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IEC 60247:2004

Current
Current

The latest, up-to-date edition.

Insulating liquids - Measurement of relative permittivity, dielectric dissipation factor (tan d) and d.c. resistivity
Available format(s)

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

Language(s)

English - French, Spanish, Castilian

Published date

02-06-2004

FOREWORD
INTRODUCTION
1 Scope
2 Normative references
3 Terms and definitions
4 General
   4.1 Permittivity and dielectric dissipation factor (tan
        delta)
   4.2 Resistivity
   4.3 Sequence of determinations
   4.4 Factors leading to erroneous results
5 Apparatus
   5.1 Test cell
   5.2 Test equipment
   5.3 Glassware
   5.4 Measuring instrument for permittivity and tan delta
   5.5 Measuring instrument for d.c. resistivity
   5.6 Time-measuring device
   5.7 Safety
6 Cleaning solvent
7 Cleaning the test cell
   7.1 Trisodium phosphate cleaning procedure
   7.2 Storage of cell
8 Sampling
9 Preparation of samples
10 Conditioning and filling the test cell
   10.1 Cell conditioning
   10.2 Filling the cell
11 Test temperature
12 Measurement of dissipation factor (tan delta)
   12.1 Test voltage
   12.2 Measurement
   12.3 Report
13 Measurement of relative permittivity
   13.1 Measurement
   13.2 Report
14 Measurement of d.c. resistivity
   14.1 Test voltage
   14.2 Time of electrification
   14.3 Measurement
   14.4 Report
Annex A (informative) Example of an alternative procedure for
                      cleaning the test cell - Ultrasonic
                      procedure
Annex B (informative) Example of a simplified cleaning
                      procedure for a test cell
Annex C (informative) Alternative procedures for routine testing
                      of dielectric dissipation factor and
                      resistivity of insulating liquids
Figure 1 - Example of a three-terminal cell for measurements on
           liquids
Figure 2 - Example of screening for the cell of Figure 1
Figure 3 - Example of assembling drawing of cell
Figure 4 - Example of a two-terminal cell for measurements in
           liquids
Figure 5 - Example of a test cell designed for low-loss
           dielectric liquids

Describes methods for the determination of the dielectric dissipation factor, relative permittivity and d.c. resistivity of any insulating liquid material at the test temperature. The methods are primarily intended for making reference tests on unused liquids. They can also be applied to liquids in service in transformers, cables and other electrical apparatus. However the method is applicable to a single phase liquid only. When it is desired to make routine determinations, simplified procedures, as described in Annex C, may be adopted. With insulating liquids other than hydrocarbons, alternative cleaning procedures may be required. The main changes from the previous edition deal with the preferred measurement method.

Committee
TC 10
DevelopmentNote
Stability Date: 2019. (09/2017)
DocumentType
Standard
Pages
53
PublisherName
International Electrotechnical Committee
Status
Current
Supersedes

Standards Relationship
UNE-EN 60247:2004 Identical
NF EN 60247 : 2004 Identical
GOST R IEC 60247 : 2013 Identical
NEN EN IEC 60247 : 2005 Identical
I.S. EN 60247:2004 Identical
PN EN 60247 : 2008 Identical
DIN EN 60247 : 2005 Identical
VDE 0380-2 : 2005 Identical
IS 16840 : 2018 Identical
BS EN 60247:2004 Identical
EN 60247:2004 Identical
AS 1767.2.2-2008 Identical

