1、Designation: D 5222 00Standard Specification forHigh Fire-Point Mineral Electrical Insulating Oils1This standard is issued under the fixed designation D 5222; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last revisio
2、n. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon (e) indicates an editorial change since the last revision or reapproval.1. Scope1.1 This specification describes a high fire-point mineral oilbased insulating fluid, for use as a dielectric and coolingmedium in ne
3、w and existing power and distribution electricalapparatus, such as transformers and switchgear.1.2 High fire-point insulating oil differs from conventionalmineral insulating oil by possessing a fire-point of at least300C. High fire-point mineral insulating oils are also referredto as “less flammable
4、” mineral insulating oils.This property isnecessary in order to comply with certain application require-ments of the National Electrical Code (Article 450-23) or otheragencies. The material discussed in this specification is mis-cible with other petroleum based insulating oils. Mixing highfire-point
5、 liquids with lower fire point hydrocarbon insulatingoils (for example, Specification D 3487 mineral oil) may resultin fire points of less than 300C.1.3 This specification is intended to define a high fire-pointelectrical mineral insulating oil that is compatible with typicalmaterial of construction
6、 of existing apparatus and will satis-factorily maintain its functional characteristic in its applicationin this application. The material described in this specificationmay not be miscible with electrical insulating liquids ofnon-petroleum origin. The user should contact the manufac-turer of the hi
7、gh fire-point insulating oil for guidance in thisrespect.1.4 This specification applies only to new insulating mate-rial oil as received prior to any processing. Information onin-service maintenance testing is available in appropriateguides.2The user should contact the manufacturers of theequipment
8、or oil if questions of recommended characteristicsor maintenance procedures arise.2. Referenced Documents2.1 ASTM Standards:D 92 Test Method for Flash and Fire Points by ClevelandOpen Cup3D 97 Test Method for Pour Point of Petroleum Products3D 117 Guide to Sampling Test Methods and Standard Prac-tic
9、es for Electrical Insulating Oils of Petroleum Origin4D 445 Test Method for Kinematic Viscosity of Transparentand Opaque Liquids3D 611 Test Methods for Aniline Point and Mixed AnilinePoint of Petroleum Products and Hydrocarbon Solvents3D 664 Test Method for Acid Number of Petroleum Productsby Potent
10、iometric Titration3D 877 Test Method for Dielectric Breakdown Voltage ofInsulating Liquids Using Disk Electrodes4D 878 Test Method for Inorganic Chlorides and Sulfates inInsulating Oils4D 923 Practices for Sampling Electrical Insulating Liquids4D 924 Test Method for Dissipation Factor (or Power Fact
11、or)and Relative Permittivity (Dielectric Constant) of Electri-cal Insulating Liquids4D 971 Test Method for Interfacial Tension of Oil AgainstWater by the Ring Method4D 974 Test Method for Acid and Base Number by Color-Indicator Titration3D 1275 Test Method for Corrosive Sulfur in ElectricalInsulatin
12、g Oils4D 1298 Practice for Density, Relative Density (SpecificGravity), or API Gravity of Crude Petroleum and LiquidPetroleum Products by Hydrometer Method3D 1500 Test Method for ASTM Color of Petroleum Prod-ucts (ASTM Color Scale)3D 1524 Test Method for Visual Examination of Used Elec-trical Insula
13、ting Oils of Petroleum Origin in the Field4D 1533 Test Methods for Water in Insulating Liquids (KarlFischer Method)4D 2112 Test Method for Oxidation Stability of InhibitedMineral Insulating Oil by Rotating Bomb4D 2300 Test Method for Gassing of Insulating Oils UnderElectrical Stress and Ionization (
14、Modified Pirelli Method)4D 2440 Test Method for Oxidation Stability of MineralInsulating Oil4D 2668 Test Method for 2,6-Ditertiary-Butyl Para-Cresoland 2,6-Ditertiary-Butyl Phenol in Electrical Insulating Oilby Infrared Absorption4D 2864 Terminology Relating to Electrical Insulating Liq-uids and Gas
15、es4D 3487 Specification for Mineral Insulating Oil Used in1This specification is under the jurisdiction of ASTM Committee D-27 onElectrical Insulating Liquids and Gasesand is the direct responsibility of Subcom-mittee D27.01on Mineral.Current edition approved Oct. 00. 2000. Published December 2000.
