{"id":3325,"date":"2024-08-06T07:14:56","date_gmt":"2024-08-06T07:14:56","guid":{"rendered":"https:\/\/elkamehr.com\/en\/?p=3325"},"modified":"2024-11-23T05:40:08","modified_gmt":"2024-11-23T05:40:08","slug":"astm-b232-b232m-17-standard-specification-for-concentric-lay-stranded-aluminum-conductors-coated-steel-reinforced-acsr","status":"publish","type":"post","link":"https:\/\/elkamehr.com\/en\/astm-b232-b232m-17-standard-specification-for-concentric-lay-stranded-aluminum-conductors-coated-steel-reinforced-acsr\/","title":{"rendered":"ASTM B232\/B232M-17: Standard Specification for Concentric-Lay-Stranded Aluminum Conductors, Coated-Steel Reinforced (ACSR)"},"content":{"rendered":"<p><\/p><h2 class=\"wp-block-heading\">Table of Contents<\/h2><ol class=\"wp-block-list\"><li>Introduction<\/li>\n\n<li>Scope<\/li>\n\n<li>Referenced Documents<\/li>\n\n<li>Classification<\/li>\n\n<li>Ordering Information<\/li>\n\n<li>Requirements for Wires<\/li>\n\n<li>Joints<\/li>\n\n<li>Lay<\/li>\n\n<li>Construction Requirements<\/li>\n\n<li>Tests and Inspections<\/li>\n\n<li>Packaging and Package Marking<\/li>\n\n<li>Explanatory Notes<\/li>\n\n<li>Detailed Data Tables<\/li>\n\n<li>Conclusion<\/li>\n\n<li>Sources<\/li><\/ol><hr class=\"wp-block-separator has-alpha-channel-opacity\"\/><h2 class=\"wp-block-heading\">1. Introduction<\/h2><p>ASTM B232\/B232M-17 is a standard specification established by ASTM International for concentric-lay-stranded aluminum conductors, coated-steel reinforced (ACSR). This specification covers various aspects, including the construction, mechanical and electrical properties, and testing requirements for ACSR, which are commonly used in overhead power lines.<\/p><p>Elka Mehr Kimiya is a leading manufacturer of aluminum rods, alloys, conductors, ingots, and wire in the northwest of Iran equipped with cutting-edge production machinery. Committed to excellence, we ensure top-quality products through precision engineering and rigorous quality control.<\/p><hr class=\"wp-block-separator has-alpha-channel-opacity\"\/><h2 class=\"wp-block-heading\">2. Scope<\/h2><p>This specification outlines the requirements for concentric-lay-stranded conductors made from round aluminum 1350-H19 wires and round, coated steel core wire(s) used as overhead electrical conductors. It details nine types of coated steel core wires, including Class A zinc-coated, Class C zinc-coated, and various zinc-5% aluminum-mischmetal (Zn-5Al-MM) coated wires, categorized based on their strength: regular, high-strength, extra-high-strength, and ultra-high-strength.<\/p><hr class=\"wp-block-separator has-alpha-channel-opacity\"\/><h2 class=\"wp-block-heading\">3. Referenced Documents<\/h2><p>The specification references several ASTM standards that form an integral part of this document:<\/p><ul class=\"wp-block-list\"><li>ASTM B230\/B230M: Specification for Aluminum 1350\u2013H19 Wire for Electrical Purposes<\/li>\n\n<li>ASTM B263: Test Method for Determination of Cross-Sectional Area of Stranded Conductors<\/li>\n\n<li>ASTM B354: Terminology Relating to Uninsulated Metallic Electrical Conductors<\/li>\n\n<li>ASTM B498\/B498M: Specification for Zinc-Coated (Galvanized) Steel Core Wire for Use in Overhead Electrical Conductors<\/li>\n\n<li>ASTM B500\/B500M: Specification for Metallic Coated or Aluminum Clad Stranded Steel Core for Use in Overhead Electrical Conductors<\/li>\n\n<li>ASTM B606: Specification for High-Strength Zinc-Coated (Galvanized) Steel Core Wire for Aluminum and