1、Designation:D263321Standard Test Methods forThermoplastic Insulations and Jackets for Wire and Cable1This standard is issued under the fixed designation D2633;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of last revision.
2、A number in parentheses indicates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope*1.1 These test methods cover procedures for the testing ofthermoplastic insulations and jackets used on insulated wireand cable.To determine
3、 the test to be made on the particularinsulation or jacket compound,refer to the product specifica-tion for that type.These test methods do not apply to the classof products known as flexible cords.The electrical tests oninsulation and water-absorption tests do not apply to the classof products havi
4、ng a separator between the conductor and theinsulation.1.2 These test methods pertain to insulation or jacketmaterial for electrical wires and cables.In many instances theinsulation or jacket material cannot be tested unless it has beenformed around a conductor or cable.Therefore,tests are doneon in
5、sulated or jacketed wire or cable in these test methodssolely to determine the relevant property of the insulation orjacket material and not to test the conductor or completedcable.1.3 Whenever two sets of values are stated,in differentunits,the values in the first set are regarded as standard,while
6、the values in parentheses are provided for information only andare not considered standard.1.4 This standard does not purport to address all of thesafety concerns,if any,associated with its use.It is theresponsibility of the user of this standard to establish appro-priate safety,health,and environme
7、ntal practices and deter-mine the applicability of regulatory limitations prior to use.For specific hazards see Section 4 and for fire test safetycaveats see Test Method D8354.1.5 These test methods appear in the following sections:Test MethodSection(s)Cold Bend Test75 to 77Dielectric Strength Reten
8、tion Test45 to 51Electrical Tests of Insulation17 to 29Heat Distortion Test74Heat Shock Test73Insulation Resistance Test30 to 37Test MethodSection(s)Partial-discharge Extinction Level Test38 to 44Physical Tests of Insulation and Jackets5 to 16Flammability63(Test Method D8354)Surface Resistivity Test
9、64 to 67Thermal Tests72 to 77Track Resistance Test78 to 81U-bend Discharge Test68 to 71Vertical Flame Test63Water Absorption Tests,Accelerated52 to 621.6 This international standard was developed in accor-dance with internationally recognized principles on standard-ization established in the Decisio
10、n on Principles for theDevelopment of International Standards,Guides and Recom-mendations issued by the World Trade Organization TechnicalBarriers to Trade(TBT)Committee.2.Referenced Documents2.1 ASTM Standards:2D149 Test Method for Dielectric Breakdown Voltage andDielectric Strength of Solid Electr
11、ical Insulating Materialsat Commercial Power FrequenciesD150 Test Methods for AC Loss Characteristics and Permit-tivity(Dielectric Constant)of Solid Electrical InsulationD257 Test Methods for DC Resistance or Conductance ofInsulating MaterialsD374/D374M Test Methods for Thickness of Solid Electri-ca
12、l InsulationD471 Test Method for Rubber PropertyEffect of LiquidsD573 Test Method for RubberDeterioration in an AirOvenD638 Test Method for Tensile Properties of PlasticsD1248 Specification for Polyethylene Plastics ExtrusionMaterials for Wire and CableD1711 Terminology Relating to Electrical Insula
13、tionD2132 Test Method for Dust-and-Fog Tracking and ErosionResistance of Electrical Insulating MaterialsD3755 Test Method for Dielectric Breakdown Voltage andDielectric Strength of Solid Electrical Insulating MaterialsUnder Direct-Voltage Stress1These test methods are under the jurisdiction of ASTM
14、Committee D09 onElectrical and Electronic Insulating Materials and are the direct responsibility ofSubcommittee D09.07 on Electrical Insulating Materials.Current edition approved Jan.1,2021.Published February 2021.Originallyapproved in 1967.Last previous edition approved in 2020 as D2633 20.DOI:10.1
15、520/D2633-21.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.For Annual Book of ASTMStandards volume information,refer to the standards Document Summary page onthe ASTM website.*A Summary of Changes section appears at the end of t
16、his standardCopyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United StatesThis international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for theDevelopment of International Standards,Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade(TBT)Committee.1D5423 Specification for Forced-Convection Laboratory Ov-ens for E
