ASTM B174-95

Standard Specification for Bunch-Stranded Copper Conductors for Electrical Conductors

SCOPE
1.1 This specification covers bare bunch-stranded conductors made from round copper wires, either uncoated or coated with tin, lead, or lead-alloy for use as electrical conductors (Explanatory Notes 1 and 2).  
1.2 Coated wires shall include only those wires with finished diameters and densities substantially equal to the respective diameters and densities of uncoated wires.  
1.3 The SI values for density and resistivity are to be regarded as the standard. For all other properties the inch-pound values are to be regarded as the standard and the SI units may be approximate.

General Information

• Status: Historical
• Publication Date: 31-Dec-1994
• ICS: 29.060.20 - Cables
• Technical Committee: B01 - Electrical Conductors
• Drafting Committee: B01.04 - Conductors of Copper and Copper Alloys

Relations

• Replaced By: ASTM B174-02 - Standard Specification for Bunch-Stranded Copper Conductors for Electrical Conductors
• Effective Date: 10-Oct-2002

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NOTICE: This standard has either been superseded and replaced by a new version or
withdrawn.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: B 174 – 95
AMERICAN SOCIETY FOR TESTING AND MATERIALS
100 Barr Harbor Dr., West Conshohocken, PA 19428
Reprinted from the Annual Book of ASTM Standards. Copyright ASTM
Standard Specification for
Bunch-Stranded Copper Conductors for Electrical
1
Conductors
This standard is issued under the fixed designation B 174; 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.
This standard has been approved for use by agencies of the Department of Defense.
1. Scope conductors are classified as shown in Table 1.
1.1 This specification covers bare bunch-stranded conduc-
4. Ordering Information
tors made from round copper wires, either uncoated or coated
4.1 Orders for material under this specification shall include
with tin, lead, or lead-alloy for use as electrical conductors
the following information:
(Explanatory Note 1 and Explanatory Note 2).
4.1.1 Quantity of each size and class,
1.2 Coated wires shall include only those wires with fin-
4.1.2 Conductor size: circular-mil area or AWG (see 7.1),
ished diameters and densities substantially equal to the respec-
4.1.3 Class (Section 3 and Table 2),
tive diameters and densities of uncoated wires.
4.1.4 Whether coated or uncoated; if coated, designate type
1.3 The SI values for density and resistivity are to be
of coating (see 11.1),
regarded as the standard. For all other properties the inch-
4.1.5 Maximum length of lay (see 6.3 and Table 3),
pound values are to be regarded as the standard and the SI units
4.1.6 Whether separator is required (see 7.2),
may be approximate.
4.1.7 Package size (see section 15.1),
2. Referenced Documents
4.1.8 Special package marking, if required (Section 14), and
4.1.9 Place of inspection (Section 13).
2.1 The following documents of the issue in effect at the
4.1.10 In addition, Supplementary Requirements shall apply
time of reference form a part of this specification to the extent
only when specified by the purchaser in the inquiry, contract, or
referenced herein:
purchase order for direct procurement by agencies of the U.S.
2.2 ASTM Standards:
2
Government (see S1, S2, and S3).
B 3 Specification for Soft or Annealed Copper Wire
B 33 Specification for Tinned Soft or Annealed Copper
2
5. Joints
Wire for Electrical Purposes
B 172 Specification for Rope-Lay-Stranded Copper Con- 5.1 Necessary joints in wires shall be made in accordance
ductors Having Bunch-Stranded Members, for Electrical with accepted commercial practice.
2
Conductors 5.2 Joints shall be so constructed and so disposed through-
B 189 Specification for Lead-Coated and Lead-Alloy- out the conductor that the diameter or configuration of the
2
Coated Soft Copper Wire for Electrical Purposes completed conductor is not substantially affected, and so that
B 263 Test Method for Determination of Cross-Sectional the flexibility of the completed conductor is not adversely
2
Area of Stranded Conductors affected.
B 354 Terminology Relating to Uninsulated Metallic Elec-
2
6. Lay
trical Conductors
2.3 American National Standard:
6.1 Conductors of the same size and description furnished
3
ANSI C42.35 Definitions of Electrical Terms
on one order shall have the same lay.
6.2 The direction of lay shall be at the option of the
3. Classification
manufacturer unless otherwise specified.
3.1 For the purpose of this specification bunch-stranded
6.3 Unless otherwise specified by the purchaser, the length
of lay of bare or coated bunch-stranded conductors shall
conform to the requirements of Column B of Table 2.
1
This specification is under the jurisdiction of ASTM Committee B-1 on
6.4 When specified, for constructions other than those listed
Electrical Conductors and is the direct responsibility of Subcommittee B01.04 on
in Footnote A of Table 2, the length of lay shall conform to the
Conductors of Copper and Copper Alloys.
Current edition approved July 15, 1995. Published September 1995. Originally
requirements of Column A of Table 2.
published as B 158 – 41 T. Last previous edition B 174 – 90.
6.5 Conductors of an intermediate nominal area in circular
2
Annual Book of ASTM Standards, Vol 02.03.
3
mils shall conform to the requirements for length of lay of the
Available from American National Standards Institute, 11 West 42nd St., 13th
Floor, New York, NY 10036. next smaller conductor.
1

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NOTICE:¬This¬standard¬has¬either¬been¬superseded¬and¬replaced¬by¬a¬new¬version¬or
discontinued.¬Contact¬ASTM¬International¬(www.astm.org)¬for¬the¬latest¬information.¬
B 174
A
TABLE 1 Classification and Construction Requirements of Bunch-Stranded Conductors
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