ASTM B400-94

NOTICE: This standard has either been superseded and replaced by a new version or
withdrawn.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 400 – 94
AMERICAN SOCIETY FOR TESTING AND MATERIALS
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Reprinted from the Annual Book of ASTM Standards. Copyright ASTM
Standard Specification for
Compact Round Concentric-Lay-Stranded Aluminum 1350
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Conductors
This standard is issued under the fixed designation B 400; 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.
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1. Scope E 527 Practice for Numbering Metals and Alloys (UNS)
2.3 Other Documents:
1.1 This specification covers aluminum 1350-H19 (extra
1 ANSI H35.1 Alloy and Temper Designation Systems for
hard), 1350-H16 or -H26 ([n ]hard), 1350-H14 or -H24 ( ⁄2
5
1 Aluminum
hard) and 1350-H142 or -H242 ( ⁄2 hard) bare compact-round
NBS Handbook 100-Copper Wire Tables, of the National
concentric-lay-stranded conductors made from round or shaped
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Bureau of Standards
wires for use as uninsulated electrical conductors or in covered
or insulated electrical conductors. These conductors shall be
3. Classification
composed of a central core surrounded by one or more roller or
3.1 For the purpose of this specification, conductors are
die compacted layers of helically applied wires (Explanatory
classified as follows:
Note 1 and Note 2).
3.1.1 Class AA—For bare conductors usually used in over-
1.2 The SI values of density and resistivity are to be
head lines.
regarded as standard. For all other properties the inch-pound
3.1.2 Class A—For conductors to be covered with weather-
values are to be regarded as standard and the SI units may be
resistant materials, and for bare conductors where greater
approximate.
flexibility than is afforded by Class AA is required. Conductors
NOTE 1—Prior to 1975, aluminum 1350 was designated as EC alumi-
indicated for further fabrication into tree wire or to be insulated
num.
and laid helically with or around aluminum or ACSR messen-
NOTE 2—The aluminum and temper designations conform to ANSI
gers, shall be regarded as Class A conductors with respect to
Standard H35.1. Aluminum 1350 corresponds to Unified Numbering
direction of lay only (see 6.3).
System A91350 in accordance with Practice E 527.
3.1.3 Class B—For conductors to be insulated with various
materials such as rubber, paper, varnished cloth, etc., and for
2. Referenced Documents
the conductors indicated under Class A where greater flexibility
2.1 The following documents of the issue in effect on date
is required.
of material purchase form a part of this specification to the
extent referenced herein.
4. Ordering Information
2.2 ASTM Standards:
4.1 Orders for material under this specification shall include
B 230 Specification for Aluminum 1350-H19 Wire for Elec-
the following information:
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trical Purposes
4.1.1 Quantity of each size and class (Table 1),
B 231 Specification for Concentric-Lay-Stranded Alumi-
4.1.2 Conductor size; circular-mil area or AWG (Section 7),
2
num 1350 Conductors
4.1.3 Class (Section 3),
B 263 Test Method for Determination of Cross-Sectional
4.1.4 Temper (Section 13),
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Area of Stranded Conductors
4.1.5 Lay direction if nonstandard (see 6.3 and 6.4), re-
B 354 Terminology Relating to Uninsulated Metallic Elec-
versed or unidirectional (see 6.4) or special (see 6.5),
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trical Conductors
4.1.6 Special tension test, if required (see 17.2),
B 609 Specification for Aluminum 1350 Round Wire, An-
4.1.7 Place of inspection (Section 18), and
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nealed and Intermediate Tempers, for Electrical Purposes
4.1.8 Packaging and Package Marking (Section 19).
E 29 Practice for Using Significant Digits in Test Data to
4.2 In addition, supplementary requirements shall apply
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Determine Conformance with Specifications
only when specified by the purchaser in the inquiry, contract, or
purchase order for direct procurement by agencies of the U.S.
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This specification is under the jurisdiction of ASTM Committee B-1 on
Electrical Conductors and is the direct responsibility of Subcommittee B01.07 on
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Conductors of Light Metals. Annual Book of ASTM Standards, Vol 01.01.
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Current edition approved Dec. 15, 1994. Published February 1995. Originally Available from the American National Standards Institute, 11 West 42nd Street,
published as B 400 – 63 T. Last previous edition B 400 – 92. 13th Floor, New York, NY 10036.
2 6
Annual Book of ASTM Standards, Vol 02.03. Available from the National Technical Information Service, 5285 Port Royal
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Annual Book of ASTM Standards, Vol 14.02. Rd., Springfield, VA 22161.
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B 400
TABLE 1 Construction of Compact-Round Concentric-Lay-Stranded, Aluminum Conductors
NOTE 1—Metric values liste
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