ASTM D3487-08
(Specification)Standard Specification for Mineral Insulating Oil Used in Electrical Apparatus
Standard Specification for Mineral Insulating Oil Used in Electrical Apparatus
ABSTRACT
This specification covers two types of new mineral insulating oils of petroleum origin for use as an insulating and cooling medium in new and existing power and distribution electrical apparatus, such as transformers, regulators, reactors, circuit breakers, switchgear, and attendant equipment. It is the intension of this specification to define a mineral insulating oil that is functionally interchangeable and miscible with existing oils, is compatible with existing apparatus and with appropriate field maintenance, and will satisfactorily maintain its functional characteristics in its application in electrical equipment. Type I mineral oils are used for apparatus where normal oxidation resistance is required, where as, Type II mineral oils are used for apparatus where greater oxidation resistance is required. When examined with corresponding test methods, sampled specimens shall conform accordingly to physical (aniline point, color, flash point, interfacial tension, pour point, relative density or specific gravity, viscosity, and appearance), electrical (dielectric breakdown voltage, gassing tendency, and dissipation or power factor), and chemical (oxidation stability, oxidation inhibitor content, corrosive sulfur content, water content, neutralization number, and PCB content) property requirements.
SCOPE
1.1 This specification covers new mineral insulating oil of petroleum origin for use as an insulating and cooling medium in new and existing power and distribution electrical apparatus, such as transformers, regulators, reactors, circuit breakers, switchgear, and attendant equipment.
1.2 This specification is intended to define a mineral insulating oil that is functionally interchangeable and miscible with existing oils, is compatible with existing apparatus and with appropriate field maintenance, and will satisfactorily maintain its functional characteristics in its application in electrical equipment. This specification applies only to new insulating oil as received prior to any processing.
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Designation: D3487 – 08
Standard Specification for
1
Mineral Insulating Oil Used in Electrical Apparatus
This standard is issued under the fixed designation D3487; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the Department of Defense.
1. Scope D877 Test Method for Dielectric Breakdown Voltage of
Insulating Liquids Using Disk Electrodes
1.1 This specification covers new mineral insulating oil of
D923 Practices for Sampling Electrical Insulating Liquids
petroleum origin for use as an insulating and cooling medium
D924 TestMethodforDissipationFactor(orPowerFactor)
innewandexistingpoweranddistributionelectricalapparatus,
and Relative Permittivity (Dielectric Constant) of Electri-
such as transformers, regulators, reactors, circuit breakers,
cal Insulating Liquids
switchgear, and attendant equipment.
D971 Test Method for Interfacial Tension of Oil Against
1.2 This specification is intended to define a mineral insu-
Water by the Ring Method
latingoilthatisfunctionallyinterchangeableandmisciblewith
D974 Test Method for Acid and Base Number by Color-
existing oils, is compatible with existing apparatus and with
2 Indicator Titration
appropriate field maintenance, and will satisfactorily main-
D1275 Test Method for Corrosive Sulfur in Electrical Insu-
tain its functional characteristics in its application in electrical
lating Oils
equipment.Thisspecificationappliesonlytonewinsulatingoil
D1298 Test Method for Density, Relative Density (Specific
as received prior to any processing.
Gravity), or API Gravity of Crude Petroleum and Liquid
2. Referenced Documents
Petroleum Products by Hydrometer Method
3
D1500 TestMethodforASTMColorofPetroleumProducts
2.1 ASTM Standards:
(ASTM Color Scale)
D88 Test Method for Saybolt Viscosity
D1524 Test Method for Visual Examination of Used Elec-
D92 Test Method for Flash and Fire Points by Cleveland
trical Insulating Oils of Petroleum Origin in the Field
Open Cup Tester
D1533 Test Method for Water in Insulating Liquids by
D97 Test Method for Pour Point of Petroleum Products
Coulometric Karl Fischer Titration
D445 Test Method for Kinematic Viscosity of Transparent
D1816 Test Method for Dielectric Breakdown Voltage of
and Opaque Liquids (and Calculation of Dynamic Viscos-
InsulatingOilsofPetroleumOriginUsingVDEElectrodes
ity)
D1903 Practice for Determining the Coefficient of Thermal
D611 Test Methods for Aniline Point and Mixed Aniline
Expansion of Electrical Insulating Liquids of Petroleum
Point of Petroleum Products and Hydrocarbon Solvents
Origin, and Askarels
D2112 Test Method for Oxidation Stability of Inhibited
Mineral Insulating Oil by Pressure Vessel
1
This specification is under the jurisdiction of ASTM Committee D27 on
D2300 Test Method for Gassing of Electrical Insulating
Electrical Insulating Liquids and Gases and is the direct responsibility of Subcom-
Liquids Under Electrical Stress and Ionization (Modified
mittee D27.01 on Mineral.
Current edition approved Nov. 1, 2008. Published December 2008. Originally Pirelli Method)
approved in 1976. Last previous edition approved in 2006 as D3487–00(2006).
