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ASTM B226-95(2003)

(Specification)

Standard Specification for Cored, Annular, Concentric-Lay-Stranded Copper Conductors

Standard Specification for Cored, Annular, Concentric-Lay-Stranded Copper Conductors

SCOPE
1.1 This specification covers cored, annular, concentric-lay-stranded conductors made from round soft copper wires, either uncoated or coated with tin, lead, or lead alloy for use as electrical conductors (Explanatory Note 1 and Note 2).
1.2 The constructions prescribed herein are suitable for bare conductors, or for conductors to be covered with weather-resistant (weather-proof) material, or for conductors to be insulated with rubber, varnished cloth, or impregnated paper, except types such as "oil-filled" or "gas-filled" (Explanatory Note 0).
1.3 Cored, annular conductor constructions not included in this specification shall be specifically agreed upon between the manufacturer and the purchaser when placing the order.
1.4 These constructions are not recommended for use as electric furnace leads where great flexibility is required and special conductor designs are indicated in consideration of the particular service requirements.
1.5 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.

General Information

Status
Historical
Publication Date
30-Sep-2003
ICS
29.060.20 - Cables
Technical Committee
B01 - Electrical Conductors
Drafting Committee
B01.04 - Conductors of Copper and Copper Alloys
Current Stage
Ref Project

Relations

Replaces
ASTM B226-95 - Standard Specification for Cored, Annular, Concentric-Lay-Stranded Copper Conductors
Effective Date
01-Oct-2003
Replaced By
ASTM B226-04 - Standard Specification for Cored, Annular, Concentric-Lay-Stranded Copper Conductors
Effective Date
01-Apr-2004

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ASTM B226-95(2003) - Standard Specification for Cored, Annular, Concentric-Lay-Stranded Copper ConductorsASTM B226-95(2003) - Standard Specification for Cored, Annular, Concentric-Lay-Stranded Copper Conductors
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ASTM B226-95(2003) - Standard Specification for Cored, Annular, Concentric-Lay-Stranded Copper Conductors
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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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: B 226 – 95 (Reapproved 2003)
Standard Specification for
Cored, Annular, Concentric-Lay-Stranded Copper
1
Conductors
This standard is issued under the fixed designation B 226; 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 (e) indicates an editorial change since the last revision or reapproval.
1. Scope ductors Having Bunch-Stranded Members, for Electrical
2
Conductors
1.1 This specification covers cored, annular, concentric-lay-
B 173 Specification for Rope-Lay-Stranded Copper Con-
stranded conductors made from round soft copper wires, either
ductors Having Concentric-Stranded Members, for Elec-
uncoated or coated with tin, lead, or lead alloy for use as
2
trical Conductors
electrical conductors (Explanatory Note 1 and Note 2).
B 174 Specification for Bunch-Stranded Copper Conduc-
1.2 The constructions prescribed herein are suitable for bare
2
tors for Electrical Conductors
conductors, or for conductors to be covered with weather-
B 189 Specification for Lead-Coated and Lead-Alloy-
resistant (weather-proof) material, or for conductors to be
2
Coated Soft Copper Wire for Electrical Purposes
insulated with rubber, varnished cloth, or impregnated paper,
B 263 Test Method for Determination of Cross-Sectional
except types such as “oil-filled” or “gas-filled” (Explanatory
2
Area of Stranded Conductors
Note 3).
B 354 Terminology Relating to Uninsulated Metallic Elec-
1.3 Cored, annular conductor constructions not included in
2
trical Conductors
this specification shall be specifically agreed upon between the
2.2 American National Standard:
manufacturer and the purchaser when placing the order.
3
ANSI C42.35 Definitions of Electrical Terms
1.4 These constructions are not recommended for use as
2.3 NIST:
electric furnace leads where great flexibility is required and
4
NBS Handbook 100—Copper Wire Tables
special conductor designs are indicated in consideration of the
particular service requirements.
3. Ordering Information
1.5 The SI values for density are regarded as the standard.
3.1 Orders for material under this specification shall include
For all other properties the inch-pound values are to be
the following information:
regarded as standard and the SI units may be approximate.
3.1.1 Quantity of each size,
2. Referenced Documents 3.1.2 Conductor size: circular-mil area (Section 7 and Table
1),
The following documents of the issue in effect at the time of
3.1.3 Whether coated or uncoated; if coated, designate type
reference form a part of these methods to the extent referenced
of coating (Section 11),
herein:
3.1.4 Specific kind and treatment of core material (Section
2.1 ASTM Standards:
2 4),
B 3 Specification for Soft or Annealed Copper Wire
3.1.5 Details of special-purpose lays, if required (see 6.1
B 8 Specification for Concentric-Lay-Stranded Copper
2 and 6.2 and Explanatory Note 3),
Conductors, Hard, Medium-Hard, or Soft
3.1.6 Package size (Section 14),
B 33 Specification for Tinned Soft or Annealed Copper
2
3.1.7 Lagging, if required (see 14.2),
Wire for Electrical Purposes
3.1.8 Special package marking, if required (Section 14), and
B 172 Specification for Rope-Lay-Stranded Copper Con-
3.1.9 Place of inspection (Section 13).
1
This specification is under the jurisdiction of ASTM Committee B01 on
3
Electrical Conductors and is the direct responsibility of Subcommittee B01.04 on Available from American National Standards Institute (ANSI), 25 W. 43rd St.,
Conductors of Copper and Copper Alloys. 4th Floor, New York, NY 10036.
4
Current edition approved October 1, 2003. Published October 2003. Originally NBS Handbook 100, available from National Technical Information Service
approved in 1948. Last previous edition approved in 1995 as B 226 – 95. (NTIS), U.S. Department of Commerce, 5285 Port Royal Rd., Springfield, VA
2
Annual Book of ASTM Standards, Vol 02.03. 22161.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1

