ASTM B 778 : 2022
Current
The latest, up-to-date edition.
Standard Specification for Shaped Wire Compact Concentric-Lay-Stranded Aluminum Conductors (AAC/TW)
Hardcopy , PDF
English
30-01-2023
Important note : All end users must be registered with an Account prior to user licenses being assigned.| Committee |
B 01
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| DocumentType |
Standard
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| Pages |
4
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| PublisherName |
American Society for Testing and Materials
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| Status |
Current
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| Supersedes |
1.1This 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).
1.2The 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.
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.
1.3This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
| ASTM B 1006 : 2017 | Standard Specification for Electrical Overhead Conductor Code Word Names |
| ASTM B 354 : 2023 | Standard Terminology Relating to Uninsulated Metallic Electrical Conductors |
| ASTM E 527 : 2023 | Standard Practice for Numbering Metals and Alloys in the Unified Numbering System (UNS) |
| ASTM E 527 : 2016 | Standard Practice for Numbering Metals and Alloys in the Unified Numbering System (UNS) |
| ASTM B 1006 : 2017 : R2023 | Standard Specification for Electrical Overhead Conductor Code Word Names |
| ASTM B 354 : 2019 | Standard Terminology Relating to Uninsulated Metallic Electrical Conductors |
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