Bare Overhead Conductors

Bare Overhead Conductors AAC, ACSR, ACSR II A global cable expert

Bare Overhead Conductors Nexans is a diversified wire and cable manufacturer. Nexans has been designing, manufacturing and delivering cables to customers in North America since 1911. Major utilities, distributors and contractors recognize Nexans as a quality supplier and a technology leader. Substantial investment in research and development of product and process technologies continuously reinforces our commitment to excellence. Nexans offers a combination of sales, design, manufacturing and quality control which ensures that all relevant standards of design and service are met. With our multi-plant manufacturing base, we are able to produce all standard types and sizes of bare overhead conductors, as well as a wide range of non-standard conductors, for virtually every application. Applications The bare overhead conductors described in this brochure are suitable for installation in all practical spans on transmission towers, wood poles and other structures. Installations range from long-distance EHV transmission lines to sub-service spans at distribution or utilization voltages on private premises. The choice of conductor size, type and strength should take into account factors such as electrical load, voltage regulation, corona losses, ice and wind loading, extreme temperatures and vibration. Nexans is prepared to assist in the evaluation of these factors as they relate to the design of a transmission or distribution line. Specifications Nexans bare overhead conductors are designed, manufactured and tested in accordance with the following specifications: ASTM B 231 Standard Specification for Concentric-Lay-Stranded Aluminum 1350 Conductors ASTM B 232 Standard Specification for Concentric-Lay-Stranded Aluminum Conductors, Coated-Steel Reinforced (ACSR) Packaging is provided as per Aluminum Association Packaging Standards for Aluminum Conductor and ACSR, Sixth Edition AAC Bare Overhead Conductor Product Construction Bare all aluminum conductors (AAC) are concentric-lay-stranded consisting of one or more layers of aluminum alloy 1350 wires wrapped helically around a central wire. Each successive layer has six wires more than the underlying one. Increasing the number of wires for any given cross-sectional area provides greater flexibility. The most commonly used strandings consist of 7, 19, 37, 61 and 91 wires. Class AA strandings are used for bare overhead lines. The direction of lay for the outer layer is right-hand and is usually reversed in successive layers. The temper of the wires is full harddrawn (H19). Class A strandings are used primarily for overhead conductors that are to be covered. They have greater flexibility than Class AA. The outermost layer is right-hand lay and the temper is normally H19. Successive layers are reverse lay. Features and Benefits AAC conductors are the most economical since their lighter weight means lower unit length costs, easier handling during installation and the use of simpler fittings. They are inherently corrosion resistant due to their homogeneous construction. Applications Stranded bare AAC conductors may be used in overhead line installations where the design parameters do not require the higher tensile strength or temperature ratings provided by ACSR, ACCR or other types of conductors. ACSR Bare Overhead Conductor Product Construction ACSR is a composite concentric-lay stranded