IEC_IEEE_60079-30-1-2015.pdf

IEC/IEEE 60079-30-1 Edition 1.0 2015-09 INTERNA TIONAL STA NDA RD Explosiv e atmospheres Part 30-1:Electrical resistance trace heating General and testing requirements IEC/IEEE 60079-30-1:2015-09(en)colourinsideCopyright International Electrotechnical Commission THIS PUBLICA TION IS COPYRIGHT PROTECTED Copyright 2015 IEC,Geneva,Switzerland Copyright 2015 IEEE All r ights reserved.Unless other wise specified,no part of this publication may be reproduced or utilized in any form or by any means,electronic or mechanical,including photocopying and microfilm,without permission in writing being secured.Requests for per mission to r eproduce should be addressed to either IEC at the address below or IECs member National Committee in the country of the requester or fr om IEEE.IEC Centr al Office Institute of Electrical and Electronics Engineers,Inc.3,rue de Varemb 3 Par k Avenue CH-1211 Geneva 20 New Yor k,NY 10016-5997 Switzerland United States of America Tel.:+41 22 919 02 11 stds.iprieee.org Fax:+41 22 919 03 00 www.ieee.org infoiec.ch www.iec.ch About t he IEC The International Electr otechnical Commission(IEC)is the leading global organization that prepar es and publishes Inter national Standards for all electr ical,electronic and related technologies.About t he IEEE IEEE is the worlds largest professional association dedicated to advancing technological innovation and excellence for the benefit of humanity.IEEE and its member s inspire a global community through its highly cited publications,conferences,technology standar ds,and prof essional and educational activities.About IEC/IEEE publications The technical content of IEC/IEEE publications is kept under constant r eview by the IEC and IEEE.Please make sure that you have the latest edition,a cor rigendum or an amendment might have been published.IEC Cat alogue-webstore.iec.ch/cat alogue The stand-alone application for consulting the entire bibliographical information on IEC International Standards,Technical Specifications,Technical Reports and other documents.A vailable for PC,Mac OS,A ndroid Tablets and iPad.IEC publications search-w w w.iec.ch/searchpub The adv anced search enables to find IEC publications by a variety of criteria(reference number,text,technical committee,).It also giv es information on projec ts,replaced and withdrawn publications.IEC Just Published-webstore.iec.ch/justpublished Stay up to date on all new IEC publications.Just Published details all new publications released.Av ailable online and also once a month by email.Elect ropedia-w w w.elect ropedia.org The worlds leading online dic tionary of electronic and electrical terms containing more than 30 000 terms and definitions in English and French,with equiv alent terms in 15 additional languages.Also known as the International Elec trotechnical Vocabulary (IEV)online.IEC Glossar y-st d.iec.ch/glossary More than 60 000 elec trotechnic al terminology entries in English and French extracted from the Terms and Definitions clause of IEC publications issued since 2002.Some entries hav e been collec ted from earlier publications of IEC TC 37,77,86 and CISPR.IEC Customer Serv ice Centre-webstore.iec.ch/csc If y ou wish to giv e us y our feedback on this publication or need further assistance,please contac t the Customer Serv ice Centre:csciec.ch.Copyright International Electrotechnical Commission IEC/IEEE 60079-30-1 Edit ion 1.0 2015-09 INTER NA TIONAL STA NDA R D Explosiv e atmospheres Part 30-1:Electrical resistance trace heating General and testing requirements INTERNATIONAL ELECTROTECHNICAL COMMISSION ICS 29.260.20 ISBN 978-2-8322-2758-9 Warning!Make sure that you obtained this publication from an authorized distributor.R egist er ed tr ademar k of t he Int er national Electr ot echnical Commission colourinsideCopyright International Electrotechnical Commission 2 IEC/IEEE 60079-30-1:2015 IEC/IEEE 2015 CONTENTS FOREWORD.5 INTRODUCTION.10 1 Scope.11 2 Normative references.15 3 Terms and definitions.16 4 General requirements.22 4.1 General.22 4.2 Mechanical strength.22 4.3 Terminations and connections.23 4.4 Circuit protection requirements for branch circuits.23 4.5 Temperature requirements.23 4.5.1 General.23 4.5.2 Stabilized design.24 4.5.3 Controlled design.24 5 Testing.26 5.1 Type tests.26 5.1.1 General.26 5.1.2 Dielectric test.26 5.1.3 Electrical insulation resistance test.27 5.1.4 Flammability test.27 5.1.5 Impact tests.29 5.1.6 Deformation test.32 5.1.7 Cold bend test.32 5.1.8 Water resistance test.33 5.1.9 Integral components resistance to water test.33 5.1.10 Verification of rated output.34 5.1.11 Thermal stability of electrical insulating material.36 5.1.12 Thermal performance test.36 5.1.13 Determination of maximum sheath temperature.38 5.1.14 Verification of start-up current.46 5.1.15 Verification of the electrical resistance of electrically conductive covering.46 5.1.16 Outdoor exposure test.47 5.2 Routine tests.47 5.2.1 Dielectric test.47 5.2.2 Verification of rated output.47