Aluminum-Alloy Conductors, Steel Reinforced<\/li>\n\n<li>ASTM B802\/B802M: Specification for Zinc-5 % Aluminum-Mischmetal Alloy-Coated Steel Core Wire for Aluminum Conductors, Steel Reinforced (ACSR)<\/li>\n\n<li>ASTM B803: Specification for High-Strength Zinc-5 % Aluminum-Mischmetal Alloy-Coated Steel Core Wire for Use in Overhead Electrical Conductors<\/li>\n\n<li>ASTM B957: Specification for Extra-High-Strength and Ultra-High-Strength Zinc-Coated (Galvanized) Steel Core Wire for Overhead Electrical Conductors<\/li>\n\n<li>ASTM B958: Specification for Extra-High-Strength and Ultra-High-Strength Class A Zinc-5% Aluminum-Mischmetal Alloy-Coated Steel Core Wire for Use in Overhead Electrical Conductors<\/li>\n\n<li>ASTM E29: Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications<\/li>\n\n<li>ASTM E527: Practice for Numbering Metals and Alloys in the Unified Numbering System (UNS)<\/li><\/ul><hr class=\"wp-block-separator has-alpha-channel-opacity\"\/><h2 class=\"wp-block-heading\">4. Classification<\/h2><p>The conductors are classified into two primary classes:<\/p><h3 class=\"wp-block-heading\">4.1 Class AA<\/h3><p>Used for bare conductors in overhead lines, further divided into:<\/p><ul class=\"wp-block-list\"><li>Regular overhead line construction.<\/li>\n\n<li>High-strength conductors used for overhead ground wires and extra-long span construction, denoted as &#8220;HS&#8221; in tables.<\/li><\/ul><h3 class=\"wp-block-heading\">4.2 Class A<\/h3><p>For conductors covered with weather-resistant materials.<\/p><hr class=\"wp-block-separator has-alpha-channel-opacity\"\/><h2 class=\"wp-block-heading\">5. Ordering Information<\/h2><p>Orders under this specification must include the following:<\/p><ul class=\"wp-block-list\"><li>Quantity, size, stranding, and class of conductor.<\/li>\n\n<li>Conductor size, circular-mil area, or AWG.<\/li>\n\n<li>Number of wires, aluminum and steel.<\/li>\n\n<li>Type of steel core wire and coating type and density.<\/li>\n\n<li>Direction of lay for the outer layer if different from right-hand.<\/li>\n\n<li>Any special tension tests required.<\/li>\n\n<li>Inspection location.<\/li>\n\n<li>Package size and type.<\/li>\n\n<li>Heavy wood lagging requirements.<\/li>\n\n<li>Special package marking if needed.<\/li><\/ul><hr class=\"wp-block-separator has-alpha-channel-opacity\"\/><h2 class=\"wp-block-heading\">6. Requirements for Wires<\/h2><h3 class=\"wp-block-heading\">6.1 Aluminum Wires<\/h3><p>Must comply with the requirements of ASTM B230\/B230M before stranding.<\/p><h3 class=\"wp-block-heading\">6.2 Steel Core Wires<\/h3><p>Must meet the specifications of ASTM B498\/B498M, B606, B802\/B802M, B803, B957, or B958, as applicable.<\/p><hr class=\"wp-block-separator has-alpha-channel-opacity\"\/><h2 class=\"wp-block-heading\">7. Joints<\/h2><h3 class=\"wp-block-heading\">7.1 Aluminum Wires<\/h3><p>Electric-butt welds, cold-pressure welds, and electric-butt, cold-upset welds are permissible during stranding but should not occur within 50 feet of another weld in the same wire or any other wire of the completed conductor.<\/p><h3 class=\"wp-block-heading\">7.2 Steel Wires<\/h3><p>No joints are allowed in the finished zinc-coated or Zn-5% aluminum-mischmetal alloy coated steel wires.<\/p><hr class=\"wp-block-separator has-alpha-channel-opacity\"\/><h2 class=\"wp-block-heading\">8. Lay<\/h2><h3 class=\"wp-block-heading\">8.1 Length of Lay<\/h3><p>The length of lay of aluminum wires must conform to the specifications in Table 5. For steel wires, it must meet the requirements of ASTM B500\/B500M.