ASTM B228-11

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: 31-Mar-2011
• ICS: 29.060.20 - Cables
• Technical Committee: B01 - Electrical Conductors
• Drafting Committee: B01.06 - Bi-Metallic Conductors

Relations

• Replaces: ASTM B228-04 - Standard Specification for Concentric-Lay-Stranded Copper-Clad Steel Conductors
• Effective Date: 01-Apr-2011
• Replaced By: ASTM B228-11a - 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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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 – 11
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 2.4 National Institute of Standards and Technology:
4
NBS Handbook 100—Copper Wire Tables
1.1 This specification covers bare concentric-lay-stranded
conductors made from bare round copper-clad steel wires for
3. Ordering Information
general use for electrical purposes.
3.1 Orders for material under this specification shall include
1.2 For the purpose of this specification, conductors are
the following information:
classifiedasfollows:Grade40HS,Grade30HS,andGrade30
3.1.1 Quantity of each size and grade;
EHS.
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);
safety concerns, if any, associated with its use. It is the
3.1.5 When physical tests shall be made (see 8.2);
responsibility of the user of this standard to establish appro-
3.1.6 Package size (see 13.1);
priate safety and health practices and determine the applica-
3.1.7 Special package marking, if required (Section 12);
bility of regulatory limitations prior to use.
3.1.8 Lagging, if required (see 13.2); and
2. Referenced Documents 3.1.9 Place of inspection (Section 14).
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:
2 Government (S1, S2, and S3).
2.2 ASTM Standards:
B227 Specification for Hard-Drawn Copper-Clad Steel
4. Material for Wires
Wire
4.1 The purchaser shall specify the grade of wire to be used
B354 Terminology Relating to Uninsulated Metallic Elec-
in the conductor.
trical Conductors
4.2 Before stranding, the copper-clad steel wire shall meet
2.3 ANSI Standards:
3 all the requirements of Specification B227.
C42 Definitions of Electrical Terms
4.3 Allwiresintheconductorshallbeofthesamegradeand
quality.
1
5. Joints
This specification is under the jurisdiction of ASTM Committee B01 on
Electrical Conductors and is the direct responsibility of Subcommittee B01.06 on
5.1 Joints or splices may be made in the finished individual
Composite Conductors.
copper-clad steel wires composing concentric-lay-stranded
Current edition approved April 1, 2011. Published May 2011. Originally
approved in 1948. Last previous edition approved in 2004 as B228 – 04. DOI: conductors, using more than three wires provided that such
10.1520/B0228-11.
joints or splices have a protection equivalent to that of the wire
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
itself and that they do not decrease the strength of the finished
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.
3 4
Available fromAmerican National Standards Institute (ANSI), 25 W. 43rd St., Available from National Institute of Standards and Technology (NIST), 100
4th Floor, New York, NY 10036, http://www.ansi.org. 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

---------------------- Page: 1 ----------------------
B228 – 11
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
four significant figures).
B
Size Designation Rated Breaking Strength, min, lb
A
Conductor Diameter, in.
C D
Inch AWG Grade 40 HS Grade 30 HS Grade 30 EHS
7
⁄8 19 No. 5 0.910 48 740 53 910 64 910
13
⁄16 19 No. 6 0.810 40 370 44 470 53 880
23
⁄32 19 No. 7 0.721 33 360 36 610 44 480
21
⁄32 19 No. 8 0.642 27 550 30 140 36 590
9
⁄16 19 No
...

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:B228–04 Designation: B228 – 11
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.
1.3The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are in SI units.
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
2.3 ANSI Standards:
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).
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, 2004.2011. Published April 2004.May 2011. Originally approved in 1948. Last previous edition approved in 20022004 as B228 – 024.
DOI: 10.1520/B0228-04.10.1520/B0228-11.
2
For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at [e-mail]. For Annual Book ofASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
3
Available from American National Standards Institute (ANSI), 25 W. 43rd St., 4th Floor, New York, NY 10036, http://www.ansi.org.
4
Available from National Institute of Standards and Technology (NIST), 100 Bureau Dr., Stop 3460,1070, Gaithersburg, MD 20899-3460.20899-1070, http://
www.nist.gov.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1

---------------------- Page: 1 ----------------------
B228 – 11
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
four significant figures).
B
Size Designation Rated Breaking Strength, min, lb
A
Conductor Diameter, in.
C D
Inch AWG Grade 40 HS Grade 30 HS Grade 30 EHS
7
⁄8 19 No. 5 0.910 50 240 55 570 66 910
7
⁄8 19 No. 5 0.910 48 740 53 910 64 910
13
⁄16 19 No. 6 0.810 41 600 45 830 55 530
13
⁄16 19 No. 6 0.810 40 370 44 470 53 880
23
⁄32 19 No. 7 0.721 34 390 37 740 45 850
23
⁄32 19 No. 7 0.721 33 360 36 610 44 480
21
⁄32
...