IEC 63177 Ed. 1.0 b:2024

Current Revision
Test methods for compatibility of construction materials with electrical insulating liquids

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Test methods for compatibility of construction materials with electrical insulating liquids

PUBLISH DATE 2024
PAGES 42

Test methods for compatibility of construction materials with electrical insulating liquids

IEC 63177:2024 specifies the test method for the compatibility of construction materials with electrical insulating liquids for use in electrical equipment, such as liquid-immersed transformers and tap-changers, liquid-impregnated capacitors, and liquid-cooled rotating machines used in electrical vehicles and oil pumps.

This document is applicable to:

  • mineral insulating liquids,
  • natural esters,
  • silicone insulating liquids,
  • synthetic organic esters,
  • modified esters,
  • capacitor fluids based on synthetic aromatic hydrocarbons,
  • and e-transmission fluids used in electrical vehicles and oil pumps.

The compatibility tests are not sufficient for a full qualification of construction materials for a given application without additional tests requested by the appropriate IEC Technical Committee or equipment manufacturers.

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