IEC IEC 63044-3 Edition 1.12021-05 CONSOLIDATEDVERSION NTERNATIONAL STANDARD colour inside Home and building electronic systems (HBEs) and building automation and control systems (BAcS) - Part 3: Electrical safety requirements csV(en) THIS PUBLICATION IS COPYRIGHT PROTECTED Copyright @ 2021 IEC, Geneva, Switzerland or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from either IEC or IEC's member National Committee in the country of the requester. If you have any questions about IEC copyright or have an enquiry about obtaining additional rights to this publication, piease contact the address below or your local IEC member National Commitee for further information. IEC Central Office Tel.: +41 22 919 02 11 3, rue de Varembé [email protected] CH-1211 Geneva 20 www.iec.ch Switzerland About the IEC The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes International Standardsfor all electrical, electronic and relatedtechnologies. About IEC publications The technical content of IEC publications is kept under constant review by the IEC. Please make sure that you have the latestedition,acorrigendumoranamendmentmighthavebeenpublished. IECpublicationssearch-webstore.iec.ch/advsearchform IEC online collection-oc.iec.ch The advanced search enables to find IEC publications by a Discover our powerful search engine and read freely all the varietyofcriteria(reference number,text,technical publications previews. With a subscription you will always have committee, ...). It also gives information on projects, replaced access to up to date content tailored to your needs. and withdrawn publications. Electropedia-www.electropedia.org IECJustPublished-webstore.iec.ch/justpublished The world's leading online dictionary on electrotechnology, Stay up to date on all new IEC publications. Just Published containing more than 22 000 terminological entries in English details all new publications released.Available online and once and French, with equivalent terms in 18 additional languages. a month by email. Also known as the International Electrotechnical Vocabulary (IEV) online. IECCustomerServiceCentre-webstore.iec.ch/csc If you wish to give us your feedback on this publication or need further assistance, please contact the Customer Service Centre:[email protected] IEC IEC 63044-3 Edition 1.12021-05 CONSOLIDATEDVERSION NTERNATIONAL STANDARD colour inside Home and building electronic systems (HBEs) and building automation and control systems (BAcs) - Part 3:Electrical safety requirements INTERNATIONAL ELECTROTECHNICAL COMMISSION ICS 29.120.01; 29.120.99 ISBN 978-2-8322-9781-0 Warning! Make sure that you obtained this publication from an authorized distributor. ? Registered trademark of the International Electrotechnical Commission