ISO INTERNATIONAL STANDARD 10656 Secondedition 2016-05-01 Resistance welding equipment Transformers Integrated transformers for welding guns Materiel de soudagepar résistance-Transformateurs Transformateurs incorpores pour pinces a souder Referencenumber IS010656:2016(E) ISO Intemational Organization for Standardization @IS02016 8=ZHEJIANG INST OF STANDARDIZATION C15956617 itted without license from IHS IS0 10656:2016(E) COPYRIGHTPROTECTEDDOCUMENT IS02016,Published inSwitzerland 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. IsOcopyrightoffice Ch.de Blandonnet 8.CP 401 CH-1214 Vernier, Geneva, Switzerland Tel.+41 22 749 01 11 Fax +4122749 0947 [email protected] www.iso.org Licensee-ZHEJIANG INST OF STANDARDIZoISQ0d6-All rights reserved No reproduction or networking permited without license from IHS Notfor Resale, 2016/7/20 08:08:31 IS010656:2016(E) Contents Page Foreword ..iv 1 Scope. ..1 2 Normativereferences 3 Dimensions and characteristics oftransformers 4 Additional equipment ..6 4.1 Grounding provision .6 4.2 Thermal protection. 4.3 Output current sensing coil. .6 5 Marking. .7 5.1 General 1 5.2 Rating plate 7 5.3 Colour ofexteriorfinish 7 6 Designation .7 7 Test conditions 7.1 Typetests. ..8 7.1.1 Mechanical strength 7.1.2 Dynamic behaviour of the output terminals ..8 7.2 Thermal test (type test) .9 Annex A (informative) Secondary current and duty cycle .10 Bibliography 11 Inteatinal oganzation @stS.20.1.6 - All rights reserved iii See=ZHEJIANG INSTOF STANDARDIZATION C15956617 thout license from IHS