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Full Description

Applies to mineral oils, both uninhibited and inhibited against oxidation, in service, under normal operating conditions, in transformers, switchgear and similar electrical equipment where oil sampling is permissible. This publication is intended to give a common basis on which more complete codes may be prepared when these are necessary. In this guide, the causes of oil deterioration are discussed, and recommendations are made for the various tests. It also gives indications regarding the type of treatment to which the oil should be subsequently subjected, if applicable.
 

Document History

  1. IEC 60422 Ed. 4.0 b:2013


    Mineral insulating oils in electrical equipment - Supervision and maintenance guidance

    • Most Recent
  2. IEC 60422 Ed. 3.0 b:2005


    Mineral insulating oils in electrical equipment - Supervision and maintenance guidance

    • Historical Version
  3. IEC 60422 Ed. 2.0 b:1989

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    Supervision and maintenance guide for mineral insulating oils in electrical equipment

    • Historical Version