Free ASTM Standards Download

AS 61869.1:2021 pdf free download.Instrument transformers Part 1: General requirements (IEC 61869-1:2007 (ED.1.0) MOD). 4.2.5 Other service conditions for outdoor instrument transformers Other considered service conditions are as follows: a) the average value of the ambient air...

AS 61869.9:2021 pdf download.Instrument transformers Part 9: Digital interface for instrument transformers (IEC 61869-9:2016 (ED 1.0) MOD). 5 Ratings 5.6 Rated accuracy class Accuracy classes for electronic LPIT with digital output are defined in the applicable IEC...