ASTM B400-04

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Designation: B 400 – 04
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 2.2 ASTM Standards:
B 230/B 230M Specification forAluminum 1350-H19 Wire
1.1 This specification covers aluminum 1350-H19 (extra
1 for Electrical Purposes
hard), 1350-H16 or -H26 ([n ]hard), 1350-H14 or -H24 ( ⁄2
B 231/B 231M Specification for Concentric-Lay-Stranded
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hard) and 1350-H142 or -H242 ( ⁄2 hard) bare compact-round
Aluminum 1350 Conductors
concentric-lay-strandedconductorsmadefromroundorshaped
B 263 Test Method for Determination of Cross-Sectional
wires for use as uninsulated electrical conductors or in covered
Area of Stranded Conductors
or insulated electrical conductors. These conductors shall be
B 354 Terminology Relating to Uninsulated Metallic Elec-
composedofacentralcoresurroundedbyoneormorerolleror
trical Conductors
die compacted layers of helically applied wires (Explanatory
B 609 Specification for Aluminum 1350 Round Wire, An-
Note 1 and Note 2).
nealed and Intermediate Tempers, for Electrical Purposes
1.2 The values stated in inch-pound or SI units are to be
E 29 Practice for Using Significant Digits in Test Data to
regarded separately as standard. Each system shall be used
Determine Conformance with Specifications
independently of the other. Combining values from the two
E 527 Practice for Numbering Metals and Alloys (UNS)
systems may result in non-conformance with the specification.
2.3 Other Documents:
For conductor sizes designated by AWG or kcmil sizes, the
ANSI H35.1 Alloy and Temper Designation Systems for
requirements in SI units are numerically converted from the
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Aluminum
correspondingrequirementsininch-poundunits.Forconductor
NBS Handbook 100-Copper Wire Tables, of the National
sizes designation by AWG or kcmil, the requirements in SI
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Bureau of Standards
units have been numerically converted from corresponding
values stated or derived in inch-pound units. For conductor
3. Classification
sizesdesignatedbySIunitsonly,therequirementsarestatedor
3.1 For the purpose of this specification, conductors are
derived in SI units.
classified as follows:
1.2.1 For density, resistivity and temperature, the values
3.1.1 Class AA—For bare conductors usually used in over-
stated in SI units are to be regarded as standard.
head lines.
NOTE 1—Prior to 1975, aluminum 1350 was designated as EC alumi-
3.1.2 Class A—For conductors to be covered with weather-
num.
resistant materials, and for bare conductors where greater
NOTE 2—The aluminum and temper designations conform to ANSI
flexibility than is afforded by ClassAAis required. Conductors
Standard H35.1. Aluminum 1350 corresponds to Unified Numbering
indicatedforfurtherfabricationintotreewireortobeinsulated
System A91350 in accordance with Practice E 527.
and laid helically with or around aluminum or ACSR messen-
2. Referenced Documents
gers, shall be regarded as Class A conductors with respect to
direction of lay only (see 6.3).
2.1 The following documents of the issue in effect on date
of material purchase form a part of this specification to the
extent referenced herein.
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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
Standards volume information, refer to the standard’s Document Summary page on
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This specification is under the jurisdiction of ASTM Committee B01 on
the ASTM website.
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Electrical Conductors and is the direct responsibility of Subcommittee B01.07 on
Available fromAmerican National Standards Institute (ANSI), 25 W. 43rd St.,
Conductors of Light Metals.
4th Floor, New York, NY 10036.
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Current edition approved April 1, 2004. Published April 2004. Originally
Available from National Technical Information Service (NTIS), U.S. Depart-
approved in 1963. Last previous edition approved in 2001 as B 400 – 01.
ment of Commerce, 5285 Port Royal Rd., Springfield, VA 22161.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
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B 400–04
3.1.3 Class B—For conductors to be insulated with various 4.1.8 Packaging and Package Marking (Section 19).
materials such as rubber, paper, varnished cloth, and so forth,
5. Joints
and for the conductors indicated under Class A where greater
flexibility is required.
5.1 1350-H19 Conductors for Use in Bare Overhead
Lines:
4. Ordering Information
5.1.1 Joints may b
...