1、Designation:D290200(Reapproved 2013)1An American National StandardStandard Specification forFluoropolymer Resin Heat-Shrinkable Tubing for ElectricalInsulation1This standard is issued under the fixed designation D2902;the number immediately following the designation indicates the year oforiginal ado
2、ption 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.1NOTELanguage was changed editorially in January 2013.1.Scope1.1 This specification appli
3、es to flexible heat-shrinkableextruded tubing made from tetrafluoroethylene resin,copoly-mer of tetrafluoroethylene and hexafluoropropylene,and fromperfluoroalkoxy resin for use as electrical insulation.NOTE1This standard is similar but not identical to IEC 606843240to 243.1.2 The values stated in i
4、nch-pound units are to be regardedas the standard except temperature which shall be stated indegrees Celsius.Values in parentheses are for information only.2.Referenced Documents2.1 ASTM Standards:2C618 Specification for Coal Fly Ash and Raw or CalcinedNatural Pozzolan for Use in ConcreteD638 Test M
5、ethod for Tensile Properties of PlasticsD1711 Terminology Relating to Electrical InsulationD2116 Specification for FEP-Fluorocarbon Molding andExtrusion MaterialsD2671 Test Methods for Heat-Shrinkable Tubing for Elec-trical UseD3307 SpecificationforPerfluoroalkoxy(PFA)-Fluorocarbon Resin Molding and
6、 Extrusion MaterialsD3636 Practice for Sampling and Judging Quality of SolidElectrical Insulating MaterialsD4895 Specification for Polytetrafluoroethylene(PTFE)Resin Produced From DispersionE176 Terminology of Fire Standards2.2IEC Standards:606843240 to 243 Flexible insulating sleeving,Part 3,Sheets
7、 240 to 243:Heat-shrinkable PTFE sleeving33.Terminology3.1 Definitions:3.1.1 For definitions pertaining to electrical insulation,referto Terminology D1711.3.1.2 For definitions pertaining to fire standards,refer toTerminology E176.4.Classification4.1 Type ITubing made from tetrafluoroethylene polyme
8、r(TFE)and capable of being heat shrunk at a temperature of 327C 621 F.4.2 Type IITubing made from a copolymer of tetrafluoro-ethylene and hexafluoropropylene(FEP)and capable of beingheat shrunk at a temperature of 150 C 302 F.4.3 Type IIITubing made from perfluoroalkoxy resin(PFA)and capable of bein
9、g heat shrunk at a temperature of 175C 347 F.5.Ordering Information5.1 When ordering to this specification,the purchaser muststate the size,and type of the required tubing.6.Materials and Manufacture6.1 The compound used in the manufacture of this tubingshall be modified fluoropolymer resin,and the
10、finished com-pound shall be free of all foreign matter other than intendedformulation additives as appropriate.6.2 Type I tubing is normally made by paste extrusion.TypeII and Type III tubings are normally made by melt extrusion.All types are expanded by mechanical means.7.Chemical and Physical Prop
11、erty Requirements7.1 The material shall conform to the chemical and physicalproperty requirements specified in Table 1.1This specification is under the jurisdiction of ASTM Committee D09 onElectrical and Electronic Insulating Materials and is the direct responsibility ofSubcommittee D09.07 on Flexib
12、le and Rigid Insulating Materials.Current edition approved January 15,2013.Published February 2013.Originallyapproved in 1970.Last previous edition approved in 2006 as D2902 06.DOI:10.1520/D2902-00R13E01.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Servi
13、ce at serviceastm.org.For Annual Book of ASTMStandards volume information,refer to the standards Document Summary page onthe ASTM website.3Available from American National Standards Institute(ANSI),25 W.43rd St.,4th Floor,New York,NY 10036.Copyright ASTM International,100 Barr Harbor Drive,PO Box C7
14、00,West Conshohocken,PA 19428-2959.United States1 7.2 Every lot of material manufactured should be tested fordimensional requirements and restricted shrinkage.Other re-quirements shall be permitted to be tested less frequently orwith a frequency agreed upon between seller and purchaser.8.Dimensional
15、 Requirements8.1 Type I material shall conform to the requirementsspecified in Table 3.TABLE 3 Dimensions,Type ILengths for Type IAs SuppliedAfter Unrestrictive ShrinkageStock LengthsPackagingInside Diameter,min,in.mmInside Diameter,max,in.mmWall Thickness,in.mmHeavy Wall0.166 4.220.130 3.300.030 0.
16、005 0.76 0.133 ft to 1 ft minstraight lengths0.250 6.350.193 4.900.030 0.005 0.76 0.133 ft to 1 ft minstraight lengths0.333 8.460.257 6.530.030 0.005 0.76 0.133 ft to 1 ft minstraight lengths0.415 10.540.320 8.130.030 0.005 0.76 0.133 ft to 1 ft minstraight lengths0.498 12.650.383 9.730.030 0.005 0.76 0.133 ft to 1 ft minstraight lengths0.580 14.730.448 11.380.030 0.005 0.76 0.133 ft to 1 ft minstraight lengths0.666 16.920.510 12.950.030 0.005 0.76 0.133 ft to 1 ft minstraight lengths0.748 19.00
