Madalpingelised elektripaigaldised. Osa 4-42, Kaitseviisid. Kaitse kuumustoime eest = Low-voltage electrical installations. Part 4-42, Protection for safety. Protection against thermal effects (IEC 60364-4-42:2010, modified)2012 https://www.ester.ee/record=b4484094*est

Rahvusvaheline elektrotehnika sõnastik. Osa 482, Primaar- ja sekundaarelemendid ja -patareid [Võrguteavik] = International Electrotechnical Vocabulary.
Part 482: Primary and secondary cells and batteries (IEC 60050-482:2004 +
IEC 60050-482:2004/Amd 1:2016 - IEC 60050-482:2004/Amd 2:2020, identical)2020 https://www.evs.ee/StandardDownload/DownloadPreview?productId=134267&language=43