ISO INTERNATIONAL 17409 STANDARD Second edition 2020-02 Electrically propelled road vehicles - Conductive power transfer Safety requirements Vehicules routiers a propulsion électrique - Transfert d'energie conductive-Exigences de sécuriteé Reference number IS0 17409:2020(E) TSo @IS02020 IS0 17409:2020(E) COPYRIGHTPROTECTEDDOCUMENT IS0 2020 All rights reserved. Unless otherwise specified, or required in the context of its implementation, 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 theinternet or an intranet, withoutprior writtenpermission.Permission canberequestedfrom eitherIsoat the address beloworIso'smemberbodyinthecountryoftherequester. ISO copyright office CP 401 : Ch. de Blandonnet 8 CH-1214 Vernier, Geneva Phone: +41 22 749 0111 Fax: +41 22 749 09 47 Email: copyright@iso.org Website: www.iso.org PublishedinSwitzerland ii @Is02020-Allrightsreserved IS0 17409:2020(E) Contents Page Foreword .V 1 Scope 1 2 Normative references 1 3 Terms and definitions ..2 4 Environmental and operational conditions. .10 5 Specific requirements for the vehicle inlet, plug, and cable 11 5.1 Requirements for the plug and cable (case A) 11 5.2 Requirements for the vehicle inlet. 11 Requirements for protection of persons against electric shock. .11 6 General 6.1 11 6.2 Basic protection when connected to an external electric circuit 11 6.3 Protective conductor. 12 6.4 Isolation resistance 13 6.4.1 AC connection. 13 6.4.2 DC connection 13 6.5 Requirements for unmated vehicle contacts. 13 6.5.1 General 13 6.5.2 Normal operation. 14 6.5.3 Operation under single fault conditions. 14 6.6 Insulation coordination. 15 6.6.1 AC connection. 15 DC connection 15 6.6.2 6.7 Touch current. 16 6.8 Compatibility with residual current devices (RCD) 16 Protection against thermal incident .16 7 7.1 Requirements for normal operation 16 7.2 Overcurrent protection. 16 7.2.1 16 General. 7.2.2 Overload protection. 17 7.2.3 Short-circuit protection for AC connection 17 7.2.4 Short-circuit protection for DC connection 17 7.3 ArcprotectionforDCconnections. 18 7.4 Residual energy after disconnection. 19 7.5 Transient overvoltage. 19 Additional requirements for AC power transfer 19 8 8.1 Voltage and frequency ranges for normal operation 19 8.2 Current characteristics. 19 8.2.1 Load current 19 8.2.2 Inrush current. 20 8.3 Activefactor. 20 8.4 Interlock function for the vehicle coupler 21 8.5 Phase order in three-phase operation. 21 9 Additional requirements for DC power transfer 21 9.1 21 General 9.2 Disconnection device 21 9.3 22 Control pilot functions. 9.4 Vehicle isolation resistance monitoring system 22 9.5 22 Lockingofthevehicleconnector 9.6 AC or DC electric power at the same contacts 22 9.7 Contact temperature. 23 .24 9.8 Overvoltage in case of a load dump ii IS02020-Allrightsreserved