oSIST FprEN 61643-11:2009

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Parafoudres basse-tension -- Partie 11: Parafoudres connectés aux réseaux de distribution basse tension - Exigences de fonctionnement et méthodes d'essaisLow-voltage surge protective devices -- Part 11: Surge protective devices connected to low-voltage power distribution systems - Performance requirements and testing methods29.130.20Nizkonapetostne stikalne in krmilne napraveLow voltage switchgear and controlgearICS:Ta slovenski standard je istoveten z:FprEN 61643-11oSIST FprEN 61643-11:2009en,fr,de01-december-2009oSIST FprEN 61643-11:2009SLOVENSKI
STANDARD



oSIST FprEN 61643-11:2009



FORM CDV (IEC)
2009-01-09 ® Registered trademark of the International Electrotechnical Commission37A/216/CDVCOMMITTEE DRAFT FOR VOTE (CDV)PROJET DE COMITÉ POUR VOTE (CDV)Project number IEC 61643-11 Ed. 1.0 Numéro de projet
IEC/TC or SC:
SC 37A CEI/CE ou SC:
Secretariat / Secrétariat USA
Submitted for parallel voting in CENELEC
Soumis au vote parallèle au CENELEC Date of circulation Date de diffusion 2009-09-18 Closing date for voting (Voting mandatory for P-members) Date de clôture du vote (Vote obligatoire pour les membres (P)) 2010-02-19 Also of interest to the following committees Intéresse également les comités suivants
Supersedes document Remplace le document 37A/207A/CD and 37A/213A/CC Proposed horizontal standard Norme horizontale suggérée
Other TC/SCs are requested to indicate their interest, if any, in this CDV to the TC/SC secretary
Les autres CE/SC sont requis d’indiquer leur intérêt, si nécessaire, dans ce CDV à l’intention du secrétaire du CE/SC Functions concerned Fonctions concernées
Safety
Sécurité
EMC
CEM
Environment
Environnement
Quality assurance
Assurance qualité CE DOCUMENT EST TOUJOURS À L'ÉTUDE ET SUSCEPTIBLE DE MODIFICATION. IL NE PEUT SERVIR DE RÉFÉRENCE. LES RÉCIPIENDAIRES DU PRÉSENT DOCUMENT SONT INVITÉS À PRÉSENTER, AVEC LEURS OBSERVATIONS, LA NOTIFICATION DES DROITS DE PROPRIÉTÉ DONT ILS AURAIENT ÉVENTUELLEMENT CONNAISSANCE ET À FOURNIR UNE DOCUMENTATION EXPLICATIVE. 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.
Titre : CEI 61643-11 Ed. 1.0: Parafoudres basse tension – Partie 11: Parafoudres connectés aux réseaux de distribution basse tension – Exigences de fonctionnement et méthodes d'essais
Title : IEC 61643-11 Ed. 1.0:
Low-voltage surge protective devices - Part 11: Surge protective devices connected to Low-voltage power distribution systems - Performance requirements and testing methods
Note d'introduction
Introductory note
ATTENTION VOTE PARALLÈLE CEI – CENELEC L’attention des Comités nationaux de la CEI, membres du CENELEC, est attirée sur le fait que ce projet de comité pour vote (CDV) de Norme internationale est soumis au vote parallèle.
Les membres du CENELEC sont invités à voter via le système de vote en ligne du CENELEC. 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) for an International Standard is submitted for parallel voting. The CENELEC members are invited to vote through the CENELEC online voting system.
Copyright © 2009 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. ® oSIST FprEN 61643-11:2009



