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ASTM B258-14

(Specification)

Standard Specification for Standard Nominal Diameters and Cross-Sectional Areas of AWG Sizes of Solid Round Wires Used as Electrical Conductors

Standard Specification for Standard Nominal Diameters and Cross-Sectional Areas of AWG Sizes of Solid Round Wires Used as Electrical Conductors

ABSTRACT
This specification prescribes the standard nominal diameters and cross-sectional areas of American Wire Gage (AWG) sizes of solid round wires, used as electrical conductors, and gives equations and rules for the calculation of standard nominal mass and lengths, resistances, and breaking or rated strengths of such wires. All wire dimensions and properties shall be considered as occurring at the internationally standardized reference temperature and all calculations shall be rounded in the final value only.
SCOPE
1.1 This specification prescribes standard nominal diameters and cross-sectional areas of American Wire Gage (AWG) sizes of solid round wires, used as electrical conductors, and gives equations and rules for the calculation of standard nominal mass and lengths, resistances, and breaking strengths of such wires (Explanatory Note 1).  
1.2 The values stated in inch-pound or SI units are to be regarded separately as standard. Each system shall be used independently of the other. Combining values of the two systems may result in nonconformance with the specification. For conductor sizes designated by AWG or kcmil sizes, the requirements in SI units have been numerically converted from the corresponding values stated or derived, in inch-pound units. For conductor sizes designated by SI units only, the requirements are stated or derived in SI units.  
1.2.1 For density, resistivity and temperature, the values stated in SI units are to be regarded as standard.

General Information

Status
Historical
Publication Date
31-Mar-2014
ICS
29.060.10 - Wires
Technical Committee
B01 - Electrical Conductors
Drafting Committee
B01.02 - Methods of Test and Sampling Procedure
Current Stage
Ref Project

Relations

Replaced By
ASTM B258-18 - Standard Specification for Standard Nominal Diameters and Cross-Sectional Areas of AWG Sizes of Solid Round Wires Used as Electrical Conductors
Effective Date
01-Oct-2018

