Iec 618691 Pdf -

: Sets standards for "normal" and "special" environmental factors, including ambient temperature, altitude, vibration, and pollution levels.

As a general framework, IEC 61869-1 must be read alongside specific product standards (like Part 2 for Current Transformers or Part 3 for Inductive Voltage Transformers). It defines: iec 618691 pdf

: It applies to both analogue and digital secondary signals. : Sets standards for "normal" and "special" environmental