61643-11 Ed. 1/CDV © IEC
2CONTENTS 1 1 Scope.9 2 2 Normative references.9 3 3 Definitions and Abbreviations.10 4 4 Service conditions.17 5 4.1 Frequency.17 6 4.2 Voltage.17 7 4.3 Air pressure and altitude.17 8 4.4 Temperatures.17 9 4.5 Humidity.17 10 5 Classification.18 11 5.1 Number of ports.18 12 5.2 SPD design.18 13 5.3 SPD class I, II and III tests.18 14 5.4 Location.18 15 5.5 Accessibility.18 16 5.6 Mounting method.19 17 5.7 Disconnectors (including overcurrent protection).19 18 5.8 Degree of protection provided by enclosures.19 19 5.9 Temperature and Humidity range.19 20 5.10 Power System.19 21 5.11 Multipole SPD.19 22 5.12 Short-circuiting type SPD.19 23 6 Preferred Values for SPD.19 24 6.1 Preferred values of impulse discharge current Iimp for class I tests.19 25 6.2 Preferred values of nominal discharge current for class II tests In.19 26 6.3 Preferred values of open-circuit voltage for class III tests Uoc.19 27 6.4 Preferred values of voltage protection level Up.20 28 6.5 Preferred values of r.m.s. maximum continuous operating voltage Uc.20 29 7 Requirements.20 30 7.1 General requirements.20 31 7.2 Electrical requirements.22 32 7.3 Mechanical requirements.24 33 7.4 Environmental and material requirements.26 34 7.5 Additional requirements for specific SPD designs.27 35 7.6 Additional requirements as may be declared by the manufacturer.28 36 8 Type tests.28 37 8.1 General testing procedures.29 38 8.2 Indelibility of markings.38 39 8.3 Electrical tests.38 40 8.4 Mechanical tests.56 41 8.5 Environmental and material tests.67 42 8.6 Additional tests for specific SPD designs.70 43 8.7 Additional tests for specific performance if declared by the manufacturer.73 44 9 Routine and acceptance tests.75 45 9.1 Routine tests.75 46 9.2 Acceptance tests.75 47 oSIST FprEN 61643-11:2009



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3Annex A Reference test voltages for SPDs UREF (normative).76 48 Annex B TOV Ratings
(normative).80 49 B.1 Special distribution system requirements.80 50 Annex C Tests to determine the presence of a switching component and the magnitude 51 of the follow current
(normative).83 52 C.1 Test to determine the presence of a switching (crowbar) component.83 53 C.2 Test to determine the magnitude of the follow current.83 54 Annex D Reduced Test Procedures (normative).84 55 Annex E Alternative circuits for testing SPDs under TOVs caused by faults in the high 56 (medium) voltage system (informative).86 57 Annex F Environmental tests for Outdoor SPDs (informative).87 58 F.1 Accelerated aging test with UV radiation.87 59 F.2 Water immersion test.87 60 F.3 Dielectric test.87 61 F.4 Temperature cycle test.88 62 F.5 Verification of resistance to corrosion.88 63 Annex G Temperature rise limits
(normative).89 64 Annex H Bibliography (informative).90 65 oSIST FprEN 61643-11:2009



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4FIGURES 66
67 Figure 1 Metallic screen test set-up.30 68 Figure 2 Example of a decoupling network for single-phase power.37 69 Figure 3 Example of a decoupling network for three-phase power.37 70 Figure 4 Alternate test for the measured limiting voltage.37 71 Figure 5 Flow chart of testing to check the voltage protection level Up.40 72 Figure 6
Flow chart of the operating duty test.43 73 Figure 7 Circuit diagram for test set-up during operating duty test.44 74 Figure 8 Operating duty test timing diagram for test classes I and II.45 75 Figure 9 Additional duty test timing diagram for test class I.46 76 Figure 10 Operating duty test timing diagram for test class III.46 77 Figure 11 Test circuit for SPDs with Ifi lower than the declared short-circuit 78 rating .50 79 Figure 12 Example of a test circuit to perform the test under TOVs caused by 80 faults in the low voltage system.53 81 Figure 13 Timing diagram for the test under TOVs caused by faults in the low 82 voltage system .54 83 Figure 14 Example of circuit for use in testing SPDs under TOVs caused by 84 faults in high (medium) voltage system according Fehler! Verweisquelle konnte nicht 85 gefunden werden. in d).55 86 Figure 15 Timing diagram for use in testing SPDs under TOVs caused by faults 87 in the high (medium) voltage system using circuit of Figure 14.56 88 Figure 16 Test apparatus for impact test.65 89 Figure 17 Striking element of the pendulum hammer.65 90 Figure 18 Ball thrust tester.68 91 Figure 19 Loading rod for ball thrust tester.68 92 Figure 20 Examples for appropriate test circuits for the
load side short-circuit 93 test(s) .72 94
95 TABLES 96
97 Table 1: List of Abbreviations.16 98 Table 2: Class I, II and III tests.18 99 Table 3: Type test requirements for SPDs.31 100 Table 4: Common pass criteria for type tests.33 101 Table 5: Preferred parameters for class I test.34 102 Table 6: Tests to be performed to determine the measured limiting voltage.41 103 Table 7: Prospective short-circuit current and power factor.48 104 Table 8: Dielectric withstand.52 105 Table 9: Screw thread diameters and applied torques.57 106 Table 10: Cross-sections of copper conductors for screw-type or screwless terminals.58 107 Table 11: Pulling forces (screw terminals).59 108 Table 12: Conductor dimensions.59 109 Table 13: Conductor dimensions.60 110 Table 14: Air clearances for SPDs.62 111 Table 15: Creepage distances for SPDs.63 112 oSIST FprEN 61643-11:2009