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ASTM B258-14 - Standard Specification for Standard Nominal Diameters and Cross-Sectional Areas of AWG Sizes of Solid Round Wires Used as Electrical ConductorsASTM B258-14 - Standard Specification for Standard Nominal Diameters and Cross-Sectional Areas of AWG Sizes of Solid Round Wires Used as Electrical Conductors
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REDLINE ASTM B258-14 - Standard Specification for Standard Nominal Diameters and Cross-Sectional Areas of AWG Sizes of Solid Round Wires Used as Electrical ConductorsREDLINE ASTM B258-14 - Standard Specification for Standard Nominal Diameters and Cross-Sectional Areas of AWG Sizes of Solid Round Wires Used as Electrical Conductors
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REDLINE ASTM B258-14 - Standard Specification for Standard Nominal Diameters and Cross-Sectional Areas of AWG Sizes of Solid Round Wires Used as Electrical Conductors
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Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation:B258 −14
Standard Specification for
Standard Nominal Diameters and Cross-Sectional Areas of
AWG Sizes of Solid Round Wires Used as Electrical
1
Conductors
This standard is issued under the fixed designation B258; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript 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. Scope A326 Specification for Zinc-Coated (Galvanized) High Ten-
sile Steel Telephone and Telegraph Line Wire (Withdrawn
1.1 This specification prescribes standard nominal diam-
3
1990)
eters and cross-sectional areas ofAmerican Wire Gage (AWG)
B1 Specification for Hard-Drawn Copper Wire
sizes of solid round wires, used as electrical conductors, and
B2 Specification for Medium-Hard-Drawn Copper Wire
gives equations and rules for the calculation of standard
B3 Specification for Soft or Annealed Copper Wire
nominal mass and lengths, resistances, and breaking strengths
B9 Specification for Bronze Trolley Wire
of such wires (Explanatory Note 1).
B33 Specification for Tin-Coated Soft or Annealed Copper
1.2 The values stated in inch-pound or SI units are to be
Wire for Electrical Purposes
regarded separately as standard. Each system shall be used
B47 Specification for Copper Trolley Wire
independently of the other. Combining values of the two
B105 Specification for Hard-Drawn CopperAlloy Wires for
systems may result in nonconformance with the specification.
Electric Conductors
For conductor sizes designated by AWG or kcmil sizes, the
B189 Specification for Lead-Coated and Lead-Alloy-Coated
requirements in SI units have been numerically converted from
Soft Copper Wire for Electrical Purposes
thecorrespondingvaluesstatedorderived,ininch-poundunits.
B193 Test Method for Resistivity of Electrical Conductor
For conductor sizes designated by SI units only, the require-
Materials
ments are stated or derived in SI units.
B227 Specification for Hard-Drawn Copper-Clad Steel Wire
1.2.1 For density, resistivity and temperature, the values
B230/B230M Specification for Aluminum 1350–H19 Wire
stated in SI units are to be regarded as standard.
for Electrical Purposes
1.3 This international standard was developed in accor-
B314 Specification forAluminum 1350 Wire for Communi-
3
dance with internationally recognized principles on standard- cation Cable (Withdrawn 1994)
ization established in the Decision on Principles for the
B396 Specification forAluminum-Alloy 5005-H19 Wire for
3
Development of International Standards, Guides and Recom- Electrical Purposes (Withdrawn 2003)
mendations issued by the World Trade Organization Technical
B398/B398M Specification for Aluminum-Alloy 6201-T81
Barriers to Trade (TBT) Committee. and 6201-T83 Wire for Electrical Purposes
B415 Specification for Hard-Drawn Aluminum-Clad Steel
2. Referenced Documents
Wire
2
B609/B609M Specification for Aluminum 1350 Round
2.1 ASTM Standards:
Wire, Annealed and Intermediate Tempers, for Electrical
A111 Specification for Zinc-Coated (Galvanized) “Iron”
Purposes
Telephone and Telegraph Line Wire
B800 Specification for 8000 Series Aluminum Alloy Wire
for Electrical Purposes—Annealed and Intermediate Tem-
1 pers
This specification is under the jurisdiction of ASTM Committee B01 on
Electrical Conductors and is the direct responsibility of Subcommittee B01.02 on
E29 Practice for Using Significant Digits in Test Data to
Methods of Test and Sampling Procedure.
Determine Conformance with Specifications
Current edition approved April 1, 2014. Published April 2014. Originally
F205 Test Method for Measuring Diameter of Fine Wire by
approved in 1951. Last previous edition approved in 2008 as B258 – 02 (2008).
Weighing
DOI: 10.1520/B0258-14.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
3
Standards volume information, refer to the standard’s Document Summary page on The last approved version of this historical standard is referenced on
the ASTM website. www.astm.org.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
B258−14
3. Standard Reference Temperature 6. Standard Nominal Cross-Sectional Areas
3.1 Forthepurposeofthisspecification,allwiredimensions
6.1 Standard nominal cross-sectional areas in circular mils
and properties shall be considered as occurring at the interna-
and square millimetres shall be calculated in accordance with
tionally standardized reference temperature of 20°C (68°F).
the following equ
...