BS EN 60641-2:2004 Pressboard and presspaper for electrical purposes Methods of tests
09/30213528 DC : 0 BS EN 60296 - FLUIDS FOR ELECTROTECHNICAL APPLICATIONS - UNUSED MINERAL INSULATING OIL FOR TRANSFORMERS AND SWITCHGEAR
CEI EN 60672-2 : 2000 CERAMIC AND GLASS INSULATING MATERIALS - PART 2: METHODS OF TEST
12/30257150 DC : 0 BS EN 62770 - FLUIDS FOR ELECTROTECHNICAL APPLICATIONS - UNUSED NATURAL ESTERS LIQUIDS FOR TRANSFORMERS AND SIMILAR ELECTRICAL EQUIPMENT
09/30192958 DC : DRAFT JAN 2009 BS EN 60811-301 - ELECTRIC AND OPTICAL FIBRE CABLES - TEST METHODS FOR NON-METALLIC MATERIALS - PART 301: ELECTRICAL TESTS - MEASUREMENT OF THE PERMITTIVITY AT 23 DEGREE C OF FILLING COMPOUNDS
BS EN 61125:1993 Unused hydrocarbon-based insulating liquids. Test methods for evaluating the oxidation stability
BS 5937-2:1980 Pressboard and presspaper for electrical purposes Methods of test
BS EN 60836:2015 Specifications for unused silicone insulating liquids for electrotechnical purposes
CEI EN 60811-302 : 2014 ELECTRIC AND OPTICAL FIBRE CABLES - TEST METHODS FOR NON-METALLIC MATERIALS - PART 302: ELECTRICAL TESTS - MEASUREMENT OF THE D.C. RESISTIVITY AT 23 DEGREES C AND 100 DEGREES C OF FILLING COMPOUNDS
05/30128501 DC : DRAFT JAN 2005 IEC 60079-6 - ELECTRICAL APPARATUS FOR EXPLOSIVE GAS ATMOSPHERES - PART 6: OIL-IMMERSION 'O'
12/30268820 DC : 0 BS EN 60836 - SPECIFICATIONS FOR UNUSED SILICONE INSULATING LIQUIDS FOR ELECTROTECHNICAL PURPOSES
CEI EN 61099 : 2011 INSULATING LIQUIDS - SPECIFICATIONS FOR UNUSED SYNTHETIC ORGANIC ESTERS FOR ELECTRICAL PURPOSES
DD IEC/TS 62332-1:2011 Electrical insulation systems (EIS). Thermal evaluation of combined liquid and solid components General requirements
03/100561 DC : DRAFT JULY 2003 IEC 60422 ED.3 - SUPERVISION AND MAINTENANCE GUIDE FOR MINERAL INSULATING OILS IN ELECTRICAL EQUIPMENT
NF EN 60554-2 : 2003 CELLULOSIC PAPERS FOR ELECTRICAL PURPOSES - PART 2: METHODS OF TEST
I.S. EN 60554-2:2002 CELLULOSIC PAPERS FOR ELECTRICAL PURPOSES - PART 2: METHODS OF TEST
I.S. EN 60811-302:2012 ELECTRIC AND OPTICAL FIBRE CABLES - TEST METHODS FOR NON-METALLIC MATERIALS - PART 302: ELECTRICAL TESTS - MEASUREMENT OF THE D.C. RESISTIVITY AT 23 DEGREES C AND 100 DEGREES C OF FILLING COMPOUNDS (IEC 60811-302:2012 (EQV))
I.S. EN 61221:2004 PETROLEUM PRODUCTS AND LUBRICANTS - TRIARYL PHOSPHATE ESTER TURBINE CONTROL FLUIDS (CATEGORY ISO-L-TCD) - SPECIFICATIONS
CEI EN 60079-32-2 : 2016 EXPLOSIVE ATMOSPHERES - PART 32-2: ELECTROSTATICS HAZARDS - TESTS
PD CLC/TR 60079-32-1:2015 Explosive atmospheres Electrostatic hazards, guidance
IEC 61061-2:1992+AMD1:2001 CSV Specification for non-impregnated, densified laminated wood for electrical purposes - Part 2: Methods of test
EN 60867:1994 Insulating liquids - Specifications for unused liquids based on synthetic aromatic hydrocarbons
EN 60811-5-1:1999/A1:2004 INSULATING AND SHEATHING MATERIALS OF ELECTRIC AND OPTICAL CABLES - COMMON TEST METHODS - PART 5-1: METHODS SPECIFIC TO FILLING COMPOUNDS - DROP POINT - SEPARATION OF OIL - LOWER TEMPERATURE BRITTLENESS - TOTAL ACID NUMBER - ABSENCE OF CORROSIVE COMPONENTS - PERMITTIVITY AT 23 DEGREE C - D.C. RESISTIVITY AT 23 DEGREE C AND 100 DEGREE C
EN 62701:2014 Fluids for electrotechnical applications - Recycled mineral insulating oils for transformers and switchgears
EN 61125:1993/A1:2004 UNUSED HYDROCARBON-BASED INSULATING LIQUIDS - TEST METHODS FOR EVALUATING THE OXIDATION STABILITY
