ASTM B231/B231M-99
Standard Specification for Concentric-Lay-Stranded Aluminum 1350 Conductors
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1. Scope
1.1 This specification covers aluminum 1350-H19 (extra hard), 1350-H16 or -H26 ( 3/4 hard), 1350-H14 or -H24 (1/2 hard), and 1350-H142 or -H242 (1/2 hard), bare concentric-lay-stranded conductors constructed with a straight round central wire surrounded by one or more layers of helically layed wires. The conductors are for general use for electrical purposes (Explanatory Notes 1 and 2).
1.2 The SI values for resistivity are regarded as standard. For all other properties the inch-pound units are regarded as standard and the SI units may be approximate.
Note 1-Prior to 1975, aluminum 1350 was designated as EC aluminum. Note 2-The aluminum and temper designations conform to ANSI Standard H35.1. Aluminum 1350 corresponds to Unified Numbering System A91350 in accordance with Practice E527. Note 3-A complete metric companion to Specification B231 has been developed-Specification B231M. Note 4-Sealed conductors that are intended to prevent longitudinal water propagation and are further covered/insulated are also permitted within the guidelines of this specification.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
ASTM Standards
B193 Test Method for Resistivity of Electrical Conductor Materials
B230/B230M Specification for Aluminum 1350-H19 Wire for Electrical Purposes
B263 Test Method for Determination of Cross-Sectional Area of Stranded Conductors
B354 Terminology Relating to Uninsulated Metallic Electrical Conductors
B609/B609M Specification for Aluminum 1350 Round Wire, Annealed and Intermediate Tempers, for Electrical Purposes
B682 Specification for Metric Sizes of Electrical Conductors
E29 Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications
E527 Practice for Numbering Metals and Alloys in the Unified Numbering System (UNS)
ANSI Documents
ANSI H35.1M American National Standard Alloy and Temper Designation Systems for Aluminum [Metric]NIST Document
NBS Handbook 100--Copper Wire TablesAluminum Association Document
Publication 50, Code Words for Overhead Aluminum Electrical ConductorsICS Code
ICS Number Code 29.240.20 (Power transmission and distribution lines)
Referencing This Standard
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DOI: 10.1520/B0231_B0231M-99
Citation Format
ASTM B231 / B231M-99, Standard Specification for Concentric-Lay-Stranded Aluminum 1350 Conductors, ASTM International, West Conshohocken, PA, 1999, www.astm.org
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