oSIST prEN IEC 60269-7:2021

SLOVENSKI STANDARD
oSIST prEN IEC 60269-7:2021
01-september-2021
Nizkonapetostne varovalke - 7. del: Taljivi vložki za zaščito baterij
Low-voltage fuses - Part 7: Fuse links for the protection of batteries
Fusibles basse tension - Partie 7: Exigences supplémentaires concernant les éléments
de remplacement utilisés pour la protection des batteries et des systèmes de batterie
Ta slovenski standard je istoveten z: prEN IEC 60269-7:2021
ICS:
29.120.50 Varovalke in druga Fuses and other overcurrent
nadtokovna zaščita protection devices
oSIST prEN IEC 60269-7:2021 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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32B/700/CDV

COMMITTEE DRAFT FOR VOTE (CDV)
PROJECT NUMBER:
IEC 60269-7 ED1
DATE OF CIRCULATION: CLOSING DATE FOR VOTING:
2021-06-11 2021-09-03
SUPERSEDES DOCUMENTS:
32B/695/CD, 32B/696A/CC

IEC SC 32B : LOW-VOLTAGE FUSES
SECRETARIAT: SECRETARY:
Germany Mr Michael Altenhuber
OF INTEREST TO THE FOLLOWING COMMITTEES: PROPOSED HORIZONTAL STANDARD:

TC 21,SC 32A,TC 64,TC 120
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:
Low-voltage fuses - Part 7: Fuse links for the protection of batteries

PROPOSED STABILITY DATE: 2024

NOTE FROM TC/SC OFFICERS:


Copyright © 2021 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 LOW VOLTAGE FUSES
2 Part 7: Supplementary Requirements for fuse-links for the protection of batteries and battery systems
3
4 FOREWORD
5
6   1)  The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
7     all national electrotechnical committees (IEC National Committees). The object of IEC is to promote
8     international co-operation on all questions concerning standardization in the electrical and electronic fields. To
9     this end and in addition to other activities, IEC publishes International Standards, Technical Specifications,
10    Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC
11    Publication(s)”). Their preparation is entrusted to technical committees; any IEC National Committee interested
12    in the subject dealt with may participate in this preparatory work. International, governmental and non17
13    governmental organizations liaising with the IEC also participate in this preparation. IEC collaborates closely
14    with the International Organization for Standardization (ISO) in accordance with conditions determined by
15    agreement between the two organizations.
16      2)  The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
17            consensus of opinion on the relevant subjects since each technical committee has representation from all
18            interested IEC National Committees.
19      3)  IEC Publications have the form of recommendations for international use and are accepted by IEC National
20   Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC
21   Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
22   misinterpretation by any end user.
23     4)  In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
24    transparently to the maximum extent possible in their national and regional publications. Any divergence
25           between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in
26           the latter.
27      5)  IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity
28   assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any
29   services carried out by independent certification bodies.
30 6)  All users should ensure that they have the latest edition of this publication.
31 7)  No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and
32    members of its technical committees and IEC National Committees for any personal injury, property damage or
33   other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and
34    expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC
35           Publications.
36 8)  Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
37     indispensable for the correct application of this publication.
38 9)  Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of
39  patent rights. IEC shall not be held responsible for identifying any or all such patent rights.
40
41
42 International Standard IEC 60269-7 has been prepared by subcommittee 32B: Low-voltage
43 fuses, of IEC technical committee 32: Fuses.
44 The text of this standard is based on the following documents:
45
46 Full information on the voting for the approval of this standard can be found in the
47 report on voting indicated in the above table.
48 This part is to be used in conjunction with IEC 60269-1, Low-voltage fuses, Part 1:
49 General requirements.
50
51 This Part 7 supplements or modifies the corresponding clauses or subclauses of Part 1.
52 Where no change is necessary, this Part 7 indicates that the relevant clause or subclause of Part 1
53 applies.
54
55 Tables and figures which are additional to those in Part 1 are numbered starting from 101.
56 Additional annexes are lettered AA, BB, etc.
57
58 This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.
59 A list of all parts of the IEC 60269 series, under the general title: Low-voltage fuses, can be
60 found on the IEC website.
61
62 The committee has decided that the contents of this publication will remain unchanged until
63 the stability date indicated on the IEC web site under "http://webstore.iec.ch" in the data
64 related to the specific publication. At this date, the publication will be