EN 60079-32-2:2015 Explosive atmospheres - Part 32-2: Electrostatics hazards - Tests
EN 61099:2010 Insulating liquids - Specifications for unused synthetic organic esters for electrical purposes
OVE EN IEC 60296:2023 01 01 Fluids for electrotechnical applications - Mineral insulating oils for electrical equipment
09/30192962 DC : DRAFT JAN 2009 BS EN 60811-302 - ELECTRIC AND OPTICAL FIBRE CABLES - TEST METHODS FOR NON-METALLIC MATERIALS - PART 302: ELECTRICAL TESTS - MEASUREMENT OF THE D.C. RESISTIVITY AT 23 DEGREE C AND 100 DEGREE C OF FILLING COMPOUNDS
PD IEC/TS 62332-3:2016 Electrical insulation systems (EIS). Thermal evaluation of combined liquid and solid components Hermetic motor-compressors
BS EN 62631-1:2011 Dielectric and resistive properties of solid insulating materials General
17/30331680 DC : 0 BS ISO 18095 - CONDITION MONITORING AND DIAGNOSTICS OF POWER TRANSFORMERS
CEI EN 62631-1 : 2012 DIELECTRIC AND RESISTIVE PROPERTIES OF SOLID INSULATING MATERIALS - PART 1: GENERAL
BS EN 61221:2004 Petroleum products and lubricants. Triaryl phosphate ester turbine control fluids (category ISO-L-TCD). Specifications
BIS IS 16081 : 2013 INSULATING LIQUIDS - SPECIFICATIONS FOR UNUSED SYNTHETIC ORGANIC ESTERS FOR ELECTRICAL PURPOSES
09/30204161 DC : DRAFT MAY 2009 BS EN 62631-1 - GUIDELINES FOR THE DETERMINATION OF DIELECTRIC AND RESISTIVE PROPERTIES OF SOLID INSULATING MATERIALS - PART 1: GENERAL CONSIDERATIONS
BS 5354-2:1994 Specification for laminated pressboard for electrical purposes Methods of test
BS EN 60811-5-1:2000 Insulating and sheathing materials of electric and optical fibre cables. Common test methods Methods specific to filling compounds. Drop point. Separation of oil. Lower temperature brittleness. Total acid number. Absence of corrosive components. Permittivity at 23°C. D.C. resistivity at 23°C and 100°C
I.S. EN 60422:2013 MINERAL INSULATING OILS IN ELECTRICAL EQUIPMENT - SUPERVISION AND MAINTENANCE GUIDANCE (IEC 60422:2013 (EQV))
EN IEC 62631-2-1:2018 Dielectric and resistive properties of solid insulating materials - Part 2-1: Relative permittivity and dissipation factor - Technical frequencies (0,1 Hz to 10 MHz) - AC Methods
S.R. CLC/TR 60079-32-1:2015 EXPLOSIVE ATMOSPHERES - PART 32-1: ELECTROSTATIC HAZARDS - GUIDANCE
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 EN 60811-301 : 2014 ELECTRIC AND OPTICAL FIBRE CABLES - TEST METHODS FOR NON-METALLIC MATERIALS - PART 301: ELECTRICAL TESTS - MEASUREMENT OF THE PERMITTIVITY AT 23 DEGREES C OF FILLING COMPOUNDS
CEI EN 60763-2 : 2007 SPECIFICATION FOR LAMINATED PRESSBOARD - PART 2: METHODS OF TEST
VDE 0370-12 : 1994 SPECIFICATION FOR UNUSED INSULATING MINERAL OILS FOR CABLES WITH OIL DUCTS
I.S. EN 61099:2010 INSULATING LIQUIDS - SPECIFICATIONS FOR UNUSED SYNTHETIC ORGANIC ESTERS FOR ELECTRICAL PURPOSES
I.S. EN 60763-2:2007 SPECIFICATION FOR LAMINATED PRESSBOARD - PART 2: METHODS OF TEST
IEC TS 62332-3:2016 Electrical insulation systems (EIS) - Thermal evaluation of combined liquid and solid components - Part 3: Hermetic motor-compressors
IEC TS 62332-1:2011 Electrical insulation systems (EIS) - Thermal evaluation of combined liquid and solid components - Part 1: General requirements
IEC 60554-2:2001 Cellulosic papers for electrical purposes - Part 2: Methods of test
VDE 0311-35 : 1988 CELLULOSIC PAPERS FOR ELECTRICAL PURPOSES - SPECIFICATIONS; SPECIAL PAPERS
