SIST EN IEC 60282-1:2020

SLOVENSKI STANDARD
oSIST prEN IEC 60282-1:2018
01-december-2018
Visokonapetostne varovalke - 1. del: Tokovno omejilne varovalke
High-voltage fuses - Part 1: Current-limiting fuses
Hochspannungssicherungen - Teil 1: Strombegrenzende Sicherungen
Fusibles à haute tension - Partie 1: Fusibles limiteurs de courant
Ta slovenski standard je istoveten z: prEN IEC 60282-1:2018
ICS:
29.120.50 9DURYDONHLQGUXJD Fuses and other overcurrent
PHGWRNRYQD]DãþLWD protection devices
oSIST prEN IEC 60282-1:2018 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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oSIST prEN IEC 60282-1:2018

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oSIST prEN IEC 60282-1:2018
32A/341/CDV

COMMITTEE DRAFT FOR VOTE (CDV)
PROJECT NUMBER:
IEC 60282-1 ED8
DATE OF CIRCULATION: CLOSING DATE FOR VOTING:
2018-10-19 2019-01-11
SUPERSEDES DOCUMENTS:
32A/326/CD,32A/331A/CC

IEC SC 32A : HIGH-VOLTAGE FUSES
SECRETARIAT: SECRETARY:
France Mr Raphaël Buisson
OF INTEREST TO THE FOLLOWING COMMITTEES: PROPOSED HORIZONTAL STANDARD:

SC 17A,SC 17C
Other TC/SCs are requested to indicate their interest, if any,
in this CDV to the secretary.
FUNCTIONS CONCERNED:

EMC ENVIRONMENT QUALITY ASSURANCE SAFETY
SUBMITTED FOR CENELEC PARALLEL VOTING NOT SUBMITTED FOR CENELEC PARALLEL VOTING
Attention IEC-CENELEC parallel voting
The attention of IEC National Committees, members of
CENELEC, is drawn to the fact that this Committee Draft for
Vote (CDV) is submitted for parallel voting.
The CENELEC members are invited to vote through the
CENELEC online voting system.

This document is still under study and subject to change. It should not be used for reference purposes.
Recipients of this document are invited to submit, with their comments, notification of any relevant patent rights of which they
are aware and to provide supporting documentation.

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

PROPOSED STABILITY DATE: 2025

NOTE FROM TC/SC OFFICERS:


Copyright © 2018 International Electrotechnical Commission, IEC. All rights reserved. It is permitted to download this
electronic file, to make a copy and to print out the content for the sole purpose of preparing National Committee positions.

You may not copy or "mirror" the file or printed version of the document, or any part of it, for any other purpose without
permission in writing from IEC.

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1 CONTENTS
2 FOREWORD . 5
3 1 General . 7
4 1.1 Scope . 7
5 1.2 Normative references . 7
6 2 Normal and special service conditions . 7
7 2.1 Normal service conditions . 7
8 2.2 Special service conditions . 8
9 2.3 Environmental behaviour . 9
10 3 Definitions . 9
11 3.1 Electrical characteristics . 9
12 3.2 Fuses and their component parts . 13
13 3.3 Additional terms . 15
14 4 Ratings and characteristics . 16
15 4.1 General . 16
16 4.2 Ratings and characteristics that are applicable to all fuses . 17
17 4.3 Characteristics of particular fuse-link types and applications . 24
18 5 Design, construction and performance . 27
19 5.1 General requirements with respect to fuse operation . 27
20 5.2 Identifying markings . 28
21 5.3 Dimensions . 29
22 6 Type tests performed on all fuses . 29
23 6.1 Conditions for making the tests . 29
24 6.2 List of type tests . 29
25 6.3 Common test practices for all type tests . 30
26 6.4 Dielectric tests . 30
27 6.5 Temperature-rise tests and power-dissipation measurement . 32
28 6.6 Breaking tests . 33
29 6.7 Tests for time-current characteristics . 49
30 6.8 Electromagnetic compatibility (EMC) . 49
31 7 Type tests for particular fuse-link types and applications . 49
32 7.1 General . 49
33 7.2 List of type tests . 50
34 7.3 Tests required for a particular type of fuse or application . 50
35 7.4 Tests performed at the request of a user . 58
36 8 Routine tests . 59
37 Annex A (normative) Method of drawing the envelope of the prospective and transient
38 recovery voltage of a circuit and determining the representative parameters . 60
39 A.1 Introduction . 60
40 A.2 Drawing the envelope . 60
41 A.3 Determination of parameters . 60
42 Annex B (informative) Reasons which led to the choice of TRV values for Test Duties
43 1, 2 and 3 . 62
44 Annex C (informative) Preferred arrangements for temperature-rise tests of liquid-
45 tight fuse-links . 64
46 Annex D (informative) Types and dimensions of current-limiting fuse-links specified in
47 existing national standards . 65
48 Annex E (normative) Requirements for certain types of fuse-links intended for use at
49 surrounding temperatures above 40 °C . 68