---------------------- Page: 1 ----------------------
B 226 – 95 (2003)
TABLE 1 Construction of Cored, Annular, Concentric-Lay-Stranded Copper Conductors
Nominal Area of Number of Strands in Layers
Approximate Calculated Area of Maximum
Copper Diameter of
A
Diameter of Copper, Cross Outside Diameter,
Cross Wires, in.
Core, in. Section, cmils in.
1st 2nd 3rd Total
Section, cmils
5 000 000 2.875 0.1620 57 63 69 189 4 960 116 3.897
4 500 000 2.500 0.1620 50 56 62 168 4 408 992 3.517
4 000 000 2.250 0.1620 45 51 57 153 4 015 332 3.262
3 500 000 2.000 0.1620 40 45 52 137 3 595 428 3.007
3 000 000 1.625 0.1620 33 38 45 116 3 044 304 2.627
2 500 000 1.500 0.1440 34 40 46 120 2 488 320 2.394
2 000 000
...

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This specification covers the standard requirements for bare combination unilay-stranded conductors made from round wires of aluminum 1350 and 8000 series of aluminum alloys, for insulated conductors to be used for electrical purposes. Aluminum 1350 wires in tempers -H19, -H16 or -H26, -H14 or -H24, and -H142 or -H242 and 8000 series aluminum alloy wires in tempers “0” and H1X or H2X are permitted. These conductors shall be constructed with a central core wire surrounded by two layers of helically laid wires, resulting in an outer diameter equal to the compressed-stranded equivalent conductors. Electric-butt welds, cold pressure welds, or electric-butt cold-upset welds may be made in the finished individual wires composing the conductor. Mechanical (tension) and electrical tests shall be performed on the wires composing the conductors that are annealed and not annealed after stranding. The mass and electrical resistance of a unit length of stranded conductor shall be determined as a function of the length of lay. The conductors shall meet the breaking strength, tensile strength, and bending strength requirements.
SCOPE
1.1 This specification covers bare combination unilay-stranded conductors made from round wires of aluminum 1350 and 8000 series of aluminum alloys, for insulated conductors for electrical purposes. Aluminum 1350 wires in tempers -H19 (extra hard), -H16 or -H26 (3/4 hard), -H14 or -H24 (1/2 hard), and -H142 or -H242 (1/2 hard) and 8000 series aluminum alloys wires in tempers “0” and H1X or H2X are permitted. These conductors shall be constructed with a central core wire surrounded by two layers of helically laid wires, resulting in an outer diameter equal to the compressed-stranded equivalent conductors.  
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FIG. 1 Cross Section of Conductor  
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1.2 Compact ACSR covered by this specification has five types of steel core wire which are designated by abbreviations as follows (Explanatory Note 2 and Note 7).  
1.2.1 ACSR/GA2/COMP—Compact ACSR using Class A zinc-coated steel wire,  
1.2.2 ACSR/GC2/COMP—Compact ACSR using Class C zinc-coated steel wire,  
1.2.3 ACSR/AW2/COMP—Compact ACSR using aluminum-clad steel wire, AW2 (Normal Strength),  
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1.1 This specification covers concentric-lay-stranded conductors made from round aluminum 1350-H19 (extra hard) wires and round, coated steel core wire(s) for use as overhead electrical conductors (Explanatory Note 1 and Explanatory Note 2).  
1.2 ACSR covered by this specification has nine types of coated steel core wire which are designated by abbreviations as follows (Explanatory Note 2):  
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1.2.4 ACSR/HS or ACSR/GA3—ACSR using Class A zinc-coated high-strength steel wires,  
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1.2.9 ACSR/MA5—ACSR using Class A Zn-5Al-MM coated ultra-high-strength steel wires.  
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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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
1.5 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.

