ASTM B869-07

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
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Designation:B869 −07
StandardSpecification for
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Copper-Clad Steel Electrical Conductor for CATV Drop Wire
This standard is issued under the fixed designation B869; 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 4. Material
1.1 This specification covers 21 % conductivity hard-drawn 4.1 The wire shall be composed of a steel core with a
round copper-clad steel wire for coaxial cable center conduc- substantially uniform and continuous copper cladding thor-
tors (Note 1). oughly bonded to it throughout.
4.2 The finished copper-clad steel wire shall conform to the
NOTE 1—Wire ordered to this specification is not intended for redraw-
ing since it is furnished in the hard-drawn temper. If wire is desired for the
requirements in this specification.
purpose, the manufacturer should be consulted.
1.2 The values stated in inch-pound units are to be regarded
5. Dimensions and Permissible Variations
as the standard. The values given in parentheses are for
5.1 The size shall be expressed as the diameter of the wire
information only.
in decimal fractions of an inch, using four places of decimals,
that is, in tenths of a mil (Note 2).
2. Referenced Documents
NOTE 2—The values of wire diameters in Table 1 and Table 2 are given
2.1 The following documents, of the issue in effect on the
to the nearest 0.0001 in. (0.0025 mm) and correspond to the standard sizes
date of material purchase, form a part of this specification to
given in Specification B258. In specifying diameters of wire or inspecting
the extent referenced herein.
wire, the diameter should also be expressed to the fourth decimal place.
2 An excellent discussion of wire gages and related subjects is contained in
2.2 ASTM Standards:
NBS Handbook 100.
B193 Test Method for Resistivity of Electrical Conductor
5.2 Within the range of diameters included in Table 1, the
Materials
wire shall not vary from the specified diameter by more than
B258 Specification for Nominal Diameters and Cross-
61 %, expressed to the nearest 0.0001 in. (0.0025 mm).
SectionalAreasofAWGSizesofSolidRoundWiresUsed
as Electrical Conductors
5.3 Ten percent, but not less than five reels (or all, if the lot
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2.3 NIST Document:
is less than five), from any lot of wire shall be gaged.All reels
NBS Handbook 100—Copper Wire Tables
shall be gaged if any of the selected reels fail to conform to the
requirements for diameter.
3. Ordering Information
3.1 Orders for material under this specification shall include 6. Workmanship, Finish, and Appearance
the following information:
6.1 The surface of the wire shall be free from imperfections
3.1.1 Quantity of each size;
and be consistent with good commercial practice.
3.1.2 Wire size: diameter in inches (see 5.1 and Table 1);
3.1.3 Package size (see 15.1);
7. Tensile and Elongation Properties
3.1.4 Specialpackagemarking,ifrequired(Section15);and
7.1 The wire shall conform to a minimum tensile require-
3.1.5 Place of inspection (13.2).
ment of 120 000 psi (827 MPa) and a minimum elongation
requirement of 1.0 %.
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This specification is under the jurisdiction of ASTM Committee B01 on
7.2 Tension tests shall be made on representative samples.
Electrical Conductorsand is the direct responsibility of Subcommittee B01.06 on
Composite Conductors.
Unless otherwise agreed upon between the manufacturer and
Current edition approved Oct. 1, 2007. Published November 2007. Originally
the purchaser, the elongation shall be determined by measure-
approved in 1996. Last previous edition approved in 2004 as B869 – 04. DOI:
ments made between the jaws of the testing machine. The zero
10.1520/B0869-07.
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lengthshallbethedistancebetweenthejawswhenaloadequal
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
to 10 % of the specified tensile strength has been applied, and
Standards volume information, refer to the standard’s Document Summary page on
the final length shall be the distance between the jaws at the
the ASTM website.
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time of rupture. The zero length shall be as near 10 in. (254
Available from National Institute of Standards and Technology (NIST), 100
Bureau Dr., Stop 1070, Gaithersburg, MD 20899-1070, http://www.nist.gov. mm) as practicable. The fracture shall be between the jaws of
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B869−07
TABLE 1 Properties of Hard-Drawn 21% Conductivity Copper-
9.2 The maximum resistance values are given in Table 1
...