1、 IEC 60269-6 Edition 1.0 2010-09 INTERNATIONAL STANDARD NORME INTERNATIONALE Low-voltage fuses Part 6: Supplementary requirements for fuse-links for the protection of solar photovoltaic energy systems Fusibles basse tension Partie 6: Exigences supplmentaires concernant les lments de remplacement uti
2、liss pour la protection des systmes dnergie solaire photovoltaque IEC 60269-6:2010 THIS PUBLICATION IS COPYRIGHT PROTECTED Copyright 2010 IEC, Geneva, Switzerland All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, e
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16、sur cette publication ou si vous avez des questions, visitez le FAQ du Service clients ou contactez-nous: Email: csciec.ch Tl.: +41 22 919 02 11 Fax: +41 22 919 03 00 IEC 60269-6 Edition 1.0 2010-09 INTERNATIONAL STANDARD NORME INTERNATIONALE Low-voltage fuses Part 6: Supplementary requirements for
17、fuse-links for the protection of solar photovoltaic energy systems Fusibles basse tension Partie 6: Exigences supplmentaires concernant les lments de remplacement utiliss pour la protection des systmes dnergie solaire photovoltaque INTERNATIONAL ELECTROTECHNICAL COMMISSION COMMISSION ELECTROTECHNIQU
18、E INTERNATIONALE U ICS 29.120.50 PRICE CODE CODE PRIX ISBN 978-2-88912-188-5 Registered trademark of the International Electrotechnical Commission Marque dpose de la Commission Electrotechnique Internationale 2 60269-6 IEC:2010 CONTENTS FOREWORD.4 1 General 6 1.1 Scope and object.6 1.2 Normative ref
19、erences 6 2 Terms and definitions, 7 2.2 General terms .7 3 Conditions for operation in service10 3.4 Voltage10 3.4.1 Rated voltage 10 3.5 Current10 3.5.1 Rated Current10 3.6 Frequency, power factor and time constant .10 3.6.1 Frequency .10 3.6.2 Power factor 10 3.6.3 Time constant10 3.10 Temperatur
20、e inside an enclosure 11 4 Classification11 5 Characteristics of fuses 11 5.1 Summary of characteristics .11 5.1.2 Fuse-links11 5.2 Rated voltage11 5.5 Rated power dissipation of the fuse-link 11 5.6 Limits of time-current characteristics .11 5.6.1 Time-current characteristics, time-current zones .1
21、1 5.6.2 Conventional times and currents11 5.6.3 Gates 12 5.7 Breaking range and breaking capacity.12 5.7.1 Breaking range and utilization category .12 5.7.2 Rated breaking capacity 12 6 Markings 12 6.2 Markings on fuse-links.12 7 Standard conditions for construction.12 7.5 Breaking capacity12 8 Test
22、s13 8.1 General .13 8.1.4 Arrangement of the fuse and dimensions.13 8.1.5 Testing of fuse-links 13 8.3 Verification of temperature rise limits and power dissipation14 8.3.1 Arrangement of the fuse-link14 8.3.3 Measurement of power dissipation of the fuse-link.14 8.3.5 Acceptability of test results14
23、 8.4 Verification of operation 15 8.4.1 Arrangement of fuse-link15 8.4.3 Test method and acceptability of test results .15 8.5 Verification of the breaking capacity15 8.5.1 Arrangement of the fuse 15 60269-6 IEC:2010 3 8.5.5 Test method 16 8.5.8 Acceptability of test results16 8.11 Mechanical and mi
24、scellaneous tests17 Annex AA (normative) Examples of standardized fuse-links for the protection of solar photovoltaic energy systems.19 Annex BB (informative) Guidance for the protection of Photovoltaic string and array with fuse-links designed for PV applications .27 Bibliography28 Figure 101 Curre
25、nt of test cycling 18 Figure AA.1 Fuse-links with cylindrical contact caps, type A 20 Figure AA.2 Fuse-links with cylindrical contact caps type A with striker Additional dimensions for sizes 14 51, 20 127 and 22 127 only 21 Figure AA.3 North American cylindrical fuse-links with blade contacts Sizes
26、61- 600 A22 Figure AA.4 Fuse-links with blade contacts, type C, C referring IEC 60269-2 “Fuse system A (NH fuse system)”24 Figure AA.5 Fuse-links with long blade contacts, type D 26 Table 101 Conventional times and currents for “gPV” fuse-links12 Table 102 Survey of complete tests on fuse-links and
27、number of fuse-links to be tested .13 Table 103 Survey of tests on fuse-links of the smallest rated current of a homogeneous series and number of fuse-links to be tested 14 Table 104 Values for breaking-capacity tests on “gPV” fuse-links 16 4 60269-6 IEC:2010 INTERNATIONAL ELECTROTECHNICAL COMMISSIO
