ASTM B549-04

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Designation: B549 – 04
Standard Specification for
Concentric-Lay-Stranded Aluminum Conductors, Aluminum-
1
Clad Steel Reinforced (ACSR/AW)
This standard is issued under the fixed designation B549; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope 2.4 Other Standard:
NBS Handbook 100—Copper Wire Tables of the National
1.1 This specification covers concentric-lay-stranded con-
4
Bureau of Standards
ductors made from round aluminum 1350-H19 (extra hard)
aluminum wires and round aluminum-clad steel core wires for
3. Terminology
use as overhead electrical conductors (Explanatory Note 1 and
3.1 Description of Terms Specific to This Standard
Note 2).
3.1.1 ACSR covered by this specification has one type of
1.2 The SI values of density and resistivity are to be
steel core wire which is designated by the following abbrevia-
regarded as standard. For all other properties the inch-pound
tion (Explanatory Note 2):
units are regarded as standard and the SI units may be
3.1.1.1 ACSR/AW—ACSR using aluminum-clad steel wire
approximate.
(Explanatory Note 2).
2. Referenced Documents
4. Classification
2.1 The following documents of the issue in effect on date
4.1 For the purpose of this specification, conductors are
of material purchase form a part of this specification to the
classified as follows (Explanatory Note 1 and Note 2):
extent referenced herein.
2 4.1.1 Class AA—For bare conductors usually used in over-
2.2 ASTM Standards:
head lines. These conductors are used as follows:
B230/B230M Specification for Aluminum 1350−H19 Wire
4.1.1.1 Conductors used for regular overhead line construc-
for Electrical Purposes
tion and
B263 Test Method for Determination of Cross-Sectional
4.1.1.2 Conductors having a high ratio of mechanical
Area of Stranded Conductors
strength to current-carrying capacity used for overhead ground
B354 Terminology Relating to Uninsulated Metallic Elec-
wires and for extra-long span construction.
trical Conductors
4.1.2 Class A—For conductors to be covered with weather-
B502 Specification forAluminum-Clad Steel CoreWire for
resistant (weatherproof) materials.
Aluminum Conductors, Aluminum-Clad Steel Reinforced
E29 Practice for Using Significant Digits in Test Data to
5. Ordering Information
Determine Conformance with Specifications
3 5.1 Ordersformaterialunderthisspecificationshallinclude
2.3 ANSI Standards:
the following information:
ANSI C42.100 Dictionary of Electrical and Electronics
5.1.1 Quantity of each size, stranding, and class,
Terms
5.1.2 Conductor size: circular mil area or AWG of alumi-
ANSI H35.1 American National StandardAlloy and Tem-
num wires (Section 9 and Table 1),
per Designation Systems for Aluminum
5.1.3 Number of wires, aluminum, and aluminum-clad steel
(Table 1),
1
This specification is under the jurisdiction of ASTM Committee B01 on
5.1.4 Direction of lay of outer layer of aluminum wires if
Electrical Conductors and is the direct responsibility of Subcommittee B01.07 on
other than right-hand (see 8.2),
Conductors of Light Metals.
5.1.5 Special tests, if required (see 15.3 and 15.5),
Current edition approved Sept. 1, 2004. Published September 2004. Originally
approved in 1971. Last previous edition approved in 2000 as B549–00. DOI: 5.1.6 Package size (see 17.1 and Explanatory Note 5),
10.1520/B0549-04.
5.1.7 Special package marking, if required (Section 17),
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
5.1.8 Lagging, if required (see 17.3), and
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
the ASTM website.
3 4
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B549 – 04
A
TABLE 1 Construction Requirements of Concentric-Lay-Stranded Aluminum Conductors, Aluminum-Clad Steel Reinforced
Conductor Size Stranding
Conductor Conductor
Approximate Rated Mass per
Aluminum Aluminum-Clad Steel
Cross-sectional Cross-sectional Strength Unit Length
Area Using Area Including
Only Nominal
Aluminum Aluminum
Nominal Nominal
Num- Num-
Strand Wires Area in AW
Diameter Diameter
ber ber lb/
D
Strand Wires
of of (1000 1000
B 2 2 C
Code Name cmil mm cmil mm Class Wires in. mm Wires in. mm lbf) kN ft kg/km
Th
...