Abstract
This specification covers shaped wire compact concentric-lay-stranded aluminum conductor, steel-reinforced (ACSR/TW) and its component wires for use as overhead electrical conductors. Requirements for (1) wire stranding (2) tensile strength and elongation, (3) joints such as electric-butt welds, electric-butt cold-upset welds, or cold-pressure welds, and (4) lay length, diameter, direction, and factor are detailed. The construction requirements include: nominal aluminum cross sectional area, conductor type, nominal number of aluminum wires, number of layers, number and diameter of the steel core wire, mass per unit length, rated strength, and outside diameter of the shaped wire compact. The methods of determining mass per unit length, cross-section, and electrical resistance of the stranded conductor are given. Mechanical and electrical tests shall be performed before stranding.
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 shaped wire compact concentric-lay-stranded aluminum conductor, steel-reinforced (ACSR/TW) and its component wires for use as overhead electrical conductors (Explanatory Note 1 and Note 2). 1.2 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard. Note 1??? ACSR/TW is designed to increase the aluminum area for a given diameter of conductor by the use of trapezoidally shaped wires (TW). The conductors consist of a central core of round steel wire(s) surrounded by two or more layers of trapezoidal aluminum 1350-H19 wires. 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, Table 2 and Table 3). For the purpose of this specification, the sizes listed in Table 1 and Table 2 are tabulated on the basis of the finished conductor having an area or outside diameter equal to that of specific sizes of standard ACSR so as to facilitate conductor selection.TABLE 1 Construction Requirements for Shaped Wire Compact Concentric-Lay-Stranded Aluminum Conductors, Coated Steel Reinforced Size to Have Area Equal to ACSR, Class AA | ACSR/TW Conductor
Size | Size and Stranding of ACSR with Equal Area | Number of Aluminum Wires | Number of Layers | Steel Core Stranding | Mass per Unit Length,A
lb/1000 ft | Rated
Strength,
1000 lbB | Nominal
Outside
Diameter, in. | | kcmil | Type | kcmil | Stranding | Number of Wires | Diameter,
in. | | 336.4 | 6 | 336.4 | 18/1 | 14 | 2 | 1 | 0.1367 | 365 | 8.6 | 0.63 | | 477.0 | 13 | 477.0 | 24/7 | 18 | 2 | 7 | 0.0940 | 613 | 17.2 | 0.78 | | 477.0 | 16 | 477.0 | 26/7 | 18 | 2 | 7 | 0.1053 | 655 | 19.4 | 0.79 | | 556.5 | 13 | 556.5 | 24/7 | 18 | 2 | 7 | 0.1015 | 715 | 20.0 | 0.84 | | 556.5 | 16 | 556.5 | 26/7 | 20 | 2 | 7 | 0.1138 | 765 | 22.6 | 0.85 | | 636.0 | 3 | 636.0 | 36/1 | 27 | 3 | 1 | 0.1329 | 646 | 13.5 | 0.85 | | 636.0 | 13 | 636.0 | 24/7 | 18 | 2 | 7 | 0.1085 | 816 | 22.9 | 0.89 | | 636.0 | 16 | 636.0 | 26/7 | 20 | 2 | 7 | 0.1216 | 874 | 25.4 | 0.91 | | 795.0 | 7 | 795.0 | 45/7 | 17 | 2 | 7 | 0.0886 | 892 | 21.0 | 0.96 | | 795.0 | 10 | 795.0 | 22/7 | 18 | 2 | 7 | 0.1108 | 975 | 25.9 | 0.98 | | 795.0 | 13 | 795.0 | 54/7 | 20 | 2 | 7 | 0.1213 | 1021 | 28.2 | 0.99 | | 795.0 | 16 | 795.0 | 26/7 | 20 | 2 | 7 | 0.1360 | 1092 | 31.8 | 1.01 | | 954.0 | 5 | 954.0 | 42/7 | 30 | 3 | 7 | 0.0837 | 1029 | 23.7 | 1.05 | | 954.0 | 7 | 954.0 | 45/7 | 32 | 3 | 7 | 0.0971 | 1075 | 25.9 | 1.06 | | 954.0 | 13 | 954.0 | 54/7 | 20 | 2 | 7 | 0.1329 | 1226 | 33.5 | 1.08 | | 1033.5 | 5 | 1033.5 | 42/7 | 30 | 3 | 7 | 0.0871 | 1115 | 25.7 | 1.09 | | 1033.5 | 7 | 1033.5 | 45/7 | 32 | 3 | 7 | 0.1010 | 1165 | 28.1 | 1.10 | | 1033.5 | 13 | 1033.5 | 54/7 | 21 | 2 | 7 | 0.1363 | 1327 | 36.3 | 1.13 | | 1113.0 | 5 | 1113.0 | 42/7 | 30 | 3 | 7 | 0.0904 | 1201 | 27.5 | 1.13 | | 1113.0 | 7 | 1113.0 | 45/7 | 33 | 3 | 7 | 0.1049 | 1254 | 30.3 | 1.14 | | 1113.0 | 13 | 1113.0 | 54/19 | 38 | 3 | 19 | 0.0862 | 1429 | 39.1 | 1.19 | | 1192.5 | 5 | 1192.5 | 42/7 | 30 | 3 | 7 | 0.0936 | 1286 | 29.5 | 1.17 | | 1192.5 | 7 | 1192.5 | 45/7 | 33 | 3 | 7 | 0.1085 | 1343 | 32.4 | 1.18 | | 1192.5 | 13 | 1192.5 | 54/19 | 38 | 3 | 19 | 0.0892 | 1530 | 41.9 | 1.22 | | 1272.0 | 5 | 1272.0 | 42/7 | 30 | 3 | 7 | 0.0967 | 1372 | 31.4 | 1.20 | | 1272.0 | 7 | 1272.0 | 45/7 | 35 | 3 | 7 | 0.1121 | 1433 | 34.6 | 1.22 | | 1272.0 | 13 | 1272.0 | 54/19 | 39 | 3 | 19 | 0.0921 | 1632 | 44.1 | 1.26 | | 1351.5 | 7 | 1351.5 | 45/7 | 35 | 3 | 7 | 0.1155 | 1522 | 36.7 | 1.26 | | 1351.5 | 13 | 1351.5 | 54/19 | 39 | 3 | 19 | 0.0949 | 1734 | 46.8 | 1.30 | | 1431.0 | 7 | 1431.0 | 45/7 | 36 | 3 | 7 | 0.1189 | 1613 | 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
B500/B500M Specification for Metallic Coated Stranded Steel Core for Use in Overhead Electrical Conductors
B502 Specification for Aluminum-Clad Steel Core Wire for Aluminum Conductors, Aluminum-Clad Steel Reinforced
B549 Specification for Concentric-Lay-Stranded Aluminum Conductors, Aluminum-Clad Steel Reinforced (ACSR/AW)
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)
Other Documents
NBS Handbook 100--Copper Wire Tables of the National Bureau of Standards
Keywords
ICS Code
ICS Number Code 29.240.20 (Power transmission and distribution lines)
DOI: 10.1520/B0779-12
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