D2440 Test Method for Oxidation Stability of Mineral
2
Refer to American National Standard C57.106. Guide for Acceptance and
Insulating Oil
Maintenance of Insulating Oil in Equipment (IEEE Standard64). Available from
D2668 Test Method for 2,6-di-tert-Butyl- p-Cresol and
AmericanNationalStandardsInstitute(ANSI),25W.43rdSt.,4thFloor,NewYork,
NY 10036, http://www.ansi.org.
2,6-di-tert-Butyl Phenol in Electrical Insulating Oil by
3
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Infrared Absorption
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
D2717 Test Method for Thermal Conductivity of Liquids
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. D2766 TestMethodforSpecificHeatofLiquidsandSolids
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1
---------------------- Page: 1 ----------------------
D3487 – 08
If temperatures higher than those recommended for the operating
D3300 Test Method for Dielectric Breakdown Voltage of
pressure are used, the oil should be tested for inhibitor content and
Insulating Oils of Petroleum Origin Under Impulse Con-
inhibitor added as necessary to return inhibitor content to its initial value.
ditions
Attempts to dry apparatus containing appreciable amounts of free water
D4059 Test Method forAnalysis of Polychlorinated Biphe-
may re
...
This document is not anASTM standard and is intended only to provide the user of anASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately,ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation:D 3487–00 (Reapproved 2006) Designation: D 3487 – 08
Standard Specification for
1
Mineral Insulating Oil Used in Electrical Apparatus
This standard is issued under the fixed designation D 3487; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the Department of Defense.
1. Scope
1.1 Thisspecificationcoversnewmineralinsulatingoilofpetroleumoriginforuseasaninsulatingandcoolingmediuminnew
andexistingpoweranddistributionelectricalapparatus,suchastransformers,regulators,reactors,circuitbreakers,switchgear,and
attendant equipment.
1.2 Thisspecificationisintendedtodefineamineralinsulatingoilthatisfunctionallyinterchangeableandmisciblewithexisting
2
oils, is compatible with existing apparatus and with appropriate field maintenance, and will satisfactorily maintain its functional
characteristics in its application in electrical equipment. This specification applies only to new insulating oil as received prior to
any processing.
2. Referenced Documents
3
2.1 ASTM Standards:
D88 Test Method for Saybolt Viscosity
D92 Test Method for Flash and Fire Points by Cleveland Open Cup Tester
D97 Test Method for Pour Point of Petroleum Products
D445 Test Method for Kinematic Viscosity of Transparent and Opaque Liquids (and Calculation of Dynamic Viscosity)
D611 Test Methods for Aniline Point and Mixed Aniline Point of Petroleum Products and Hydrocarbon Solvents
D877 Test Method for Dielectric Breakdown Voltage of Insulating Liquids Using Disk Electrodes
D923 Practices for Sampling Electrical Insulating Liquids
D924 Test Method for Dissipation Factor (or Power Factor) and Relative Permittivity (Dielectric Constant) of Electrical
Insulating Liquids
D971 Test Method for Interfacial Tension of Oil Against Water by the Ring Method
D974 Test Method for Acid and Base Number by Color-Indicator Titration
D1275 Test Method for Corrosive Sulfur in Electrical Insulating Oils
D1298 TestMethodforDensity,RelativeDensity(SpecificGravity),orAPIGravityofCrudePetroleumandLiquidPetroleum
Products by Hydrometer Method
D1500 Test Method for ASTM Color of Petroleum Products (ASTM Color Scale)
D1524 Test Method for Visual Examination of Used Electrical Insulating Oils of Petroleum Origin in the Field
D1533 Test Method for Water in Insulating Liquids by Coulometric Karl Fischer Titration
D1816 Test Method for Dielectric Breakdown Voltage of Insulating Oils of Petroleum Origin Using VDE Electrodes
D1903 PracticeforDeterminingtheCoefficientofThermalExpansionofElectricalInsulatingLiquidsofPetroleumOrigin,and
Askarels
D2112 Test Method for Oxidation Stability of Inhibited Mineral Insulating Oil by Pressure Vessel
D2300 Test Method for Gassing of Electrical Insulating Liquids Under Electrical Stress and Ionization (Modified Pirelli
Method)
D2440 Test Method for Oxidation Stability of Mineral Insulating Oil
D2668 Test Method for 2,6-di-tert-Butyl- p-Cresol and 2,6-di-tert-Butyl Phenol in Electrical Insulating Oil by Infrared
Absorption
1
This specification is under the jurisdiction ofASTM Committee D27 on Electrical Insulating Liquids and Gases and is the direct responsibility of Subcommittee D27.01
on Mineral.
Current edition approved Sept.Nov. 1, 2006.2008. Published September 2006.December 2008. Originally approved in 1976. Last previous edition approved in 20002006
as D3487–00(2006).
2
Refer toAmerican National Standard C57.106. Guide forAcceptance and Maintenance of Insulating Oil in Equipment (IEEE Standard64).Available fromAmerican
National Standards Institute (ANSI), 25 W. 43rd St., 4th Floor, New York, NY 10036, http://www.ansi.org.
