ASTM B911/B911M-22

Standard Specification for ACSR Twisted Pair Conductor (ACSR/TP)

ABSTRACT
This specification covers ACSR twisted pair conductor for use as overhead electric conductors. The conductors shall conform to the required values of equivalent size AWG, outer dimensions, nominal mass, rated strength, resistance and shall conform to the required component composition of aluminum and steel. . Tests for the electrical and mechanical properties shall be made on the component conductors.
SCOPE
1.1 This specification covers ACSR Twisted Pair Conductor (ACSR/TP) for use as overhead electric conductors (see Notes 1 and 2).
Note 1: The conductor is fabricated from two component ACSR conductors of the same size twisted helically around each other. This conductor is identified by the code name of the component ACSR conductor followed by /TP or the size and type of the component ACSR conductor followed by /TP.
Note 2: There are registered trademark symbols that are also used to identify the twisted pair notation. Consult cable manufacturers for additional details.  
1.2 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard.  
1.2.1 For conductor sizes designated 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. 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-May-2022
• ICS: 33.120.20 - Wires and symmetrical cables
• 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: B911/B911M −22
Standard Specification for
1
ACSR Twisted Pair Conductor (ACSR/TP)
This standard is issued under the fixed designation B911/B911M; the number immediately following the designation indicates the year
of original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.
A superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope 2. Referenced Documents
2.1 The following documents of the issue in effect on the
1.1 This specification coversACSRTwisted Pair Conductor
dateofmaterialpurchaseformapartofthisspecificationtothe
(ACSR/TP) for use as overhead electric conductors (see Notes
extent referenced herein:
1 and 2).
2
2.2 ASTM Standards:
NOTE 1—The conductor is fabricated from two component ACSR
B232/B232M Specification for Concentric-Lay-Stranded
conductors of the same size twisted helically around each other. This
conductor is identified by the code name of the component ACSR Aluminum Conductors, Coated-Steel Reinforced (ACSR)
conductor followed by /TP or the size and type of the component ACSR
conductor followed by /TP.
3. Terminology
NOTE 2—There are registered trademark symbols that are also used to
3.1 Definitions of Terms Specific to This Standard:
identify the twisted pair notation. Consult cable manufacturers for
3.1.1 component conductors—thetwoconductorstwistedto
additional details.
fabricate the finished ACSR/TP.
1.2 The values stated in either SI units or inch-pound units
are to be regarded separately as standard. The values stated in
4. Ordering Information
each system may not be exact equivalents; therefore, each
4.1 Ordersformaterialunderthisspecificationshallinclude
system shall be used independently of the other. Combining
the following information:
values from the two systems may result in non-conformance
4.1.1 Quantity of each size,
with the standard.
4.1.1.1 Conductor Size—kcmil area of the fabricated
1.2.1 For conductor sizes designated byAWG or kcmil, the
ACSR/TP (2 × kcmil area of one of the component
requirementsinSIunitshavebeennumericallyconvertedfrom
conductors),
correspondingvaluesstatedorderivedininch-poundunits.For
4.1.2 Conductor type and the number of wires of the
conductor sizes designated by SI units only, the requirements
component conductors,
are stated or derived in SI units. For density, resistivity, and
4.1.3 The type of steel core wire and type of coating,
temperature, the values stated in SI units are to be regarded as
4.1.4 Place of inspection,
standard.
4.1.5 Package size and type,
1.3 This standard does not purport to address all of the 4.1.6 Special package markings, if required, and
4.1.7 Heavy wood lagging, if required.
safety concerns, if any, associated with its use. It is the
responsibility of the user of this standard to establish appro-
5. Requirements for Component Conductors
priate safety, health, and environmental practices and deter-
mine the applicability of regulatory limitations prior to use.
5.1 Before twisting, the component conductors shall con-
form to the requirements of Specification B232/B232M.
1.4 This international standard was developed in accor-
dance with internationally recognized principles on standard-
6. Twist
ization established in the Decision on Principles for the
Development of International Standards, Guides and Recom-
6.1 The component conductors shall be twisted about them-
mendations issued by the World Trade Organization Technical selveswithacompletetwistevery9ft 61ft.Thistwistlength
Barriers to Trade (TBT) Committee.
shall be measured between the twisting machine and the
take-up reel with normal take-up tension on the ACSR/TP.
NOTE 3—The twist length can be altered as theACSR/TP is wound up
1
This specification is under the jurisdiction of ASTM Committee B01 on
Electrical Conductors and is the direct responsibility of Subcommittee B01.07 on
2
Conductors of Light Metals. For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Current edition approved June 1, 2022. Published June 2022. Originally contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
approved in 2000. Last previous edition approved in 2016 as B911/B911M–12 Standards volume information, refer to the standard’s Document Summary page on
(2016). DOI: 10.1520/B0911_B0911M-22. the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
B911/B911M − 22
onto the take-up reel. It may not have the same twist length as when the
twisting process a mark (using felt tip
...

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: B911/B911M − 12 (Reapproved 2016) B911/B911M − 22
Standard Specification for
1
ACSR Twisted Pair Conductor (ACSR/TP)
This standard is issued under the fixed designation B911/B911M; 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 ACSR Twisted Pair Conductor (ACSR/TP) for use as overhead electric conductors (see Notes 1 and
2).
NOTE 1—The conductor is fabricated from two component ACSR conductors of the same size twisted helically around each other. This conductor is
identified by the code name of the component ACSR conductor followed by /TP or the size and type of the component ACSR conductor followed by
/TP.
NOTE 2—There are registered trademark symbols that are also used to identify the twisted pair notation. Consult cable manufacturers for additional details.
1.2 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each
system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the
two systems may result in non-conformance with the standard.
1.2.1 For conductor sizes designated 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. 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 safety, health, and healthenvironmental 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 the date of material purchase form a part of this specification to the extent
referenced herein:
2
2.2 ASTM Standards:
B232/B232M Specification for Concentric-Lay-Stranded Aluminum Conductors, Coated-Steel Reinforced (ACSR)
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 Oct. 1, 2016June 1, 2022. Published October 2016June 2022. Originally approved in 2000. Last previous edition approved in 20122016 as
B911/B911MB911/B911M – 12 (2016). –12. DOI: 10.1520/B0911_B0911M-12R16.10.1520/B0911_B0911M-22.
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 ----------------------
B911/B911M − 22
3. Terminology
3.1 Definitions of Terms Specific to This Standard:
3.1.1 component conductors—the two conductors twisted to fabricate the finished ACSR/TP.
4. Ordering Information
4.1 Orders for material under this specification shall include the following information:
4.1.1 Quantity of each size,
4.1.1.1 Conductor Size—kcmil area of the fabricated ACSR/TP (2 × kcmil area of one of the component conductors),
4.1.2 Conductor type and the number of wires of the component conductors,
4.1.3 The type of steel core wire and type of coating,
4.1.4 Place of inspection,
4.1.5 Package size and type,
4.1.6 Special package markings, if required, and
4.1.7 Heavy wood lagging, if required.
5. Requirements for Component Conductors
5.1 Before twisting, the component conductors shall conform to the requirements of Specification B232/B232M.
6. Twist
6.1 The component conductors shall be twisted about themselves with a complete twist every 9 ft 6 1 ft. 1 ft. This twist length
...