DIN EN 60867 : 1995 INSULATING LIQUIDS - SPECIFICATIONS FOR UNUSED LIQUIDS BASED ON SYNTHETIC AROMATIC HYDROCARBONS
DIN EN 61620 : 1999 INSULATING LIQUIDS - DETERMINATION OF THE DIELECTRIC DISSIPATION FACTOR BY MEASUREMENT OF THE CONDUCTANCE AND CAPACITANCE - TEST METHOD
VDE 0372-1 : 1995 INSULATING LIQUIDS - SPECIFICATIONS FOR UNUSED LIQUIDS BASED ON SYNTHETIC AROMATIC HYDROCARBONS
DIN VDE 0311-35 : 1988 CELLULOSIC PAPER FOR ELECTRICAL PURPOSES; SPECIFICATIONS; SPECIAL PAPER
DIN EN 60763-2 : 2007 SPECIFICATION FOR LAMINATED PRESSBOARD - PART 2: METHODS OF TEST
VDE 0374-1 : 1995 SPECIFICATIONS FOR SILICONE LIQUIDS FOR ELECTRICAL PURPOSES
VDE 0303-30 : 1993 METHODS OF TEST FOR INSULATING MATERIALS FOR ELECTRICAL PURPOSES; VOLUME RESISTIVITY AND SURFACE RESISTIVITY OF SOLID ELECTRICAL INSULATING MATERIALS
VDE 0370-16 : 1999 INSULATING LIQUIDS - DETERMINATION OF DIELECTRIC DISSIPATION FACTOR BY MEASUREMENT OF THE CONDUCTANCE AND CAPACITANCE - TEST METHOD
BIS IS 16086 : 2013 INSULATING LIQUIDS - DETERMINATION OF THE DIELECTRIC DISSIPATION FACTOR BY MEASUREMENT OF THE CONDUCTANCE AND CAPACITANCE - TEST METHOD
BS ISO 10050:2005 Lubricants, industrial oils and related products (class L). Family T (Turbines). Specifications of triaryl phosphate ester turbine control fluids (category ISO-L-TCD)
BS 6802:1987 Specification for unused insulating liquids based on synthetic aromatic hydrocarbons
DD ISO/TS 11365:2011 Petroleum and related products. Guidance for the maintenance and use of triaryl phosphate ester turbine-control fluids
11/30235371 DC : 0 BS EN 62701 - FLUIDS FOR ELECTRO TECHNICAL APPLICATIONS - RECYCLED MINERAL INSULATING OILS FOR TRANSFORMERS AND SWITCHGEARS
NF EN 61125 : 1993 AMD 1 2004 UNUSED HYDROCARBON-BASED INSULATING LIQUIDS - TEST METHODS FOR EVALUATING THE OXIDATION STABILITY
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
08/30195180 DC : DRAFT DEC 2008 BS EN 61099 - SPECIFICATION FOR UNUSED SYNTHETIC ORGANIC ESTERS FOR ELECTRICAL PURPOSES
09/30193006 DC : 0 BS EN 60811-411 - ELECTRIC AND OPTICAL FIBRE CABLES - TEST METHODS FOR NON-METALLIC MATERIALS - PART 411: ENVIRONMENTAL TESTS - LOW TEMPERATURE BRITTLENESS OF FILLING COMPOUNDS
BS EN 60296:2012 Fluids for electrotechnical applications. Unused mineral insulating oils for transformers and switchgear
IEEE 1861-2014 IEEE Guide for On-Site Acceptance Tests of Electrical Equipment and System Commissioning of 1000 kV AC and Above
BS EN 60811-302:2012 Electric and optical fibre cables. Test methods for non-metallic materials Electrical tests. Measurement of the d.c. resistivity at 23°C and 100°C of filling compounds
10/30215366 DC : 0 BS EN 60422 - MINERAL INSULATING OILS IN ELECTRICAL EQUIPMENT - SUPERVISION AND MAINTENANCE GUIDANCE
BS EN 50015:1998 Electrical apparatus for potentially explosive atmospheres. Oil immersion \'o\'
16/30323482 DC : 0 BS ISO 11365 - PETROLEUM AND RELATED PRODUCTS - MAINTENANCE AND USE GUIDE FOR TRIARYL PHOSPHATE ESTER TURBINE CONTROL FLUIDS
CEI EN 60554-2 : 2002 CELLULOSIC PAPERS FOR ELECTRICAL PURPOSES - PART 2: METHODS OF TEST
CSA E60079.6 : 2002 ELECTRICAL APPARATUS FOR EXPLOSIVE GAS ATMOSPHERES - PART 6: OIL-IMMERSION "O"
I.S. EN IEC 62631-2-1:2018 DIELECTRIC AND RESISTIVE PROPERTIES OF SOLID INSULATING MATERIALS - PART 2-1: RELATIVE PERMITTIVITY AND DISSIPATION FACTOR - TECHNICAL FREQUENCIES (0,1 HZ TO 10 MHZ) - AC METHODS
I.S. EN 60079-32-2:2015 EXPLOSIVE ATMOSPHERES - PART 32-2: ELECTROSTATICS HAZARDS - TESTS
