ISO INTERNATIONAL STANDARD 19453-1 Firstedition 2018-03 Road vehicles Environmental conditions and testing for electrical and electronic equipment for drive system of electric propulsion vehicles - Part 1: General Vehicules routiers-Specifications d'environnementet essais de l'équipement électrique et électroniquepourles vehicules a propulsionélectrique- Partie 1:Generalités Referencenumber IS019453-1:2018(E) ISO IS02018 IS019453-1:2018(E) Foreword IsO(theInternationalOrganizationforStandardization)isaworldwidefederationofnationalstandards bodies (IsO member bodies).The work of preparing International Standards is normally carried out through Iso technical committees.Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with Iso, also take part in the work. IsOcollaboratescloselywiththeInternationalElectrotechnical Commission (IEC)onallmatters of electrotechnical standardization. The procedures used to develop this document and those intended for its further maintenance are described in theISo/IEC Directives, Part1. In particular the different approval criteria neededfor the different types of Iso documents should be noted. This document was drafted in accordance with the editorialrulesoftheISo/IECDirectives, Part2 (seewww.iso.org/directives). Attention is drawn tothepossibility that some of the elements of thisdocument maybethe subject of patent rights.IsO shall not be held responsible for identifying any or all such patent rights.Details of any patent rights identified during the developmentof the document willbe in theIntroduction and/or ontheIsolistofpatentdeclarationsreceived (seewww.iso.org/patents). Any trade name used in this document is information given for the convenience of users and does not constitutean endorsement. For an explanation on the voluntary nature of standards,the meaning of Iso specific terms and expressions related to conformity assessment, as well as information about Iso's adherence to the World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT) see the following URL:www.iso.org/iso/foreword.html This documentwasprepared byTechnical CommitteeISo/TC22,Road vehicles,SubcommitteeSC32, Electricalandelectroniccomponentsandgeneralsystemaspects. AlistofallpartsintheISO19453seriescanbefoundontheISOwebsite iv @ IS0 2018-All rights reserved IS019453-1:2018(E) Introduction The purpose of Is0 19453 is to assist its user in systematically defining and/or applying a set of internationally accepted environmental conditions, tests and operating requirements based on the anticipated actual environment which the equipment will be operated in and exposed to during its life cycle. This document has been developed based on fundamental investigations and vehicle measurements on voltage class B components.Therefore, its scope is restricted to such components. However,this documentcan alsobereferredtofortesting components such aselectricmotors,inverters and DC/DC converters used insupplyvoltage classes other than voltage classBif its applicabilityhas beenverified by,for example,vehiclemeasurements.TheIS019453 series isbased on theIS016750 series andfollows the samebasic principles, but is dedicated to voltage class B components. Contrary to the IS0 16750 series, the IS0 19453 series contains no part 2 on electrical testing as those testingconditionsandrequirementsarehandledinIS021498. Thefollowing environmentalfactorshavebeen considered in thedevelopmentofthisdocument Worldgeographyandclimate Electric propulsion vehicles are operated in nearly all land regions of the earth. Significant variations in environmental conditions due to climatic environment, including diurnal and seasonal cycles, can therefore be expected. Consideration has been given to worldwide ranges in temperature, humidity, precipitation andatmospheric conditions inc