ASTM B172-01

Standard Specification for Rope-Lay-Stranded Copper Conductors Having Bunch-Stranded Members, for Electrical Conductors

SCOPE
1.1 This specification covers bare rope-lay-stranded conductors having bunch-stranded members 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 values stated in inch-pound or SI units are to be regarded separately as standard. Each system shall be used independently of the other. Combining values from the two systems may result in nonconformance with the specification. For conductor sizes designated by AWG or kcmil, the requirements in SI units have been numerically converted from corresponding values, stated or derived, in inch-pound units. For conductor sizes designated by SI units only, the requirements are stated or derived in SI units.
1.3.1 For density, resistivity, and temperature, the values stated in SI units are to be regarded as standard.

General Information

• Status: Historical
• Publication Date: 09-Oct-2001
• ICS: 29.060.20 - Cables
• Technical Committee: B01 - Electrical Conductors
• Drafting Committee: B01.04 - Conductors of Copper and Copper Alloys

Relations

• Replaces: ASTM B172-95 - Standard Specification for Rope-Lay-Stranded Copper Conductors Having Bunch-Stranded Members, for Electrical Conductors
• Effective Date: 10-Oct-2001
• Replaced By: ASTM B172-01a - Standard Specification for Rope-Lay-Stranded Copper Conductors Having Bunch-Stranded Members, for Electrical Conductors
• Effective Date: 10-Oct-2001
• Referred By: ASTM B226-11(2021) - Standard Specification for Cored, Annular, Concentric-Lay-Stranded Copper Conductors
• Effective Date: 10-Oct-2001
• Referred By: ASTM F2249-23 - Standard Specification for In-Service Test Methods for Temporary Grounding Jumper Assemblies Used on De-Energized Electric Power Lines and Equipment
• Effective Date: 10-Oct-2001
• Referred By: ASTM B174-17 - Standard Specification for Bunch-Stranded Copper Conductors for Electrical Conductors
• Effective Date: 10-Oct-2001
• Referred By: ASTM B173-17 - Standard Specification for Rope-Lay-Stranded Copper Conductors Having Concentric-Stranded Members, for Electrical Conductors
• Effective Date: 10-Oct-2001
• Referred By: ASTM B8-11(2017) - Standard Specification for Concentric-Lay-Stranded Copper Conductors, Hard, Medium-Hard, or Soft
• Effective Date: 10-Oct-2001
• Referred By: ASTM F855-23 - Standard Specifications for Temporary Protective Grounds to Be Used on De-energized Electric Power Lines and Equipment
• Effective Date: 10-Oct-2001
• Referred By: ASTM F2321-23 - Standard Specification for Flexible and Rigid Insulated Temporary By-Pass Jumpers
• Effective Date: 10-Oct-2001
• Referred By: ASTM B738-13(2018) - Standard Specification for Fine-Wire Bunch-Stranded and Rope-Lay Bunch-Stranded Copper Conductors for Use as Electrical Conductors
• Effective Date: 10-Oct-2001

Standards Content (Sample)

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.
Designation: B 172 – 01
Standard Specification for
Rope-Lay-Stranded Copper Conductors Having Bunch-
1
Stranded Members, for Electrical Conductors
This standard is issued under the fixed designation B 172; 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 B 263 Test Method for Determination of Cross-Sectional
2
Area of Stranded Conductors
1.1 This specification covers bare rope-lay-stranded con-
B 354 Terminology Relating to Uninsulated Metallic Elec-
ductors having bunch-stranded members made from round
2
trical Conductors
copper wires, either uncoated or coated with tin, lead, or
2.3 American National Standard:
lead-alloy for use as electrical conductors (Explanatory Notes
3
ANSI C42.35 Definitions of Electrical Terms
1 and 2).
1.2 Coated wires shall include only those wires with fin-
3. Classification
ished diameters and densities substantially equal to the respec-
3.1 For the purpose of this specification rope-lay-stranded
tive diameters and densities of uncoated wires.
conductors having bunch-stranded members are classifed as
1.3 The values stated in inch-pound or SI units are to be
follows:
regarded separately as standard. Each system shall be used
3.1.1 Class I—Conductors consisting of wires 0.0201 in.
independently of the other. Combining values from the two
(0.511 mm) diameter (No. 24 AWG) to produce rope-lay-
systems may result in nonconformance with the specification.
2
stranded conductors up to 2 000 000 cmil (1013 mm ) in total
For conductor sizes designated by AWG or kcmil, the require-
cross-sectional area. (Typical use is for special apparatus
ments in SI units have been numerically converted from
conductor.)
corresponding values, stated or derived, in inch-pound units.
3.1.2 Class K—Conductors consisting of wires 0.0100 in.
For conductor sizes designated by SI units only, the require-
(0.254 mm) diameter (No. 30 AWG) to produce rope-lay-
ments are stated or derived in SI units.
2
stranded conductors up to 1 000 000 cmil (507 mm ) in total
1.3.1 For density, resistivity, and temperature, the values
cross-sectional area. (Typical use is for special portable cord
stated in SI units are to be regarded as standard.
and conductors.)
2. Referenced Documents 3.1.3 Class M—Conductors consisting of wires 0.0063 in.
(0.160 mm) diameter (No. 34 AWG) to produce rope-lay-
2.1 The following documents of the issue in effect at the
2
stranded conductors up to 1 000 000 cmil (507 mm ) in total
time of reference form a part of this specification to the extent
cross-sectional area. (Typical use is for welding conductors.)
referenced herein:
2.2 ASTM Standards:
4. Ordering Information
2
B 3 Specification for Soft or Annealed Copper Wire
4.1 Orders for material under this specification shall include
B 33 Specification for Tinned Soft or Annealed Copper
2 the following information:
Wire for Electrical Purposes
4.1.1 Quantity of each size and class,
B 173 Specification for Rope-Lay-Stranded Copper Con-
4.1.2 Conductor size: circular-mil area or AWG (see 7.1),
ductors Having Concentric-Stranded Members, for Elec-
2 4.1.3 Class (Section 4 and Table 1),
trical Conductors
4.1.4 Whether coated or uncoated; if coated, designate type
B 189 Specification for Lead-Coated and Lead-Alloy-
2 of coating (see 11.1),
Coated Soft Copper Wire for Electrical Purposes
4.1.5 Details of special-purpose lays, if required (see 6.2
and 6.3 and Explanatory Note 3),
4.1.6 Package size (see 15.1),
1
This specification is under the jurisdiction of ASTM Committee B01 on
4.1.7 Special package marking, if required (Section 14),
Electrical Conductors and is the direct responsibility of Subcommittee B01.04 on
Conductors of Copper and Copper Alloys.
Current edition approved Mar. 10, 2001. Published May 2001. Originally issued
3
1942 to replace portions of B 158–41 T. Last previous edition B 172 – 95. Available from American National Standards Institute, 11 West 42nd Street,
2
Annual Book of ASTM Standards, Vol 02.03. 13th Floor, New York, NY 10036.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1

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B 172
A
TABLE 1 Construction Requirements of Rope-Lay Stranded Copper Conductors Having Bunch-Stranded Members
Class I Class K Class M
Wire Wire Wire
Area of
Diameter Diameter Diameter
Cross
0.0201 0.0100 0.0063
Section
Size in. in. in.
AWG (0.511 Approximate (0.254 Approximate (0.160 Approximate
B B B
mm) Mass mm) Mass mm) Mass
cmil mm Nominal Strand lb/ kg/ Nominal Strand lb/ kg/ Nominal Strand lb/ kg/
C C C
Number Constr
...