1、Designation:B35511(Reapproved 2016)Standard Specification forNickel-Coated Soft or Annealed Copper Wire1This standard is issued under the fixed designation B355;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of last revisio
2、n.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 This specification covers nickel-coated,soft orann
3、ealed,round copper wire for use in electrical equipment.1.2 Five classes of wire are covered as follows:1.2.1 Class 2Wire whose nickel coating is at least 2%ofthe total weight of the coated wire.1.2.2 Class 4Wire whose nickel coating is at least 4%ofthe total weight of the coated wire.1.2.3 Class 7W
4、ire whose nickel coating is at least 7%ofthe total weight of the coated wire.1.2.4 Class 10Wire whose nickel coating is at least 10%of the total weight of the coated wire.1.2.5 Class 27Wire whose nickel coating is at least 27%of the total weight of the coated wire.NOTE1For information purposes,the t
5、hickness of coating in micro-inches provided by the percentages listed in 1.2 is shown in Table 2.1.3 The values stated in inch-pound units are to be regardedas standard.The values given in parenthesis are mathematicalconversions to SI units that are provided for information onlyand are not consider
6、ed standard.1.3.1 ExceptionsThe SI values for density,resistivity,andvolume are to be regarded as standard.1.4 This hazard statement applies only to Section 7,TestMethods,and to the Appendix of this specification.Thisstandard does not purport to address all of the safety concerns,if any,associated w
7、ith its use.It is the responsibility of the userof this standard to establish appropriate safety and healthpractices and determine the applicability of regulatory limita-tions prior to use.3.Referenced Documents3.1 The following documents of the issue in effect at thetime of reference form a part of
8、 these methods to the extentreferenced herein:3.2 ASTM Standards:2B49 Specification for Copper Rod for Electrical PurposesB193 Test Method for Resistivity of Electrical ConductorMaterialsB258 Specification for Nominal Diameters and Cross-SectionalAreas ofAWG Sizes of Solid Round Wires Usedas Electri
9、cal ConductorsE75 Test Methods for Chemical Analysis of Copper-Nickeland Copper-Nickel-Zinc Alloys(Withdrawn 2010)33.3 NIST:NBS Handbook 100Copper Wire Tables44.Ordering Information4.1 Orders for material under this specification shall includethe following information:4.1.1 Quantity of each size,4.1
10、.2 Wire size,diameter in inches(see 6.3 and Table 2),4.1.3 Class of coating(Section 1 and Table 2),4.1.4 Type of copper,if special(see 5.2),4.1.5 Package size(Section 11),4.1.6 Special packaging marking,if required,and4.1.7 Place of inspection(see 10.1).5.Material5.1 The material shall be nickel-coa
11、ted wire(ExplanatoryNote 1),of such quality and purity that the finished productshall have the properties and characteristics prescribed in thisspecification.NOTE2Specification B49 defines copper suitable for use:5.2 Copper of special qualities,forms,or types,as may beagreed upon between the manufac
12、turer and the purchaser,andwhich will conform to the requirements prescribed in thisspecification may also be used.1This specification is under the jurisdiction of ASTM Committee B01 onElectrical Conductors and is the direct responsibility of B01.04 on Conductors ofCopper and Copper Alloys.Current e
13、dition approved Oct.1,2016.Published October 2016.Originallyapproved in 1960.Last previous edition approved in 20116 as B355 11.DOI:10.1520/B0355-11R16.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.For Annual Book of ASTMStandar
14、ds 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.4Available from National Technical Information Service(NTIS),5301 ShawneeRd.,Alexandria,VA 22312,http:/www.ntis.gov.Copyright ASTM
15、 International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 6.General Requirements6.1 Tensile PropertiesThe nickel-coated wire shall con-form to the requirements for elongation as prescribed in Table2.For wire,the nominal diameter of which is more than 0.001in.(0.
16、025 mm)greater than a size listed in Table 2 and less thanthat of the next larger size,the requirements of the next largersize shall apply.6.2 ResistivityThe electrical resistivity of the coated wireat a temperature of 20C shall not exceed the values prescribedin Table 2.6.3 Dimensions and Permissible VariationsThe wire sizesshall be expressed as the diameter of the wire in decimalfractions of an inch to the nearest 0.0001 in.(0.0025 mm)(Explanatory Note 2).The coated wire shall not vary from th