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ASTM B226-11(2021)(Specification)
Standard Specification for Cored, Annular, Concentric-Lay-Stranded Copper Conductors

ABSTRACT
This specification covers cored, annular, concentric-lay-stranded conductors made from round soft copper wires either uncoated or coated with tin for use as electrical conductors. The core may be of any materials and its size and surface firmness as a base for the overlaid wires shall be adequated to prevent forcing or dropping of any wire out of its layer position. No splice shall be made in the conductor as a whole, welds or brazes may be made in the finished individual wires. The materials shall conform to the required nominal conductor size, number of layers of wires, number, diameter, lay-up wires, approximate core diameter, and maximum conductor diameter. The mass per unit length and electrical resistance of a unit length of stranded conductor are a function of the length of lay and shall be calculated. The are of cross section of a conductor shall be considered to be the sum of the cross-sectional areas of its component wires at any section when measured perpendicularly to their individual axes.
SCOPE
1.1 This specification covers cored, annular, concentric-lay-stranded conductors made from round soft copper wires, either uncoated or coated with tin for use as electrical conductors (Explanatory Note 1 and Note 2).  
1.2 The constructions prescribed herein are suitable for bare conductors, or for conductors to be covered with weather-resistant (weather-proof) material, or for conductors to be insulated with rubber, varnished cloth, or impregnated paper, except types such as “oil-filled” or “gas-filled” (Explanatory Note 3).  
1.3 Cored, annular conductor constructions not included in this specification shall be specifically agreed upon between the manufacturer and the purchaser when placing the order.  
1.4 These constructions are not recommended for use as electric furnace leads where great flexibility is required and special conductor designs are indicated in consideration of the particular service requirements.  
1.5 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.  
1.6 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.

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ASTM B228-11a(2021)(Specification)
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, 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
1.5 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.

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ASTM B971-10(2020)e1(Specification)
Standard Specification for Silver-Coated Braid and Ribbon Flat Copper Wire intended for use in Electronic Application

ABSTRACT
This specification covers silver-coated copper braid and ribbon flat wire intended for electronic application. Two classes of silver-coated braid and ribbon flat copper wire are covered: Class A (annealed temper) and Class H (hard-drawn). The material shall be silver-coated flat wire of such quality and purity that the finished product shall meet the properties and characteristics prescribed in this specification. The specification covers tensile properties, electrical resistivity requirements, permissible variations in thickness, and permissible variations in width.
SCOPE
1.1 This specification covers silver-coated copper braid and ribbon flat wire intended for electronic application (Explanatory Note 1).  
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ASTM
ASTM B973-10(2020)e1(Specification)
Standard Specification for Tin-Coated Braid and Ribbon Flat Copper Wire intended for use in Electronic Application

ABSTRACT
This specification covers tin-coated hard-drawn copper braid and ribbon flat wire intended for electronic application. The tin shall be electroplated for the coating and shall be commercially pure. For purposes of this specification, the tin shall be considered commercially pure if the total of other elements, exclusive of copper, does not exceed 1%. This specification covers electrical resistivity requirements, permissible variations in thickness, permissible variations in width, and limiting number of test specimens for coating test.
SCOPE
1.1 This specification covers tin-coated hard-drawn copper braid and ribbon flat wire intended for electronic application (Explanatory Note 1).  
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 Exceptions—The SI values for density, resistivity, and volume 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.

  • Technical specification
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