16、Originallypublished as D 522292. Last previous edition D 522298.2Refer to American National Standard C57.121 IEEE Guide for Acceptance andMaintenance of Less Flammable Hydrocarbon Fluid in Transformers.3Annual Book of ASTM Standards, Vol 05.01.4Annual Book of ASTM Standards, Vol 10.03.1Copyright AST
17、M, 100 Barr Harbor Drive, West Conshohocken, PA 19428-2959, United States.Electrical Apparatus4D 4059 Test Method for Analysis of Polychlorinated Biphe-nyls in Insulating Liquids by Gas Chromatography4D 4768 Test Method for Analysis of 2,6-Ditertiary-ButylPara-Cresol and 2,6-Ditertiary-Butyl Phenol
18、in InsulatingFluids by Gas Chromatography42.2 National Fire Protection Association Standards:National Electrical Code, Article 450-2352.3 Institute of Electrical and Electronics Engineers Stan-dard:C57.121 Guide for Acceptance and Maintenance of Less-Flammable Hydrocarbon Fluids and its Maintenance
19、inTransformers63. Terminology3.1 Definitions of terms related to this specification aregiven in Terminology D 2864. Significance of tests related tothis specification can be found in Guide D 117 and Specifica-tion D 3487.4. Sampling and Testing4.1 Take all oil samples in accordance with Test Methods
20、D 923.4.2 Perform each test in accordance with the ASTM testmethod specified in Table 1.NOTE 1Because of the different needs of various users, items relatingto packaging, labeling, and inspection are considered to be subject tobuyer-seller agreement.NOTE 2In addition to all other tests listed herein
21、, it is soundengineering practice for the apparatus manufacturer to perform anevaluation of insulating oils in insulation systems, prototype structures, orfull-scale apparatus, or any combination thereof, to ensure suitable servicelife.5. Property Requirements5.1 High fire-point mineral insulating o
22、il, as received, shallconform to the requirements of Table 1. The significance ofthese properties is covered in Guide D 117.6. Keywords6.1 electrical insulating oil; fire point; flammability; insu-lating fluid; mineral insulating oil5Available from the National Fire Protection Association, Batteryma
23、rch Park,Quincy, MA 02269.6Available from the Institute of Electrical and Electronics Engineers, Inc. 345 E.47th St., New York, NY 10017-2394.TABLE 1 Property Requirements for High Fire-Point MineralInsulating Oils, as ReceivedProperty LimitASTM TestMethodPhysical:Visual examination Bright and clear
24、 D 1524Color, ASTM units, max. 2.5 D 1500Fire point, C, min. 300 D 92Flash point, C, min. 275 D 92Aniline Point, C, max. 125 D 611Interfacial tension at 25 C, mN/m, min. 40 D 971Pour point, C, max. 21 D 97Relative density, 15 C, max. 0.91 D 1298Viscosity, kinematic, cSt, max. D 4450 C (32 F) 250040
25、C (104 F) 130.0100 C (212 F) 14.0Electrical:Dielectric breakdown voltage at 60 HzDisk electrodes, kV, min. 30 D 877Gassing tendency, l/min., max. +30 D 2300Dissipation factor at 60 Hz, %, max. D 92425 C 0.05100 C 0.30Chemical:Corrosive sulfur non-corrosive D 1275Inorganic chlorides and sulfates non-
26、detectable D 878Acid number, mg KOH/g, max. 0.03 D 664 or D 974Water content, ppm, max. 35 D 1533Oxidation stabilityA72 h: D 2440sludge, % by mass, max 0.15acid number, mg KOH/g, max 0.30Oxidation stability,A164 hsludge, % by mass, max 0.30acid number, mg KOH/g, max 0.60Oxidation stability (rotating
27、 bomb), minA195 D 2112Oxidation inhibitor content, % by mass,max.0.40 D 2668 or D 4768PCB content, ppm: non-detectable D 4059AThe values for oxidation tests are typical requirements expected from a type IIoil (according to Specification D 3487). All the commercially available highfire-point insulati
28、ng liquid contained 0.4 % of antioxidant.D 52222The American Society for Testing and Materials takes no position respecting the validity of any patent rights asserted in connectionwith any item mentioned in this standard. Users of this standard are expressly advised that determination of the validit
29、y of any suchpatent rights, and the risk of infringement of such rights, are entirely their own responsibility.This standard is subject to revision at any time by the responsible technical committee and must be reviewed every five years andif not revised, either reapproved or withdrawn. Your comment
30、s are invited either for revision of this standard or for additional standardsand should be addressed to ASTM Headquarters. Your comments will receive careful consideration at a meeting of the responsibletechnical committee, which you may attend. If you feel that your comments have not received a fa
31、ir hearing you should make yourviews known to the ASTM Committee on Standards, at the address shown below.This standard is copyrighted by ASTM, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.Individual reprints (single or multiple copies) of this standard may be obtained by contacting ASTM at the above address or at610-832-9585 (phone), 610-832-9555 (fax), or serviceastm.org (e-mail); or through the ASTM website (www.astm.org).D 52223