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50 E.1 Types of fuse-link covered by this annex. 68
51 E.2 Definitions . 68
52 E.3 Preferred MAT ratings . 69
53 E.4 Specific service conditions . 69
54 E.5 Additional breaking test requirements . 69
55 E.6 Full-Range fuse: determination of I current . 70
3
56 Annex F (informative) Criteria for determining I testing validity . 72
t
57 F.1 Introduction . 72
58 F.2 Breaking processes . 72
59
60 Figure 1 – Terminology . 14
61 Figure 2 – Permissible switching voltages for fuse-links of small current ratings
62 (Table 8) . 23
63 Figure 3 – Various stages of the striker travel . 25
64 Figure 4 – Representation of a specified TRV by a two-parameters reference line and
65 a delay line . 37
66 Figure 5 – Example of a two-parameters reference line for a TRV complying with the
67 conditions of the type test . 38
68 Figure 6 – Breaking tests – Arrangement of the equipment . 41
69 Figure 7 – Breaking tests – Typical circuit diagram for Test Duties 1 and 2 . 42
70 Figure 8 – Breaking tests – Typical circuit diagram for Test Duty 3 . 42
71 Figure 9 – Breaking tests – Interpretation of oscillograms for Test Duty 1 . 44
72 Figure 10 – Breaking tests – Interpretation of oscillograms for Test Duty 2 (calibration
73 traces as in a) of Figure 9) . 45
74 Figure 11 – Breaking tests – Interpretation of oscillograms for Test Duty 3 . 45
75 Figure 12 – Test sequence for switchgear type applications . 55
76 Figure 13 – Test sequence for transformer type applications . 56
77 Figure 14 – Test sequence for series a) test for transformer type applications . 57
78 Figure 15 – Test sequence for series b) test for transformer type applications . 58
79 Figure A.1 – Example of a two-parameters reference line for a TRV whose initial
80 portion is concave towards the left . 61
81 Figure A.2 – Example of a two-parameters reference line for an exponential TRV . 61
82 Figure C.1 – Test tank for temperature-rise tests of liquid-tight fuses . 64
83 Figure C.2 – Details of clamping arrangement for fuse-link in the tank . 64
84
85 Table 1 – Altitude correction factors – Dielectric withstand . 9
86 Table 2 – Altitude correction factors – Current-carrying capability . 9
87 Table 3 – Rated voltages . 17
88 Table 4 – Fuse-base rated insulation levels – Series I . 19
89 Table 5 – Fuse-base rated insulation levels – Series II . 19
90 Table 6 – Limits of temperature and temperature rise for components and materials . 21
91 Table 7 – Maximum permissible switching voltages . 22
92 Table 8 – Maximum permissible switching voltages for certain fuse-links of small
93 current ratings . 22
94 Table 9 – Striker mechanical characteristics . 26
95 Table 10 – Electrical connection to the test circuit – Conductor sizes . 32

