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IEC 60422:2013

Superseded

Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

View Superseded by

Mineral insulating oils in electrical equipment - Supervision and maintenance guidance

Available format(s)

Hardcopy , PDF , PDF 3 Users , PDF 5 Users , PDF 9 Users

Superseded date

07-18-2024

Superseded by

IEC 60422:2024

Published date

01-10-2013

US$313.00
Excluding Tax where applicable

FOREWORD
INTRODUCTION
1 Scope
2 Normative references
3 Terms and definitions
4 Properties and deterioration/degradation of oil
5 Oil tests and their significance
6 Sampling of oil from equipment
7 Categories of equipment
8 Evaluation of mineral insulating oil in new equipment
9 Evaluation of oil in service
10 Handling and storage
11 Treatment
12 Replacement of oil in electrical equipment
13 Passivation
Annex A (informative) - Evaluating water in oil and
        insulation
Annex B (informative) - Particles
Annex C (informative) - Test method for determination of
        sediment and sludge
Bibliography

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.The contents of the corrigendum of December 2013 have been included in this copy.

Committee
TC 10
DevelopmentNote
Stability Date: 2019. (01/2013)
DocumentType
Standard
Pages
93
PublisherName
International Electrotechnical Committee
Status
Superseded
SupersededBy
Supersedes

Standards Relationship
UNE-EN 60422:2013 Identical
NF EN 60422 : 2013 Identical
NEN EN IEC 60422 : 2013 C1 2013 Identical
SAC GB/T 14542 : 2005 Identical
DIN EN 60422 : 2013 Identical
VDE 0370-2 : 2013 Identical
BS EN 60422:2013 Identical
CEI EN 60422 : 2014 Identical
EN 60422:2013 Identical
NFC 27 222 : 1990 Identical
CEI 10 : 1ED 1997 Identical
NEN 10422 : 1990 Identical
SN EN 60422 : 2006 Identical
BIS IS 1866 : 2017 Identical
BS 5730:1979 Similar to