This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: B258 − 02 (Reapproved 2008) B258 − 14
Standard Specification for
Standard Nominal Diameters and Cross-Sectional Areas of
AWG Sizes of Solid Round Wires Used as Electrical
1
Conductors
This standard is issued under the fixed designation B258; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript 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. Scope
1.1 This specification prescribes standard nominal diameters and cross-sectional areas of American Wire Gage (AWG) sizes of
solid round wires, used as electrical conductors, and gives equations and rules for the calculation of standard nominal mass and
lengths, resistances, and breaking strengths of such wires (Explanatory Note 1).
1.2 The values stated in inch-pound or SI units are to be regarded separately as standard. Each system shall be used
independently of the other. Combining values of the two systems may result in nonconformance with the specification. For
conductor sizes designated by AWG or kcmil sizes, the requirements in SI units have been numerically converted from the
corresponding values stated or derived, in inch-pound units. For conductor sizes designated by SI units only, the requirements are
stated or derived in SI units.
1.2.1 For density, resistivity and temperature, the values stated in SI units are to be regarded as standard.
2. Referenced Documents
2
2.1 ASTM Standards:
A111 Specification for Zinc-Coated (Galvanized) “Iron” Telephone and Telegraph Line Wire
3
A326 Specification for Zinc-Coated (Galvanized) High Tensile Steel Telephone and Telegraph Line Wire (Withdrawn 1990)
B1 Specification for Hard-Drawn Copper Wire
B2 Specification for Medium-Hard-Drawn Copper Wire
B3 Specification for Soft or Annealed Copper Wire
B9 Specification for Bronze Trolley Wire
B33 Specification for Tin-Coated Soft or Annealed Copper Wire for Electrical Purposes
B47 Specification for Copper Trolley Wire
B105 Specification for Hard-Drawn Copper Alloy Wires for Electric Conductors
B189 Specification for Lead-Coated and Lead-Alloy-Coated Soft Copper Wire for Electrical Purposes
B193 Test Method for Resistivity of Electrical Conductor Materials
B227 Specification for Hard-Drawn Copper-Clad Steel Wire
B230/B230M Specification for Aluminum 1350–H19 Wire for Electrical Purposes
3
B314 Specification for Aluminum 1350 Wire for Communication Cable (Withdrawn 1994)
3
B396 Specification for Aluminum-Alloy 5005-H19 Wire for Electrical Purposes (Withdrawn 2003)
B398/B398M Specification for Aluminum-Alloy 6201-T81 and 6201-T83 Wire for Electrical Purposes
B415 Specification for Hard-Drawn Aluminum-Clad Steel Wire
B609/B609M Specification for Aluminum 1350 Round Wire, Annealed and Intermediate Tempers, for Electrical Purposes
B800 Specification for 8000 Series Aluminum Alloy Wire for Electrical Purposes—Annealed and Intermediate Tempers
E29 Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications
1
This specification is under the jurisdiction of ASTM Committee B01 on Electrical Conductors and is the direct responsibility of Subcommittee B01.02 on Methods of
Test and Sampling Procedure.
Current edition approved Sept. 1, 2008April 1, 2014. Published September 2008April 2014. Originally approved in 1951. Last previous edition approved in 20022008 as
B258 – 02.B258 – 02 (2008). DOI: 10.1520/B0258-02R08.10.1520/B0258-14.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
3
The last approved version of this historical standard is referenced on www.astm.org.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
B258 − 14
F205 Test Method for Measuring Diameter of Fine Wire by Weighing
3. Standard Reference Temperature
3.1 For the purpose of this specification, all wire dimensions and properties shall be considered as occurring at the
internationally standardized reference temperature of 20°C (68°F).
4. Standard Rules for Rounding
4.1 All calculations for the standard nominal dimensions and properties of solid round wires shall
...

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SCOPE
1.1 This specification covers round wire concentric-lay-stranded aluminum conductors, steel supported (ACSS) for use as overhead electrical conductors (see Explanatory Note 1).  
1.2 The values stated in inch-pound or SI units are to be regarded separately as standard. Each system shall be used independently of the other. Combining values from the two systems may result in nonconformance with the specification. For conductor sizes designated by AWG or kcmil sizes, the requirements in SI units are numerically converted from the corresponding requirements in inch-pound units. For conductor sizes designation by AWG or kcmil, the requirements in SI units have been numerically converted from corresponding values stated or derived in inch-pound units. For conductor sizes designated by SI units only, the requirements are stated or derived in SI units.  
1.2.1 For density, resistivity and temperature, the values stated in SI units are to be regarded as standard.  
1.3 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

  • Technical specification
    8 pages
    English language
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  • Technical specification
    8 pages
    English language
    sale 15% off