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Description of ASTM-B701 2013ASTM B701 / B701M - 13Standard Specification for Concentric-Lay-Stranded Self-Damping Aluminum Conductors, Steel Reinforced (ACSR/SD)Active Standard ASTM B701 / B701M | Developed by Subcommittee: B01.07 Book of Standards Volume: 02.03 ASTM B701 / B701MAbstract This specification covers concentric-lay-stranded self-damping aluminum conductors, steel-reinforced, and its component wires for use as overhead electrical conductors. The tensile strength and elongation requirements of the round and trapezoidal wires shall be the same except for the shape and diameter tolerance. Joints shall not be made in the finished steel wires. The lay factor and direction are specified. The strength and electrical resistance of a complete conductor are calculated. Tests for mechanical and electrical properties of aluminum and steel core wires shall be made before stranding. Gap dimensions shall be measured during fabrication of the conductor. This abstract is a brief summary of the referenced standard. It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application. ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date. 1. Scope 1.1 This specification covers concentric-lay-stranded self-damping aluminum conductor, steel-reinforced (ACSR/SD), and its component wires for use as overhead electrical conductors (Explanatory Notes 1 and 2 ). 1.2 The values stated in inch-pound or SI units are to be regarded separately as standard. Each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the specification. For conductor sizes designated by AWG or kcmil, the requirements in SI units have been numerically converted from corresponding values stated or derived in inch-pound units. For conductor sizes designated by SI units only, the requirements are stated or derived in SI units. 1.2.1 For density, resistivity, and temperature, the values stated in SI units are to be regarded as standard.
Note 1 ACSR/SD is designed to control aeolian vibration by integral damping. The conductors consist of a central
core of a round steel wire or wires surrounded by two layers of trapezoidal aluminum 1350-H19 wires or two layers of trapezoidal aluminum 1350-H19 wires and one layer of round aluminum
1350-H19 wires ( Fig. 1 ). The trapezoidal-wire layers are separated from each other and from the steel core by two small annular gaps that provide
the conductors self-damping characteristics. The round aluminum wires are in tight layer contact between themselves and the underlying trapezoidal wire layer. Different strandings of the
same size of conductor are identified by type, which is the approximate ratio of steel area to aluminum area, expressed in percent ( Table 1 and
Table 2 ).
Note 2 The aluminum and temper designations conform to ANSI Standard H?35.1. Aluminum 1350 corresponds to UNS
A91350 in accordance with Practice E527 .
1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
ASTM Standards B230/B230M Specification for Aluminum 1350-H19 Wire for Electrical Purposes B232/B232M Specification for Concentric-Lay-Stranded Aluminum Conductors, Coated-Steel Reinforced (ACSR) B263 Test Method for Determination of Cross-Sectional Area of Stranded Conductors B341/B341M Specification for Aluminum-Coated (Aluminized) Steel Core Wire for Aluminum Conductors, Steel Reinforced (ACSR/AZ) B354 Terminology Relating to Uninsulated Metallic Electrical Conductors B498/B498M Specification for Zinc-Coated (Galvanized) Steel Core Wire for Use in Overhead Electrical Conductors B502 Specification for Aluminum-Clad Steel Core Wire for Use in Overhead Electrical Aluminum Conductors B549 Specification for Concentric-Lay-Stranded Aluminum Conductors, Aluminum-Clad Steel Reinforced for Use in Overhead Electrical Conductors B606 Specification for High-Strength Zinc-Coated (Galvanized) Steel Core Wire for Aluminum and Aluminum-Alloy Conductors, Steel Reinforced B802/B802M Specification for Zinc-5 % Aluminum-Mischmetal Alloy-Coated Steel Core Wire for Aluminum Conductors, Steel Reinforced (ACSR) B803 Specification for High-Strength Zinc-5 % Aluminum-Mischmetal Alloy-Coated Steel Core Wire for Use in Overhead 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 ANSIH35.1 American National Standard Alloy and Temper Designation Systems for AluminumNIST Documents NBSHandbook100 --Copper Wire Tables of the National Bureau of StandardsAluminum Association Documents Publication50, Code Words for Overhead Aluminum Electrical ConductorsKeywords aluminum electrical conductors; concentric-lay stranded aluminum conductors; concentric-lay stranded aluminum conductors, steel-reinforced; concentric-lay stranded self-damping aluminum conductors, steel reinforced; electrical conductors; electrical conductorsaluminum; self-damping conductors; steel reinforced stranded aluminum conductors; stranded aluminum conductors; ICS Code ICS Number Code 29.240.20 (Power transmission and distribution lines) DOI: 10.1520/B0701_B0701M ASTM International is a member of CrossRef. ASTM B701 / B701MThe following editions for this book are also available...This book also exists in the following packages...Subscription InformationMADCAD.com ASTM Standards subscriptions are annual and access is unlimited concurrency based (number of people that can access the subscription at any given time) from single office location. For pricing on multiple office location ASTM Standards Subscriptions, please contact us at info@madcad.com or +1 800.798.9296.
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About ASTMASTM International, formerly known as the American Society for Testing and Materials (ASTM), is a globally recognized leader in the development and delivery of international voluntary consensus standards. Today, some 12,000 ASTM standards are used around the world to improve product quality, enhance safety, facilitate market access and trade, and build consumer confidence. ASTM’s leadership in international standards development is driven by the contributions of its members: more than 30,000 of the world’s top technical experts and business professionals representing 150 countries. Working in an open and transparent process and using ASTM’s advanced electronic infrastructure, ASTM members deliver the test methods, specifications, guides, and practices that support industries and governments worldwide. |
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