ASTM B228-11a

Standard Specification for Concentric-Lay-Stranded Copper-Clad Steel Conductors

ABSTRACT
This specification covers bare concentric-lay-stranded conductors made from bare round copper-clad steel wires for general use for electrical purposes. Conductors are classified as follows: Grade 40 HS, Grade 30 HS, and Grade 30 EHS. The numbers and diameters of the wires in the concentric-lay-stranded conductors shall conform to the requirements prescribed. Tests for physical and electrical properties of wires composing concentric-lay-stranded conductors made from copper-clad steel wire shall be made before stranding.
SCOPE
1.1 This specification covers bare concentric-lay-stranded conductors made from bare round copper-clad steel wires for general use for electrical purposes.
1.2 For the purpose of this specification, conductors are classified as follows: Grade 40 HS, Grade 30 HS, and Grade 30 EHS.
1.3 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.
1.4 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 and health practices and determine the applicability of regulatory limitations prior to use.

General Information

• Status: Historical
• Publication Date: 14-Nov-2011
• ICS: 29.060.20 - Cables
• Technical Committee: B01 - Electrical Conductors
• Drafting Committee: B01.06 - Bi-Metallic Conductors

Relations

• Replaces: ASTM B228-11 - Standard Specification for Concentric-Lay-Stranded Copper-Clad Steel Conductors
• Effective Date: 15-Nov-2011

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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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: B228 −11a
StandardSpecification for
1
Concentric-Lay-Stranded Copper-Clad Steel Conductors
This standard is issued under the fixed designation B228; 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 E29 Practice for Using Significant Digits in Test Data to
Determine Conformance with Specifications
1.1 This specification covers bare concentric-lay-stranded
B910/B910M Specification for Annealed Copper-Clad Steel
conductors made from bare round copper-clad steel wires for
Wire
general use for electrical purposes.
2.3 ANSI Standards:
1.2 For the purpose of this specification, conductors are 3
C42 Definitions of Electrical Terms
classified as follows: Grade 40 HS, Grade 30 HS, Grade 30
2.4 National Institute of Standards and Technology:
EHS, Grade 40 DSA, and Grade 30 DSA.
4
NBSHandbook 100—Copper Wire Tables
The grades covered by this specification correspond to the
following commercial designations:
3. Ordering Information
Grade 40 HS, High Strength, 40% Conductivity, Hard Drawn
3.1 Orders for material under this specification shall include
Grade 30 HS, High Strength, 30% Conductivity, Hard Drawn
the following information:
Grade 30 EHS, Extra High Strength, 30% Conductivity, Hard Drawn
Grade 40 DSA, 40% Conductivity, Dead Soft Annealed
3.1.1 Quantity of each size and grade;
Grade 30 DSA, 30% Conductivity, Dead Soft Annealed
3.1.2 Conductor size: approximate diameter in fractions of
1.3 The values stated in inch-pound units are to be regarded
an inch, or number andAWG size of individual wires (Section
as standard. The values given in parentheses are mathematical
7 and Table 1);
conversions to SI units that are provided for information only
3.1.3 Grade (see 1.2 and Table 1);
and are not considered standard.
3.1.4 Direction of lay of outer layer, if other than left-hand
1.4 This standard does not purport to address all of the (see 6.3);
3.1.5 When physical tests shall be made (see 8.2);
safety concerns, if any, associated with its use. It is the
responsibility of the user of this standard to establish appro- 3.1.6 Package size (see 13.1);
3.1.7 Special package marking, if required (Section 12);
priate safety and health practices and determine the applica-
bility of regulatory limitations prior to use. 3.1.8 Lagging, if required (see 13.2); and
3.1.9 Place of inspection (Section 14).
2. Referenced Documents
3.2 In addition, Supplementary Requirements shall apply
2.1 The following documents of the issue in effect on the onlywhenspecifiedbythepurchaserintheinquiry,contract,or
dateofmaterialpurchaseformapartofthisspecificationtothe purchase order for direct procurement by agencies of the U. S.
extent referenced herein:
Government (S1, S2, and S3).
2
2.2 ASTM Standards:
4. Material for Wires
B227 Specification for Hard-Drawn Copper-Clad Steel Wire
4.1 The purchaser shall specify the grade of wire to be used
B354 Terminology Relating to Uninsulated Metallic Electri-
in the conductor.
cal Conductors
4.2 Before stranding, the copper-clad steel wire shall meet
all the requirements of Specification B227 for Grade 40 HS,
1
This specification is under the jurisdiction of ASTM Committee B01 on
Grade 30 HS and Grade 30 EHS and the requirements of
Electrical Conductors and is the direct responsibility of Subcommittee B01.06 on
Specification B910/B910M for Grade 40 DSA and Grade 30
Bi-Metallic Conductors.
DSA.
Current edition approved Nov. 15, 2011. Published December 2011. Originally
approved in 1948. Last previous edition approved in 2011 as B228 – 11. DOI:
10.1520/B0228-11A.
2 3
For referenced ASTM standards, visit the ASTM website, www.astm.org, or Available from American National Standards Institute (ANSI), 25 W. 43rd St.,
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM 4th Floor, New York, NY 10036, http://www.ansi.org.
4
Standards volume information, refer to the standard’s Document Summary page on Available from National Institute of Standards and Technology (NIST), 100
the ASTM website. 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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B228 − 11a
TABLE 1 Construction Requirements and Breaking Strength of Concentric-Lay-Stranded Copper-Clad Steel Conductors
NOTE 1—Metric Equivalents—For diameter, 1 in. = 25.40 mm (round to four significant figures); for breaking strength, 1 lb = 0.45359 kg (round to
fou
...

