International Standards and Conformity Assessment for all electrical, electronic and related technologies



Reference EN 60422:2013
Title Mineral insulating oils in electrical equipment - Supervision and maintenance guidance
Project Number 23116
Abstract/Scope IEC 60422:2013 gives guidance on the supervision and maintenance of the quality of the insulating oil in electrical equipment. This International Standard is applicable to mineral insulating oils, originally supplied conforming to IEC 60296, in transformers, switchgear and other electrical apparatus where oil sampling is reasonably practicable and where the normal operating conditions specified in the equipment specifications apply. This International Standard is also intended to assist the power equipment operator to evaluate the condition of the oil and maintain it in a serviceable condition. It also provides a common basis for the preparation of more specific and complete local codes of practice. The standard includes recommendations on tests and evaluation procedures and outlines methods for reconditioning and reclaiming oil and the decontamination of oil contaminated with PCBs. This fourth edition cancels and replaces the third edition, published in 2005, and constitutes a technical revision. The main changes with respect to the previous edition are as follows: - This new edition represents a major revision of the third edition, in order to bring in line this standard with latest development of oil condition monitoring, containing new limits for oil parameters, suggested corrective actions in the tables and new test methods. - The action limits for all oil tests have been revised and changes made where necessary to enable users to use current methodology and comply with requirements and regulations affecting safety and environmental aspects. - In addition, this standard incorporates changes introduced in associated standards since the third edition was published.


Current Stage code 6060
Current Stage code date 2013-05-03
Current Stage code deadline 2013-11-14
Deadline date for vote  


Order Voucher  


IEC Technical Body IEC/TC 10
Reference Document IEC 60422:2013 (EQV) + corrigendum Dec. 2013 (EQV)
ICS 29.040.10 - Insulating oils
Keywords Insulation; Oil; Mineral; Supervision; Maintenance
Note Supersedes EN 60422:2006 * 10/841/RVC established on 2011-05-06: FDIS decided*2013-01-29 - Publication editing allocated to
Special National Condition(s)  


Categories - Aspects
Product Life Cycle


Deadline Date
6060 2013-05-03 2013-11-14 export to doc file  EN  FR  DE
5099 2013-02-14 2013-03-14  
5060 2012-12-03 2012-12-24 export to doc file  EN
5020 2012-09-28 2012-11-30  
3090 2012-09-25 2012-09-28  
5060 2011-02-21 2011-03-14 export to doc file  EN
5020 2010-09-17 2011-02-18  
1090 2010-09-15 2010-09-17  

Implementation Dates

date of Ratification (DOR) (1) 2013-02-14
date of Availability (DAV) (2) 2013-05-03
date of Announcement (DOA) (3) 2013-05-14
date of Publication (DOP) (4) 2013-11-14
date of Withdrawal (DOW) (5) 2016-02-14


Supersedes EN 60422:2006
Superseded by  
Normative reference (6)
ASTM D971-99a:2004
ASTM D1275
ISO 2049
ISO 2719
ISO 3016
ISO 3104
ISO 3675
ISO 4406:1999
EN 14210
EN 60156
EN 60247
EN 60296:2012
EN 60475
EN 60666:2010
EN 60814
EN 60970
EN 61125:1993
EN 61619
EN 62021-1
EN 62021-2
EN 62535:2009
EN 62697-1:2012

(1) Date of ratification (dor) date when the Technical Board notes the approval of an EN (and HD for CENELEC), from which time the standard may be said to be approved

(2) Date of availability (dav) date when the definitive text in the official language versions of an approved CEN/CENELEC publication is distributed by the Central Secretariat

(3) Date of announcement (doa) latest date by which the existence of an EN (and HD for CENELEC), a TS or a CWA has to be announced at national level

(4) Date of publication (dop) latest date by which an EN has to be implemented at national level by publication of an identical national standard or by endorsement

(5) Date of withdrawal (dow) latest date by which national standards conflicting with an EN (and HD for CENELEC) have to be withdrawn

(6) This list of normative references is purely indicative. The only official list of normative reference is the list of the published standard.