative) Preferred arrangements for temperature-rise tests of liquid-

tight fuse-links ...................................................................................................................... 70

Annex D (informative) Types and dimensions of current-limiting fuse-links specified in

existing national standards ................................................................................................... 71

Annex E (normative) Requirements for certain types of fuse-links intended for use at

surrounding temperatures above 40 °C ................................................................................. 74

E.1 Types of fuse-link covered by this annex ............................................................... 74

E.1.1 General ......................................................................................................... 74

E.1.2 Covered fuse-link types ................................................................................. 74

E.1.3 Exempted fuse-links ...................................................................................... 74

E.1.4 Introduction ................................................................................................... 74

E.2 Definitions............................................................................................................. 75

E.3 Preferred MAT ratings ........................................................................................... 75

E.4 Specific service conditions .................................................................................... 75

E.5 Additional breaking test requirements ................................................................... 75

E.5.1 Test practices ................................................................................................ 75

E.5.2 Test procedure .............................................................................................. 76

E.5.3 Full-Range fuse Test Duty 3 tests .................................................................. 76

E.6 Full-Range fuse: determination of I current ......................................................... 77

Annex F (informative) Criteria for determining I testing validity ........................................... 78

F.1 Introduction ........................................................................................................... 78

F.2 Breaking processes .............................................................................................. 78

Bibliography .......................................................................................................................... 79

Figure 1 – Terminology ......................................................................................................... 13

Figure 2 – Permissible switching voltages for fuse-links of small current ratings

(Table 8) ............................................................................................................................... 24

Figure 3 – Various stages of the striker travel ....................................................................... 27

Figure 4 – Representation of a specified TRV by a two-parameter reference line and a

delay line .............................................................................................................................. 41

Figure 5 – Example of a two-parameter reference line for a TRV complying with the

conditions of the type test ..................................................................................................... 42

Figure 6 – Breaking tests – Arrangement of the equipment ................................................... 46

Figure 7 – Breaking tests – Typical circuit diagram for Test Duties 1 and 2 ........................... 46

Figure 8 – Breaking tests – Typical circuit diagram for Test Duty 3 ....................................... 47

Figure 9 – Breaking tests – Interpretation of oscillograms for Test Duty 1 ............................. 49

Figure 10 – Breaking tests – Interpretation of oscillograms for Test Duty 2 (calibration

traces as in a) of Figure 9) .................................................................................................... 50

Figure 11 – Breaking tests – Interpretation of oscillograms for Test Duty 3 ........................... 50

Figure 12 – Test sequence for switchgear type applications .................................................. 61

Figure 13 – Test sequence for transformer type applications ................................................ 62

Figure 14 – Test sequence for series a) test for transformer type applications ...................... 63

Figure 15 – Test sequence for series b) test for transformer type applications ...................... 64

Figure A.1 – Example of a two-parameter reference line for a TRV whose initial portion

is concave towards the left .................................................................................................... 67

Figure A.2 – Example of a two-parameter reference line for an exponential TRV .................. 67

Figure C.1 – Test tank for temperature-rise tests of liquid-tight fuses .................................... 70

---------------------- Page: 6 ----------------------
IEC 60282-1:2020 © IEC 2020 – 5 –

Figure C.2 – Details of clamping arrangement for fuse-link in the tank .................................. 70

Table 1 – Altitude correction factors – Dielectric withstand.................................................... 17

Table 2 – Altitude correction factors – Current-carrying capability ......................................... 17

Table 3 – Rated voltages ...................................................................................................... 19

Table 4 – Fuse-base rated insulation levels – Series I .......................................................... 20

Table 5 – Fuse-base rated insulation levels – Series II ......................................................... 20

Table 6 – Limits of temperature and temperature rise for components and materials............. 22

Table 7 – Maximum permissible switching voltages............................................................... 23

Table 8 – Maximum permissible switching voltages for certain fuse-links of small

current ratings ...................................................................................................................... 23

Table 9 – Striker mechanical characteristics ......................................................................... 27

Table 10 – Electrical connection to the test circuit – Conductor sizes .................................... 35

Table 11 – Breaking tests – Parameters ............................................................................... 39

Table 12 – Standard values of rated TRV for I – Series I rated voltages.............................. 43

Table 13 – Standard values of rated TRV for I – Series II rated voltages............................. 43

Table 14 – TRV for Test Duty 2 – Series I rated voltages ...................................................... 44

Table 15 – TRV for Test Duty 2 – Series II rated voltages ..................................................... 45

Table 16 – Breaking test requirements for fuse-links of a homogeneous series ..................... 52

---------------------- Page: 7 ----------------------
– 6 – IEC 60282-1:2020 © IEC 2020
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
HIGH-VOLTAGE FUSES –
Part 1: Current-limiting fuses
FOREWORD

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International Standard IEC 60282-1 has been prepared by subcommittee 32A: High-voltage

fuses, of IEC technical committee 32: Fuses.
This eighth edition cancels and replaces the seventh edition published in 2009.

This edition includes the following significant technical changes with respect to the previous

edition:
– additional information concerning thermally operated strikers;

– the division of ratings, characteristics and type tests into those applicable to all fuses and

those applicable to particular fuse-link types and applications;

– adjustment of Series II voltages and tests to meet present North American standard

system voltages and applications;

– clarification of requirements for fuse-links used in surrounding temperatures above 40 °C;

and
---------------------- Page: 8 ----------------------
IEC 60282-1:2020 © IEC 2020 – 7 –

– clarification of homogeneous requirements for fuse-links containing one element.

The text of this International Standard is based on the following documents:
FDIS Report on voting
32A/347/FDIS 32A/349/RVD

Full information on the voting for the approval of this International Standard can be found in

the report on voting indicated in the above table.

This document has been drafted in accordance with the ISO/IEC Directives, Part 2.

A list of all parts in the IEC 60282 series, published under the general title High-voltage fuses,

can be found on the IEC website.

The committee has decided that the contents of this document will remain unchanged until the

stability date indicated on the IEC website under "http://webstore.iec.ch" in the data related to

the specific document. At this date, the document will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
---------------------- Page: 9 ----------------------
– 8 – IEC 60282-1:2020 © IEC 2020
HIGH-VOLTAGE FUSES –
Part 1: Current-limiting fuses
1 Scope
This part of IEC
...

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