conductor consisting of a central steel core around which are stranded one or more layers of aluminum alloy 1350-H19 wires. The steel core may consist of a single wire, 7, 19, 37 or more concentrically stranded wires. They are normally protected against corrosion by the application of zinc coating. The standard Class A coating is usually adequate for ordinary environments. Heavier Class B or C coatings may be specified for greater protection. A special high-strength steel core with a Class A coating is also available. There are numerous combinations of aluminum and steel wires and layers that are available. The sizes and strandings most frequently used for overhead lines are listed on the following pages. Features and Benefits ACSR conductors have a long service record due to their economy, dependability and favourable strength to weight ratio. Such conductors combine the lightweight and high conductivity of the aluminum wires with the tensile strength and ruggedness of the steel core. For overhead line design, this enables higher tensions to be used with less conductor sag and longer spans than would be possible with most other types of conductors. Applications Aluminum conductors, steel reinforced (ACSR) are widely used for overhead transmission and distribution lines. 1

Physical Data for Aluminum 1350 Conductors Diameter (inch) Rated Size No. of Individual Complete Weight Strength Codeword (AWG/kcmil) Wires Wires Conductor (lb/kft) (Ibf) Peachbell 6 7 0.0612 0.184 24.6 563 Rose 4 7 0.0772 0.232 39.1 881 Iris 2 7 0.0974 0.292 62.2 1350 Pansy 1 7 0.1093 0.328 78.4 1640 Poppy 1/0 7 0.1228 0.368 98.9 1990 Aster 2/0 7 0.1379 0.414 124.8 2510 Phlox 3/0 7 0.1548 0.464 157.2 3040 0xlip 4/0 7 0.1739 0.522 198.4 3830 Daisy 266.8 7 0.1952 0.586 250.2 4830 Laurel 266.8 19 0.1185 0.593 250.1 4970 Tulip 336.4 19 0.1331 0.666 315.5 6150 Cosmos 477 19 0.1584 0.792 446.8 8360 Syringa 477 37 0.1135 0.795 446.8 8690 Zinnia 500 19 0.1622 0.811 468.5 8760 Dahlia 556.5 19 0.1226 0.856 521.4 9750 Orchid 636 37 0.1311 0.918 596.0 11400 Violet 715 37 0.1391 0.974 671.0 12800 Arbutus 795 37 0.1466 1.026 745.3 13900 Magnolia 954 37 0.1606 1.124 894.5 16400 Bluebell 1033.5 37 0.1672 1.170 968.4 17700 Columbine 1351.5 61 0.1489 1.340 1266 23400 Coreopsis 1590 61 0.1615 1.454 1489 27000 Cowslip 2000 91 0.1482 1.630 1873 34200 Lupine 2500 91 0.1657 1.823 2365 41900 2

Electrical Data for Aluminum 1350 Conductors Resistance Reactance at 60 Hz** Size DC at 20 C AC at 25 C AC at 50 C AC at 75 C Capacitive Inductive at 25 C Ampacity* Codeword (AWG/kcmil) (ohm/kft) (ohm/kft) (ohm/kft) (ohm/kft) (megohm-kft) (ohm/kft) (A) Peachbell 6 0.659 0.673 0.739 0.806 0.766 0.659 105 Rose 4 0.414 0.423 0.465 0.506 0.729 0.414 135 Iris 2 0.260 0.266 0.292 0.318 0.692 0.260 185 Pansy 1 0.207 0.211 0.232 0.253 0.671 0.207 215 Poppy 1/0 0.164 0.167 0.184 0.200 0.655 0.164 245 Aster 2/0 0.130 0.133 0.146 0.159 0.634 0.130 285 Phlox 3/0 0.103 0.105 0.116 0.126 0.618 0.103 330 Oxlip 4/0 0.0816 0.0835 0.0917 0.100 0.602 0.0816 380 Daisy 266.8 0.0647 0.0663 0.0727 0.0794 0.581 0.0647 440 Laurel 266.8 0.0648 0.0663 0.0727 0.0794 0.581 0.0648 445 Tulip 336.4 0.0513 0.0527 0.0578 0.0629 0.560 0.0513 510 Cosmos 477 0.0363 0.0373 0.0409 0.0445 0.533 0.0363 640 Syringa 477 0.0363 0.0373 0.0409 0.0445 0.533 0.0363 640 Zinnia 500 0.0346 0.0356 0.0390 0.0426 0.533 0.0346 660 Dahlia 556.5 0.0311 0.0320 0.0352 0.0383 0.522 0.0311 700 Orchid 636 0.0272 0.0282 0.0309 0.0335 0.511 