IEC IEC60153-1 Edition 2.02016-05 INTERNATIONAL STANDARD NORME INTERNATIONALE Hollowmetallicwaveguides Part 1:General requirements and measuring methods Guidesd'ondesmetalliquescreux Partie1:Exigencesgeneralesetmethodesdemesure IEC 60153-1:2016-05(en-fr IEC IEC60153-1 Edition2.0 2016-05 INTERNATIONAL STANDARD NORME INTERNATIONALE Hollowmetallicwaveguides- Part1:General requirements and measuring methods Guidesd'ondesmetalliquescreux- Partie1:Exigencesgeneralesetmethodesdemesure INTERNATIONAL ELECTROTECHNICAL COMMISSION COMMISSION ELECTROTECHNIQUE INTERNATIONALE ICS 33.120.10 ISBN 978-2-8322-3382-5 Warning!Make surethat you obtained this publication from an authorized distributor. Attention!Veuillezvousassurerquevousavezobtenucettepublicationviaundistributeuragree. @Regis ofthe Inte ical Con Marque deposee de la Com missionElectrotechniquelntemationale - 2 - IEC60153-1:2016IEC2016 CONTENTS FOREWORD 3 INTRODUCTION 1 Scope.. ..6 2 Normativereferences. .6 3 Terms and definitions 4 Type designation 4.1 Type. 4.2 Designation. 5 Standard atmospheric conditions for testing .8 6 Visual inspection ..8 7 Mechanical requirements .8 7.1 Dimensions ..8 7.1.1 General .. 7.1.2 Ordinary rectangularwaveguides 7.1.3 Rectangularityof cross-section. ..10 7.1.4 Flat rectangular waveguides. .10 7.1.5 Circularwaveguides.. 11 7.2 Othermechanical requirements.. 11 7.2.1 Bow.. 11 7.2.2 Twist.. 7.2.3 Surfaceroughness 7.2.4 Internal stress. Electrical tests. 8 .12 8.1 Attenuation 8.2 Internal reflections from irregularity ofinternal dimensions 9 Additional tests-Gastightness. 14