1、 IEC 62395-1 Edition 2.0 2013-09 INTERNATIONAL STANDARD NORME INTERNATIONALE Electrical resistance trace heating systems for industrial and commercial applications Part 1: General and testing requirements Systmes de traage par rsistance lectrique pour applications industrielles et commerciales Parti
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16、ch. IEC 62395-1 Edition 2.0 2013-09 INTERNATIONAL STANDARD NORME INTERNATIONALE Electrical resistance trace heating systems for industrial and commercial applications Part 1: General and testing requirements Systmes de traage par rsistance lectrique pour applications industrielles et commerciales P
17、artie 1: Exigences gnrales et dessai INTERNATIONAL ELECTROTECHNICAL COMMISSION COMMISSION ELECTROTECHNIQUE INTERNATIONALE X ICS 25.180.10 PRICE CODE CODE PRIX ISBN 978-2-8322-1079-6 Registered trademark of the International Electrotechnical Commission Marque dpose de la Commission Electrotechnique I
18、nternationale Warning! Make sure that you obtained this publication from an authorized distributor. Attention! Veuillez vous assurer que vous avez obtenu cette publication via un distributeur agr. colourinside 2 62395-1 IEC:2013 CONTENTS FOREWORD . 4 INTRODUCTION . 6 1 Scope . 7 2 Normative referenc
19、es . 8 3 Terms and definitions . 8 4 General requirements . 13 4.1 General . 13 4.2 Electrically conductive covering . 13 4.3 Electrical circuit protection requirements for branch circuits 13 4.4 Temperature requirements 14 General . 14 4.4.1Stabilized design . 14 4.4.2Controlled design 14 4.4.35 Te
20、sting . 14 5.1 Type tests General . 14 5.2 Type tests All applications 14 Dielectric test 14 5.2.1Electrical insulation resistance test 15 5.2.2Flammability test . 16 5.2.3Room temperature impact test . 17 5.2.4Minimum temperature impact test 19 5.2.5Deformation test 20 5.2.6Cold bend test . 21 5.2.
21、7Water resistance test . 22 5.2.8Integral components resistance to water test . 22 5.2.9Verification of rated output . 23 5.2.10Thermal stability of electrical insulating material 25 5.2.11Thermal performance test for parallel trace heaters . 26 5.2.12Determination of maximum sheath temperature . 27
22、 5.2.13Verification of start-up current . 34 5.2.14Verification of the electrical resistance of the electrically conductive 5.2.15covering 34 Strain relief test for connections (terminations) 34 5.2.165.3 Type tests Additional tests for outdoor exposed surface heating installations without thermal i
23、nsulation 35 Verification of rated output . 35 5.3.1Determination of maximum sheath temperature . 35 5.3.2Increased moisture resistance test 35 5.3.3UV test 35 5.3.4Resistance to cutting test 35 5.3.5Abrasion test . 35 5.3.6Tension test . 36 5.3.7Rail system voltage spike test . 36 5.3.8Rail system
24、over-voltage test . 37 5.3.95.4 Type tests Additional tests and test modifications for embedded heating applications . 37 Verification of rated output . 37 5.4.162395-1 IEC:2013 3 Determination of maximum sheath temperature . 37 5.4.2Resistance to cutting test 37 5.4.3Flammability test . 37 5.4.45.5
25、 Type tests Additional tests for applications of trace heating internal to conduit and piping . 37 Verification of rated output . 37 5.5.1Determination of maximum sheath temperature . 37 5.5.2Increased moisture resistance test 37 5.5.3Pull-strength test . 38 5.5.45.6 Type tests Additional requiremen
26、ts for sprinkler systems 38 Normal and abnormal operation test 38 5.6.1Normal operation test 38 5.6.2Abnormal operation test . 41 5.6.35.7 Routine tests . 41 Dielectric test 41 5.7.1Verification of rated output . 41 5.7.26 Marking 41 6.1 General . 41 6.2 Product markings 42 7 Installation instructio
27、ns . 42 Bibliography 44 Figure 1 Flammability test 17 Figure 2 Room temperature impact test . 18 Figure 3 Example of room temperature impact test apparatus 19 Figure 4 Example of minimum temperature impact test apparatus 20 Figure 5 Cold bend test 22 Figure 6 Moisture resistance test . 23 Figure 7 V
28、erification of rated output . 25 Figure 8 Pipe fixture. 29 Figure 9 Plate fixture 30 Figure 10 Plate fixture when trace heaters are allowed to touch . 31 Figure 11 Maximum sheath temperature using the product approach . 34 Figure 12 Abrasion test 36 Figure 13 Sprinkler system temperature control tes