I.S. EN 62701:2014 FLUIDS FOR ELECTROTECHNICAL APPLICATIONS - RECYCLED MINERAL INSULATING OILS FOR TRANSFORMERS AND SWITCHGEARS
DIN EN 60465 : 1994 SPECIFICATION FOR UNUSED INSULATING MINERAL OILS FOR CABLES WITH OIL DUCTS
VDE 0372-2 : 1996 UNUSED MINERAL INSULATING OILS - SPECIFICATION FOR UNUSED POLYBUTENES
NF EN 61099 : 2011 INSULATING LIQUIDS - SPECIFICATION FOR UNUSED SYNTHETIC ORGANIC ESTERS FOR ELECTRICAL PURPOSES
ISO/TS 11365:2011 Petroleum and related products Guidance for the maintenance and use of triaryl phosphate ester turbine-control fluids
IEC 62631-2-1:2018 Dielectric and resistive properties of solid insulating materials - Part 2-1: Relative permittivity and dissipation factor - Technical Frequencies (0,1 Hz - 10 MHz) - AC Methods
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
EN 61061-2:2001/corrigendum:2002 SPECIFICATION FOR NON-IMPREGNATED, DENSIFIED LAMINATED WOOD FOR ELECTRICAL PURPOSES - PART 2: METHODS OF TEST
IEC 62770:2013 Fluids for electrotechnical applications - Unused natural esters for transformers and similar electrical equipment
IEC 60763-2:2007 Specification for laminated pressboard - Part 2: Methods of test
EN 60296:2012 Fluids for electrotechnical applications - Unused mineral insulating oils for transformers and switchgear
UNE-EN 60836:2015 Specifications for unused silicone insulating liquids for electrotechnical purposes
CEI EN 62770 : 2014 FLUIDS FOR ELECTROTECHNICAL APPLICATIONS - UNUSED NATURAL ESTERS FOR TRANSFORMERS AND SIMILAR ELECTRICAL EQUIPMENT
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
BS EN 60079-32-2:2015 Explosive atmospheres Electrostatics hazards. Tests
BS EN 61061-2:2001 Non-impregnated densified laminated wood for electrical purposes Methods of test
DIN VDE 0311-20 : 1988 CELLULOSIC PAPER FOR ELECTRICAL PURPOSES; METHODS OF TEST
BS EN 61099:2010 Insulating liquids. Specifications for unused synthetic organic esters for electrical purposes
IEC 60296 REDLINE : 4.0 FLUIDS FOR ELECTROTECHNICAL APPLICATIONS - UNUSED MINERAL INSULATING OILS FOR TRANSFORMERS AND SWITCHGEAR
01/206865 DC : DRAFT SEP 2001 IEC 61221 ED.2 - PETROLEUM PRODUCTS AND LUBRICANTS - TRIARYL PHOSPHATE ESTER TURBINE CONTROL FLUIDS (CATEGORY ISO-L-TCD) - SPECIFICATIONS
BS EN 62770:2014 Fluids for electrotechnical applications. Unused natural esters for transformers and similar electrical equipment
CEI EN 60641-2 : 2005 PRESSBOARD AND PRESSPAPER FOR ELECTRICAL PURPOSES - PART 2: METHODS OF TEST
02/207269 DC : 0 IEC 60422 ED.3 - SUPERVISION AND MAINTENANCE GUIDE FOR MINERAL INSULATING OILS IN ELECTRICAL EQUIPMENT
01/203394 DC : DRAFT MAY 2001 IEC 60641-2 - PRESSBOARD AND PRESSPAPER FOR ELECTRICAL PURPOSES - PART 2: METHODS OF TEST
BS EN 60867:1994 Insulating liquids. Specifications for unused liquids based on synthetic aromatic hydrocarbons
13/30267448 DC : 0 BS EN 60079-6 ED 4.0 - EXPLOSIVE ATMOSPHERES - PART 6: EQUIPMENT PROTECTION BY LIQUID IMMERSION 'O'
I.S. EN 60811-301:2012 ELECTRIC AND OPTICAL FIBRE CABLES - TEST METHODS FOR NON-METALLIC MATERIALS - PART 301: ELECTRICAL TESTS - MEASUREMENT OF THE PERMITTIVITY AT 23 DEGREES C OF FILLING COMPOUNDS (IEC 60811-301:2012 (EQV))
BS EN 61620:1999 Insulating liquids. Determination of the dielectric dissipation factor by measurement of the conductance and capacitance. Test method