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5Table 16: Relationship between material groups and classifications.64 113 Table 17: Relationship between material groups and classifications.66 114 Table 18: test conductors for rated load current test.70 115 Table 19: Current factor k for overload behaviour.71 116 Table 20: Tolerances for proportional surge currents.74 117
118 Table A1: Reference test voltage values.77 119
120 Table B1: TOV test values for Systems complying with IEC 60364 series.80 121 Table B2: TOV test parameters for North American Systems.81 122 Table B3: TOV test parameters for Japanese systems.82 123 oSIST FprEN 61643-11:2009



61643-11 Ed. 1/CDV © IEC
6INTERNATIONAL ELECTROTECHNICAL COMMISSION 124 ____________ 125 LOW-VOLTAGE SURGE PROTECTIVE DEVICES 126
127 Part 11: Surge protective devices connected to low-voltage 128 power distribution systems – Performance requirements and testing 129 methods 130
131 FOREWORD 132 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising 133 all national electrotechnical committees (IEC National Committees). The object of IEC is to promote 134 international co-operation on all questions concerning standardization in the electrical and electronic fields. To 135 this end and in addition to other activities, IEC publishes International Standards, Technical Specifications, 136 Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC 137 Publication(s)”). Their preparation is entrusted to technical committees; any IEC National Committee interested 138 in the subject dealt with may participate in this preparatory work. International, governmental and non-139 governmental organizations liaising with the IEC also participate in this preparation. IEC collaborates closely 140 with the International Organization for Standardization (ISO) in accordance with conditions determined by 141 agreement between the two organizations. 142 2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international 143 consensus of opinion on the relevant subjects since each technical committee has representation from all 144 interested IEC National Committees.
145 3) IEC Publications have the form of recommendations for international use and are accepted by IEC National 146 Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC 147 Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any 148 misinterpretation by any end user. 149 4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications 150 transparently to the maximum extent possible in their national and regional publications. Any divergence 151 between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in 152 the latter. 153 5) IEC provides no marking procedure to indicate its approval and cannot be rendered responsible for any 154 equipment declared to be in conformity with an IEC Publication. 155 6) All users should ensure that they have the latest edition of this publication. 156 7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and 157 members of its technical committees and IEC National Committees for any personal injury, property damage or 158 other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and 159 expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC 160 Publications.
161 8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is 162 indispensable for the correct application of this publication. 163 9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of 164 patent rights. IEC shall not be held responsible for identifying any or all such patent rights. 165 International Standard IEC 61643-11 has been prepared by subcommittee 37A: Low-voltage 166 surge protective devices, of IEC technical committee 37: Surge arresters. 167 This project is based on the complete restructuring of the former IEC 61643-1 and 168 simplification of the test procedures and test sequences. 169 This draft includes the comments that WG5 agreed to in Vienna and Athens. 170 The text of this standard is based on the following documents: 171
172 FDIS Report on voting
173 Full information on the voting for the approval of this standard can be found in the report on 174 voting indicated in the above table. 175 oSIST FprEN 61643-11:2009



