ASTM B524/B524M-23

Standard Specification for Concentric-Lay-Stranded Aluminum Conductors, Aluminum-Alloy Reinforced (ACAR, 1350/6201)

ABSTRACT
This specification covers concentric-lay-stranded conductors made from round aluminum 1350-H19 (extra hard) wires and round aluminum-alloy 6201-T81 (hard, solution heat treated, cold worked, and then artificially aged) core wires for use as overhead electrical conductors. Conductors shall conform to construction requirements in terms of mass, mass per unit length, recommended reel sizes, and shipping lengths. Wires shall also be tested to evaluate their conformance to physical, mechanical, and electrical properties such as density, cross sectional area, breaking strength, and mass electrical resistance.
SCOPE
1.1 This specification covers concentric-lay-stranded conductors made from round aluminum 1350-H19 (extra hard) wires and round aluminum-alloy 6201-T81 (hard: solution heat treated, cold worked, and then artificially aged) core wires for use as overhead electrical conductors (Explanatory Note 1).
Note 1: The aluminum, alloy, and temper designations conform to ANSI H35.1/ANSI H35.1[M]. Aluminum 1350 and Alloy 6201 correspond to unified numbering system A91350 and A96201, respectively, in accordance with Practice E527.  
1.2 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.  
1.2.1 For density, resistivity and temperature, the values stated in SI units are to be regarded as standard.  
1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
1.4 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.

General Information

• Status: Published
• Publication Date: 31-Mar-2023
• ICS: 29.240.20 - Power transmission and distribution lines
• Technical Committee: B01 - Electrical Conductors
• Drafting Committee: B01.07 - Conductors of Light Metals

Standards Content (Sample)

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.
Designation: B524/B524M − 23
Standard Specification for
Concentric-Lay-Stranded Aluminum Conductors, Aluminum-
1
Alloy Reinforced (ACAR, 1350/6201)
This standard is issued under the fixed designation B524/B524M; 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.
2
1. Scope 2.2 ASTM Standards:
B193 Test Method for Resistivity of Electrical Conductor
1.1 This specification covers concentric-lay-stranded con-
Materials
ductors made from round aluminum 1350-H19 (extra hard)
B230/B230M Specification for Aluminum 1350–H19 Wire
wires and round aluminum-alloy 6201-T81 (hard: solution heat
for Electrical Purposes
treated, cold worked, and then artificially aged) core wires for
B263/B263M Test Method for Determination of Cross-
use as overhead electrical conductors (Explanatory Note 1).
Sectional Area of Stranded Conductors
B354 Terminology Relating to Uninsulated Metallic Electri-
NOTE 1—The aluminum, alloy, and temper designations conform to
cal Conductors
ANSI H35.1/ANSI H35.1[M]. Aluminum 1350 and Alloy 6201 corre-
B398/B398M Specification for Aluminum-Alloy 6201-T81
spond to unified numbering system A91350 and A96201, respectively, in
accordance with Practice E527. and 6201-T83 Wire for Electrical Purposes
B682 Specification for Standard Metric Sizes of Electrical
1.2 The values stated in inch-pound units are to be regarded
Conductors
as standard. The values given in parentheses are mathematical
E29 Practice for Using Significant Digits in Test Data to
conversions to SI units that are provided for information only
Determine Conformance with Specifications
and are not considered standard.
E527 Practice for Numbering Metals and Alloys in the
1.2.1 For density, resistivity and temperature, the values
Unified Numbering System (UNS)
stated in SI units are to be regarded as standard.
2.3 ANSI Standard:
ANSI H35.1 American National Standard for Alloy and
1.3 This standard does not purport to address all of the
3
Temper Designation Systems for Aluminum
safety concerns, if any, associated with its use. It is the
ANSI H35.1[M] American National Standard for Alloy and
responsibility of the user of this standard to establish appro-
3
Temper Designation Systems for Aluminum
priate safety, health, and environmental practices and deter-
2.4 NIST Document:
mine the applicability of regulatory limitations prior to use.
4
NBS Handbook 100 —Copper Wire Tables
1.4 This international standard was developed in accor-
dance with internationally recognized principles on standard- 3. Ordering Information
ization established in the Decision on Principles for the
3.1 Orders for material under this specification shall include
Development of International Standards, Guides and Recom-
the following information:
mendations issued by the World Trade Organization Technical
3.1.1 Quantity of each size and stranding;
Barriers to Trade (TBT) Committee.
3.1.2 Conductor size (see 7.1);
3.1.3 Total number of wires, aluminum 1350 and aluminum
2. Referenced Documents
alloy 6201 (Table 1 or Table 2);
3.1.4 Direction of lay of outer layer of wires if other than
2.1 The following documents of the issue in effect on date
right-hand (see 6.3);
of material purchase form a part of this specification to the
3.1.5 Special tension test, if required (see 8.2);
extent referenced herein:
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
1
This specification is under the jurisdiction of ASTM Committee B01 on Standards volume information, refer to the standard’s Document Summary page on
Electrical Conductors and is the direct responsibility of Subcommittee B01.07 on the ASTM website.
3
Conductors of Light Metals. Available from American National Standards Institute (ANSI), 25 W. 43rd St.,
Current edition approved April 1, 2023. Published April 2023. Originally 4th Floor, New York, NY 10036, http://www.ansi.org.
4
approved in 1970. Last previous edition approved in 2018 as B0524/B524M – 18. Available from National Institute of Standards and Technology (NIST), 100
DOI: 10.1520/B0524_B0524M-23. Bureau Dr., Stop 1070, Gaithersburg, MD 20899-1070, http://www.nist.gov.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