3
ForreferencedASTMstandards,visittheASTMwebsite,www.astm.org,orcontactASTMCustomerServiceatservice@astm.org.For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1
---------------------- Page: 1 ----------------------
D 3487 – 08
D2717 Test Method for Thermal Conductivity of Liquids
D2766 Test Method for Specific Heat of Liquids and Solids
D3300 Test Method for Dielectric Breakdown Voltage of Insulating Oils of Petroleum Origin Under Impulse Conditions
D4059 Test Method for Analysis of Polychlorinated Biph
...
This document is not anASTM standard and is intended only to provide the user of anASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately,ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation:D 3487–00 (Reapproved 2006) Designation: D 3487 – 08
Standard Specification for
1
Mineral Insulating Oil Used in Electrical Apparatus
This standard is issued under the fixed designation D 3487; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the Department of Defense.
1. Scope
1.1 Thisspecificationcoversnewmineralinsulatingoilofpetroleumoriginforuseasaninsulatingandcoolingmediuminnew
andexistingpoweranddistributionelectricalapparatus,suchastransformers,regulators,reactors,circuitbreakers,switchgear,and
attendant equipment.
1.2 Thisspecificationisintendedtodefineamineralinsulatingoilthatisfunctionallyinterchangeableandmisciblewithexisting
2
oils, is compatible with existing apparatus and with appropriate field maintenance, and will satisfactorily maintain its functional
characteristics in its application in electrical equipment. This specification applies only to new insulating oil as received prior to
any processing.
2. Referenced Documents
3
2.1 ASTM Standards:
D88 Test Method for Saybolt Viscosity
D92 Test Method for Flash and Fire Points by Cleveland Open Cup Tester
D97 Test Method for Pour Point of Petroleum Products
D445 Test Method for Kinematic Viscosity of Transparent and Opaque Liquids (and Calculation of Dynamic Viscosity)
D611 Test Methods for Aniline Point and Mixed Aniline Point of Petroleum Products and Hydrocarbon Solvents
D877 Test Method for Dielectric Breakdown Voltage of Insulating Liquids Using Disk Electrodes
D923 Practices for Sampling Electrical Insulating Liquids
D924 Test Method for Dissipation Factor (or Power Factor) and Relative Permittivity (Dielectric Constant) of Electrical
Insulating Liquids
D971 Test Method for Interfacial Tension of Oil Against Water by the Ring Method
D974 Test Method for Acid and Base Number by Color-Indicator Titration
D1275 Test Method for Corrosive Sulfur in Electrical Insulating Oils
D1298 TestMethodforDensity,RelativeDensity(SpecificGravity),orAPIGravityofCrudePetroleumandLiquidPetroleum
Products by Hydrometer Method
D1500 Test Method for ASTM Color of Petroleum Products (ASTM Color Scale)
D1524 Test Method for Visual Examination of Used Electrical Insulating Oils of Petroleum Origin in the Field
D1533 Test Method for Water in Insulating Liquids by Coulometric Karl Fischer Titration
D1816 Test Method for Dielectric Breakdown Voltage of Insulating Oils of Petroleum Origin Using VDE Electrodes
D1903 PracticeforDeterminingtheCoefficientofThermalExpansionofElectricalInsulatingLiquidsofPetroleumOrigin,and
Askarels
D2112 Test Method for Oxidation Stability of Inhibited Mineral Insulating Oil by Pressure Vessel
D2300 Test Method for Gassing of Electrical Insulating Liquids Under Electrical Stress and Ionization (Modified Pirelli
Method)
D2440 Test Method for Oxidation Stability of Mineral Insulating Oil
D2668 Test Method for 2,6-di-tert-Butyl- p-Cresol and 2,6-di-tert-Butyl Phenol in Electrical Insulating Oil by Infrared
Absorption
1
This specification is under the jurisdiction ofASTM Committee D27 on Electrical Insulating Liquids and Gases and is the direct responsibility of Subcommittee D27.01
on Mineral.
Current edition approved Sept.Nov. 1, 2006.2008. Published September 2006.December 2008. Originally approved in 1976. Last previous edition approved in 20002006
as D3487–00(2006).
2
Refer toAmerican National Standard C57.106. Guide forAcceptance and Maintenance of Insulating Oil in Equipment (IEEE Standard64).Available fromAmerican
National Standards Institute (ANSI), 25 W. 43rd St., 4th Floor, New York, NY 10036, http://www.ansi.org.
3
ForreferencedASTMstandards,visittheASTMwebsite,www.astm.org,orcontactASTMCustomerServiceatservice@astm.org.For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1
---------------------- Page: 1 ----------------------
D 3487 – 08
D2717 Test Method for Thermal Conductivity of Liquids
D2766 Test Method for Specific Heat of Liquids and Solids
D3300 Test Method for Dielectric Breakdown Voltage of Insulating Oils of Petroleum Origin Under Impulse Conditions
D4059 Test Method for Analysis of Polychlorinated Biph
...
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