IEC 62561-3-2017 Lightning protection system components (LPSC) - Part 3 Requirements for isolating spark gaps (ISG)《避雷系统组件(LPSC).第3部分 隔离火花间隙的要求(ISG)》.pdf

1、 IEC 62561-3 Edition 2.0 2017-06 INTERNATIONAL STANDARD Lightning protection system components (LPSC) Part 3: Requirements for isolating spark gaps (ISG) IEC 62561-3:2017-06(en) THIS PUBLICATION IS COPYRIGHT PROTECTED Copyright 2017 IEC, Geneva, Switzerland All rights reserved. Unless otherwise spec

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10、u wish to give us your feedback on this publication or need further assistance, please contact the Customer Service Centre: csciec.ch. IEC 62561-3 Edition 2.0 2017-06 INTERNATIONAL STANDARD Lightning protection system components (LPSC) Part 3: Requirements for isolating spark gaps (ISG) INTERNATIONA

11、L ELECTROTECHNICAL COMMISSION ICS 91.120.40 ISBN 978-2-8322-4455-5 Registered trademark of the International Electrotechnical Commission Warning! Make sure that you obtained this publication from an authorized distributor. 2 IEC 62561-3:2017 IEC 2017 CONTENTS FOREWORD . 4 INTRODUCTION . 6 1 Scope 7

12、2 Normative references 7 3 Terms and definitions 8 4 Classification . 9 4.1 According to ISGs capability to withstand lightning current 9 4.2 According to ISGs location installation 9 5 Requirements 10 5.1 General . 10 5.2 Environmental requirements . 10 5.3 Installation instructions . 10 5.4 Lightn

13、ing current carrying capability 10 5.5 Rated impulse sparkover voltage 10 5.6 Rated withstand voltage 10 5.6.1 Rated DC withstand voltage . 10 5.6.2 Rated power frequency withstand voltage 10 5.7 Isolation resistance . 10 5.8 Marking . 11 5.9 UV (ultraviolet) resistance . 11 6 Tests . 11 6.1 General

14、 conditions for tests 11 6.2 UV (ultraviolet) light test . 12 6.3 Resistance tests to corrosion 12 6.4 Mechanical tests . 12 6.5 Electrical tests 14 6.5.1 Isolation resistance 14 6.5.2 Withstand voltage 14 6.5.3 Rated impulse sparkover voltage . 15 6.5.4 Lightning current 15 6.6 Installation instruc

15、tions . 16 6.6.1 General conditions for tests . 16 6.6.2 Acceptance criteria 16 6.7 Marking test 16 6.7.1 General conditions for tests . 16 6.7.2 Acceptance criteria 16 7 Electromagnetic compatibility (EMC) . 16 8 Structure and content of the test report 16 8.1 General . 16 8.2 Report identification

16、 17 8.3 Specimen description 17 8.4 Standards and references . 17 8.5 Test procedure 17 8.6 Testing equipment description 18 8.7 Measuring instruments description 18 8.8 Results and parameters recorded . 18 IEC 62561-3:2017 IEC 2017 3 8.9 Statement of pass/fail . 18 Annex A (normative) Flow chart of

17、 tests . 19 Annex B (normative) Environmental test for isolating spark gaps . 21 B.1 General . 21 B.2 Salt mist treatment 21 B.3 Humid sulphurous atmosphere treatment 21 B.4 Ammonia atmosphere treatment 21 Annex C (normative) Environmental test for outdoor isolating spark gaps Resistance to ultravio

18、let light 22 C.1 General . 22 C.2 The tests . 22 C.3 First alternative test to C.2 22 C.4 Second alternative test to C.2 . 22 Bibliography 23 Figure 1 Pendulum hammer test apparatus 13 Figure A.1 Flow chart of the sequence of tests for ISGs . 20 Table 1 Lightning impulse current (I imp ) parameters

19、15 4 IEC 62561-3:2017 IEC 2017 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ LIGHTNING PROTECTION SYSTEM COMPONENTS (LPSC) Part 3: Requirements for isolating spark gaps (ISG) FOREWORD 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising all

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28、sonal injury, property damage or other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC Publications. 8) Attention is drawn to the Normative re

29、ferences cited in this publication. Use of the referenced publications is indispensable for the correct application of this publication. 9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of patent rights. IEC shall not be held responsible f

30、or identifying any or all such patent rights. International Standard IEC 62561-3 has been prepared by IEC technical committee 81: Lightning protection. This second edition cancels and replaces the first edition, published in 2012. This edition constitutes a technical revision. This edition includes

31、the following significant technical changes with respect to the previous edition. a) a new classification has been added related to ISGs location installation; b) an updated flow chart of tests has been developed. IEC 62561-3:2017 IEC 2017 5 The text of this International Standard is based on the fo

32、llowing documents: FDIS Report on voting 81/561/FDIS 81/566/RVD Full information on the voting for the approval of this International Standard can be found in the report on voting indicated in the above table. This document has been drafted in accordance with the ISO/IEC Directives, Part 2. A list o