UNE-EN 60811-302:2012 Electric and optical fibre cables - Test methods for non-metallic materials - Part 302: Electrical tests - Measurement of the d.c. resistivity at 23 °C and 100 °C of filling compounds
PD IEC/TS 62332-2:2014 Electrical insulation systems (EIS). Thermal evaluation of combined liquid and solid components Simplified test
NF EN 60763-2 : 2016 SPECIFICATION FOR LAMINATED PRESSBOARD - PART 2: METHODS OF TEST
NF EN 50015 : 1999 ELECTRICAL APPARATUS FOR POTENTIALLY EXPLOSIVE ATMOSPHERES - OIL IMMERSION 'O'
BS PD IEC TS 60079-32-1 : 2013 EXPLOSIVE ATMOSPHERES - PART 32-1: ELECTROSTATIC HAZARDS, GUIDANCE
I.S. EN 60836:2015 SPECIFICATIONS FOR UNUSED SILICONE INSULATING LIQUIDS FOR ELECTROTECHNICAL PURPOSES
I.S. EN 62770:2014 FLUIDS FOR ELECTROTECHNICAL APPLICATIONS - UNUSED NATURAL ESTERS FOR TRANSFORMERS AND SIMILAR ELECTRICAL EQUIPMENT
I.S. EN 60811-5-1:2000 INSULATING AND SHEATHING MATERIALS OF ELECTRIC AND OPTICAL FIBRE CABLES - COMMON TEST METHODS - PART 5: METHODS SPECIFIC TO FILLING COMPOUNDS - SECTION 1: DROP POINT - SEPARATION OF OIL - LOWER TEMPERATURE BRITTLENESS - TOTAL ACID NUMBER - ABSENCE OF CORROSIVE COMPONENTS - PERMITTIVITY AT 23 DEGREE - D.C. RESISTIVITY AT 23 DEGREE AND 100 DEGREE
ISO 18095:2018 Condition monitoring and diagnostics of power transformers
ISO 11365:2017 Petroleum and related products — Requirements and guidance for the maintenance of triaryl phosphate ester turbine control fluids
BS EN 60422:2013 Mineral insulating oils in electrical equipment. Supervision and maintenance guidance
ISO 10050:2005 Lubricants, industrial oils and related products (class L) — Family T (Turbines) — Specifications of triaryl phosphate ester turbine control fluids (category ISO-L-TCD)
I.S. EN 61125:1993 UNUSED HYDROCARBON-BASED INSULATING LIQUIDS - TEST METHODS FOR EVALUATING THE OXIDATION STABILITY
I.S. EN 60079-6:2015 EXPLOSIVE ATMOSPHERES - PART 6: EQUIPMENT PROTECTION BY LIQUID IMMERSION 'O'
IEC 60079-6:2015 Explosive atmospheres - Part 6: Equipment protection by liquid immersion "o"
IEC 60836:2015 Specifications for unused silicone insulating liquids for electrotechnical purposes
UNE-EN 60079-6:2016 Explosive atmospheres - Part 6: Equipment protection by liquid immersion "o"
IEC 60811-301:2012 Electric and optical fibre cables - Test methods for non-metallic materials - Part 301: Electrical tests - Measurement of the permittivity at 23 °C of filling compounds
IEC 62631-1:2011 Dielectric and resistive properties of solid insulating materials - Part 1: General
IEC 61620:1998 Insulating liquids - Determination of the dielectric dissipation factor by measurement of the conductance and capacitance - Test method
IEC 61221:2004 Petroleum products and lubricants - Triaryl phosphate ester turbine control fluids (category ISO-L-TCD) - Specifications
08/30187368 DC : DRAFT JULY 2008 BS ISO 11365 - PETROLEUM AND RELATED PRODUCTS - MAINTENANCE AND USE GUIDE FOR TRIARYL PHOSPHATE ESTER TURBINE CONTROL FLUIDS
IEC 61099:2010 Insulating liquids - Specifications for unused synthetic organic esters for electrical purposes
UNE-EN 60296:2012 Fluids for electrotechnical applications - Unused mineral insulating oils for transformers and switchgear
IEC 60867:1993 Insulating liquids - Specifications for unused liquids based on synthetic aromatic hydrocarbons
UNE-EN 60422:2013 Mineral insulating oils in electrical equipment - Supervision and maintenance guidance
IEC 60422:2013 Mineral insulating oils in electrical equipment - Supervision and maintenance guidance