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96 Table 11 – Breaking tests – Parameters . 36
97 Table 12 – Standard values of rated TRV for I – Series I rated voltages . 39
1
98 Table 13 – Standard values of rated TRV for I – Series II rated voltages . 39
1
99 Table 14 – TRV for Test Duty 2 – Series I rated voltages . 40
100 Table 15 – TRV for Test Duty 2 – Series II rated voltages . 40
101 Table 16 – Breaking test requirements for fuse-links of a homogeneous series . 47
102

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103 INTERNATIONAL ELECTROTECHNICAL COMMISSION
104 ____________
105
106 HIGH-VOLTAGE FUSES –
107
108 Part 1: Current-limiting fuses
109
110
111 FOREWORD
112 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
113 all national electrotechnical committees (IEC National Committees). The object of IEC is to promote
114 international co-operation on all questions concerning standardization in the electrical and electronic fields. To
115 this end and in addition to other activities, IEC publishes International Standards, Technical Specifications,
116 Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC
117 Publication(s)”). Their preparation is entrusted to technical committees; any IEC National Committee interested
118 in the subject dealt with may participate in this preparatory work. International, governmental and non-
119 governmental organizations liaising with the IEC also participate in this preparation. IEC collaborates closely
120 with the International Organization for Standardization (ISO) in accordance with conditions determined by
121 agreement between the two organizations.
122 2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
123 consensus of opinion on the relevant subjects since each technical committee has representation from all
124 interested IEC National Committees.
125 3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
126 Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC
127 Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
128 misinterpretation by any end user.
129 4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
130 transparently to the maximum extent possible in their national and regional publications. Any divergence
131 between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in
132 the latter.
133 5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity
134 assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any
135 services carried out by independent certification bodies.
136 6) All users should ensure that they have the latest edition of this publication.
137 7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and
138 members of its technical committees and IEC National Committees for any personal injury, property damage or
139 other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and
140 expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC
141 Publications.
142 8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
143 indispensable for the correct application of this publication.
144 9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of
145 patent rights. IEC shall not be held responsible for identifying any or all such patent rights.
146 International Standard IEC 60282-1 has been prepared by subcommittee 32A: High-voltage
147 fuses, of IEC technical committee 32: Fuses.
148 This eighth edition cancels and replaces the seventh edition published in 2009. The content of
149 the amendment (2013) has been considered for this revision.
150 The main changes introduced by this new edition are:
151 Additional information concerning thermally operated strikers, the division of ratings,
152 characteristics and type tests into those applicable to all fuses and those applicable to
153 particular fuse-link types and applications, adjustment of Series II voltages and tests to meet
154 present North American standard system voltages and applications, clarification of
155 requirements for fuse-links used in surrounding temperatures above 40 °C, and clarification of
156 homogeneous requirements for fuse-links containing one element.
157 The text of this standard is based on the following documents:
FDIS Report on voting
32A/XX/FDIS 32A/XX/RVD

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158 Full information on the voting for the approval of this standard can be found in the report on
159 voting indicated in the above table.
160 This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.
161 The IEC 60282 series consists of the following parts, under the general title High-voltage
162 fuses:
163 – Part 1: Current-limiting fuses
164 – Part 2: Expulsion fuses
165 The committee has decided that the contents of this document will remain unchanged until the
166 stability date indicated on the IEC website under "http://webstore.iec.ch" in the data related to
167 the specific document. At this date, the document will be
168 • reconfirmed,
169 • withdrawn,
170 • replaced by a revised edition, or
171 • amended.
172
173