0.0272 760 Violet 715 0.0241 0.0250 0.0275 0.0299 0.502 0.0241 820 Arbutus 795 0.0217 0.0227 0.0248 0.0269 0.494 0.0217 880 Magnolia 954 0.0181 0.0191 0.0208 0.0227 0.479 0.0181 980 Bluebell 1033.5 0.0167 0.0177 0.0193 0.0210 0.473 0.0167 1030 Columbine 1351.5 0.0128 0.0138 0.0151 0.0163 0.452 0.0128 1210 Coreopsis 1590 0.0128 0.0120 0.0130 0.0141 0.439 0.0128 1230 Cowslip 2000 0.00865 0.00994 0.0107 0.0115 0.421 0.00865 1520 Lupine 2500 0.00699 0.00845 0.00907 0.00970 0.404 0.00699 1700 * Ampacity is with sun and wind at 2 ft/s ** Reactance at 1 foot equivalent spacing 3

Physical Data for ACSR Conductors Diameter (inch) Weight (lb/kft) Size Stranding Complete Rated Codeword (AWG/kcmil) (AI/Steel) Steel Wire Aluminum Wire Steel Core Conductor Aluminum Steel Total Strength (Ibf) Turkey 6 6/1 0.0661 0.0661 0.066 0.198 24.4 11.6 36.0 1190 Swan 4 6/1 0.0834 0.0834 0.083 0.250 39.0 18.4 57.4 1860 Swanate 4 7/1 0.1029 0.0772 0.103 0.257 39.0 28.0 67.0 2360 Sparrow 2 6/1 0.1052 0.1052 0.105 0.316 61.9 29.3 91.2 2850 Sparate 2 7/1 0.1299 0.0974 0.130 0.325 62.3 44.7 102.0 3640 Robin 1 6/1 0.1181 0.1181 0.118 0.355 78.1 36.9 115.0 3550 Raven 1/0 6/1 0.1327 0.1327 0.133 0.398 98.4 46.6 145.0 4380 Quail 2/0 6/1 0.1489 0.1489 0.149 0.447 124.2 58.8 183.0 5310 Pigeon 3/0 6/1 0.1672 0.1672 0.167 0.502 155.9 74.1 230.0 6620 Penguin 4/0 6/1 0.1878 0.1878 0.188 0.563 197.6 93.4 291.0 8350 Waxwing 266.8 18/1 0.1217 0.1217 0.122 0.609 249.8 39.2 289.0 6880 Partridge 266.8 26/7 0.0788 0.1013 0.236 0.642 250.4 115.6 366.0 11300 Merlin 336.4 18/1 0.1367 0.1367 0.137 0.684 315.5 49.5 365.0 8680 Linnet 336.4 26/7 0.0884 0.1137 0.265 0.720 316.5 145.5 462.0 14100 Oriole 336.4 30/7 0.1059 0.1059 0.318 0.741 317.0 209.0 526.0 17300 Chickadee 397.5 18/1 0.1486 0.1486 0.149 0.743 372.5 58.5 431.0 9940 Ibis 397.5 26/7 0.0961 0.1236 0.288 0.783 374.1 171.9 546.0 16300 Pelican 477 18/1 0.1628 0.1628 0.163 0.814 446.8 70.2 517.0 11800 Flicker 477 24/7 0.0940 0.1410 0.282 0.846 449.5 164.5 614.0 17200 Hawk 477 26/7 0.1053 0.1354 0.316 0.858 448.6 206.4 655.0 19500 Hen 477 30/7 0.1261 0.1261 0.378 0.883 449.7 296.3 746.0 23800 Osprey 556.5 18/1 0.1758 0.1758 0.176 0.879 521.1 81.9 603.0 13700 Parakeet 556.5 24/7 0.1015 0.1523 0.305 0.914 524.2 191.8 716.0 19800 Dove 556.5 26/7 0.1138 0.1463 0.341 0.927 523.9 241.1 765.0 22600 Rook 636 24/7 0.1085 0.1628 0.326 0.977 598.8 219.2 818.0 22000 Grosbeak 636 26/7 0.1216 0.1564 0.365 0.990 598.7 275.3 873.0 25200 Drake 795 26/7 0.1360 0.1749 0.408 1.108 749.0 344.0 1093 31500 Tern 795 45/7 0.0886 0.1329 0.266 1.063 748.9 146.1 895 22100 Rail 954 45/7 0.0971 0.1456 0.291 1.165 899 176 1075 25900 Cardinal 954 54/7 0.1329 0.1329 0.399 1.196 899 329 1228 33800 Curlew 1033.5 54/7 0.1383 0.1383 0.415 1.245 973 356 1329 36600 Bluejay 1113 45/7 0.1049 0.1573 0.315 1.259 1049 205 1254 29800 Bittern 1272 45/7 0.1121 0.1680 0.336 1.345 1198 234 1432 34100 Lapwing 1590 45/7 0.1253 0.1880 0.376 1.504 1498 292 1790 42200 Bluebird 2156 84/19 0.0961 0.1602 0.481 1.762 2040 468 2508 60300 4

