ASTM B 778 : 2019

Name: ASTM B 778 : 2019
Brand: ASTM
Price: 55.10 GBP

Superseded

View Superseded by

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

Available format(s)

Hardcopy , PDF

Superseded date

03-02-2023

Language(s)

English

Published date

21-03-2019

Publisher

American Society for Testing and Materials

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

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.

Committee	B 01
DocumentType	Standard
Pages	4
ProductNote	This standard refers to : ASTM B354 - 19
PublisherName	American Society for Testing and Materials
Status	Superseded
SupersededBy	ASTM B 778 : 2022
Supersedes	ASTM B 778 : 2014

ASTM E 29 : 2013 : R2019	Standard Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications
ASTM E 29 : 2002	Standard Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications
ASTM B 230/B230M : 2007 : R2016	Standard Specification for Aluminum 1350–H19 Wire for Electrical Purposes
ASTM B 1006 : 2017	Standard Specification for Electrical Overhead Conductor Code Word Names
ASTM B 230/B230M : 2007 : R2021	Standard Specification for Aluminum 1350–H19 Wire for Electrical Purposes
ASTM B 230/B230M : 2022	Standard Specification for Aluminum 1350–H19 Wire for Electrical Purposes
ASTM E 29 : 2022	Standard Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications