ASTM B231/B231M-16(2021) - 1.10.2021
 
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 Note 1 and Note 2).

1.2?The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard.

1.2.1?For density, resistivity and temperature, the values stated in SI units are to be regarded as standard.

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/H35.1M. Aluminum 1350 corresponds to Unified Numbering System A91350 in accordance with Practice E527.

Note 3:?Sealed conductors that are intended to prevent longitudinal water propagation and are further covered/insulated are also permitted within the guidelines of this specification.

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.

 
2. Referenced Documents

B609/B609M-12(2021)

Standard Specification for Aluminum 1350 Round Wire, Annealed and Intermediate Tempers, for Electrical Purposes

B230/B230M-22

Standard Specification for Aluminum 1350–H19 Wire for Electrical Purposes

B354-23

Standard Terminology Relating to Uninsulated Metallic Electrical Conductors

E29-22

Standard Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications

E527-23

Standard Practice for Numbering Metals and Alloys in the Unified Numbering System (UNS)

ANSI H35.1

B193-20

Standard Test Method for Resistivity of Electrical Conductor Materials

B263-04

Standard Test Method for Determination of Cross-Sectional Area of Stranded Conductors

B682-01(2016)

Standard Specification for Standard Metric Sizes of Electrical Conductors

Publication 50

Code Words for Overhead Aluminum Electrical Conductors

American National Standard Alloy and Temper Designation Systems for Aluminum [Metric]

NBS

Handbook 100Copper Wire Tables