ASTM B229-12

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

ABSTRACT
This specification covers concentric-lay-stranded conductors made from uncoated hard-drawn round copper wires in combination with hard-drawn round copper-clad steel wires for general use as overhead electrical conductors. The conductors are classified under the following type designations: Type A, Type C, Type D, Type E, Type EK, Type F, Type G, Type J, Type K, Type N, Type P, and Type V. Welds and brazes may be made in copper rods or in copper wires prior to final drawing. Joints may not be made in the finished copper wires composing concentric-lay-stranded composite conductors containing a total of seven wires or less. In other conductors, welds and brazes may be made in the finished individual copper wires composing the conductor. Also, the joints or splices may be made in the finished individual copper-clad steel wires composing concentric-lay-stranded conductors, provided that such joints or splices have a protection equivalent to that of the wire itself and that they do not decrease the strength of the finished stranded conductor below the minimum breaking strength. The density, mass, and resistance of the wires shall be determined.
SCOPE
1.1 This specification covers concentric-lay-stranded conductors made from uncoated hard-drawn round copper wires in combination with hard-drawn round copper-clad steel wires for general use as overhead electrical conductors.
1.2 For the purpose of this specification, conductors are classified under the following type designations (see Fig. 1):
  Type AType G  Type CType J  Type DType K  Type EType N  Type EKType P  Type FType V
1.3 The SI values for density are regarded as the standard. For all other properties the inch-pound values are to be regarded as standard and the SI units may be approximate.
FIG. 1 Standard Types of Composite Conductors

General Information

• Status: Historical
• Publication Date: 31-Mar-2012
• ICS: 29.060.20 - Cables
• Technical Committee: B01 - Electrical Conductors
• Drafting Committee: B01.06 - Bi-Metallic Conductors

Relations

• Replaces: ASTM B229-04 - Standard Specification for Concentric-Lay-Stranded Copper and Copper-Clad Steel Composite Conductors
• Effective Date: 01-Apr-2012
• Replaced By: ASTM B229-12(2017) - Standard Specification for Concentric-Lay-Stranded Copper and Copper-Clad Steel Composite Conductors
• Effective Date: 01-Apr-2017

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:B229 −12
Standard Specification for
Concentric-Lay-Stranded Copper and Copper-Clad Steel
1
Composite Conductors
This standard is issued under the fixed designation B229; 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 3. Ordering Information
1.1 This specification covers concentric-lay-stranded con- 3.1 Orders for material under this specification shall include
ductors made from uncoated hard-drawn round copper wires in the following information:
combinationwithhard-drawnroundcopper-cladsteelwiresfor 3.1.1 Quantity of each size and type;
general use as overhead electrical conductors. 3.1.2 Conductor size: hard-drawn copper equivalent in
circular-mil area or AWG (Section 7 and Table 1);
1.2 For the purpose of this specification, conductors are
3.1.3 Type (see 1.2, Fig. 1, and Table 1);
classified under the following type designations (see Fig. 1):
3.1.4 Direction of lay of outer layer, if other than left-hand
Type A Type G
(see 6.3);
Type C Type J
Type D Type K 3.1.5 When physical tests shall be made (see section 8.2);
Type E Type N
3.1.6 Package size (see 14.1);
Type EK Type P
3.1.7 Special package marking, if required (Section 15);
Type F Type V
3.1.8 Lagging, if required (see 14.2); and
1.3 The SI values for density are regarded as the standard.
3.1.9 Place of inspection (Section 13).
For all other properties the inch-pound values are to be
regarded as standard and the SI units may be approximate.
4. Material for Wires
4.1 The purchaser shall designate the size and type of
2. Referenced Documents
conductor to be furnished. The position of the hard-drawn
2
2.1 ASTM Standards:
copper wires and the copper-clad steel wires in the conductor
B1 Specification for Hard-Drawn Copper Wire
cross section shall be as shown in Fig. 1.
B227 Specification for Hard-Drawn Copper-Clad Steel Wire
4.2 Before stranding, the wire used shall meet the require-
B354 Terminology Relating to Uninsulated Metallic Electri-
ments of Specifications B1 and B227 that are applicable to its
cal Conductors
type.
E29 Practice for Using Significant Digits in Test Data to
Determine Conformance with Specifications
5. Joints
2.2 ANSI Standard:
5.1 Copper—Welds and brazes may be made in copper rods
3
C42 Definitions of Electrical Terms
or in copper wires prior to final drawing. Joints may not be
2.3 National Institute of Standards and Technology: made in the finished copper wires composing concentric-lay-
4
NBSHandbook 100—Copper Wire Tables stranded composite conductors containing a total of seven
wires or less. In other conductors, welds and brazes may be
made in the finished individual copper wires composing the
1
conductor, but shall be not closer than 50 ft (15 m) to any other
This specification is under the jurisdiction of ASTM Committee B01 on
Electrical Conductors and is the direct responsibility of Subcommittee B01.06 on
joint in the same layer in the conductor.
Bi-Metallic Conductors.
5.2 Copper-Clad Steel—Joints or splices may be made in
Current edition approved April 1, 2012. Published May 2012. Originally
approved in 1948. Last previous edition approved in 2004 as B229 – 04. DOI:
the finished individual copper-clad steel wires composing
10.1520/B0229-12.
concentric-lay-stranded conductors, provided that such joints
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
or splices have a protection equivalent to that of the wire itself
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
and that they do not decrease the strength of the finished
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website.
stranded conductor below the minimum breaking strength
3
Available fromAmerican National Standards Institute (ANSI), 25 W. 43rd St.,
showninTable1.Suchjointsorsplicesshallbenotcloserthan
4th Floor, New York, NY 10036, http://www.ansi.org.
4
50 ft (15 m) to any other joint in the same layer in the
Available from National Institute of Standards and Technology (NIST), 100
Bureau Dr., Stop 1070, Gaithersburg, MD 20899-1070, http://www.nist.gov. conductor (Explanatory Note 1).
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