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:B228–11 Designation: B228 – 11a
Standard Specification for
1
Concentric-Lay-Stranded Copper-Clad Steel Conductors
This standard is issued under the fixed designation B228; 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 Department of Defense.
1. Scope
1.1 This specification covers bare concentric-lay-stranded conductors made from bare round copper-clad steel wires for general
use for electrical purposes.
1.2 For the purpose of this specification, conductors are classified as follows: Grade 40 HS, Grade 30 HS, and Grade 30 EHS.
For the purpose of this specification, conductors are classified as follows: Grade 40 HS, Grade 30 HS, Grade 30 EHS, Grade 40
DSA, and Grade 30 DSA.
The grades covered by this specification correspond to the following commercial designations:
Grade 40 HS, High Strength, 40% Conductivity, Hard Drawn
Grade 30 HS, High Strength, 30% Conductivity, Hard Drawn
Grade 30 EHS, Extra High Strength, 30% Conductivity, Hard Drawn
Grade 40 DSA, 40% Conductivity, Dead Soft Annealed
Grade 30 DSA, 30% Conductivity, Dead Soft Annealed
1.3 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.
1.4 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 and health practices and determine the applicability of regulatory
limitations prior to use.
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:
B227 Specification for Hard-Drawn Copper-Clad Steel Wire
B354 Terminology Relating to Uninsulated Metallic Electrical Conductors Terminology Relating to Uninsulated Metallic
Electrical Conductors
E29 Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications
B910/B910M Specification for Annealed Copper-Clad Steel Wire
2.3 ANSI Standards: C42Definitions of Electrical Terms
1
This specification is under the jurisdiction of ASTM Committee B01 on Electrical Conductors and is the direct responsibility of Subcommittee B01.06 on Composite
Conductors.
Current edition approved April 1,Nov. 15, 2011. Published MayDecember 2011. Originally approved in 1948. Last previous edition approved in 20042011as
B228–04.B228 – 11. DOI: 10.1520/B0228-11A.
2
For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM 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 ----------------------
B228 – 11a
3
C 42 Definitions of Electrical Terms
2.4 National Institute of Standards and Technology:
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 grade;
3.1.2 Conductor size: approximate diameter in fractions of an inch, or number andAWG size of individual wires (Section 7 and
Table 1);
3.1.3 Grade (see 1.2 and Table 1);
3.1.4 Direction of lay of outer layer, if other than left-hand (see 6.3);
3.1.5 When physical tests shall be made (see 8.2);
3.1.6 Package size (see 13.1);
3.1.7 Special package marking, if required (Section 12);
3.1.8 Lagging, if required (see 13.2); and
3.1.9 Place of inspection (Section 14).
3.2 In addition, Supplementary Requirements shall apply only when specified by the purchaser in the inquiry, contract, or
purchase order for direct procurement by agencies of the U. S. Government (S1, S2, and S3).
4. Material for Wires
4.1 The purchaser shall specify the grade of wire to be used in the conductor.
4.2 Before stranding, the copper-clad steel wire shall meet all the requirements of Specification B227 . for Grade 40 HS, Grade
30 HS and Grade 30 EHS and the requirements of Specification B910/B910M for Grade 40 DSA and
...