ISO/TS TECHNICAL SPECIFICATION 17902 First edition 2016-11-15 Wrapped electrofoaming joints for polyethylene (PE) piping systems with smooth outer wall for gravity drains and sewers Enveloppes d'assemblage électro-expansibles pour les systemes de canalisations en polyéthylene (PE) a paroi extérieure lisse pour les collecteurs et branchements d'assainissement gravitaire Reference number ISO/TS 17902:2016(E) OSI International Organization for Standardization @IS02016 ted without license from IHS IS0/TS 17902:2016(E) COPYRIGHT PROTECTED DOCUMENT IS0 2016, Published in Switzerland All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below or ISO's member body in the country of the requester. ISO copyright office Ch. de Blandonnet 8 . CP 401 CH-1214 Vernier, Geneva, Switzerland Tel. +41 22 749 01 11 Fax +41 22 749 09 47 [email protected] www.iso.org networking permited without license from IHS IS0/TS 17902:2016(E) Contents Page Foreword ..iv Introduction. .V 1 Scope. .1 2 Normative references ..1 3 Terms and definitions. .2 3.1 General terms and definitions .2 3.2 Geometrical terms and definitions 3.3 Material terms and definitions. .3 4 Symbols and abbreviated terms ..4 4.1 Symbols .4 4.2 Abbreviated terms .4 5 Material .4 5.1 Material for the main layer .4 5.2 Material for the foaming layer .4 6 General requirements 4 6.1 General description of the wrapped electrofoaming joints .4 6.2 Appearance .5 6.3 Colour .6 6.4 Electrical properties. .6 7 Geometrical characteristics .6 7.1 General .6 7.2 Dimensions of the wrapped electrofoaming joint .6 7.3 Dimensions of the clamping band .8 8 Mechanical characteristics .8 8.1 Joint material integrity. .8 8.2 Other mechanical characteristics .8 8.2.1 Preparations and pretreatment of test pieces .8 8.2.2 Test conditions and requirements. ..8 9 Performance requirements .9 10 Marking .9 10.1 General .9 10.2 Minimum required marking. .9 Annex A (informative) Wrapped electrofoaming joint joining procedure guide .11 Bibliography ..13 ii vithout license from IHS