ASTM B286-02

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
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Designation: B 286 – 02
Standard Specification for
Copper Conductors for Use in Hookup Wire for Electronic
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Equipment
This standard is issued under the fixed designation B 286; 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 3.1.3 Whether tin, lead alloy, silver-coated, or nickel-coated
(see 4.1).
1.1 This specification covers uninsulated metallic-coated
3.1.4 For silver-coated conductors and nickel-coated con-
copper conductors for use in hookup wire for electronic
ductors, class of coating (see 4.1), and when required, unan-
equipment.
nealed (see 4.2),
1.2 The SI values for density are to be regarded as standard.
3.1.5 Desired constructions where alternates are given
For all other properties, the inch-pound values are to be
(Table 1, Type II and, 5.1, 6.1, and 6.2),
regarded as the standard.
3.1.6 Package size (Section 12).
2. Referenced Documents
3.1.7 Special package marking if required (Section 11), and
3.1.8 Place of inspection (Section 10).
2.1 The following documents of the issue in effect on date
of material purchase form a part of this specification to the
4. General Requirements
extent referenced herein:
4.1 Coating of Wires— The coating of the solid conductors
2.2 ASTM Standards:
and the wires composing stranded conductors (before strand-
B 33 Specification for Tinned Soft or Annealed Copper
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ing) shall conform to the coating requirements of ASTM
Wire for Electrical Purposes
Specifications B 33, B 189, B 298, and B 355, as indicated on
B 189 Specification for Lead-Coated and Lead-Alloy-
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the purchase order.
Coated Soft Copper Wire for Electrical Purposes
4.2 Temper—Unless otherwise specified, all coated conduc-
B 193 Test Method for Resistivity of Electrical Conductor
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tors shall be furnished in the annealed temper. When so
Materials
specified, silver-coated conductors or nickel-coated conductors
B 258 Specification for Standard Nominal Diameters and
shall be furnished unannealed (Explanatory Note 1).
Cross-SectionalAreasofAWGSizesofSolidRoundWires
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Used as Electrical Conductors
NOTE 1—The term unannealed as used in this specification means
B 298 Specification for Silver-Coated Soft or Annealed cold-worked conductor as produced on commercial wire-drawing ma-
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chines.
Copper Wire
B 355 Specification for Nickel-Coated Soft or Annealed
4.3 Elongation—TheelongationofannealedTypeIconduc-
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Copper Wire
tors shall be as specified in Specifications B 33, B 189, B 298,
and B 355 as applicable.The elongation of annealed individual
3. Ordering Information
wires removed from stranded conductors shall be permitted to
3.1 Orders for material under this specification shall include
vary from the requirements of the applicable specifications,
the following information:
Specifications B 33, B 189, B 298, and B 355 by the following
3.1.1 Quantity of each size, designation (Table 1) and type,
amounts:
3.1.2 Conductor size, designation, construction, and type
4.3.1 Average of Results Obtained onAll Wires Tested—The
(Table 1).
minimum elongation required shall be reduced in numerical
value 5 (for example: from 15 % to 10 %) from the numerical
requirements for the wire before stranding.
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This specification is under the jurisdiction of ASTM Committee B01 on
4.3.2 Results Obtained on Individual Wires—The elonga-
Electrical Conductors and is the direct responsibility of Subcommittee B01.04 on
Conductors of Copper and Copper Alloys. tion of individual wires shall be reduced in numerical value 10
Current edition approved Oct. 10, 2002. Published January 2003. Originally
from the minimum requirements before stranding (that is: 5 in
approved in 1954. Last previous edition approved in 1995 as B 286 – 95.
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Annual Book of ASTM Standards, Vol 02.03.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
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B286–02
addition to the 5 allowed in 4.3.1), but in no case shall the shall be performed on Type I conductors before insulating and
elongation of any individual wire be less than 5 %. on the individual wires of Type II conductors before stranding.
4.4 D-C Resistance— The d-c resistance in ohms per 1000 8.2 Tests to determine conformance to the elongation re-
ft of annealed solid and stranded conductor shall not exceed, quirements prescribed in 4.3 shall be made before insulating
before insulating, the appropriate values prescribed in Table 1 and, in the case of stranded conductors, on component wires
(Explanatory Note 1)
...