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174 HIGH-VOLTAGE FUSES –
175
176 Part 1: Current-limiting fuses
177
178 1 General
179 1.1 Scope
180 This part of IEC 60282 applies to all types of high-voltage current-limiting fuses designed for
181 use outdoors or indoors on alternating current systems of 50 Hz and 60 Hz and of rated
182 voltages exceeding 1 000 V.
183 1.2 Normative references
184 The following documents are referred to in the text in such a way that some or all of their
185 content constitutes requirements of this document. For dated references, only the edition
186 cited applies. For undated references, the latest edition of the referenced document (including
187 any amendments) applies.
188 IEC 60050-441:1984 + AMD1:2000, International Electrotechnical Vocabulary (IEV) – Chapter
189 441: Switchgear, controlgear and fuses
190 IEC 60050-614:2016, International Electrotechnical Vocabulary (IEV) – Chapter 614: Generation,
191 transmission and distribution of electricity – Operation
192 IEC 60060-1:2010, High-voltage test techniques – Part 1: General definitions and test
193 requirements
194 IEC 60071-1:1993, Insulation coordination – Part 1: Definitions, principles and rules
195 IEC 60085:1984, Thermal evaluation and classification of electrical insulation
196 IEC 60549, High-voltage fuses for the external protection of shunt capacitors
197 IEC 60644, Specification for high-voltage fuse-links for motor circuit applications
198 IEC 62271-100:2008+AMD1:2012+AMD2:2017, High-voltage switchgear and controlgear –
199 Part 100: High-voltage alternating-current circuit-breakers
200 IEC 62271-105, High-voltage switchgear and controlgear – Part 105: Alternating current
201 switch-fuse combinations for rated voltages above 1 kV up to and including 52 kV
202 IEC/TR 62655:2013, Tutorial and application guide for high-voltage fuses
203 ISO 148-2:1998, Metallic materials – Charpy pendulum impact test – Part 2: Verification of
204 test machines
205 ISO 179 (all parts), Plastics – Determination of Charpy impact properties
206 2 Normal and special service conditions
207 2.1 Normal service conditions
208 Fuses complying with this standard are designed to be used under the following conditions.
209 a) The maximum ambient air temperature is 40 °C and its mean measured over a period of
210 24 h does not exceed 35 °C.
211 The minimum ambient air temperature is –25 °C.
212 NOTE 1 The time-current characteristics of fuses will be modified at the minimum and maximum
213 temperatures.
214 b) The altitude does not exceed 1 000 m.
215 c) The ambient air is not excessively (or abnormally) polluted by dust, smoke, corrosive or
216 flammable gases, vapour or salt.

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217 d) For indoor installations, the conditions of humidity are under consideration but, in the
218 meantime, the following figures can be used as a guide:
219 – the average value of the relative humidity, measured during a period of 24 h, does not
220 exceed 95 %;
221 – the average value of the vapour pressure, for a period of 24 h, does not exceed
222 22 hPa;
223 – the average value of the relative humidity, for a period of one month, does not exceed
224 90 %;
225 – the average value of the water vapour pressure, for a period of one month, does not
226 exceed 18 hPa.
227 For these conditions, condensation may occasionally occur.
228 NOTE 2 Condensation can be expected where sudden temperature changes occur in periods of high
229 humidity.
230 NOTE 3 To withstand the effects of high humidity and occasional condensation, such as breakdown of in-
231 sulation or corrosion of metallic parts, indoor fuses designed for such conditions and tested accordingly or
232 outdoor fuses are an alternative.
233 NOTE 4 Condensation is prevented by special design of the building or housing, by suitable ventilation and
234 heating of the station or by the use of dehumidifying equipment.
235 e) Vibrations due to causes external to fuses or earth tremors are negligible.
236 In addition, for outdoor installations,
237 f) account should be taken of the presence of condensation or rain and rapid temperature
238 changes;
239 g) the wind pressure does not exceed 700 Pa (corresponding to 34 m/s wind speed);
2
240 h) the solar radiation does not exceed 1,0 kW/m .
241 Applications involving fuse-links in enclosures (fuse enclosure packages) typically satisfy the
242 requirements of “normal service conditions” because the ambient temperature (the
243 temperature outside the enclosure) meets the temperatures in a) of this subclause. However,
244 in an enclosure, surrounding temperatures (see 3.3.11) above 40 °C are to be expected and
245 additional considerations may apply regarding assigning a current carrying capability to the
246 device (see 4.2.4, 4.2.5, 4.2.9.2 and IEC/TR 62655:2013).
247 For certain fuse-links and applications in enclosures additional tests may be required as
248 covered in this standard in Annex E.
249 2.2 Special service conditions
250 2.2.1 General
251 By agreement between the manufacturer and the user, high-voltage fuses may be used under
252 conditions different from the normal service conditions given in 2.1. For any special service
253 condition, the manufacturer shall be consulted.
254 2.2.2 Altitude
255 For installations at an altitude higher than 1 000 m, the required rated insulation withstand
256 level of external insulation shall be determined by multiplying the needed insulation levels at
257 the service location by an altitude correction factor, K (> 1) given in column (2) of Table 1.
a
258 The dielectric withstand voltages of a fuse at a particular altitude may be determined by
259 multiplying its rated insulation withstand levels by 1/K (< 1), given in column (3) of Table 1.
a
260 For altitudes between 1 000 m and 1 500 m and between 1 500 m and 3 000 m, the correction
261 factors may be obtained by linear interpolation between the values in Table 1.

