ASTM_D_350_-_21.pdf

Designation:D35021Standard Test Methods forFlexible Treated Sleeving Used for Electrical Insulation1This standard is issued under the fixed designation D350;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of last revision.A number in parentheses indicates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.This standard has been approved for use by agencies of the U.S.Department of Defense.1.Scope1.1 These test methods cover procedures for testing electri-cal insulating sleeving comprising a flexible tubular productmade from a woven textile fibre base,such as cotton,rayon,nylon,or glass,thereafter impregnated,or coated,or impreg-nated and coated,with a suitable dielectric material.1.2 The procedures appear in the following sections:ProceduresSection(s)Selection of Test Material5Conditioning6Dimensions7 to 11Dielectric Breakdown Voltage12 to 17Brittleness Temperature18 to 21Flammability(See Test Methods D8355)22 to 23Dielectric Breakdown Voltage After Short-Time Aging24 to 28Oil Resistance29 to 32Thermal Endurance33 to 39Compatibility of Sleeving with Magnet Wire Insulation40 to 54Solvent Resistance55 to 60Hydrolytic Stability61 to 67Effect of Push-Back After Heat Aging68 to 731.3 The values stated in inch-pound units,except for C,areto be regarded as the standard.The values in parentheses aremathematical conversions to SI units that are provided forinformation only and are not considered standard.1.4 This is a fire-test-response standard.See Test MethodsD8355,which contains procedures for flammability tests.1.5 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 environmental practices and deter-mine the applicability of regulatory limitations prior to use.For specific hazard statements,see 40.2 and 58.1.1.NOTE1This standard resembles IEC 60684-2,Specification forFlexible Insulating SleevingPart 2 Methods of Test,in a number ofways,but is not consistently similar throughout.The data obtained usingeither standard are not necessarily technically equivalent.1.6 This international standard was developed in accor-dance with internationally recognized principles on standard-ization established in the Decision 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 Electrical Insulating Materialsat Commercial Power FrequenciesD374 Test Methods for Thickness of Solid Electrical Insu-lation(Metric)D0374_D0374MD471 Test Method for Rubber PropertyEffect of LiquidsD746 Test Method for Brittleness Temperature of Plasticsand Elastomers by ImpactD876 Test Methods for Nonrigid Vinyl Chloride PolymerTubing Used for Electrical InsulationD1711 Terminology Relating to Electrical InsulationD2307 Test Method for Thermal Endurance of Film-Insulated Round Magnet WireD3487 Specification for Mineral Insulating Oil Used inElectrical ApparatusD3636 Practice for Sampling and Judging Quality of SolidElectrical Insulating MaterialsD5423 Specification for Forced-Convection Laboratory Ov-ens for Evaluation of Electrical InsulationD6054 Practice for Conditioning Electrical Insulating Mate-rials for Testing(Withdrawn 2012)3D8355 Test Methods for Flammability of Electrical Insulat-ing Materials Used for Sleeving or TubingE145 Specification for Gravity-Convection and Forced-Ventilation OvensE176 Terminology of Fire Standards1These test methods are under the jurisdiction of ASTM 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 1932.Last previous edition approved in 2013 as D350 13.DOI:10.1520/D0350-21.2For 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.3The last approved version of this historical standard is referenced onwww.astm.org.Copyright 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.12.2 IEEE Standard:4IEEE 101 Guide for the StatisticalAnalysis of Thermal LifeTest Data2.3 IEC Standard:5IEC 60684-2Specific