IEC/TR 621 30, which is a technical report, provides traceable recommendations from validated field data for updating IEC 60721 -2-1 .
![IEC/TR 62130:2012](https://www.365standards.com/wp-content/uploads/2023/02/IEC-TR-62130-2012.png)
Online Standards download
IEC/TR 621 30, which is a technical report, provides traceable recommendations from validated field data for updating IEC 60721 -2-1 .