IEC IEC60664-3
Edition 3.0 2016-11 INTERNATIONAL STANDARD
NORME INTERNATIONALE
BASIC SAFETYPUBLICATION PUBLICATIONFONDAMENTALEDESECURITE 使用涂层，灌封或模塑来防止污染 Insulationcoordinationforequipmentwithinlow-voltagesystems- Part3:Use of coating potting ormoulding forprotection againstpollution Coordination de Iisolement desmateriels dans les systemes(reseaux)a basse tension- Partie3:Utilisation derevetement d'empotageoude moulagepourlaprotection contrelapollution
INTERNATIONAL ELECTROTECHNICAL COMMISSION COMMISSION ELECTROTECHNIQUE INTERNATIONALE
ICS 29.080.30 ISBN 978-2-8322-3693-2
Warning!Make sure that you obtained this publication from an authorized distributor.
IEC 60664-3:2016IEC2016 使用涂层，灌封或模塑来防止污染CONTENTS FOREWORD.4 INTRODUCTION..6 1Scope..7 2Normative references.... 3Terms and definitions.8 4Design requirements....9 4.1Principles.关于环境的应用范围.9 4.2Application range with regards to the environment...9 4.3Requirementsfor the typesofprotection.保护类型的要求..10 4.4Dimensioningprocedures...尺寸标主.......10 5Tests..11 5.1General. 5.2Specimens for testing coatings..11 5.3Specimens for testing mouldings andpotting.12 5.4Preparation of test specimens...12 5.5Visual examination...12 5.6Scratch-resistance test...1.2 5.7Conditioning of the test specimens......3 5.7.1General.13 5.7.2Cold conditioning..13 5.7.3Dry-heat conditioning...13 5.7.4Rapid change of temperature.....14 5.7.5Damp heat steady-state with polarizing voltage..15 5.8Mechanical and electrical tests after conditioning and electromigration..15 5.8.1General test conditions15 5.8.2Adhesion of coating....15 5.8.3Insulation resistance between conductors......16 5.8.4Voltage test...16 5.8.5Partial discharge extinction voltage.16 5.9Additional tests.16 5.9.1General.16 5.9.2Resistance to soldering heat...7 5.9.3Flammability.17 5.9.4Solvent resistance.17 Annex A（normative) Test sequences..18 Annex B(normative)Decisions to be taken by the technical mittees....0 B.1 General..20 B.2 Decisions requiredby technical mittees....20 B.3 Optional test conditions...20 Annex C (normative)Printed wiring board for testing coatings.21 C.1 General..21 C.2 Specification of the printed wiring board...21 C.3 Arrangement of the conductors21 C.4 Arrangement of lands..22 C.5 Connections for the tests22 Bibliography......25
IEC60664-3:2016IEC20163
Figure 1- Scratch-resistance test for protecting layers13 Figure C.1 - Configuration of the test specimen.23 Figure C.2 - Configuration of lands and adjacent conductors..24 Table1- Minimum spacings for type 2protection..10 Table 2 - Dry-heat conditioning..14 Table 3 - Degrees of severities for rapid change of temperature..14 Table A.1-Test sequence 1 Table A.2-Test sequence 2additional conditioning with respect to electromigration.19 Table A.3 - Additional tests ...19
4-IEC60664-3:2016IEC2016 INTERNATIONALELECTROTECHNICALCOMMISSION
INSULATIONCOORDINATIONFOREQUIPMENT WITHINLOW-VOLTAGESYSTEMS- Part3:Use ofcoating potting ormoulding forprotectionagainstpollution FOREWORD 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization prisingall national electrotechnical mittees (IEC National Committees）. The object of IEC is to promote this end and in addition to other activities IEC publishes International Standards Technical Specifications international co-operation on all questions concerning standardization in the electrical and electronic fields. To Technical Reports Publily Available Specifications （PAS）and Guides (hereafter referred to as“IEC Publication(s)). Their preparation is entrusted to technical mittees: any IEC National Committee interested in the subject dealt withmayparticipate in this preparatory work Internationalgovernmental andnon governmental organizations liaising with the IEC also participate in this preparation. IEC collaborates closely agreement between the two organizations. 2)The formal decisions or agreements of IEC on technical matters express as nearly as possible an international interested IEC National Committees.
misinterpretation by any end user. Publications is accurate IEC cannot be held responsible for the way in which they are used or for any 4)In order to promote international uniformity IEC National Committees undertake to apply IEC Publications transparently to the maximum extent possible in their nationaland regional publications.Any divergence the latter. services carried out by independent certification bodies. assessment services andin some areas access to IEC marks of conformity. IEC is not responsible for any 6) All users should ensure that they have the latest edition of this publication. 7) No liability shall attach to IEC or its directors employees servants or agents including individual experts andmembers of its technical mittes and IEC National Committees for anypersonal injury.property damage or other damage of any nature whatsoever whether direct or indirect or for costs (including legal fees） and Publications. expenses arising out of the publication use of or reliance upon this IEC Publication or any other IEC indispensable for the correct application of this publication.8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is patent rights. IEC shall not be held responsible for identitying any or all such patent rights.9)Attention is drawn to the possibiity that some of the elements of this IEC Publication may be the subject of International Standard IEC 60664-3 has been prepared by IEC technical mittee TC 109: Insulation co-ordination for low-voltage equipment. It has the status of a basic safety publication in accordance with IEC Guide 104.
1:2010. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: a) information added concerning interpolation; b)provided scratch test is only for type 2 protection;
IEC 60664-3:2016 IEC 2016-5- c)renumbered the scratch test to follow the visual examination test since it makes more sense there; d)separated the tables under what is now called Annex A to make them clearer. The text of this standard is based on the following documents: FDIS Report on voting 109/153/FDIS109/154/RVD Full information on the voting for the approval of this standard can be found in the report on voting indicated in the above table. This publication has been drafted in accordance with the ISO/IEC Directives Part 2. In this standard the following types are used:
A list ofall parts in the IEC 60664 series published under the general tile Insulation coordinationfor equipment within low-voltage systems can befound on the IECwebsite. The mittee has decided that the contents of this publication will remain unchanged until related to the specific publication. At this date the publication will be reconfirmed withdrawn replaced by a revised edition or amended.
IEC60664-3-2016低压系统内设备的绝缘配合第3部分用于污染防护的涂层、封装或模塑的使用.pdf
