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ASTM B500/B500M-24

Current Revision

Standard Specification for Metallic Coated or Aluminum Clad Stranded Steel Core for Use in Overhead Electrical Conductors

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1.1 This specification covers 7-wire, 19-wire, 37-wire, and 61-wire zinc-coated (galvanized), zinc-5 % aluminum-mischmetal alloy-coated or aluminum clad stranded steel core intended for use in overhead electrical conductors.

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.

1.3 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.


This specification covers zinc-coated (galvanized), zinc-aluminum-mischmetal alloy-coated, and aluminum-coated (aluminized) stranded steel wire core inserted for use in aluminum conductors, steel reinforced (ACSR). Prior to stranding, the metallic coated steel wire to be used in the production of the stranded core shall meet all of the requirements of the appropriate specification. Requirements for (1) coated steel wire joints, (2) stranding of the core such as lay length and lay direction, (3) construction of ACSR, and (4) tensile properties of stranded core are detailed. The standard stranded core lengths and methods of determining rated strength and calculating loads are given.


SDO ASTM: ASTM International
Document Number B500
Publication Date April 1, 2024
Language en - English
Page Count 3
Revision Level 24
Supercedes
Committee B01.05
Publish Date Document Id Type View
April 1, 2024 B0500_B0500M-24 Revision
May 1, 2022 B0500_B0500M-22 Revision
April 1, 2012 B0500_B0500M-12 Revision
Oct. 1, 2010 B0500_B0500M-10 Revision
March 15, 2009 B0500_B0500M-09 Revision
Sept. 10, 1998 B0500_B0500M-98 Revision
March 1, 2018 B0500_B0500M-12R18 Reaffirmation
Sept. 10, 1998 B0500_B0500M-98R02 Reaffirmation