33、f all parts in the IEC 62561 series, published under the general title Lightning protection system components (LPSC), can be found on the IEC website. The committee has decided that the contents of this document will remain unchanged until the stability date indicated on the IEC website under “http:

34、/webstore.iec.ch“ in the data related to the specific document. At this date, the document will be reconfirmed, withdrawn, replaced by a revised edition, or amended. A bilingual version of this publication may be issued at a later date. 6 IEC 62561-3:2017 IEC 2017 INTRODUCTION This part of IEC 62561

35、 deals with the requirements and tests for lightning protection system components (LPSC), specifically isolating spark gaps (ISG) used for the installation of a lightning protection system (LPS) designed and implemented according to the IEC 62305 series. IEC 62561-3:2017 IEC 2017 7 LIGHTNING PROTECT

36、ION SYSTEM COMPONENTS (LPSC) Part 3: Requirements for isolating spark gaps (ISG) 1 Scope This part of IEC 62561 specifies the requirements and tests for isolating spark gaps (ISG) for lightning protection systems. ISGs can be used to indirectly bond a lightning protection system to other nearby meta

37、lwork where a direct bond is not permissible for functional reasons. Typical applications include the connection to earth-termination systems of power installations, earth-termination systems of telecommunication systems, auxiliary earth electrodes of voltage-operated, earth fault circuit breakers,

38、rail earth electrode of power and DC railways, measuring earth electrodes for laboratories, installations with cathodic protection and stray current systems, service entry masts for low-voltage overhead cables, bypassing insulated flanges and insulated couplings of pipelines. This does not cover app

39、lications where follow currents occur. NOTE Lightning protection system components (LPSC) can also be suitable for use in hazardous conditions such as fire and explosive atmosphere. Due regard will be taken of the extra requirements necessary for the components to be installed in such conditions. 2

40、Normative references The following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including a

41、ny amendments) applies. IEC 60068-2-52:1996, Environmental testing Part 2-52: Tests Test Kb: Salt mist, cyclic (sodium chloride solution) 1IEC 60068-2-75:1997, Environmental testing Part 2-75: Tests Test Eh: Hammer tests 2_ 12 ndedition (1996). A 3 rdedition IEC 60068-2-52: Environmental testing Par

42、t 2-52: Tests Test Kb: Salt mist, cyclic (sodium chloride solution) is under preparation. Stage at the time of publication: IEC PRVC 60068-2-52:2017. 21 stedition (1997). This 1 stedition was replaced in 2014 by a 2 ndedition IEC 60068-2-75:2014, Environmental testing Part 2-75: Tests Test Eh: Hamme

43、r tests. 8 IEC 62561-3:2017 IEC 2017 ISO 4892-2:2006, Plastics Methods of exposure to laboratory light sources Part 2: Xenon- arc lamps 3IEC 62561-1, Lightning protection system components (LPSC) Part 1: Requirements for connection components ISO 4892-3:2006, Plastics Methods of exposure to laborato

44、ry light sources Part 3: Fluorescent UV lamps 4ISO 4892-4, Plastics Methods of exposure to laboratory light sources Part 4: Open-flame carbon-arc lamps ISO 6957:1988, Copper alloys Ammonia test for stress corrosion resistance ISO 6988:1985, Metallic and other non-organic coatings Sulphur dioxide tes

45、t with general condensation of moisture 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. ISO and IEC maintain terminological databases for use in standardization at the following addresses: IEC Electropedia: available at http:/www.electropedia.org

46、/ ISO Online browsing platform: available at http:/www.iso.org/obp 3.1 isolating spark gap ISG component with discharge distance for isolating electrically conductive installation sections Note 1 to entry: In the event of a lightning strike, the isolated sections are temporarily connected conductive

47、ly as the result of response to the discharge. 3.2 sparkover voltage maximum voltage value before disruptive discharge between the electrodes of the ISG 3.3 withstand voltage value of the test voltage to be applied under specified conditions in a withstand test, during which a specified number of di

48、sruptive discharges is tolerated 3.4 power frequency withstand voltage r.m.s value of a sinusoidal power frequency voltage that the ISG can withstand 3.5 DC withstand voltage value of a DC voltage that the ISG can withstand _ 32 ndedition (2006). This 2 ndedition was replaced in 2013 by a 3 rdeditio

49、n ISO 4892-2:2013, Plastics Methods of exposure to laboratory light sources Part 2: Xenon-arc lamps. 42 ndedition (2006). This 2 ndedition was replaced in 2016 by a 3 rdedition: ISO 4892-3: 2016, Plastics Methods of exposure to laboratory light sources Part 3: Fluorescent UV lamps. IEC 62561-3:2017 IEC 2017 9 3.6 rated withstand voltage value of a withstand voltage declared by the manufacturer to characterize t