Standard Specification for Lead-Coated and Lead-Alloy-Coated Soft Copper Wire for Electrical Purposes

ABSTRACT
This specification covers the standard general requirements for lead-coated and lead-alloy-coated, round, soft or annealed copper wire for electrical purposes. The base metal shall be made of copper while the coating material shall be a commercially pure lead or a lead alloy which consists of lead, tin, and antimony elements. Ammonium persulfate test or sodium polysulfide-hydrochloric acid test shall be employed to determine the continuity of the coatings. The wire shall undergo dimensional measurements using a micrometer caliper with a vernier, as well as tension and resistivity tests. The specimen shall conform to the required tensile strength, elongation, and electrical resistivity specifications.
SCOPE
1.1 This specification covers lead-coated and lead-alloy-coated, round, soft or annealed copper wire for electrical purposes.
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. The SI values for density and resistivity are to be regarded as the 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 and health practices and determine the applicability of regulatory limitations prior to use. The hazard statement applies only to Section 6 of this specification.

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30-Sep-2010
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ASTM B189-05(2010) - Standard Specification for Lead-Coated and Lead-Alloy-Coated Soft Copper Wire for Electrical Purposes
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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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:B189 −05(Reapproved 2010)
Standard Specification for
Lead-Coated and Lead-Alloy-Coated Soft Copper Wire for
1
Electrical Purposes
This standard is issued under the fixed designation B189; 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 lead-coated and lead-alloy-
3.1 Orders for material under this specification shall include
coated, round, soft or annealed copper wire for electrical
the following information:
purposes.
3.1.1 Quantity of each size and type of coating;
3.1.2 Wire size: diameter in inches (see 5.3 and Table 1);
1.2 The values stated in inch-pound units are to be regarded
as standard. The values given in parentheses are mathematical
3.1.3 Type of coating (see Section 1);
conversions to SI units that are provided for information only
3.1.4 Type of copper, if special (see 4.2);
and are not considered standard. The SI values for density and
3.1.5 Package size (see 8.1);
resistivity are to be regarded as the standard.
3.1.6 Special package marking, if required; and
1.3 This standard does not purport to address all of the
3.1.7 Place of inspection (see 6.1).
safety concerns, if any, associated with its use. It is the
responsibility of the user of this standard to establish appro-
4. Material
priate safety and health practices and determine the applica-
4.1 Coating Material—The coating material shall be com-
bility of regulatory limitations prior to use. The hazard
mercially pure lead or a lead alloy. The lead alloy shall
statement applies only to Section 6 of this specification.
conform to the following requirements as to chemical compo-
sition as determined by analysis of samples from the coating
2. Referenced Documents
bath:
2.1 The following documents of the issue in effect at the
time of reference form a part of these methods to the extent
Lead, min, % 25
referenced herein: A
Tin, max, % 75
2 Antimony, max, % 6
2.2 ASTM Standards:
B49 Specification for Copper Rod Drawing Stock for Elec-
A
It is permissible to use alloying constituents other than those specified above to
trical Purposes
replace a portion of the tin.
B193 Test Method for Resistivity of Electrical Conductor
4.2 Copper-Base Metal—The base metal shall be copper of
Materials
such quality and purity that the finished product shall have
B258 Specification for Nominal Diameters and Cross-
properties and characteristics prescribed in this specification.
SectionalAreasofAWGSizesofSolidRoundWiresUsed
4.2.1 Copper of special qualities, forms, or types, as may be
as Electrical Conductors
agreed upon between the manufacturer and the purchaser, and
2.3 NIST:
which will conform to the requirements prescribed in this
3
NBS Handbook 100 Copper Wire Tables
specification may also be used.
NOTE 1—Specification B49 defines copper suitable for use.
1
This specification is under the jurisdiction of ASTM Committee B01 on
Electrical Conductors and is the direct responsibility of Subcommittee B01.04 on
5. General Requirements (See Section 9)
Conductors of Copper and Copper Alloys.
Current edition approved Oct. 1, 2010. Published December 2010. Originally
5.1 Tensile Strength and Elongation (Explanatory Note
approved in 1944. Discontinued July 2003 and reinstated as B189 – 05. Last
1)—The coated wire shall conform to the requirements for
previous edition approved in 2005 as B189 – 05. DOI: 10.1520/B0189-05R10.
2
elongation prescribed in Table 1. No requirements for tensile
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
strength are specified. For wire whose nominal diameter is
Standards volume information, refer to the standard’s Document Summary page on
more than 0.001 in. (1 mil) greater than a size listed in Table 1,
the ASTM website.
3
butlessthanthatofthenextlargersize,therequirementsofthe
Available from National Technical Information Service (NTIS), U.S. Depart-
ment of Commerce, 5285 Port Royal Rd., Springfield, VA 22161. next larger size shall apply.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

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B189−05 (2010)
TABLE 1 Tensile Requirements
5.3 Dimensions and Permissible Variations (Explanatory
Area at 20°C Note 1)—The wire sizes shall be expressed as the diameter of
Elongation in 10
Diameter, in.
2
in., min, %
cmils in. thewireindecimalfractionsofaninchtothenearest0.0001in.
0.4600 211 600 0.1662 30 (0.1 mil). The coated wire shall not vary from the specified
...

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