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262 Table 1 – Altitude correction factors – Dielectric withstand
Maximum altitude Correction factor for Correction factor
m withstand voltages (K ) applied to rated
a
withstand voltages
(2)
(1/K )
(1) a

(3)
1 000 1,0 1,0
1 500 1,05 0,95
3 000  1,25 0,80
263 Where the dielectric characteristics are identical at any altitude, no special precautions need
264 to be taken.
265 The current-carrying capability of a fuse may be determined for altitudes exceeding 1 000 m
266 by applying the appropriate factors given in Table 2, column (2) to the rated current or
267 allowable continuous current of the fuse.
268 For altitudes between 1 000 m and 1 500 m and between 1 500 m and 3 000 m, the correction
269 factors may be obtained by linear interpolation between the values in Table 2.
270 Table 2 – Altitude correction factors – Current-carrying capability
Maximum altitude Correction factor
m for current-carrying
capability
(1)
(2)
1 000 1,0
1 500 0,99
3 000 0,96
271
272 2.3 Environmental behaviour
273 Fuses complying with this standard are inert devices during normal service. It is also a
274 requirement of 5.1.3 that no significant external emission takes place. Therefore, they are
275 regarded as environmentally safe devices in service and operation.
276 3 Definitions
277 For the purposes of this document, the following terms and definitions apply.
278 ISO and IEC maintain terminological databases for use in standardization at the following
279 addresses:
280 • IEC Electropedia: available at http://www.electropedia.org/
281 • ISO Online browsing platform: available at http://www.iso.org/obp
282
283 3.1 Electrical characteristics
284 3.1.1
285 rated value
286 value of a quantity used for specification purposes, established for a specified set of operating
287 conditions of a component, device, equipment, or system
288 NOTE 1 to entry: Examples of rated values usually stated for fuses include, voltage, current and breaking current.
289 [SOURCE: IEC 60050-441:2000, 441-18-35, modified ̶ “used for specification purposes” and
290 “system” added]

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291 3.1.2
292 rating
293 set of rated values and operating conditions
294 [SOURCE: IEC 60050-441:2000, 441-18-36]
295 3.1.3
296 prospective current (of a circuit and with respect to a fuse)
297 current that would flow in the circuit if the fuse were replaced by a conductor of negligible
298 impedance
299 NOTE 1 to entry: For the method to evaluate and to express the prospective current, see 6.6.2.1 and 6.6.2.2.
300 [SOURCE: IEC 60050-441:2000, 441-17-01, modified ̶ “each pole of the switching device or”
301 has been deleted and “is to be specified in the relevant publications” has been deleted and
302 “see 6.6.2.1 and 6.6.2.2” has been added.]
303 3.1.4
304 prospective peak current
305 peak value of a prospective current during the transient period following initiation
306 NOTE 1 to entry: The definition assumes that the current is made by an ideal switching device, i.e. with instan-
307 taneous transition from infinite to zero impedance. For circuits where the current can follow several different paths,
308 for example polyphase circuits, it further assumes that the current is made simultaneously in all poles, even if only
309 the current in one p
...