ASTM B566-04a

Standard Specification for Copper-Clad Aluminum Wire

ABSTRACT
This specification covers bare round copper-clad aluminum wire for electrical applications. Four classes of copper-clad aluminum wire are covered such as Class 10A, Class 15A, Class 10H, Class 15H. The wire shall consist of a core of aluminum with a continuous outer cladding of copper throughly bonded to the core throughout and shall be of such quality as to meet the requirements of this specification. The copper-clad aluminum wire shall conform to the tensile strength and elongation requirements. The electrical resistivity shall be measured. The copper-clad aluminum wire, when tested shall be free from seams or splits. They shall be free from cladding delamination. The finished wire shall contain no joints or splices. The density of the wire shall be taken for calculating mass/unit length, cross section and so forth.
SCOPE
1.1 This specification covers bare round copper-clad aluminum wire for electrical applications.
1.2 Four classes of copper-clad aluminum wire are covered as follows:
Class 10A—Nominal 10 volume % copper, annealed.
Class 15A—Nominal 15 volume % copper, annealed.
Class 10H—Nominal 10 volume % copper, hard-drawn.
Class 15H—Nominal 15 volume % copper, hard-drawn.
1.3 The values stated in inch-pound units are to be regarded as the standard, except for resistivity and density, where the SI units are the standard. The values given in parentheses are for information only.

General Information

• Status: Historical
• Publication Date: 31-Aug-2004
• ICS: 29.060.10 - Wires
• Technical Committee: B01 - Electrical Conductors
• Drafting Committee: B01.06 - Bi-Metallic Conductors

Relations

• Replaces: ASTM B566-04 - Standard Specification for Copper-Clad Aluminum Wire
• Effective Date: 01-Sep-2004
• Replaced By: ASTM B566-04a(2011) - Standard Specification for Copper-Clad Aluminum Wire
• Effective Date: 01-Apr-2011
• Referred By: ASTM B193-20 - Standard Test Method for Resistivity of Electrical Conductor Materials
• Effective Date: 01-Sep-2004

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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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: B566 – 04a
Standard Specification for
1
Copper-Clad Aluminum Wire
This standard is issued under the fixed designation B566; 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.
This standard has been approved for use by agencies of the Department of Defense.
1. Scope 3.1.2 sample—a quantity of production units (coils, reels,
and so forth) selected at random from the lot for the purpose of
1.1 This specification covers bare round copper-clad alumi-
determining conformance of the lot to the requirements of this
num wire for electrical applications.
specification.
1.2 Four classes of copper-clad aluminum wire are covered
3.1.3 specimen—a length of wire removed for test purposes
as follows:
from any individual production unit of the sample.
Class 10A—Nominal 10 volume % copper, annealed.
Class 15A—Nominal 15 volume % copper, annealed.
4. Ordering Information
Class 10H—Nominal 10 volume % copper, hard-drawn.
4.1 Orders for material under this specification shall include
Class 15H—Nominal 15 volume % copper, hard-drawn.
the following information:
1.3 The values stated in inch-pound units are to be regarded
4.1.1 Quantity of each size and class;
as the standard, except for resistivity and density, where the SI
4.1.2 Wire size, diameter in inches (see Section 7 and Table
units are the standard. The values given in parentheses are for
1);
information only.
4.1.3 Class of wire (see 1.2 and Table 1);
2. Referenced Documents 4.1.4 Packaging and shipping (Section 14 and packaging
inspection if required, 13.1); and
2.1 The following documents of the issue in effect on date
4.1.5 Place of inspection (see 13.1).
of material purchase form a part of this specification to the
extent referenced herein:
5. Materials and Manufacture
2
2.2 ASTM Standards:
5.1 The wire shall consist of a core of aluminum with a
B193 Test Method for Resistivity of Electrical Conductor
continuous outer cladding of copper thoroughly bonded to the
Materials
core throughout and shall be of such quality as to meet the
B258 Specification for Nominal Diameters and Cross-
requirements of this specification.
SectionalAreas ofAWG Sizes of Solid Round Wires Used
as Electrical Conductors
6. General Requirements
3
2.3 National Institute of Standards and Technology:
6.1 Tensile Strength and Elongation—The copper-clad alu-
NBS Handbook 100—Copper Wire Tables
minum wire shall conform to the tensile strength and elonga-
tion requirements of Table 1. For intermediate diameters not
3. Terminology
listed in Table 1, the elongation requirements of the next
3.1 Definitions of Terms Specific to This Standard:
smaller size shall apply; in the case of tensile strength the
3.1.1 lot—a lot is any amount of wire of one class and size
requirements of the next larger size shall apply.
presented for acceptance at one time; such amount, however,
6.2 Resistivity—The electrical resistivity at a temperature of
not to exceed 100 production units.
20°C shall not exceed the values prescribed in Table 2. See
Note 1 for calculating electrical resistance.
1
This specification is under the jurisdiction of ASTM Committee B01 on
NOTE 1—Relationships which may be useful in connection with the
Electrical Conductors and is the direct responsibility of Subcommittee B01.06 on
Composite Conductors. values of electrical resistivity prescribed in this specification are shown in
Current edition approved Sept. 1, 2004. Published September 2004. Originally
Table 3. Resistivity units are based on the International Annealed Copper
2
approved in 1972. Last previous edition approved in 2004 as B566 – 04. DOI: 1
Standard (IACS) adopted by IEC in 1913, which is ⁄58 V·mm /m and the
10.1520/B0566-04A. 2
value of 0.15328 V·g/m at 20°C are, respectively, the international
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
equivalent of volume and weight resistivity of annealed copper equal to
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
100 % conductivity.The later term means that a copper wire1min length
Standards volume information, refer to the standard’s Document Summary page on
andweighing1gwouldhavearesistanceof0.15328 V.Thisisequivalent
the ASTM website.
2
3
to a resistivity value of 875.20 V·lb/mile , which signifies the resistance
Available from National Institute of Standards and Technology (NIST), 100
of a copper wire 1 mile in length weighing 1 lb. It is also equivalent, for
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