ASTM D3394-1994(2005) Standard Test Methods for Sampling and Testing Electrical Insulating Board《电绝缘板的抽样和试验的标准试验方法》.pdf
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1、Designation: D 3394 94 (Reapproved 2005)An American National StandardStandard Test Methods forSampling and Testing Electrical Insulating Board1This standard is issued under the fixed designation D 3394; the number immediately following the designation indicates the year oforiginal adoption or, in th
2、e case of revision, the year of last revision. 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 These test methods cover the sampling and testing ofelectrical insulating boards. The
3、se boards are porous, usuallyfibrous sheets used for dielectric and structural purposes inelectrical apparatus.1.2 These test methods are not intended for testing vulca-nized fibre or molded laminated sheets.1.3 These test methods are applicable to board materialshaving a nominal thickness of at lea
4、st 0.030 in. (0.76 mm).NOTE 1For materials thinner than 0.030 in. (0.76 mm) see TestMethods D 202.1.4 The test methods appear in the following sections:SectionsASTM MethodReferenceApparent Density 18-23Aqueous Extract Characteristics 36-42 D 202Ash Content 43-46 T 413Compatibility with DielectricLiq
5、uids47-52 D 664, D 877, D 924,D 971, D 974, D 1169,D 1500, D 1816,D 3455, D 3487Compressibility 79-85Conditioning 11 D 685Degree of Polymerization 86-89 D 4243Dielectric Strength in Air 53-59 D 149Dielectric Strength in Oil 60-65 D 149, D 2413, D 3426Dimensions of Sheets 12-17Moisture Content 31-35
6、D 644Oil Absorption 72-78Reports 10Sampling 6-9 D 3636Shrinkage 24-30 D 644Tensile Properties 66-71 D 2021.5 The values stated in inch-pound units are to be regardedas the standard.1.6 This standard does not purport to address all of thesafety concerns, if any, associated with its use. It is theresp
7、onsibility of the user of this standard to consult andestablish appropriate safety and health practices and deter-mine the applicability of regulatory limitations prior to use.2. Referenced Documents2.1 ASTM Standards:2D 149 Test Method for Dielectric Breakdown Voltage andDielectric Strength of Soli
8、d Electrical Insulating Materialsat Commercial Power FrequenciesD 202 Test Methods for Sampling and Testing UntreatedPaper Used for Electrical InsulationD 374 Test Methods for Thickness of Solid Electrical Insu-lationD 586 Test Method for Ash in PaperD 644 Test Method for Moisture Content of Paper a
9、ndPaperboard by Oven DryingD 664 Test Method forAcid Number of Petroleum Productsby Potentiometric TitrationD 685 Practice for Conditioning Paper and Paper Productsfor TestingD 877 Test Method for Dielectric Breakdown Voltage ofInsulating Liquids Using Disk ElectrodesD 924 Test Method for Dissipatio
10、n Factor (or Power Factor)and Relative Permittivity (Dielectric Constant) of Electri-cal Insulating LiquidsD 971 Test Method for Interfacial Tension of Oil AgainstWater by the Ring MethodD 974 Test Method for Acid and Base Number by Color-Indicator TitrationD 1169 Test Method for Specific Resistance
11、 (Resistivity) ofElectrical Insulating LiquidsD 1500 Test Method for ASTM Color of Petroleum Prod-ucts (ASTM Color Scale)D 1816 Test Method for Dielectric Breakdown Voltage ofInsulating Oils of Petroleum Origin Using VDE ElectrodesD 2413 Test Methods for Preparation and Electrical Testingof Insulati
12、ng Paper and Board Impregnated with a LiquidDielectricD 2865 Practice for Calibration of Standards and Equip-ment for Electrical Insulating Materials Testing1These test methods are under the jurisdiction of ASTM Committee D09 onElectrical and Electronic Insulating Materials and are the direct respon
13、sibility ofSubcommittee D 09.19 on Dielectric Sheet and Roll Products.Current edition approved Sept. 1, 2005. Published October 2005. Originallyapproved in 1975. Last previous edition approved in 2000 as D 3394 94 (2000).2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact
14、 ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.D 3426 Test Method for Di
15、electric Breakdown Voltage andDielectric Strength of Solid Electrical Insulating MaterialsUsing Impulse WavesD 3455 Test Methods for Compatibility of ConstructionMaterials with Electrical Insulating Oil of PetroleumOriginD 3487 Specification for Mineral Insulating Oil Used inElectrical ApparatusD 36
16、36 Practice for Sampling and Judging Quality of SolidElectrical Insulating MaterialsD 4243 Method for Measurement of Average ViscometricDegree of Polymerization of New and Aged ElectricalPapers and BoardsE29 Practice for Using Significant Digits in Test Data toDetermine Conformance with Specificatio
17、ns2.2 TAPPI Standard:T 413 Determination of Ash in Paper33. Terminology3.1 Description of Term Specific to This Standard:3.1.1 electrical insulating boarda sheet structure, usuallycomposed of cellulosic fibers, utilized for dielectric or struc-tural purposes or both in a variety of electrical appara
18、tus.Board is herein arbitrarily differentiated from paper in that it isat least 0.030 in. (0.76 mm) thick and is manufactured only insheets of limited length. Other names for these products arepressboard, transformer board, fuller board, and press pan.4. Summary of Test Methods4.1 This standard is a
19、 compilation of test methods forelectrical insulating board. Provisions are included for sam-pling, testing, and judging acceptability of a given quantity ofboard.5. Reagents5.1 Reagents shall conform to the requirements set forth inTest Methods D 202.SAMPLING6. Scope6.1 This test method covers the
20、determination of lot accept-ability of electrical insulating board. It is designed for thepurpose of determining acceptability of all or that portion of ashipment to a customer identified by a manufacturers lotnumber. It is not intended to cover internal board mill qualitycontrol plans. The method i
21、s intended for use in conjunctionwith product specifications for electrical insulating board.7. Terminology7.1 Descriptions of Terms Specific to This Standard:7.1.1 The descriptions of terms used in this test method,with the exception of the definition of “unit of product,” are inaccordance with Pra
22、ctice D 3636.7.1.2 unit of productan entity of electrical insulatingboard on which one or more quality characteristics may bedetermined. A unit of product may be a sheet, pallet, box,carton, case, package, or bundle. The unit of product isestablished by the customer and may or may not be the sameas
23、the unit of purchase, supply, production, or shipment.8. Establishing Acceptable Quality Levels (AQLs)8.1 Acceptable quality levels (AQLs) for each major andminor property (as defined in Practice D 3636) shall be asmutually agreed upon between the purchaser and the seller. Inaddition, group AQLs may
24、 be established for given groups ofproperties and these too shall be mutually agreed upon betweenthe purchaser and the seller.9. Selection of Sample and Identification of Lot Sample9.1 Samples shall be in accordance with Practice D 3636,with the exception of those paragraphs pertaining specificallyt
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