IEC 60811-302:2012 Electric and optical fibre cables - Test methods for non-metallic materials - Part 302: Electrical tests - Measurement of the d.c. resistivity at 23 °C and 100 °C of filling compounds
04/30108943 DC : 0
BS ISO 11365:2017 Petroleum and related products. Requirements and guidance for the maintenance of triaryl phosphate ester turbine control fluids
UNE-EN 62770:2014 Fluids for electrotechnical applications - Unused natural esters for transformers and similar electrical equipment
03/100225 DC : DRAFT FEB 2003 IEC 60836 ED.2 - SPECIFICATIONS FOR UNUSED SILICONE INSULATING LIQUIDS FOR ELECTROTECHNICAL PURPOSES
15/30323694 DC : 0 BS EN 62631-2-1 - DIELECTRIC AND RESISTIVE PROPERTIES OF SOLID INSULATING MATERIALS - PART 2-1: RELATIVE PERMITTIVITY AND DISSIPATION FACTOR - TECHNICAL FREQUENCIES (0.1 HZ - 10 MHZ), AC METHODS
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
BS EN 60811-301:2012 Electric and optical fibre cables. Test methods for non-metallic materials Electrical tests. Measurement of the permittivity at 23°C of filling compounds
UNE-EN 60811-301:2012 Electric and optical fibre cables - Test methods for non-metallic materials - Part 301: Electrical tests - Measurement of the permittivity at 23 °C of filling compounds
CSA E60079.6 : 2002 : R2011 ELECTRICAL APPARATUS FOR EXPLOSIVE GAS ATMOSPHERES - PART 6: OIL-IMMERSION "O"
BS EN 60763-2:2007 Specification for laminated pressboard Methods of test
BS EN 60554-2:2002 Cellulosic papers for electrical purposes Methods of test
00/244591 DC : DRAFT OCT 2000 SPECIFICATION FOR UNUSED MINERAL INSULATING OILS FOR TRANSFORMERS AND SWITCHGEAR
CEI EN 60079-6 : 2016 EXPLOSIVE ATMOSPHERES - PART 6: EQUIPMENT PROTECTION BY LIQUID IMMERSION 'O'
CEI EN 61061-2 : 2002 SPECIFICATION FOR NON-IMPREGNATED, DENSIFIED LAMINATED WOOD FOR ELECTRICAL PURPOSES - PART 2: METHODS OF TEST
BS EN 60079-6:2007 Explosive atmospheres Equipment protected by oil immersion \'o\'
CLC/TR 50503 : 2010 Guidelines for the inventory control, management, decontamination and/or disposal of electrical equipment and insulating liquids containing PCBs
CEI EN 61620 : 1999 INSULATING LIQUIDS DETERMINATION OF THE DIELECTRIC DISSIPATION FACTOR BY MEASUREMENT OF THE CONDUCTANCE AND CAPACITANCE - TEST METHOD
NF EN 60811 5-1 : 2000 AMD 1 2004 INSULATING AND SHEATHING MATERIALS OF ELECTRIC AND OPTICAL FIBER CABLES - COMMON TEST METHODS - PART 5: METHODS SPECIFIC TO FILLING COMPOUNDS - SECTION 1: DROP POINT - SEPARATION OF OIL - LOWER TEMPERATURE BRITTLENESS - TOTAL ACID NUMBER - ABSENCE OF CORROSIVE COMPONENTS - PERMITTIVITY AT 23 DEGREE C - D.C. RESISTIVITY AT 23 DEGREE C AND 100 DEGREE C
S.R. CLC/TR 50503:2010 GUIDELINES FOR THE INVENTORY CONTROL, MANAGEMENT, DECONTAMINATION AND/OR DISPOSAL OF ELECTRICAL EQUIPMENT AND INSULATING LIQUIDS CONTAINING PCBS
IEC TS 62332-2:2014 Electrical insulation systems (EIS) - Thermal evaluation of combined liquid and solid components - Part 2: Simplified test
I.S. EN 60867:1996 INSULATING LIQUIDS - SPECIFICATIONS FOR UNUSED LIQUIDS BASED ON SYNTHETIC AROMATIC HYDROCARBONS
IEEE 1277-2010 IEEE Standard General Requirements and Test Code for Dry-Type and Oil-Immersed Smoothing Reactors for DC Power Transmission
UNE-EN 62631-1:2012 Dielectric and resistive properties of solid insulating materials - Part 1: General
UNE-EN 61099:2011 Insulating liquids - Specifications for unused synthetic organic esters for electrical purposes
