IEC 60422:1989

Supervision and maintenance guide for mineral insulating oils in electrical equipment

OVERVIEW

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.

COMMENTS

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PRODUCT DETAILS

Status Withdrawn - 02 Jan 2026
Edition 1989
No. of Pages 71
ICS Classification 29.040.10 Insulating oils
29.130.01 Switchgear and controlgear in general
Committee TC 10
Available for Purchase For sale in Singapore only
Adoption IEC : 0