ASTM_D_3555_-_20e1.pdf

Designation:D3555201Standard Specification forTrack-Resistant Crosslinked Polyethylene Insulation forWire and Cable,90 C Operation1This standard is issued under the fixed designation D3555;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.1NOTEEditorially corrected Table 1 and 4.1 in October 2020.1.Scope*1.1 This specification covers a track-resistant crosslinkedpolyethylene insulation,the base polymer which consistssubstantially of polyethylene or its copolymers.This insulationshall be carbon black pigmented,or colored and suitablyprotected to enable UV stability.1.2 This type of insulation is considered suitable for use onwire or cable that will be used for continuous operation atconductor temperatures up to 90 C.1.3 This insulation is suitable for use on wire or in cableused for power transmission in overhead spaced-line service,installed at temperatures above 25 and exposed to sunlightand other atmospheric environments between 55 and+90 C.1.4 In many instances,the insulation cannot be tested unlessit has been formed around a conductor.Therefore,tests done oninsulated wire in this standard are solely to determine therelevant property of the insulation and not to test the conductoror completed cable.1.5 Whenever two sets of values are presented,in differentunits,the values in the first set are to be regarded as standard.The values given in parentheses are mathematical conversionsthat are provided for information only and are not consideredstandard.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:2D470 Test Methods for Crosslinked Insulations and Jacketsfor Wire and CableD1711 Terminology Relating to Electrical InsulationD2132 Test Method for Dust-and-Fog Tracking and ErosionResistance of Electrical Insulating MaterialsD2765 Test Methods for Determination of Gel Content andSwell Ratio of Crosslinked Ethylene Plastics2.2 ICEA Standard:ICEA T-28-562 Test Method for Measurement of Hot Creepof Polymeric Insulations33.Terminology3.1 Definitions:3.1.1 For definitions of terms used in this specification,referto Terminology D1711.3.2 Definitions of Terms Specific to This Standard:3.2.1 aging,(act of),nexposure of materials to air at atemperature of 121 C for 168 h.4.Physical Properties4.1 When tested for physical and aging requirements,heatdistortion,cold bend,U-bend discharge,surface resistivity,andtrack resistance in accordance with Test Methods D470,thetrack-resistant crosslinked polyethylene insulation shall meetthe requirements specified in Table 1.The insulation is to meetthe requirements for percent hot creep and hot set specified inTable 1.The test is to be performed in accordance with ICEAT-28-562.Only in case of dispute,the solvent extraction(gelcontent and swell ratio)test in Test Methods D2765 is to be the1This specification is under the jurisdiction of ASTM Committee D09 onElectrical and Electronic Insulating Materials and is the direct responsibility ofSubcommittee D09.07 on Electrical Insulating Materials.Current edition approved Aug.1,2020.Published September 2020.Originallyapproved in 1977.Last previous edition approved in 2018 as D3555 07(2018).DOI:10.1520/D3555-20E01.2For 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.3Available from The Insulated Cable Engineers Association,Inc.(ICEA),P.O.Box 1568,Carrollton,GA 30112,http:/.*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.referee method.The extractables,after a drying time of 20 h,shall be no more than 30%.5.Electrical Requirements5.1 Subject cable specimens to a 5 min ac or dc voltagewithstand test at voltages which are based on the nominalthickness of the insulation.Conduct tests in accordance withTest Methods D470 using 5000 V/mil(125 V/mil)for ac testsor 15 000 V/mm(375 V/mil)for dc tests.6.Sampling6.1 Sample the insulation in accordance with Test MethodsD470,D2765,and ICEA T-28-562.7.Tes