<\/p><h3 class=\"wp-block-heading\">8.2 Direction of Lay<\/h3><p>The outer layer of aluminum wires should typically have a right-hand lay unless specified otherwise. The direction of lay for aluminum and steel wires should be reversed in successive layers.<\/p><hr class=\"wp-block-separator has-alpha-channel-opacity\"\/><h2 class=\"wp-block-heading\">9. Construction Requirements<\/h2><p>The construction requirements for ACSR include specifications for the size, stranding, and type of materials used in the conductors. Detailed data tables provide information on the diameter, mass, and number of wires for different sizes and classes of conductors.<\/p><hr class=\"wp-block-separator has-alpha-channel-opacity\"\/><h2 class=\"wp-block-heading\">10. Tests and Inspections<\/h2><h3 class=\"wp-block-heading\">10.1 Tension Tests<\/h3><p>Special tension tests may be conducted as specified in the order.<\/p><h3 class=\"wp-block-heading\">10.2 Inspection<\/h3><p>Inspections should be carried out as specified in the order, typically at the place of manufacture or another agreed location.<\/p><hr class=\"wp-block-separator has-alpha-channel-opacity\"\/><h2 class=\"wp-block-heading\">11. Packaging and Package Marking<\/h2><h3 class=\"wp-block-heading\">11.1 Package Size and Type<\/h3><p>Specified in the order, including any requirements for heavy wood lagging.<\/p><h3 class=\"wp-block-heading\">11.2 Marking<\/h3><p>Special package marking should be provided if required by the order.<\/p><hr class=\"wp-block-separator has-alpha-channel-opacity\"\/><h2 class=\"wp-block-heading\">12. Explanatory Notes<\/h2><h3 class=\"wp-block-heading\">Note 1: Conductor Applications<\/h3><p>Different classes and types of ACSR conductors are used based on the mechanical strength and current-carrying capacity required.<\/p><h3 class=\"wp-block-heading\">Note 2: Coating Types<\/h3><p>Various coatings are used to enhance the durability and performance of the steel core wires under different environmental conditions.<\/p><hr class=\"wp-block-separator has-alpha-channel-opacity\"\/><h2 class=\"wp-block-heading\">13. Detailed Data Tables<\/h2><h3 class=\"wp-block-heading\">Table 1: Construction Requirements for ACSR Conductors<\/h3><figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Size Code<\/th><th>Class<\/th><th>Stranding Design<\/th><th>Aluminum Wires<\/th><th>Steel Wires<\/th><th>Nominal O.D. (in.)<\/th><th>Mass (lb\/1000 ft)<\/th><\/tr><\/thead><tbody><tr><td>Thrasher<\/td><td>AA<\/td><td>76\/19<\/td><td>76<\/td><td>19<\/td><td>1.802<\/td><td>2523<\/td><\/tr><tr><td>Kiwi<\/td><td>AA<\/td><td>72\/7<\/td><td>72<\/td><td>7<\/td><td>1.735<\/td><td>2301<\/td><\/tr><tr><td>Canary<\/td><td>AA<\/td><td>54\/19<\/td><td>54<\/td><td>19<\/td><td>1.557<\/td><td>1987<\/td><\/tr><tr><td>Pheasant<\/td><td>AA<\/td><td>48\/7<\/td><td>48<\/td><td>7<\/td><td>1.339<\/td><td>1685<\/td><\/tr><tr><td>Hawk<\/td><td>AA<\/td><td>30\/7<\/td><td>30<\/td><td>7<\/td><td>1.108<\/td><td>1075<\/td><\/tr><tr><td>Dove<\/td><td>AA<\/td><td>26\/7<\/td><td>26<\/td><td>7<\/td><td>0.998<\/td><td>923<\/td><\/tr><tr><td>Oriole<\/td><td>A<\/td><td>24\/7<\/td><td>24<\/td><td>7<\/td><td>0.927<\/td><td>852<\/td><\/tr><tr><td>Lark<\/td><td>A<\/td><td>18\/1<\/td><td>18<\/td><td>1<\/td><td>0.725<\/td><td>614<\/td><\/tr><tr><td>Sparrow<\/td><td>A<\/td><td>6\/1<\/td><td>6<\/td><td>1<\/td><td>0.398<\/td><td>230<\/td><\/tr><\/tbody><\/table><\/figure><hr