02/209876 DC : DRAFT NOV 2002 IEC 62332 TS ED.1 - ELECTRICAL INSULATION SYSTEMS (EIS) - THERMAL EVALUATION OF COMBINED LIQUID AND SOLID COMPONENTS
14/30300746 DC : 0 BS EN 60358-4 ED 1.0 - COUPLING CAPACITORS AND CAPACITOR DIVIDERS - PART 4: AC AND DC SINGLE-PHASE CAPACITOR-DIVIDER AND RC-DIVIDER
09/30213528 DC : 0 BS EN 60296 - FLUIDS FOR ELECTROTECHNICAL APPLICATIONS - UNUSED MINERAL INSULATING OIL FOR TRANSFORMERS AND SWITCHGEAR
CEI EN 60076-14 : 2014 POWER TRANSFORMERS - PART 14: LIQUID-IMMERSED POWER TRANSFORMERS USING HIGH-TEMPERATURE INSULATION MATERIALS
12/30257150 DC : 0 BS EN 62770 - FLUIDS FOR ELECTROTECHNICAL APPLICATIONS - UNUSED NATURAL ESTERS LIQUIDS FOR TRANSFORMERS AND SIMILAR ELECTRICAL EQUIPMENT
BS EN 60970:2007 Insulating liquids. Methods for counting and sizing particles
S.R. CLC/TR 50503:2010 GUIDELINES FOR THE INVENTORY CONTROL, MANAGEMENT, DECONTAMINATION AND/OR DISPOSAL OF ELECTRICAL EQUIPMENT AND INSULATING LIQUIDS CONTAINING PCBS
PD IEC/TR 62697-3:2018 Test methods for quantitative determination of corrosive sulfur compounds in unused and used insulating liquids Test method for quantitative determination of elemental sulfur
12/30263868 DC : 0 BS EN 60076-14 - POWER TRANSFORMERS - PART 14: LIQUID-IMMERSED POWER TRANSFORMERS USING HIGH-TEMPERATURE INSULATION MATERIALS
BS 5730:1979 Code of practice for maintenance of insulating oil
DD IEC/TS 62332-1:2011 Electrical insulation systems (EIS). Thermal evaluation of combined liquid and solid components General requirements
CSA C60044-5:2007 INSTRUMENT TRANSFORMERS - PART 5: CAPACITOR VOLTAGE TRANSFORMERS
CSA C60044-5 : 2007 : R2011 INSTRUMENT TRANSFORMERS - PART 5: CAPACITOR VOLTAGE TRANSFORMERS
I.S. EN 62701:2014 FLUIDS FOR ELECTROTECHNICAL APPLICATIONS - RECYCLED MINERAL INSULATING OILS FOR TRANSFORMERS AND SWITCHGEARS
DD IEC PAS 60044-5 : DRAFT SEP 2002 INSTRUMENT TRANSFORMERS - PART 5: CAPACITOR VOLTAGE TRANSFORMERS
I.S. EN 60296:2012 FLUIDS FOR ELECTROTECHNICAL APPLICATIONS - UNUSED MINERAL INSULATING OILS FOR TRANSFORMERS AND SWITCHGEAR (IEC 60296:2012 (EQV))
I.S. EN 60076-14:2013 POWER TRANSFORMERS - PART 14: LIQUIDIMMERSED POWER TRANSFORMERS USING HIGH-TEMPERATURE INSULATION MATERIALS (IEC 60076-14:2013 (EQV))
IEC TR 62697-2:2018 Test methods for quantitative determination of corrosive sulfur compounds in unused and used insulating liquids - Part 2: Test method for quantitative determination of total corrosive sulfur (TCS)
I.S. EN 62697-1:2012 TEST METHODS FOR QUANTITATIVE DETERMINATION OF CORROSIVE SULFUR COMPOUNDS IN UNUSED AND USED INSULATING LIQUIDS - PART 1: TEST METHOD FOR QUANTITATIVE DETERMINATION OF DIBENZYLDISULFIDE (DBDS) (IEC 62697-1:2012 (EQV))
EN 60137:2017 Insulated bushings for alternating voltages above 1 000 V
IEC TS 60076-14:2009 Power transformers - Part 14: Design and application of liquid-immersed power transformers using high-temperature insulation materials
EN 62697-1:2012 Test methods for quantitative determination of corrosive sulfur compounds in unused and used insulating liquids - Part 1: Test method for quantitative determination of dibenzyldisulfide (DBDS)
EN 62701:2014 Fluids for electrotechnical applications - Recycled mineral insulating oils for transformers and switchgears
EN 60044-5:2004 Instrument transformers - Part 5: Capacitor voltage transformers
OVE EN IEC 60296:2023 01 01 Fluids for electrotechnical applications - Mineral insulating oils for electrical equipment
BS EN 60044-5:2004 Instrument transformers Capacitor voltage transformers
BS EN 60358-1:2012 Coupling capacitors and capacitor dividers General rules
CSA C61869-5 : 2015 INSTRUMENT TRANSFORMERS - PART 5: ADDITIONAL REQUIREMENTS FOR CAPACITOR VOLTAGE TRANSFORMERS
17/30331680 DC : 0 BS ISO 18095 - CONDITION MONITORING AND DIAGNOSTICS OF POWER TRANSFORMERS
BS EN 60076-14:2013 Power transformers Liquid-immersed power transformers using high-temperature insulation materials
BS EN 62697-1:2012 Test methods for quantitative determination of corrosive sulphur compounds in unused and used insulating liquids Test method for quantitative determination of dibenzyldisulfide (DBDS)
02/211941 DC : 0 IEC 60076-14 ED.1 - GUIDE FOR THE DESIGN AND APPLICATION OF LIQUID-IMMERSED POWER TRANSFORMERS USING HIGH-TEMPERATURE INSULATION MATERIALS
UNE-EN 60076-14:2014 Power transformers - Part 14: Liquid-immersed power transformers using high-temperature insulation materials