61643-11 Ed. 1/CDV © IEC
7Annexes A, B, C and F are normative and Annexes D, E, G and H are informative only. 176 IEC 61643 consists of the following parts, under the general title: Surge protective devices 177 connected to low-voltage power distribution systems: 178 – Part 11: Performance requirements and testing methods. 179 – Part 12: Selection and application principles 180 oSIST FprEN 61643-11:2009



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8INTRODUCTION 181 The present standard addresses safety and performance tests for surge protective devices 182 (SPDs). 183 There are three classes of tests: 184 The Class I test is intended to simulate partial conducted lightning current impulses. SPDs 185 subjected to Class I test methods are generally recommended for locations at points of high 186 exposure, e.g., line entrances to buildings protected by lightning protection systems. 187 SPDs tested to Class II or III test methods are subjected to impulses of shorter duration.
188 All SPDs are tested on a “black box” basis as far as possible. 189 Part 12 addresses the selection and application principles of SPDs in practical situations. 190
191 This International Standard IEC 61643-11 has been prepared by subcommittee 37A: Low-voltage surge protective 192 devices, of IEC technical committee 37: Surge arresters. 193 The text of this document is based on the following documents: 194
195 FDIS Report on voting
196 Full information on the voting for the approval of this amendment can be found in the report on voting indicated in 197 the above table. 198 The committee has decided that the contents of the base publication and its amendments will remain unchanged 199 until xxxx. At this date1, the publication will be
200 • reconfirmed; 201 • withdrawn; 202 • replaced by a revised edition, or 203 • amended 204
205 IEC 61643-11: Low-voltage surge protective devices – Part 11: Surge protective devices connected to low-voltage 206 power distribution systems – Performance requirements and testing methods 207 ————————— 1 The National Committees are requested to note that for this publication the maintenance result date is 2013.
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9LOW-VOLTAGE SURGE PROTECTIVE DEVICES 208
209 Part 11: Surge protective devices connected to low-voltage 210 power distribution systems – Performance requirements and testing 211 methods 212
213 1 Scope 214 This part of IEC 61643 is applicable to devices for surge protection against indirect and direct 215 effects of lightning or other transient overvoltages. These devices are packaged to be 216 connected to 50/60 Hz a.c. power circuits, and equipment rated up to 1,000 V r.m.s. 217 Performance characteristics, standard methods for testing and ratings are established. These 218 devices contain at least one nonlinear component and are intended to limit surge voltages 219 and divert surge currents.
220 2 Normative references 221 The following normative documents contain provisions, which, through reference in this text, 222 constitute provisions of this part of IEC 61643. At the time of publication, the editions 223 indicated were valid. All normative documents are subject to revision, and parties to 224 agreements based on this part of IEC 61643 are encouraged to investigate the possibility of 225 applying the most recent editions of the normative documents indicated below. Members of 226 IEC and ISO maintain registers of currently valid International Standards. 227 IEC 60060-1, High-voltage test techniques – Part 1: General definitions and test requirements 228 IEC 60068-2-14:1986, Tests. Test N: Change of temperature 229 IEC 60099-4:2004, Surge arresters – Part 4: Metal oxide surge arresters without gaps for a.c. 230 systems 231 IEC 60112, Method for the determination of the proof and the comparative tracking indices of 232 solid insulating materials 233 IEC 60320 (all parts), Appliance couplers for household and similar general purposes 234 IEC 60529 Degrees of protection provided by enclosures (IP Code) 235 IEC 60664-1:2002, Insulation coordination for equipment within low-voltage systems - Part 1: 236 Principles, requirements and tests 237 IEC 60695-2-11:xxx, Fire hazard testing – Part 2-11: Test method - Glow wire end-product 238 test and guidance 239 IEC 60884-1:1994, Plugs and socket outlets for household and similar purposes – Part 1: 240 General requirements; Amendment 1 (1994); Amendment 2 (1995) 241 IEC 60947-1:1996, Low voltage switchgear and control gear – Part 1: General rules 242 IEC 61643-12: Surge protective devices connected to low-voltage power distribution systems 243 - Part 12: Selection and application principles 244 IEC 61180-1, High-voltage test techniques for low voltage equipment – Part 1: Definitions, test 245 and procedure requirements 246 oSIST FprEN 61643-11:2009



