ASTM_D_4566_-_20.pdf

Designation:D456620Standard Test Methods forElectrical Performance Properties of Insulations andJackets for Telecommunications Wire and Cable1This standard is issued under the fixed designation D4566;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.1.Scope*1.1 These test methods cover procedures for electricaltesting of thermoplastic insulations and jackets used on tele-communications wire and cable and for the testing of electricalcharacteristics of completed products.To determine the proce-dure to be used on the particular insulation or jacketcompound,or on the end product,reference should be made tothe specification for the product.1.2 These test methods appear in the following sections ofthis standard:Test MethodSectionsElectrical Tests of InsulationIn-process5 9DC proof test9Insulation Defect or Fault Rate8Spark Test7Electrical Tests of Completed Wire and Cable10 52Attenuation25Attenuation,Effects Due to Aging32Attenuation,Effects Due to Elevated Temperature30Attenuation,Effects Due to Humidity31Attenuation to Crosstalk RatioFar End(ACR-F)29Attenuation to Crosstalk RatioNear End(ACR-N)27Capacitance Deviation20Capacitance Difference21Capacitance Unbalance,Pair-to-ground(CUPG)23Capacitance Unbalance,Pair-to-pair(CUPP)22Capacitance Unbalance,Pair-to-support Wire24Characteristic ImpedanceTest Method 1:Propagation Con-stant and Capacitance48Characteristic ImpedanceTest Method 2:Single-ended Mea-surements49Characteristic ImpedanceTest Method 3:Least SquaresFunction Fit50Coaxial Capacitance(Capacitance to Water)18Conductor Continuity12Conductor Resistance(CR)14Conductor Resistance Unbalance(CRU of Pairs)16Continuity of Other Metallic Elements13Crosses Test(Continuity Between Wires of Different Pairs)36Crosstalk Loss,Far-end28Crosstalk Loss,Near-end26DC Proof Test,Core-to-internal Shield(Screen)41DC Proof Test,Core-to-shield39DC Proof Test,Core-to-support Wire40DC Proof Test,Internal Shield(Screen)-to-shield42DC Proof Test,Other Required Isolations43DC Proof Test,Wire-to-wire38Fault Rate Test(Air Core Only)34Insulation Resistance(IR)33Jacket Voltage Breakdown Rating Test37Mutual Capacitance(CM)19Mutual Conductance17Phase Constant45Phase Delay46Phase Velocity47Resistance of Other Metallic Cable Elements15Shorts Test(Continuity Between Wires of a Pair)35Structural Return Loss and Return Loss51Unbalance Attenuation(Conversion Losses)52Voltage Surge Test441.3 The values stated in inch-pound units are to be regardedas standard.The values given in parentheses are mathematicalconversions to SI units that are provided for information onlyand are 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 environmental practices and deter-mine the applicability of regulatory limitations prior to use.Specific hazard statements are given in Sections 7 and 38.1.5 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:2B193 Test Method for Resistivity of Electrical ConductorMaterialsD150 Test Methods for AC Loss Characteristics and Permit-tivity(Dielectric Constant)of Solid Electrical InsulationD1711 Terminology Relating to Electrical InsulationD2633 Test Methods for Thermoplastic Insulations and1These 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 Oct.1,2020.Published November 2020.Originallyapproved in 1986.Last previous edition approved in 2014 as D4566 14.DOI:10.1520/D4566-20.2For 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 this 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.Jackets for Wire and CableD3426 Test Method for Dielectric Break