04/30112722 DC : DRAFT APR 2004 IEC 60044-5 ED.1 - INSTRUMENT TRANSFORMERS - PART 5: CAPACITOR VOLTAGE TRANSFORMERS
CEI EN 60666 : 2011 DETECTION AND DETERMINATION OF SPECIFIED ADDITIVES IN MINERAL INSULATING OILS
CEI EN 50299-2 : 2016 OIL-IMMERSED CABLE CONNECTION ASSEMBLIES FOR TRANSFORMERS AND REACTORS HAVING HIGHEST VOLTAGE FOR EQUIPMENT UM FROM 72,5 KV TO 550 KV - PART 2: DRY-TYPE CABLE TERMINATIONS
I.S. EN 60044-5:2004 INSTRUMENT TRANSFORMERS - PART 5: CAPACITOR VOLTAGE TRANSFORMERS
IEC 60137:2017 Insulated bushings for alternating voltages above 1000 V
BS EN 60137:2017 Insulated bushings for alternating voltages above 1000 V
I.S. EN 60137:2017 INSULATED BUSHINGS FOR ALTERNATING VOLTAGES ABOVE 1000 V
I.S. EN 60358-1:2012 COUPLING CAPACITORS AND CAPACITOR DIVIDERS - PART 1: GENERAL RULES (IEC 60358-1:2012 (EQV))
I.S. EN IEC 61125:2018 INSULATING LIQUIDS - TEST METHODS FOR OXIDATION STABILITY - TEST METHOD FOR EVALUATING THE OXIDATION STABILITY OF INSULATING LIQUIDS IN THE DELIVERED STATE
CEI 14-42 : 2011 CONVERTER TRANSFORMERS - PART 3: APPLICATION GUIDE
UNE-EN 50299-2:2015 Oil-immersed cable connection assemblies for transformers and reactors having highest voltage for equipment Um from 72,5 kV to 550 kV - Part 2: Dry-type cable terminations
IEC TS 62332-1:2011 Electrical insulation systems (EIS) - Thermal evaluation of combined liquid and solid components - Part 1: General requirements
IEC 60137:2017 RLV Insulated bushings for alternating voltages above 1000 V
05/30133366 DC : DRAFT MAY 2005 EN 5XXXX BTTF 116-1 - STANDARD FOR THE INVENTORY, CONTROL, MANAGEMENT, DECONTAMINATION AND/OR DISPOSAL OF ELECTRICAL EQUIPMENT AND INSULATING LIQUIDS CONTAINING PCBS
10/30233636 DC : 0 IEC 62697-1 ED.1 - INSULATING LIQUIDS - QUANTITATIVE DETERMINATION OF CORROSIVE SULFUR COMPOUNDS IN USED AND UNUSED INSULATING LIQUIDS - PART 1: TEST METHOD FOR QUANTITATIVE DETERMINATION OF DIBENZYL DISULFIDE (DBDS)
BS EN IEC 61125:2018 Insulating liquids. Test methods for oxidation stability. Test method for evaluating the oxidation stability of insulating liquids in the delivered state
06/30159746 DC : 0 BS EN 50503 - FLUIDS FOR ELECTROTECHNICAL APPLICATIONS - STANDARD FOR THE INVENTORY CONTROL, MANAGEMENT, DECONTAMINATION AND/OR DISPOSAL OF ELECTRICAL EQUIPMENT AND INSULATING LIQUIDS CONTAINING PCBS
BS EN 50299-2:2014 Oil-immersed cable connection assemblies for transformers and reactors having highest voltage for equipment Um from 72,5 kV to 550 kV Dry-type cable terminations
BS EN 60296:2012 Fluids for electrotechnical applications. Unused mineral insulating oils for transformers and switchgear
05/30138884 DC : DRAFT SEP 2005
BS EN 60666:2010 Detection and determination of specified additives in mineral insulating oils
BS IEC 61378-3:2015 Converter transformers Application guide
IEC 61378-3:2015 Converter transformers - Part 3: Application guide
I.S. EN 60970:2007/AC:2008 INSULATING LIQUIDS - METHODS FOR COUNTING AND SIZING PARTICLES
IEC 61125:2018 Insulating liquids - Test methods for oxidation stability - Test method for evaluating the oxidation stability of insulating liquids in the delivered state
CEI EN 60296 : 2013 FLUIDS FOR ELECTROTECHNICAL APPLICATIONS - UNUSED MINERAL INSULATING OILS FOR TRANSFORMERS AND SWITCHGEAR
IEC 62770:2013 Fluids for electrotechnical applications - Unused natural esters for transformers and similar electrical equipment
UNE-EN 62697-1:2013 Test methods for quantitative determination of corrosive sulfur compounds in unused and used insulating liquids - Part 1: Test method for quantitative determination of dibenzyldisulfide (DBDS)
IEC 60044-5:2004 Instrument transformers - Part 5: Capacitor voltage transformers
EN 60296:2012 Fluids for electrotechnical applications - Unused mineral insulating oils for transformers and switchgear
UNE-EN 61869-5:2012 Instrument transformers - Part 5: Additional requirements for capacitor voltage transformers
CEI EN 62770 : 2014 FLUIDS FOR ELECTROTECHNICAL APPLICATIONS - UNUSED NATURAL ESTERS FOR TRANSFORMERS AND SIMILAR ELECTRICAL EQUIPMENT
DD IEC TS 60076-14 : DRAFT 2009 POWER TRANSFORMERS - PART 14: DESIGN AND APPLICATION OF LIQUID-IMMERSED POWER TRANSFORMERS USING HIGH-TEMPERATURE INSULATION MATERIALS
EN IEC 61125:2018 Insulating liquids - Test methods for oxidation stability - Test method for evaluating the oxidation stability of insulating liquids in the delivered state
11/30235371 DC : 0 BS EN 62701 - FLUIDS FOR ELECTRO TECHNICAL APPLICATIONS - RECYCLED MINERAL INSULATING OILS FOR TRANSFORMERS AND SWITCHGEARS
