ASTM B286-95

Standard Specification for Copper Conductors for Use in Hookup Wire for Electronic Equipment

SCOPE
1.1 This specification covers uninsulated metallic-coated copper conductors for use in hookup wire for electronic equipment.
1.2 The SI values for density are to be regarded as standard. For all other properties, the inch-pound values are to be regarded as the standard.

General Information

• Status: Historical
• Publication Date: 31-Dec-1994
• ICS: 29.060.10 - Wires
• Technical Committee: B01 - Electrical Conductors
• Drafting Committee: B01.04 - Conductors of Copper and Copper Alloys

Relations

• Replaced By: ASTM B286-02 - Standard Specification for Copper Conductors for Use in Hookup Wire for Electronic Equipment
• Effective Date: 10-Oct-2002

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NOTICE: This standard has either been superseded and replaced by a new version or
withdrawn.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: B 286 – 95
AMERICAN SOCIETY FOR TESTING AND MATERIALS
100 Barr Harbor Dr., West Conshohocken, PA 19428
Reprinted from the Annual Book of ASTM Standards. Copyright ASTM
Standard Specification for
Copper Conductors for Use in Hookup Wire for Electronic
1
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 ductors, class of coating (see 4.1), and when required, unan-
nealed (see 4.2),
1.1 This specification covers uninsulated metallic-coated
3.1.5 Desired constructions where alternates are given
copper conductors for use in hookup wire for electronic
(Table 1, Type II and, 5.1, 6.1, and 6.2),
equipment.
3.1.6 Package size (Section 12).
1.2 The SI values for density are to be regarded as standard.
3.1.7 Special package marking if required (Section 11), and
For all other properties, the inch-pound values are to be
3.1.8 Place of inspection (Section 10).
regarded as the standard.
3.2 In addition, Supplementary Requirements shall apply
2. Referenced Documents
only when specified by the purchaser in the inquiry, contract, or
purchase order for direct procurement by agencies of the U.S.
2.1 The following documents of the issue in effect on date
Government (S1, S2, and S3).
of material purchase form a part of this specification to the
extent referenced herein:
4. General Requirements
2.2 ASTM Standards:
4.1 Coating of Wires— The coating of the solid conductors
B 33 Specification for Tinned Soft or Annealed Copper
2 and the wires composing stranded conductors (before strand-
Wire for Electrical Purposes
ing) shall conform to the coating requirements of ASTM
B 189 Specification for Lead-Coated and Lead-Alloy-
2
Specifications B 33, B 189, B 298, and B 355, as indicated on
Coated Soft Copper Wire for Electrical Purposes
the purchase order.
B 193 Test Method for Resistivity of Electrical Conductor
2
4.2 Temper—Unless otherwise specified, all coated conduc-
Materials
tors shall be furnished in the annealed temper. When so
B 258 Specification for Standard Nominal Diameters and
specified, silver-coated conductors or nickel-coated conductors
Cross-Sectional Areas of AWG Sizes of Solid Round Wires
2
shall be furnished unannealed (Explanatory Note 1).
Used as Electrical Conductors
B 298 Specification for Silver-Coated Soft or Annealed
NOTE 1—The term unannealed as used in this specification means
2
Copper Wire cold-worked conductor as produced on commerical wire-drawing ma-
chines.
B 355 Specification for Nickel-Coated Soft or Annealed
2
Copper Wire
4.3 Elongation—The elongation of annealed Type I conduc-
tors shall be as specified in Specifications B 33, B 189, B 298,
3. Ordering Information
and B 355 as applicable. The elongation of annealed individual
3.1 Orders for material under this specification shall include
wires removed from stranded conductors shall be permitted to
the following information:
vary from the requirements of the applicable specifications,
3.1.1 Quantity of each size, designation (Table 1) and type,
Specifications B 33, B 189, B 298, and B 355 by the following
3.1.2 Conductor size, designation, construction, and type
amounts:
(Table 1).
4.3.1 Average of Results Obtained on All Wires Tested—The
3.1.3 Whether tin, lead alloy, silver-coated, or nickel-coated
minimum elongation required shall be reduced in numerical
(see 4.1).
value 5 (for example: from 15 % to 10 %) from the numerical
3.1.4 For silver-coated conductors and nickel-coated con-
requirements for the wire before stranding.
4.3.2 Results Obtained on Individual Wires—The elonga-
1
This specification is under the jurisdiction of ASTM Committee B-1 on tion of individual wires shall be reduced in numerical value 10
Electrical Conductors and is the direct responsibility of Subcommittee B01.04on
from the minimum requirements before stranding (that is: 5 in
Conductors of Copper and Copper Alloys.
addition to the 5 allowed in 4.3.1), but in no case shall the
Current edition approved July 15, 1995. Published September 1995. Originally
elongation of any individual wire be less than 5 %.
published as B 286 – 54 T. Last previous edition B 286 – 89.
2
Annual Book of ASTM Standards, Vol 02.03.
1

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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.¬
B 286
4.4 D-C Resistance— The d-c resistance in ohms per 1000 8. Physical and Electrica
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