29、t branch line arrangement . 39 Figure 14 Sprinkler system temperature control test branch line alternative arrangement . 40 Figure 15 Sprinkler system temperature control test supply pipe arrangement 40 Table 1 Test voltages for the dielectric test 15 Table 2 Product marking 42 4 62395-1 IEC:2013 IN
30、TERNATIONAL ELECTROTECHNICAL COMMISSION _ ELECTRICAL RESISTANCE TRACE HEATING SYSTEMS FOR INDUSTRIAL AND COMMERCIAL APPLICATIONS Part 1: General and testing requirements FOREWORD 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising all nat
31、ional electrotechnical committees (IEC National 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, Technic
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33、International, governmental and non-governmental organizations liaising with the IEC also participate in this preparation. IEC collaborates closely with the International Organization for Standardization (ISO) in accordance with conditions determined by agreement between the two organizations. 2) Th
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36、ser. 4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications transparently to the maximum extent possible in their national and regional publications. Any divergence between any IEC Publication and the corresponding national or regional publicatio
37、n shall be clearly indicated in the latter. 5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any services carried out by independent
38、certification bodies. 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 and members of its technical committees and IEC National Committees for any persona
39、l 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 refere
40、nces 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 for i
41、dentifying any or all such patent rights. International Standard IEC 62395-1 has been prepared by IEC technical committee 27: Industrial electroheating and electromagnetic processing. This second edition cancels and replaces the previous edition published in 2006 and constitutes a technical revision
42、 This edition includes the following significant technical changes with respect to the previous edition: Tests have been added for trace heating on sprinkler systems; The flammability test has been changed to align with the latest draft of future IEC/IEEE 60079-30-11; 1Under consideration. 62395-1
43、IEC:2013 5 A supplementary test has been added for the verification of sheath temperature using trace heating mounted on a plate fixture. The text of this standard is based on the following documents: FDIS Report on voting 27/926/FDIS 27/935/RVD Full information on the voting for the approval of thi
44、s 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. A list of all parts in the IEC 62395 series, published under the general title Electrical resistance trace heating systems for industrial
45、 and commercial applications, 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:/webstore.iec.ch“ in the data related to the specific publication. At this date, the
46、 publication will be reconfirmed, withdrawn, replaced by a revised edition, or amended. IMPORTANT The colour inside logo on the cover page of this publication indicates that it contains colours which are considered to be useful for the correct understanding of its contents. Users should therefore pr
47、int this document using a colour printer. 6 62395-1 IEC:2013 INTRODUCTION IEC 62395-1 provides the essential requirements and testing appropriate to electrical resistance trace heating equipment used in industrial and commercial applications. While some of this work already exists in national or int
48、ernational standards, this standard has collated much of this existing work and added considerably to it. IEC 62395-2 provides detailed recommendations for the system design, installation and maintenance of electric trace heating systems in industrial and commercial applications. It is the objective
49、 of IEC 62395 that, when in normal use, electrical trace heating systems operate safely under their defined conditions of use, by a) employing heaters of the appropriate construction and meeting the test criteria detailed in IEC 62395-1. The construction includes a metallic sheath, braid, screen or equivalent electrically conductive covering; b) operating at safe temperatures
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