BS EN 61869-5:2011 Instrument transformers Additional requirements for capacitor voltage transformers
BS EN 62770:2014 Fluids for electrotechnical applications. Unused natural esters for transformers and similar electrical equipment
08/30183914 DC : DRAFT JUNE 2008 BS EN 60358-1 - COUPLING CAPACITORS AND CAPACITOR DIVIDERS - PART 1: COMMON CLAUSES
16/30318517 DC : 0 BS EN 60137 ED. 7.0 - INSULATED BUSHINGS FOR ALTERNATING VOLTAGES ABOVE 1000 V
IEEE C57.140-2006 IEEE Guide for Evaluation and reconditioning of Liquid Immersed Power Transformers
IEEE C37.10-2011 REDLINE IEEE Guide for Investigation, Analysis, and Reporting of Power Circuit Breaker Failures
I.S. EN 50299-2:2014 OIL-IMMERSED CABLE CONNECTION ASSEMBLIES FOR TRANSFORMERS AND REACTORS HAVING HIGHEST VOLTAGE FOR EQUIPMENT UM FROM 72,5 KV TO 550 KV - PART 2: DRY-TYPE CABLE TERMINATIONS
I.S. EN 62770:2014 FLUIDS FOR ELECTROTECHNICAL APPLICATIONS - UNUSED NATURAL ESTERS FOR TRANSFORMERS AND SIMILAR ELECTRICAL EQUIPMENT
ISO 18095:2018 Condition monitoring and diagnostics of power transformers
EN 60358-1:2012 COUPLING CAPACITORS AND CAPACITOR DIVIDERS - PART 1: GENERAL RULES (IEC 60358-1:2012)
IEC 60970:2007 Insulating liquids - Methods for counting and sizing particles
IEC 60666:2010 Detection and determination of specified additives in mineral insulating oils
IEC 61869-5:2011 Instrument transformers - Part 5: Additional requirements for capacitor voltage transformers
IEC 60358-1:2012 Coupling capacitors and capacitor dividers - Part 1: General rules
IEC 62697-1:2012 Test methods for quantitative determination of corrosive sulfur compounds in unused and used insulating liquids - Part 1: Test method for quantitative determination of dibenzyldisulfide (DBDS)
UNE-EN 60296:2012 Fluids for electrotechnical applications - Unused mineral insulating oils for transformers and switchgear
IEC 60076-14:2013 Power transformers - Part 14: Liquid-immersed power transformers using high-temperature insulation materials
EN 60970:2007/corrigendum:2008 INSULATING LIQUIDS - METHODS FOR COUNTING AND SIZING PARTICLES
07/30161454 DC : 0 BS EN 60666 - DETECTION AND DETERMINATION OF SPECIFIED ADDITIVES IN MINERAL INSULATING OILS
UNE-EN 62770:2014 Fluids for electrotechnical applications - Unused natural esters for transformers and similar electrical equipment
13/30281716 DC : 0 BS EN 50299-2 - OIL-IMMERSED CABLE CONNECTION ASSEMBLIES FOR TRANSFORMERS AND REACTORS HAVING HIGHEST VOLTAGE FOR EQUIPMENT U[M] FROM 72,5 KV TO 550 KV - PART 2: DRY-TYPE CABLE TERMINATIONS
00/244591 DC : DRAFT OCT 2000 SPECIFICATION FOR UNUSED MINERAL INSULATING OILS FOR TRANSFORMERS AND SWITCHGEAR
CEI EN 61869-5 : 2012 INSTRUMENT TRANSFORMERS - PART 5: ADDITIONAL REQUIREMENTS FOR CAPACITOR VOLTAGE TRANSFORMERS
CEI EN 60970 : 2007 INSULATING LIQUIDS - METHODS FOR COUNTING AND SIZING PARTICLES
UNE-EN 60666:2011 Detection and determination of specified additives in mineral insulating oils
CLC/TR 50503:2010 Guidelines for the inventory control, management, decontamination and/or disposal of electrical equipment and insulating liquids containing PCBs
IEC TR 62697-3:2018 Test methods for quantitative determination of corrosive sulfur compounds in unused and used insulating liquids - Part 3: Test method for quantitative determination of elemental sulfur
I.S. EN 61869-5:2011 INSTRUMENT TRANSFORMERS - PART 5: ADDITIONAL REQUIREMENTS FOR CAPACITOR VOLTAGE TRANSFORMERS (IEC 61869-5:2011)
I.S. EN 60666:2010 DETECTION AND DETERMINATION OF SPECIFIED ADDITIVES IN MINERAL INSULATING OILS
IEC PAS 60044-5:2002 Instrument transformers - Part 5: Capacitor voltage transformers
IEC 60296:2012 RLV Fluids for electrotechnical applications - Unused mineral insulating oils for transformers and switchgear
EN 62770:2014 Fluids for electrotechnical applications - Unused natural esters for transformers and similar electrical equipment
EN 50299-2:2014 Oil-immersed cable connection assemblies for transformers and reactors having highest voltage for equipment Um from 72,5 kV to 550 kV - Part 2: Dry-type cable terminations
EN 61869-5:2011 Instrument transformers - Part 5: Additional requirements for capacitor voltage transformers
EN 60666 : 2010 DETECTION AND DETERMINATION OF SPECIFIED ADDITIVES IN MINERAL INSULATING OILS
EN 60076-14:2013 Power transformers - Part 14: Liquid-immersed power transformers using high-temperature insulation materials