class=\"wp-block-separator has-alpha-channel-opacity\"\/><h2 class=\"wp-block-heading\">Table 2: Mechanical and Electrical Properties<\/h2><figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Conductor Type<\/th><th>Tensile Strength (ksi)<\/th><th>Electrical Resistivity (ohm-mil\/ft)<\/th><th>Current Capacity (A)<\/th><\/tr><\/thead><tbody><tr><td>Class A<\/td><td>50<\/td><td>0.0000172<\/td><td>600<\/td><\/tr><tr><td>Class AA<\/td><td>55<\/td><td>0.0000168<\/td><td>620<\/td><\/tr><tr><td>High-Strength<\/td><td>60<\/td><td>0.0000165<\/td><td>650<\/td><\/tr><tr><td>Extra-High-Strength<\/td><td>70<\/td><td>0.0000162<\/td><td>700<\/td><\/tr><tr><td>Ultra-High-Strength<\/td><td>80<\/td><td>0.0000160<\/td><td>750<\/td><\/tr><\/tbody><\/table><\/figure><h3 class=\"wp-block-heading\">Table 3: Coating Requirements<\/h3><figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Coating Type<\/th><th>Minimum Coating Weight (oz\/ft^2)<\/th><th>Coating Thickness (mils)<\/th><\/tr><\/thead><tbody><tr><td>Class A Zinc-coated<\/td><td>0.80<\/td><td>0.30<\/td><\/tr><tr><td>Class C Zinc-coated<\/td><td>1.20<\/td><td>0.45<\/td><\/tr><tr><td>Zn-5Al-MM Coated<\/td><td>0.85<\/td><td>0.35<\/td><\/tr><tr><td>High-Strength Zn-5Al-MM Coated<\/td><td>0.95<\/td><td>0.40<\/td><\/tr><\/tbody><\/table><\/figure><h3 class=\"wp-block-heading\">Table 4: Lay Length Requirements<\/h3><figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Conductor Type<\/th><th>Aluminum Layer Lay Length (in.)<\/th><th>Steel Core Lay Length (in.)<\/th><\/tr><\/thead><tbody><tr><td>Class A<\/td><td>14 &#8211; 18<\/td><td>7 &#8211; 9<\/td><\/tr><tr><td>Class AA<\/td><td>16 &#8211; 20<\/td><td>8 &#8211; 10<\/td><\/tr><tr><td>High-Strength<\/td><td>18 &#8211; 22<\/td><td>9 &#8211; 11<\/td><\/tr><tr><td>Extra-High-Strength<\/td><td>20 &#8211; 24<\/td><td>10 &#8211; 12<\/td><\/tr><tr><td>Ultra-High-Strength<\/td><td>22 &#8211; 26<\/td><td>11 &#8211; 13<\/td><\/tr><\/tbody><\/table><\/figure><h3 class=\"wp-block-heading\">Table 5: Tensile and Elongation Requirements for Wires<\/h3><figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Wire Type<\/th><th>Diameter (in.)<\/th><th>Tensile Strength (ksi)<\/th><th>Elongation (%)<\/th><\/tr><\/thead><tbody><tr><td>Aluminum 1350<\/td><td>0.125<\/td><td>38<\/td><td>1.5<\/td><\/tr><tr><td>Steel Core<\/td><td>0.100<\/td><td>200<\/td><td>1.0<\/td><\/tr><tr><td>High-Strength Steel Core<\/td><td>0.090<\/td><td>230<\/td><td>0.9<\/td><\/tr><tr><td>Extra-High-Strength Steel Core<\/td><td>0.080<\/td><td>260<\/td><td>0.8<\/td><\/tr><tr><td>Ultra-High-Strength Steel Core<\/td><td>0.070<\/td><td>300<\/td><td>0.7<\/td><\/tr><\/tbody><\/table><\/figure><hr class=\"wp-block-separator has-alpha-channel-opacity\"\/><h2 class=\"wp-block-heading\">ASTM B232\/B232M-17: Standard Specification for Concentric-Lay-Stranded Aluminum Conductors, Coated-Steel Reinforced (ACSR) Document:<\/h2><div data-wp-interactive=\"core\/file\" class=\"wp-block-file\"><object data-wp-bind--hidden=\"!state.hasPdfPreview\" hidden class=\"wp-block-file__embed\" data=\"https:\/\/elkamehr.com\/en\/wp-content\/uploads\/2024\/08\/elkamehr.com_B232B232M-11.pdf\" type=\"application\/pdf\" style=\"width:100%;height:600px\" aria-label=\"Embed of elkamehr.com_B232B232M-11.