scope:

This standard applies to any component or system intended for or for use in Hydrogen DGA monitoring within liquid-immersed transformers.

This standard contains requirements for DGA monitoring systems in liquid-immersed transformers. The liquid is typically mineral oil, natural ester oil, synthetic ester oil, or silicone oil. Other liquids shall require special investigation.

This standard does not apply to gas detecting equipment monitoring headspace within a sealed liquid-immersed transformer.

Purpose

This standard states testing and certification requirements for Hydrogen Dissolved Gas Analysis (DGA) continuous monitoring systems, for the detection of gas formation in liquid-immersed transformers.

Testing and certification criteria may include, but are not limited to, performance requirements, marking requirements, examination of manufacturing facility(ies), audit of quality assurance procedures, and a surveillance program.