High-voltage fuses - Part 2: Expulsion fuses

IEC 60282-2:2008 provides requirements for expulsion 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. The main changes with regard to the previous edition include:
- Class C has been eliminated;
- TRV values have been reviewed and, where appropriate, harmonized with IEC 62271-100:2001, its amendment 1 (2002) and amendment 2 (2006);
- tests for non-ceramic insulators have been included;
- a lightning surge impulse withstand test for fuse-links has been included; and
- an homogeneous series has been redefined.

Fusibles à haute tension - Partie 2: Coupe-circuit à expulsion

La CEI 60282-2:2008 donne les conditions exigées pour les fusibles à expulsion, 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. Les changements majeurs par rapport à l'édition précédente sont les suivants:
- la classe C a été supprimée;
- les valeurs de TTR ont été passées en revue et harmonisées, lorsque c'était pertinent, avec la CEI 62271-100 :2001, son amendement 1 (2002) et son amendement 2 (2006);
- des essais sur les isolateurs non-céramique ont été introduits; et
- les séries homogènes ont été redéfinies.

General Information

Status
Published
Publication Date
28-Apr-2008
Technical Committee
Drafting Committee
Current Stage
PPUB - Publication issued
Start Date
31-May-2008
Completion Date
29-Apr-2008
Ref Project

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IEC 60282-2:2008 - High-voltage fuses - Part 2: Expulsion fuses
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IEC 60282-2
Edition 3.0 2008-04
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
High-voltage fuses –
Part 2: Expulsion fuses
Fusibles à haute tension –
Partie 2: Coupe-circuit à expulsion

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IEC 60282-2
Edition 3.0 2008-04
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
High-voltage fuses –
Part 2: Expulsion fuses
Fusibles à haute tension –
Partie 2: Coupe-circuit à expulsion

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
XA
CODE PRIX
ICS 29.120.50 ISBN 2-8318-9739-4

– 2 – 60282-2 © IEC:2008
CONTENTS
FOREWORD.4
1 Scope.6
2 Normative references .6
3 Terms and definitions .7
3.1 Electrical characteristics.7
3.2 Fuses and their component parts (see Figure 1).9
3.3 Additional terms .11
4 Service conditions .12
4.1 Normal service conditions .12
4.2 Special service conditions .12
5 Classification and designation .12
5.1 Classification.12
5.2 Fuse-link speed designation .13
6 Ratings.13
6.1 General .13
6.2 Rated voltage.13
6.3 Rated current .14
6.4 Rated frequency.14
6.5 Rated breaking capacity .14
6.6 Rated insulation level (of a fuse or fuse-base).14
7 Standard conditions of use and behaviour .15
7.1 Standard conditions of use with respect to breaking capacity .15
7.2 Standard conditions of behaviour with respect to breaking capacity.15
7.3 Time-current characteristics .16
7.4 Temperature and temperature rise .16
7.5 Electromagnetic compatibility .17
7.6 Mechanical requirements (for distribution fuse-cutouts) .17
8 Type tests .17
8.1 Conditions for performing the tests .17
8.2 List of type tests and test reports.17
8.3 Common test practices for all type tests .18
8.4 Dielectric tests .18
8.5 Temperature-rise tests .19
8.6 Breaking tests .20
8.7 Time-current characteristics tests.24
8.8 Mechanical tests (for distribution fuse-cutouts).25
8.9 Artificial pollution tests .25
9 Special tests.26
9.1 General .26
9.2 Lightning surge impulse withstand test .26
10 Acceptance tests .27
11 Markings and information .27
11.1 Identifying markings .27
11.2 Information to be given by the manufacturer.27
12 Application guide.27

60282-2 © IEC:2008 – 3 –
12.1 Object .27
12.2 General .28
12.3 Application .28
12.4 Operation .30
12.5 Information about special requirements not covered by this standard .30
Annex A (informative) Reasons for the selection of breaking-test values.48
Annex B (informative) Typical dimensions for fuse-links having an inner arc-quenching
tube and used in distribution fuse-cutouts and open-link cutouts.50
Annex C (informative) Operating rods for fuses.52
Bibliography.53

Figure 1 – Terminology for expulsion fuses.42
Figure 2 – Diagram of connections of a three-pole fuse .43
Figure 3 – Typical diagrams for breaking tests .44
Figure 4 – Breaking-test arrangement of the equipment .45
Figure 5 – Breaking-test interpretation of oscillograms.46
Figure 6 – Representation of a specified TRV by a two-parameter reference line and a
delay line .47
Figure 7 – Example of prospective test TRV with two-parameter envelope which
satisfies the conditions to be met during type test .47
Figure B.1 – Typical dimensions for fuse-links having an inner arc-quenching tube, and
used in distribution fuse-cutouts and open-link cutouts .51

Table 1 – Altitude correction factors for insulation levels.30
Table 2 – Altitude correction factors for temperature rise .30
Table 3 – Rated voltages .31
Table 4 – Rated insulation levels (Series I).32
Table 5 – Rated insulation levels (Series II).33
Table 6 – Test parameters .34
Table 7 – Values of circuit-power factor for test duty 4.35
Table 8 – Standardized values of transient recovery voltage for test duties 1, 2 , 3 and 4
– Class A fuses – Representation by two parameters – Tests at rated voltage .36
Table 9 – Standardized values of transient recovery voltage for test duties 1, 2, 3 and 4 –
Class B fuses – Representation by two parameters – Tests at rated voltage .37
Table 10 – Limit values for pre-arcing time-current characteristics – Fuse-links
designated type K .38
Table 11 – Limit values for pre-arcing time-current characteristics – Fuse-links
designated type T .39
Table 12 − Temperature and temperature-rise limit values of parts and materials .40
Table 13 – Dielect
...

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