Electrical Data for ACSR Conductors Resistance Reactance at 60 Hz ** Inductive Inductive Inductive Size DC at 20 C AC at 25 C AC at 50 C AC at 75 C Capacitive at 25 C at 50 C at75 C Ampacity* Codeword (AWG/kcmil) (ohm/kft) (ohm/kft) (ohm/kft) (ohm/kft) (megohm-kft) (ohm/kft) (ohm/kft) (ohm/kft) (A) Turkey 6 0.642 0.655 0.750 0.816 0.751 0.120 0.139 0.144 105 Swan 4 0.403 0.412 0.479 0.522 0.715 0.115 0.131 0.137 140 Swanate 4 0.399 0.407 0.463 0.516 0.710 0.113 0.124 0.130 140 Sparrow 2 0.253 0.259 0.308 0.336 0.678 0.110 0.123 0.128 185 Sparate 2 0.251 0.256 0.297 0.330 0.674 0.109 0.118 0.121 185 Robin 1 0.201 0.206 0.247 0.270 0.660 0.107 0.119 0.122 210 Raven 1/0 0.159 0.163 0.197 0.216 0.642 0.104 0.114 0.116 240 Quail 2/0 0.126 0.130 0.162 0.176 0.624 0.102 0.112 0.113 275 Pigeon 3/0 0.100 0.103 0.121 0.145 0.606 0.0992 0.108 0.109 315 Penguin 4/0 0.0795 0.0822 0.107 0.116 0.597 0.0964 0.105 0.105 365 Waxwing 266.8 0.0644 0.0657 0.0723 0.0788 0.576 0.0903 0.0903 0.0903 445 Partridge 266.8 0.0637 0.0652 0.0714 0.0778 0.565 0.0881 0.0881 0.0881 455 Merlin 336.4 0.0510 0.0523 0.0574 0.0625 0.560 0.0826 0.0826 0.0826 515 Linnet 336.4 0.0506 0.0517 0.0568 0.0619 0.549 0.0854 0.0854 0.0854 530 Oriole 336.4 0.0502 0.0513 0.0563 0.0614 0.544 0.0843 0.0843 0.0843 530 Chickadee 397.5 0.0432 0.0443 0.0487 0.0528 0.544 0.0856 0.0856 0.0856 575 Ibis 397.5 0.0428 0.0438 0.0481 0.0525 0.539 0.0835 0.0835 0.0835 590 Pelican 477 0.0360 0.0369 0.0405 0.0441 0.528 0.0835 0.0835 0.0835 640 Flicker 477 0.0358 0.0367 0.0403 0.0439 0.524 0.0818 0.0818 0.0818 670 Hawk 477 0.0357 0.0366 0.0402 0.0438 0.522 0.0814 0.0814 0.0814 660 Hen 477 0.0354 0.0362 0.0398 0.0434 0.517 0.0803 0.0803 0.0803 660 Osprey 556.5 0.0309 0.0318 0.0348 0.0379 0.518 0.0818 0.0818 0.0818 710 Parakeet 556.5 0.0307 0.0314 0.0347 0.0377 0.512 0.0801 0.0801 0.0801 720 Dove 556.5 0.0305 0.0314 0.0345 0.0375 0.510 0.0795 0.0795 0.0795 730 Rook 636 0.0268 0.0277 0.0303 0.0330 0.502 0.0786 0.0786 0.0786 780 Grosbeak 636 0.0267 0.0275 0.0301 0.0328 0.499 0.0780 0.0780 0.0780 790 Drake 795 0.0214 0.0222 0.0242 0.0263 0.482 0.0756 0.0756 0.0756 910 Tern 795 0.0216 0.0225 0.0246 0.0267 0.488 0.0769 0.0769 0.0769 890 Rail 954 0.0180 0.0188 0.0206 0.0223 0.474 0.0748 0.0748 0.0748 970 Cardinal 954 0.0179 0.0186 0.0205 0.0222 0.470 0.0737 0.0737 0.0737 990 Curlew 1033.5 0.0165 0.0172 0.0189 0.0205 0.464 0.0729 0.0729 0.0729 1040 Bluejay 1113 0.0155 0.0163 0.0178 0.0193 0.461 0.0731 0.0731 0.0731 1070 Bittern 1272 0.0135 0.0144 0.0157 0.0170 0.451 0.0716 0.0716 0.0716 1160 Lapwing 1590 0.0108 0.0117 0.0128 0.0138 0.434 0.0689 0.0689 0.0689 1340 Bluebird 2156 0.00801 0.00903 0.00977 0.0105 0.409 0.0652 0.0652 0.0652 1610 * Ampacity is with sun and wind at 2 ft/s ** Reactance at 1 foot equivalent spacing 5

ACSR-II Overhead Conductors ACSR-II Overhead Conductors are manufactured from two standard ACSR conductors which are twisted together with a very long lay (8-10 feet). This simple cable design is very effective in reducing ice loading and wind-induced conductor motion, and the costly damage that these can cause. AAC (all aluminum conductor) and AAAC (all aluminum alloy conductor) are also available in the twisted configuration, and are identified as AAC-II and AAAC-II respectively. Wind-Induced Conductor Motion Aeolian Vibration Steady, low speed wind loading can impart vertical motion to a standard overhead conductor. At resonant frequencies, the amplitude of this motion (aeolian vibration) is sufficient to cause fatigue damage to the conductor strands, and can reduce the life expectancy of the conductor. ACSR-II conductor reduces aeolian vibration to harmless levels through two mechanisms: 1) Prevention of resonant vibrations 2) Conversion of vertical motion to rotational motion. The twisted configuration of ACSR-II results in a constantly changing profile along its length. Consequently, the