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65
66 • reconfirmed;
67 • withdrawn;
68 • replaced by a revised edition, or
69 • amended
70 The standard specifically supports the UN goals
71 Nr. 7: affordable and clean energy
72 Nr. 9: Industry, innovation and infrastructure
73 Nr. 11: Sustainable cities and communities
74 Nr. 12: Responsible consumption and communities
75
76 1 General
77
78 Fuse-links for the protection of battery energy systems shall comply with aIl
79 requirements of IEC 60269-1, if not otherwise indicated hereinafter, and shall also comply
80 with the supplementary requirements laid down below.
81
82 1.1 Scope and object
83 These supplementary requirements apply to fuse-links for the protection of batteries and battery
84 systems, including, but not limited to terminology, for electricity storage in equipment for circuits of
85 nominal voltages up to 1 500 V d.c.
86 Their rated voltage may be higher than 1 500 V d.c.
87
88 The object of these supplementary requirements is to establish the characteristics of Battery fuse-
89 links in such a way that they can be replaced by other fuse-links having the same characteristics,
90 provided that their dimensions are identical.
91
92 1.2 Normative references
93
94 The following referenced documents are indispensable for the application of this document.
95 For dated references, only the edition cited applies. For undated references, the latest edition
96 of the referenced document (including any amendments) applies.
97
98 IEC 60269-1: Low-voltage fuses – Part 1: General requirements1
99
100 IEC 60269-2: Low-voltage fuses – Part 2: Supplementary requirements for fuses for use by
101 authorized persons (fuses mainly for industrial application) – Examples of standardized
102 systems of fuses A to K
103
104 IEC 60364-4-41: Low-voltage electrical installations – Part 4-41: Protection for safety –Protection
105 against electric shock
106
107 IEC 60364-4-43: Low-voltage electrical installations – Part 4-43: Protection for safety –Protection
108 against overcurrent
109
110 IEC 60086-4/Ed5: Primary batteries - Part 4: Safety of lithium batteries
111
112 IEC 62932-1: Flow battery systems for stationary applications – Part 1: General Aspects, Terminology
113 and Definitions
114
115 IEC 62485-5: Safety requirements for secondary batteries and battery installations – Part 5: Safe
116 operation of stationary lithium-ion batteries in applications
117

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118 IEC 62485-6: Safety requirements for secondary batteries and battery installations – Part 5: Safe
119 operation of lithium-ion batteries in traction applications
120
121 IEC 62660-4 TR: Candidate alternative test methods for the internal short circuit test of IEC 62660-3
122
123 ISO 3, Preferred numbers – Series of preferred numbers
124
125 IECEE OD-5014 : IEC System of Conformity Assessment Schemes for Electrotechnical Equipment and
126 Components (IECEE System), Committee of Testing Laboratories (CTL),Instrument Accuracy Limits
127
128 ISO/IEC 17025 : General requirements for the competence of testing and calibration laboratories
129
130 2 Terms and definitions
131
132 For the purposes of this document, the terms and definitions given in IEC 60269-1 as well as
133 the following applies.
134
135 2.1 General terms
136
137 2.1.101 battery (IEV 482-01-04)
138 one or more cells fitted with devices necessary for use. For example case, terminals, markings and
139 protective devices etc., as necessary for use
140
141 2.1.102 cell (IEV 482-01-01)
142 basic functional unit, consisting of an assembly of electrodes, electrolyte, container, terminals and
143 usually separators, that is a source of electric energy obtained by direct conversion of chemical
144 energy
145
146 2.1.103 battery module
147 group of cells connected together, either in a series and/or parallel configuration with or without protective
148 devices (e.g. fuse or PTC: Positive Temperature Coefficient) and monitoring circuitry
149
150 2.1.104 battery system
151
152 battery system which incorporates one or more cells, modules or battery packs including associated devices.
153
154 NOTE - It has battery management unit to cut off in case of overcharging, over current, and overheating. It may have cooling or heating
155 units.
156
157 2.1.105 rated energy
158 quantity of energy, declared by the manufacturer, which under the specified conditions can be discharged from
159 fully charged flow battery energy storage system, to fully discharge
160 Note 1 to entry:: The rated energy is expressed in watt hour (Wh).
161
162 2.1.106 rated output power
163 electrical power, declared by the manufacturer, which under the specified operating conditions is the maximum
164 output power designed to achieve
165
166 Note 1 to entry: The rated output power is normally expressed in watt (W).
167
168 2.1.107 short-circuit current (IEV 482-03-26)
169 maximum current which can be delivered by a cell or battery into an external circuit with zero electric
170 resistance, or an external circuit which depresses the cell or battery voltage to approximately zero volts
171
172 2.1.108 open circuit voltage OCV, , off-load voltage U (IEV 482-03-32)
OC
173 voltage across the terminals of a cell or battery when no external current is flowing
174
175 2.1.109 overcurrent protective device (IEV 482-03-32)
176 Device provided to interrupt an electrical circuit in case the conductor current in the electrical circuit
177 exceeds a predetermined value for a specified duration.