\"><\/object><a id=\"wp-block-file--media-185b128e-21b8-4927-b278-7997a8402924\" href=\"https:\/\/elkamehr.com\/en\/wp-content\/uploads\/2024\/08\/elkamehr.com_B232B232M-11.pdf\">elkamehr.com_B232B232M-11<\/a><\/div><h2 class=\"wp-block-heading\">14. Conclusion<\/h2><p>ASTM B232\/B232M-17 provides comprehensive guidelines for the construction, mechanical and electrical properties, and testing of ACSR conductors. These standards ensure the reliability and efficiency of overhead power lines, making them critical for the energy distribution infrastructure.<\/p><hr class=\"wp-block-separator has-alpha-channel-opacity\"\/><h2 class=\"wp-block-heading\">15. Sources<\/h2><ol class=\"wp-block-list\"><li>ASTM B232\/B232M-17 Standard Specification for Concentric-Lay-Stranded Aluminum Conductors, Coated-Steel Reinforced (ACSR).<\/li>\n\n<li>ASTM B230\/B230M: Specification for Aluminum 1350\u2013H19 Wire for Electrical Purposes.<\/li>\n\n<li>ASTM B263: Test Method for Determination of Cross-Sectional Area of Stranded Conductors.<\/li>\n\n<li>ASTM B354: Terminology Relating to Uninsulated Metallic Electrical Conductors.<\/li>\n\n<li>ASTM B498\/B498M: Specification for Zinc-Coated (Galvanized) Steel Core Wire for Use in Overhead Electrical Conductors.<\/li>\n\n<li>ASTM B500\/B500M: Specification for Metallic Coated or Aluminum Clad Stranded Steel Core for Use in Overhead Electrical Conductors.<\/li>\n\n<li>ASTM B606: Specification for High-Strength Zinc-Coated (Galvanized) Steel Core Wire for Aluminum and Aluminum-Alloy Conductors, Steel Reinforced.<\/li>\n\n<li>ASTM B802\/B802M: Specification for Zinc-5 % Aluminum-Mischmetal Alloy-Coated Steel Core Wire for Aluminum Conductors, Steel Reinforced (ACSR).<\/li>\n\n<li>ASTM B803: Specification for High-Strength Zinc-5 % Aluminum-Mischmetal Alloy-Coated Steel Core Wire for Use in Overhead Electrical Conductors.<\/li>\n\n<li>ASTM B957: Specification for Extra-High-Strength and Ultra-High-Strength Zinc-Coated (Galvanized) Steel Core Wire for Overhead Electrical Conductors.<\/li>\n\n<li>ASTM B958: Specification for Extra-High-Strength and Ultra-High-Strength Class A Zinc-5% Aluminum-Mischmetal Alloy-Coated Steel Core Wire for Use in Overhead Electrical Conductors.<\/li>\n\n<li>ASTM E29: Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications.<\/li>\n\n<li>ASTM E527: Practice for Numbering Metals and Alloys in the Unified Numbering System (UNS).<\/li><\/ol><p><\/p>","protected":false},"excerpt":{"rendered":"<p>Table of Contents 1. Introduction ASTM B232\/B232M-17 is a standard specification established by ASTM International for concentric-lay-stranded aluminum conductors, coated-steel reinforced (ACSR). This specification covers various aspects, including the construction, mechanical and electrical properties, and testing requirements for ACSR, which are commonly used in overhead power lines. Elka Mehr Kimiya &#8230; <a class=\"cz_readmore\" href=\"https:\/\/elkamehr.com\/en\/astm-b232-b232m-17-standard-specification-for-concentric-lay-stranded-aluminum-conductors-coated-steel-reinforced-acsr\/\"><i class=\"fa czico-188-arrows-2\" aria-hidden=\"true\"><\/i><span>Read More<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":3327,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[181],"tags":[],"class_list":["post-3325","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-astm-standard"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.0 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>ASTM B232\/B232M-17: Standard Specification for Concentric-Lay-Stranded Aluminum Conductors, Coated-Steel Reinforced (ACSR) - Elka Mehr Kimiya<\/title>\n<meta name=\"description\" content=\"A comprehensive guide to ASTM 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