I.S. EN 60641-2:2004 SPECIFICATION FOR PRESSBOARD AND PRESSPAPER FOR ELECTRICAL PURPOSES - METHODS OF TEST
I.S. EN 60672-2:2000 CERAMIC AND GLASS INSULATING MATERIALS - PART 2: METHODS OF TEST
BS 6469-5.1:1992 Insulating and sheathing materials of electric cables. Methods of test specific to filling compounds Drop-point. Separation of oil. Lower temperature brittleness. Total acid number. Absence of corrosive components. Permittivity at 23°C. D.C. resistivity at 23°C and 100°C
ISA 12.26.01 : 1998 ELECTRICAL APPARATUS FOR USE IN CLASS 1, ZONE 1 HAZARDOUS (CLASSIFIED) LOCATIONS: TYPE OF PROTECTION - OIL IMMERSION "O"
I.S. EN 62631-1:2011 DIELECTRIC AND RESISTIVE PROPERTIES OF SOLID INSULATING MATERIALS - PART 1: GENERAL
DIN IEC 60963 : 1996 SPECIFICATION FOR UNUSED POLYBUTENES
CLC/TR 60079-32-1:2015 Explosive atmospheres - Part 32-1: Electrostatic Hazards - Guidance
I.S. EN 60296:2012 FLUIDS FOR ELECTROTECHNICAL APPLICATIONS - UNUSED MINERAL INSULATING OILS FOR TRANSFORMERS AND SWITCHGEAR (IEC 60296:2012 (EQV))
IEC 60641-2:2004 Pressboard and presspaper for electrical purposes - Part 2: Methods of tests
UNE-EN 60079-32-2:2016 Explosive atmospheres - Part 32-2: Electrostatics hazards - Tests
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 60763-2:2007 Specification for laminated pressboard - Part 2: Methods of test
EN 60811-301:2012 Electric and optical fibre cables - Test methods for non-metallic materials - Part 301: Electrical tests - Measurement of the permittivity at 23 °C of filling compounds
EN 60672-2:2000 Ceramic and glass insulating materials - Part 2: Methods of test
EN 60554-2:2002 Cellulosic papers for electrical purposes - Part 2: Methods of test
EN 50015:1998 Electrical apparatus for potentially explosive atmospheres - Oil immersion "o"
EN 60836:2015 Specifications for unused silicone insulating liquids for electrotechnical purposes
EN 60079-6:2015 Explosive atmospheres - Part 6: Equipment protection by liquid immersion "o"
EN 61620:1999 Insulating liquids - Determination of the dielectric dissipation factor by measurement of the conductance and capacitance - Test method
EN 62631-1 : 2011 DIELECTRIC AND RESISTIVE PROPERTIES OF SOLID INSULATING MATERIALS - PART 1: GENERAL (IEC 62631-1:2011)
EN 60811-302 : 2012 Electric and optical fibre cables - Test methods for non-metallic materials - Part 302: Electrical tests - Measurement of the d.c. resistivity at 23 °C and 100 °C of filling compounds
EN 60422:2013 Mineral insulating oils in electrical equipment - Supervision and maintenance guidance
EN 60641-2:2004 Pressboard and presspaper for electrical purposes - Part 2: Methods of tests
EN 61221:2004 Petroleum products and lubricants - Triaryl phosphate ester turbine control fluids (category ISO-L-TCD) - Specifications

IEC 60250:1969 Recommended methods for the determination of the permittivity and dielectric dissipation factor of electrical insulating materials at power, audio and radio frequencies including metre wavelengths
IEC 60475:2011 Method of sampling insulating liquids
IEC 60093:1980 Methods of test for volume resistivity and surface resistivity of solid electrical insulating materials
IEC 61620:1998 Insulating liquids - Determination of the dielectric dissipation factor by measurement of the conductance and capacitance - Test method

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