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Standard Specification for Shaped Wire Compact Concentric-Lay-Stranded Aluminum Conductors (AAC/TW)
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NORM herausgegeben am 1.3.2019
Bezeichnung normen: ASTM B778-19
Anmerkung: UNGÜLTIG
Ausgabedatum normen: 1.3.2019
SKU: NS-939933
Zahl der Seiten: 4
Gewicht ca.: 12 g (0.03 Pfund)
Land: Amerikanische technische Norm
Kategorie: Technische Normen ASTM
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 Number Code 29.240.20 (Power transmission and distribution lines)
1. 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.
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.
1.3 This 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. |
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2. Referenced Documents | ||||||||||||||||
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