28、N _ LOW-VOLTAGE FUSES Part 6: Supplementary requirements for fuse-links for the protection of solar photovoltaic energy systems FOREWORD 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising all national electrotechnical committees (IEC Nat
29、ional Committees). The object of IEC is to promote international co-operation on all questions concerning standardization in the electrical and electronic fields. To this end and in addition to other activities, IEC publishes International Standards, Technical Specifications, Technical Reports, Publ
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39、 International Standard IEC 60269-6 has been prepared by subcommittee 32B: Low-voltage fuses, of IEC technical committee 32: Fuses. The text of this standard is based on the following documents: FDIS Report on voting 32B/561/FDIS 32B/569/RVD Full information on the voting for the approval of this te
40、chnical report can be found in the report on voting indicated in the above table. This part is to be used in conjunction with IEC 60269-1:2006, Low-voltage fuses, Part 1: General requirements. This Part 6 supplements or modifies the corresponding clauses or subclauses of Part 1. 60269-6 IEC:2010 5 W
41、here no change is necessary, this Part 6 indicates that the relevant clause or subclause applies. Tables and figures which are additional to those in Part 1 are numbered starting from 101. Additional annexes are lettered AA, BB, etc. This publication has been drafted in accordance with the ISO/IEC D
42、irectives, Part 2. A list of all parts of the IEC 60269 series, under the general title: Low-voltage fuses, can be found on the IEC website. The committee has decided that the contents of this publication will remain unchanged until the stability date indicated on the IEC web site under “http:/webst
43、ore.iec.ch“ in the data related to the specific publication. At this date, the publication will be reconfirmed; withdrawn; replaced by a revised edition, or amended. 6 60269-6 IEC:2010 LOW-VOLTAGE FUSES Part 6: Supplementary requirements for fuse-links for the protection of solar photovoltaic energy
44、 systems 1 General IEC 60269-1 applies with the following supplementary requirements. Fuse-links for the protection of solar photovoltaic (PV) energy systems shall comply with aIl requirements of IEC 60269-1, if not otherwise indicated hereinafter, and shall also comply with the supplementary requir
45、ements laid down below. NOTE The abbreviation “PV” (photovoltaic) is used in this document. 1.1 Scope and object These supplementary requirements apply to fuse-links for protecting PV strings and PV arrays in equipment for circuits of nominal voltages up to 1 500 V d.c. Their rated voltage may be up
46、 to 1 500 V d.c. NOTE 1 Such fuse-Iinks are commonly referred to as “PV fuse-links”. NOTE 2 In most cases, a part of the associated equipment serves the purpose of a fuse-base. Owing to the great variety of equipment, no general rules can be given; the suitability of the associated equipment to serv
47、e as a fuse- base should be subject to agreement between the manufacturer and the user. However, if separate fuse-bases or fuse-holders are used, they should comply with the appropriate requirements of IEC 60269 series. NOTE 3 PV fuse-links protect down stream inverter components such as capacitors
48、or the discharge of capacitors back into the arrays or array wiring up to the rated breaking capacity. The object of these supplementary requirements is to establish the characteristics of PV fuse- links in such a way that they can be replaced by other fuse-links having the same characteristics, pro
49、vided that their dimensions are identical. For this purpose, this standard refers in particular to a) the following characteristics of fuses: 1) their rated values; 2) their utilisation category; 3) their temperature rises in normal service; 4) their power dissipation; 4) their time-current characteristics; 6) their breaking capacity; 7) their dimensions or size (if applicable). b) type tes