ISO 4793:1980 Laboratory sintered (fritted) filters — Porosity grading, classification and designation
ISO 3016:1994 Petroleum products Determination of pour point
ISO 2719:2016 Determination of flash point — Pensky-Martens closed cup method
IEC 62021-1:2003 Insulating liquids - Determination of acidity - Part 1: Automatic potentiometric titration
IEC 62021-2:2007 Insulating liquids - Determination of acidity - Part 2: Colourimetric titration
IEC 61125:1992 Unused hydrocarbon based insulating liquids - Test methods for evaluating the oxidation stability
ISO 3675:1998 Crude petroleum and liquid petroleum products Laboratory determination of density Hydrometer method
IEC 60156:1995 Insulating liquids - Determination of the breakdown voltage at power frequency - Test method
BS 6522:1984 Methods for determination of percentage water saturation of insulating oil
IEC 60599:2015 Mineral oil-filled electrical equipment in service - Guidance on the interpretation of dissolved and free gases analysis
EN 14210:2003 Surface active agents - Determination of interfacial tension of solutions of surface active agents by the stirrup or ring method
ISO 6247:1998 Petroleum products — Determination of foaming characteristics of lubricating oils
IEC 62535:2008 Insulating liquids - Test method for detection of potentially corrosive sulphur in used and unused insulating oil
IEC 60475:2011 Method of sampling insulating liquids
IEC 60567:2011 Oil-filled electrical equipment - Sampling of gases and analysis of free and dissolved gases - Guidance
ASTM D 1275 : 2015 Standard Test Method for Corrosive Sulfur in Electrical Insulating Liquids
IEC 60296:2012 RLV Fluids for electrotechnical applications - Unused mineral insulating oils for transformers and switchgear
ISO 12185:1996 Crude petroleum and petroleum products — Determination of density — Oscillating U-tube method
AS 61869.5:2021 Instrument transformers Additional requirements for capacitor voltage transformers (IEC 61869-5:2011 (ED 1.0) MOD)
IEC 60970:2007 Insulating liquids - Methods for counting and sizing particles
IEC 62697-1:2012 Test methods for quantitative determination of corrosive sulfur compounds in unused and used insulating liquids - Part 1: Test method for quantitative determination of dibenzyldisulfide (DBDS)
IEC 60666:2010 Detection and determination of specified additives in mineral insulating oils
IEC 60814:1997 Insulating liquids - Oil-impregnated paper and pressboard - Determination of water by automatic coulometric Karl Fischer titration
IEC 60247:2004 Insulating liquids - Measurement of relative permittivity, dielectric dissipation factor (tan d) and d.c. resistivity
ISO 2049:1996 Petroleum products Determination of colour (ASTM scale)
IEC 61619:1997 Insulating liquids - Contamination by polychlorinated biphenyls (PCBs) - Method of determination by capillary column gas chromatography
IEC 61198:1993 Mineral insulating oils - Methods for the determination of 2-furfural and related compounds
IEEE C57.106-2006 IEEE Guide for Acceptance and Maintenance of Insulating Oil in Equipment
ISO 4407:2002 Hydraulic fluid power — Fluid contamination — Determination of particulate contamination by the counting method using an optical microscope
ISO Guide 73:2009 Risk management — Vocabulary

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