ASTM-B778 2012

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B778-02(2012) Standard Specification for Shaped Wire Compact Concentric-Lay-Stranded Aluminum Conductors (AAC/TW)

Published By	Publication Date	Number of Pages
ASTM	2012	4

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Categories: 29.240.20 - Power transmission and distribution lines, ASTM

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Description

ASTM B778-02-Reapproved2012

Historical Standard: Standard Specification for Shaped Wire Compact Concentric-Lay-Stranded Aluminum Conductors (AAC/TW)

ASTM B778

Scope

1.1 This specification covers shaped wire compact concentric-lay-stranded aluminum conductor (AAC/TW) and its component wires for use as overhead electrical conductors (Explanatory Note 1 and Note 2).

1.2 The values stated in inch-pound units are to be regarded as the standard with the exception of temperature and resistivity. The SI equivalents of inch-pound units may be approximate.

Note 1—AAC/TW is designed to increase the aluminum area for a given diameter of conductor by the use of trapezoidally shaped wires (TW). The conductors consist of a central core of one round aluminum wire or a seven-strand compact round core surrounded by two or more layers of trapezoidal aluminum 1350-H19 wires. For the purposes of this specification, the sizes listed are tabulated on the basis of the finished conductor having an area equal to that of specific sizes of standard AAC (Table 1) or in fixed diameter increments (Table 2) so as to facilitate conductor selection.

TABLE 1 Construction Requirements for Shaped Wire Compact Concentric-Lay-Stranded Aluminum Conductors Sized to Have Areas Equal to AAC Size

^A Code words shown in this column are obtained from “Publication 50, Code Words for Overhead Aluminum Electrical Conductors,” by the Aluminum Association. They are provided for information only.

TABLE 2 Construction Requirements for Shaped Wire Compact Concentric-Lay-Stranded Aluminum Conductors, in Fixed-Diameter Increments

^A Code words shown in this column are obtained from “Publication 50, Code Words for Overhead Aluminum Electrical Conductors,” by the Aluminum Association. They are provided for information only.

Note 2—The aluminum and temper designations conform to ANSI Standard H 35.1. Aluminum 1350 corresponds to Unified Numbering System (UNS) A91350 in accordance with Practice E527.

Keywords

AAC/TW; aluminum conductor; compact conductor; compact conductor, aluminum; concentric-lay-stranded aluminum conductor; electrical conductor; electrical conductor, aluminum; shaped wire compact conductor; shaped wire compact conductor, aluminum; shaped wire conductor; shaped wire conductor, aluminum; trapezoidal conductor; trapezoidal conductor, aluminum

ICS Code

ICS Number Code 29.240.20 (Power transmission and distribution lines)

DOI: 10.1520/B0778-02R12

Additional information

Coreopsis/TW	1590.0
Jessamine/TW	1750.0
Jefferson/TW	2388.1
Shasta/TW	2667.2
Hawthorn/TW	1192.5
Verbena/TW	700.0
Narcissus/TW	1272.0
Mazama/TW	1346.8
Kcmil	mm
Carnation/TW	1431.0
Canna/TW	397.5
Hawkweed/TW	1000.0
Wheeler/TW	449.4
Logan/TW	322.5
Robson/TW	595.8
Meadowsweet/TW	600.0
Nasturtium/TW	750.0
Bluebell/TW	1033.5
Zinnia/TW	500.0
Columbine/TW	1351.5
Mistletoe/TW	556.5
Arbutus/TW	795.0
Magnolia/TW	954.0
Whitney/TW	1812.7
Tulip/TW	336.4
Cockscomb/TW	900.0
Hood/TW	1583.2
Code WordA	AAC/TW Conductor Size
McKinley/TW	761.5
Orchid/TW	636.0
Adams/TW	3006.2
Rainer/TW	918.8
Marigold/TW	1113.0
Trillium/TW	3000.0
Cosmos/TW	477.0
Powell/TW	2093.6
Cowslip/TW	2000.0
Lupine/TW	2500.0
Helens/TW	1123.1
ICS Codes	29.240.20 - Power transmission and distribution lines
	2844.5