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B524/B524M − 23
TABLE 1 Construction Requirements of Concentric-Lay-Stranded Aluminum Co
...

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: B524/B524M − 18 B524/B524M − 23
Standard Specification for
Concentric-Lay-Stranded Aluminum Conductors, Aluminum-
1
Alloy Reinforced (ACAR, 1350/6201)
This standard is issued under the fixed designation B524/B524M; 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.
1. Scope
1.1 This specification covers concentric-lay-stranded conductors made from round aluminum 1350-H19 (extra hard) wires and
round aluminum-alloy 6201-T81 (hard: solution heat treated, cold worked, and then artificially aged) core wires for use as
overhead electrical conductors (Explanatory Note 1).
NOTE 1—The aluminum, alloy, and temper designations conform to ANSI H35.1/ANSI H35.1[M]. Aluminum 1350 and Alloy 6201 correspond to unified
numbering system A91350 and A96201, respectively, in accordance with Practice E527.
1.2 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical
conversions to SI units that are provided for information only and are not considered standard.
1.2.1 For density, resistivity and temperature, the values stated in SI units are to be regarded as standard.
1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility
of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of
regulatory limitations prior to use.
1.4 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.
2. Referenced Documents
2.1 The following documents of the issue in effect on date of material purchase form a part of this specification to the extent
referenced herein:
2
2.2 ASTM Standards:
B193 Test Method for Resistivity of Electrical Conductor Materials
B230/B230M Specification for Aluminum 1350–H19 Wire for Electrical Purposes
B263B263/B263M Test Method for Determination of Cross-Sectional Area of Stranded Conductors
B354 Terminology Relating to Uninsulated Metallic Electrical Conductors
B398/B398M Specification for Aluminum-Alloy 6201-T81 and 6201-T83 Wire for Electrical Purposes
1
This specification is under the jurisdiction of ASTM Committee B01 on Electrical Conductors and is the direct responsibility of Subcommittee B01.07 on Conductors
of Light Metals.
Current edition approved March 1, 2018April 1, 2023. Published March 2018April 2023. Originally approved in 1970. Last previous edition approved in 20152018 as
B0524/B524M – 99B0524/B524M – 18. (2015). DOI: 10.1520/B0524_B0524M-18.10.1520/B0524_B0524M-23.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
B524/B524M − 23
B682 Specification for Standard Metric Sizes of Electrical Conductors
E29 Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications
E527 Practice for Numbering Metals and Alloys in the Unified Numbering System (UNS)
2.3 ANSI Standard:
3
ANSI H35.1 American National Standard for Alloy and Temper Designation Systems for Aluminum
3
ANSI H35.1[M] American National Standard for Alloy and Temper Designation Systems for Aluminum
2.4 NIST Document:
4
NBS Handbook 100 —Copper Wire Tables
3. Ordering Information
3.1 Orders for material under this specification shall include the following information:
3.1.1 Quantity of each size and stranding;
3.1.2 Conductor size (see 7.1);
3.1.3 Total number of wires, aluminum 1350 and aluminum alloy 6201 (Table 1 or Table 2);
3.1.4 Direction of lay of outer layer of wires if other than right-hand (see 6.26.3);
3.1.5 Special tension test, if required (see 8.2);
3.1.6 Place of inspection (see 14.114.2);
3.1.7 Package size and type (see 16.1);
3.1.8 Heavy wood lagging, if required (Section 16); and
3.1.9 Speci
...