ASTM_D_470_-_13.pdf

Designation:D47013Standard Test Methods forCrosslinked Insulations and Jackets for Wire and Cable1This standard is issued under the fixed designation D470;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 cross-linked insulations and jackets for wire and cable.To determinethe test to be made on the particular insulation or jacket,referto the product specification for that type.These test methods donot apply to the class of products known as flexible cords.1.2 In many instances the insulation or jacket cannot betested unless it has been formed around a conductor or cable.Therefore,tests are done on insulated or jacketed wire or cablein these test methods solely to determine the relevant propertyof the insulation or jacket and not to test the conductor orcompleted cable.1.3 The procedures appear in the following sections:SectionsAC and DC Voltage Withstand Tests22 to 29Capacitance and Dissipation Factor Tests38 to 44Cold Bend128Cold Bend,Long-Time Voltage Test on Short Specimens51 to 57Double AC Voltage Test on Short Specimens45 to 50Electrical Tests of Insulation17 to 64Heat Distortion Test127Horizontal Flame Test100 to 104Insulation Resistance Tests on Completed Cable30 to 37Mineral Filler Content,Determination of111 to 115Ozone Resistance Test87 to 99Partial-Discharge Test58 to 64Physical Tests of Insulation and Jacket Compounds5 to 16Surface Resistivity Test116 to 120Track Resistance Test129 to 132U-Bend Discharge Test121 to 125Water Absorption Test65 to 71Water Absorption Test,Accelerated72 to 86Water Absorption Test on Fibrous Coverings105 to 1101.4 Whenever two sets of values are presented,in differentunits,the values in the first set are the standard,while those inthe parentheses are for information only.1.5 This standard does not purport to address all of thesafety problems,if any,associated with its use.It is theresponsibility of the user of this standard to establish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use.For specific hazardssee Section 4.2.Referenced Documents2.1 ASTM Standards:2D149 Test Method for Dielectric Breakdown Voltage andDielectric Strength of Solid Electrical 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 MaterialsD412 Test Methods for Vulcanized Rubber and Thermoplas-tic ElastomersTensionD454 Test Method for Rubber Deterioration by Heat andAirPressureD572 Test Method for RubberDeterioration by Heat andOxygenD573 Test Method for RubberDeterioration in an AirOvenD1193 Specification for Reagent WaterD1711 Terminology Relating to Electrical InsulationD2132 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 StressD5025 Specification for Laboratory Burner Used for Small-Scale Burning Tests on Plastic MaterialsD5207 Practice for Confirmation of 20mm(50W)and125mm(500W)Test Flames for Small-Scale BurningTests on Plastic Materials1These test methods are under the jurisdiction of ASTM Committee D09 onElectrical and Electronic Insulating Materials and are the direct responsibility ofSubcommittee D09.18 on Solid Insulations,Non-Metallic Shieldings and Coveringsfor Electrical and Telecommunication Wires and Cables.Current edition approved Feb.1,2013.Published February 2013.Originallyapproved in 1937.Last previous edition approved in 2005 as D470 05.DOI:10.1520/D0470-13.2For 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.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 D5423 Specification for Forced-Convection Laboratory Ov-ens for Evaluation of Electrical Insulation2.2 ICEA Standard:T-24-380 Guide for Partial-Discharge Procedure33.Terminology3.1 DefinitionsFor definitions of terms used in these testmethods,refer to Terminology D1711.3.2 Definitions of Terms Specific to This Standard:3.2.1 aging(act of),nexposure of material to air or oil ata temperature and time as specified in the relevant materialspecification for that material.3.3 Symbols:3.3.1 kcmilthousands of circular mils.4.Hazards4.1 Mercury:4.1.1 Mercury metal vapor poisoning has long been recog-n