UL UL 61730-1 STANDARD FOR SAFETY Photovoltaic (PV) Module Safety Qualification - Part 1: Requirements for Construction ULCOPYRIGHTEDMATERIAL NOTAUTHORIZEDFORFURTHERREPRODUCTIONOR DISTRIBUTIONWITHOUTPERMISSIONFROMUL ULCOPYRIGHTEDMATERIAL NOTAUTHORIZEDFORFURTHERREPRODUCTIONOR DISTRIBUTIONWITHOUTPERMISSIONFROMUL tr1 DECEMBER4,2017-UL61730-1 Construction, UL 61730-1 First Edition, Dated December 4, 2017 Summary of Topics UL 61730-1 is an adoption of IEC 61730-1, Photovoltaic (PV) Module Safety Qualification - Part 1: that the National Difference document incorporates all of the U.S. national differences for UL 61730-1. The requirements are substantially in accordance with Proposal(s) on this subject dated June 9, 2017, September 15, 2017, October 13, 2017, and October 27, 2017. All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted in any form by any means, electronic, mechanical photocopying, recording, or otherwise without prior permission of UL. UL provides this Standard "as is" without warranty of any kind, either expressed or implied, including but not limited to, the implied warranties of merchantability or fitness for any purpose. In no event will UL be liable for any special, incidental, consequential, indirect or similar damages, including loss of profits, lost savings, loss of data, or any other damages arising out of the use of or the inability to use this Standard, even if UL or an authorized UL representative has been advised of the this Standard, regardless of the form of the claim. Users of the electronic versions of UL's Standards for Safety agree to defend, indemnify, and hold UL harmless from and against any loss, expense, liability, damage, claim, or judgment (including reasonable attorney's fees) resulting from any error or deviation introduced while purchaser is storing an electronic Standard on the purchaser's computer system. ULCOPYRIGHTEDMATERIAL NOTAUTHORIZEDFORFURTHERREPRODUCTIONOR DISTRIBUTIONWITHOUTPERMISSIONFROMUL tr2 DECEMBER 4, 2017 - UL 61730-1 No Text on This Page ULCOPYRIGHTEDMATERIAL NOTAUTHORIZEDFORFURTHERREPRODUCTIONOR DISTRIBUTIONWITHOUTPERMISSIONFROMUL ANSI DECEMBER 4, 2017 1 ANSI/UL 61730-1-2017 UL 61730-1 Photovoltaic (PV) Module Safety Qualification - Part 1: Requirements for Construction First Edition December 4, 2017 This ANSi/UL Standard for Safety consists of the First Edition dated December 4, 2017. The most recent designation of ANSI/UL 61730-1 as an American National Standard (ANSl) occurred on December 4, 2017. ANSl approval for a standard does not include the Cover Page, Transmittal Pages, Title Page, or Preface. The National Difference Page and IEC Foreword are also excluded from the ANSl approval of IEC-based standards. Comments or proposals for revisions on any part of the Standard may be submitted to UL at any time. Proposals should be submitted via a Proposal Request in UL's On-Line Collaborative Standards Development System (CSDS) at https://csds.ul.com. UL's Standards for Safety are copyrighted by UL. Neither a printed nor electronic copy of a Standard should be altered in any way. All of UL's Standards and all copyrights, ownerships, and rights regarding those Standards shall remain the sole and exclusive property of UL. COPYRIGHT @ 2017 UNDERWRITERS LABORATORIES INC. ULCOPYRIGHTEDMATERIAL NOTAUTHORIZEDFORFURTHERREPRODUCTIONOR DISTRIBUTIONWITHOUTPERMISSIONFROMUL DECEMBER 4, 2017 2 UL 61730-1 No Text on This Page ULCOPYRIGHTEDMATERIAL NOTAUTHORIZEDFORFURTHERREPRODUCTIONOR DISTRIBUTIONWITHOUTPERMISSIONFROMUL UL 61730-1 DECEMBER 4, 2017 3 CONTENTS PREFACE NATIONAL DIFFERENCES FOREWORD ..8 1 Scope 2 Normative references . : ..10 3 Terms and definitions 3.1 General terms and definitions .13 3.2 Components 3.3 Installation and application . . 3.4 Insulation system .17 3.5 Ratings .19 4 Classification, applications and intended use .21 4.1 General .21 4.2 PV modules of class 0 .21 4.3 PV modules of class Il .22 4.4 PV