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178
179 2.1.110 rated capacity (IEV 482-03-15)
180 capacity value of a cell or battery determined under specified conditions and declared by the
181 manufacturer
182
183
184 3 Conditions for operation in service
185
186 3.4 Voltage
187
188 The d.c. system voltage has a maximum value not exceeding 100% of the rated voltage of the
189 fuse.
190
191 3.4.1 Rated voltage
192
193 The rated d.c. voltage of a fuse-link shall exceed the maximum value of the open circuit
194 voltage of the Battery (OCV, UOC, off-load voltage) or of the network. See Annex AA.
195
196 3.5 Current
197
198 3.5.1 Rated Current
199
200 Rated currents are given in paragraph 5.3. These values depend upon the utilization categories and
201 rated voltages. For specific systems and sizes, see appendix AA
202
203 3.6 Frequency, power factor and time constant
204
205 3.6.1 Frequency
206 Not applicable
207
208 3.6.2 Power factor
209 Not applicable
210
211 3.6.3 Time constant
212 The time constants expected in practice are considered to correspond to those in Table 105 respectively
213 106.
214
215
216 3.10 Temperature inside an enclosure
217 Since the rated values of the fuse-links are based on specified conditions they do not always
218 correspond to those prevailing at the point of installation, including the local air conditions,
219 the user may have to consult the manufacturer to define allowable continuous current under these
220 specific conditions.
221
222 5 Characteristics of fuses
223
224 5.1 Summary of characteristics
225 5.1.2 Fuse-links
226
227 a) Rated voltage (see 5.2)
228 b) Rated current (see 5.3 of IEC 60269-1)
229 c) Rated power dissipation (see 5.5)
230 d) Time-current characteristics (see 5.6)
231 e) Breaking range and utilization category (see 5.7.1)
232 f) Rated breaking capacity (see 5.7.2)
233 g) Dimensions or size (if applicable)
234
235 5.2 Rated voltage
236 Table 22 of IEC 60269-1 applies; If it is necessary to choose lower values or intermediate values or

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237 higher values, these values should be selected from the series R10 of ISO 3, and in exceptional
238 cases, from R20 or R40 of ISO 3.
239
240 5.3 Rated current
241 IEC 60269-1 part 5.3.1. applies with the addition of the following rated currents: 1400 – 1600 – 1800 -
242 2000 – 2250 – 2800 – 3150 – 3600 – 4000 – 4500 - 5000.
243 5.5 Rated power dissipation of the fuse-link
244 In addition to the requirements of IEC 60269-1, the manufacturer shall indicate the power
245 dissipation as a function of current for the range contained between 50 % to 100 % of the
246 rated current, or publish the load profile.
247
248 Derating-curve for increased ambient temperature has to be given in the manufacturer’s literature.
249
250 5.6 Limits of time-current characteristics
251
252 5.6.1 Time-current characteristics, time-current zones
253 The manufacturer shall provide mean time-current characteristics.
254 The time/current curve should be plotted for d.c. with a time constant defined by the manuf
...