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10IEC 60364-4-44:2007, Electrical installations of buildings – Part 4-44: Protection for safety – 247 Protection against voltage disturbances and electromagnetic disturbances
248 IEC 60364-5-51: Electrical installations of buildings –Part 5-51: Selection and erection of 249 electrical equipment – Common rules 250 IEC 60364-5-53 Electrical Installations of buildings selection and erection of electrical 251 equipment, isolation, switching and, control.
252 3 Definitions and Abbreviations 253 For the purpose of this part of IEC 61643, the following definitions apply. 254 3.1
255 surge protective device 256 SPD 257 device that contains at least one nonlinear component that is intended to limit surge voltages 258 and divert surge currents 259 NOTE: An SPD is a complete assembly, having appropriate connecting means.
260 3.2
261 one-port SPD 262 SPD having no intended series impedance 263 NOTE: A one port SPD may have separate input and output connections. 264 3.3
265 two-port SPD 266 SPD having a specific series impedance connected between separate input and output 267 connections 268 3.4
269 voltage switching type SPD 270 SPD that has a high impedance when no surge is present, but can have a sudden change in 271 impedance to a low value in response to a voltage surge 272 NOTE Common examples of components used in voltage switching type SPDs are spark gaps, gas tubes and 273 thyristors. These are sometimes called "crowbar type" components 274 3.5
275 voltage limiting type SPD 276 SPD that has a high impedance when no surge is present, but will reduce it continuously with 277 increased surge current and voltage 278 NOTE Common examples of components used in voltage limiting type SPDs are varistors and avalanche 279 breakdown diodes. These are sometimes called "clamping type" components. 280 3.6
281 combination type SPD 282 SPD that incorporates both, voltage switching components and voltage limiting components. 283 The SPD may exhibit voltage switching, limiting or both 284 3.7
285 short-circuiting type SPD 286 SPD tested according to Class II tests which changes its characteristic to an intentional 287 internal short-circuit due to a surge current exceeding its nominal discharge current In 288 oSIST FprEN 61643-11:2009



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113.8
289 mode of protection of a SPD 290 an intended current path, between terminals that contains protective components, e.g. line-to-291 line, line-to-earth, line-to-neutral, neutral-to-earth. 292 3.9
293 nominal discharge current
294 In 295 crest value of the current through the SPD having a current waveshape of 8/20 296 NOTE: In is used for the determination of the residual voltage and for the operating duty test for test class II 297 3.10
298 impulse discharge current for class I test 299 Iimp 300 crest value of a discharge current through the SPD with specified charge transfer Q and 301 specified energy W/R in the specified time 302 3.11
303 maximum continuous operating voltage 304 UC 305 maximum r.m.s. voltage, which may be continuously applied to the SPD´s mode of protection 306 NOTE: The UC value covered by this document may exceed 1000 V. 307 3.12
308 follow current 309 If 310 peak current supplied by the electrical power system and flowing through the SPD after a 311 discharge current impulse 312 3.13
313 rated load current 314 IL 315 maximum continuous rated r.m.s. current that can be supplied to a resistive load connected to 316 the protected output of an SPD 317 3.14
318 voltage protection level 319 Up 320 maximum voltage to be expected at the SPD terminals due to an impulse stress with defined 321 voltage steepness and an impulse stress with a discharge current with given amplitude and 322 waveshape. 323 NOTE: The voltage protection level is given by the manufacturer and may not be exceeded by: 324 - the measured limiting vol
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