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B229−12
8.2 At the option of the purchaser or his representative,
tension and elongation tests on wires before stranding may be
waived, and the completed conductor may be tested as a unit.
The breaking strength of the conductors so tested shall be not
less than the rated strength values shown in Table 2. T
...

This document is not anASTM standard and is intended only to provide the user of anASTM 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:B229–04 Designation: B229 – 12
Standard Specification for
Concentric-Lay-Stranded Copper and Copper-Clad Steel
1
Composite Conductors
This standard is issued under the fixed designation B229; 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 uncoated hard-drawn round copper wires in
combination with hard-drawn round copper-clad steel wires for general use as overhead electrical conductors.
1.2 For the purpose of this specification, conductors are classified under the following type designations (see Fig. 1):
Type A Type G
Type C Type J
Type D Type K
Type E Type N
Type EK Type P
Type F Type V
1.3 The SI values for density are regarded as the standard. For all other properties the inch-pound values are to be regarded as
standard and the SI units may be approximate.
2. Referenced Documents
2
2.1 ASTM Standards:
B1 Specification for Hard-Drawn Copper Wire
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
2.2 ANSI Standard:
3
C 42 Definitions of Electrical Terms
2.3 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 type;
3.1.2 Conductor size: hard-drawn copper equivalent in circular-mil area or AWG (Section 7 and Table 1);
3.1.3 Type (see 1.2, Fig. 1, 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 section 7.2);
3.1.6 Package size (see 14.1);
3.1.7 Special package marking, if required (Section 15);
3.1.8 Lagging, if required (see 14.2); and
3.1.9 Place of inspection (Section 13).
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 approvedApril 1, 2004.2012. PublishedApril 2004.May 2012. Originally approved in 1948. Last previous edition approved in 20022004 as B229 – 024.
DOI: 10.1520/B0229-04.10.1520/B0229-12.
2
For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at [e-mail]. ForAnnualBookofASTMStandards
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.
4
Available from National Institute of Standards and Technology (NIST), 100 Bureau Dr., Stop 3460, Gaithersburg, MD 20899-3460.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1

---------------------- Page: 1 ----------------------
B229 – 12
FIG. 1 Standard Types of Composite Conductors
TABLE 1 Construction Requirements and Breaking Strength of Concentric-Lay-Stranded Copper and Copper-Clad Steel Composite
Conductors
2
NOTE 1—Metric Equivalents—For conductor size, 1 cmil = 0.0005067 mm (round to four significant figures); for diameter 1 mil = 0.02540 mm
(round to four significant figures); for breaking strength, 1 lb = 0.45359 kg (round to four significant figures).
Conductor Size, Hard-Drawn Copper Hard-Drawn Copper
Grade 30 EHS Copper-Clad Steel Wires
A
Rated Breaking
Equivalent Wires
Type Strength, min,
B
Number of Diameter of Number of Diameter of
lb lb
cmil AWG
Wires Wires, mils Wires Wires, mils
350 000 . . . E 7 157.6 12 157.6 32 420
350 000 . . . EK 4 147.0 15 147.0 23 850
350 000 . . . V 3 175.1 9 189.3 23 480
300 000 . . . E 7 145.9 12 145.9 27 770
300 000 . . . EK 4 136.1 15 136.1 20 960
300 000 . . . V 3 162.1 9 175.2 20 730
250 000 . . . E 7 133.2 12 133.2 23 920
250 000 . . . EK 4 124.2 15 124.2 17 840
250 000 . . . V 3 148.0 9 160.0 17 420
211 600 0000 E 7 122.5 12 122.5 20 730
211 600 0000 G 2 194.4 5 194.4 15 640
211 600 0000 EK 4 114.3 15 114.3 15 370
211 600 0000 V 3 136.1 9 147.2 15 000
211 600 0000 F 1 183.3 6 183.3 12 290
167 800 000 E 7 109.1 12 109.1 16 800
167 800 000 J 3
...