{"title":"Touch Current from DC Products; exploring the landscape","authors":"Joseph McGuire, P. E. Perkins","doi":"10.1109/ISPCE51668.2021.9861358","DOIUrl":null,"url":null,"abstract":"An examination of touch voltage and current for DC powered ITE & AV products with consideration to the requirements established in harmonized international standard IEC 62368-1. Measurement of several pieces of DC powered ITE found that at least some DC powered products do not generate monopolar/DC waveforms. Assumptions based on electrical ratings alone or improper measurement of open circuit voltage could lead to misclassification of energy sources under IEC 62368-1. Additionally, misclassifying the nature of the touch current due to these non-monopolar/DC waveforms could result in application of the wrong limits established in IEC 62368-1. Additional clarification in IEC 62368-1 and/or IEC 60990 for DC products has the potential to improve consistency for these measurements.","PeriodicalId":146853,"journal":{"name":"2021 IEEE International Symposium on Product Compliance Engineering (ISPCE)","volume":" 27","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2021-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2021 IEEE International Symposium on Product Compliance Engineering (ISPCE)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ISPCE51668.2021.9861358","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
Abstract
An examination of touch voltage and current for DC powered ITE & AV products with consideration to the requirements established in harmonized international standard IEC 62368-1. Measurement of several pieces of DC powered ITE found that at least some DC powered products do not generate monopolar/DC waveforms. Assumptions based on electrical ratings alone or improper measurement of open circuit voltage could lead to misclassification of energy sources under IEC 62368-1. Additionally, misclassifying the nature of the touch current due to these non-monopolar/DC waveforms could result in application of the wrong limits established in IEC 62368-1. Additional clarification in IEC 62368-1 and/or IEC 60990 for DC products has the potential to improve consistency for these measurements.
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