wind-force applied to the conductor is different at each point along its length. This variation in wind force effectively prevents resonant vibration and reduces vertical conductor motion. A further reduction is achieved as a result of the ease of rotation of a twisted assembly compared to a single conductor. Since a cabled conductor is much easier to rotate than a single conductor, much of the wind s energy is dissipated through harmless rotation of an ACSR-II conductor rather than imparting damaging aeolian vibration. Conductor Galloping The combination of an eccentric ice coating and high wind-loading can create a situation where a standard overhead conductor is subjected to wind-induced lift. Vertical motion of several feet can result as the ice-coated conductor, behaving like an airfoil, is lifted and then dropped by the wind. Severe damage to the conductor and accessories can result as this cycle repeats itself. However, the twisted configuration of the ACSR-II design changes the angle of wind attack along the cable s length and prevents the formation of an ice airfoil. This effectively eliminates one of the key causes of conductor galloping. Sub-Conductor Oscillation Wind speeds in excess of 20 mph can cause damaging wake-induced motion of bundled conductors in amplitudes of up to 5 feet. However, it is known that if one of the conductors in a bundled system is a different diameter than the other, the likelihood of resonant vibrations being created is greatly reduced. When two ACSR-II conductors are used in a bundled configuration, it is very likely that at any point along the length of the bundle the apparent diameter of one ACSR-II conductor will be different from that of the other. In addition, wind vortices formed in a standard bundled system cause vertical forces and vertical conductor motion. As stated previously, an ACSR-II conductor will convert these vertical forces into rotational motion. Operating Temperatures Compared to a standard ACSR conductor of equivalent cross-sectional area, ACSR-II conductor has a larger surface area. This allows for greater heat dissipation, and means that for a given current, ACSR-II conductor will operate at a lower temperature. Similarly, ACSR-II conductor has a greater ampacity than the equivalent single ACSR conductor. Cost Savings The unique physical properties of ACSR-II conductors can result in real savings in the cost of a T & D system. Fatigue damage to conductor strands is reduced, thus enhancing lifeexpectancy and delaying replacement. Accessories (i.e. vibration dampers, armor rods, and anti-galloping devices) normally used with standard conductors to reduce conductor motion can be eliminated. The higher installation tension permitted with ACSR-II conductor results in reduced structure costs through fewer and smaller structures. Lower operating temperature and resistance is obtained. Higher load capacity is achieved. 6

Physical Data for ACSR-II Conductors Size Stranding Steel Wire Aluminum Major Overall Aluminum Steel Total Rated Codeword (AWG/kcmil) (Al/Steel) Diameter Wire Diameter Diameter * Weight Weight Weight Strength (inch) (inch) (inch) (lb/kft) (lb/kft) (lb/kft) (lbf) ACSR-II Turkey 6 2 6/1 0.0661 0.0661 0.396 49.0 23.2 72.2 2380 ACSR-II Swan 4 2 6/1 0.0834 0.0834 0.500 78.0 36.8 114.8 3720 ACSR-II Swanate 4 2 7/1 0.1029 0.0772 0.514 78.0 56.0 134.0 4720 ACSR-II Sparrow 2 2 6/1 0.1052 0.1052 0.632 124.0 58.6 182.6 5700 ACSR-II Robin 1 2 6/1 0.1181 0.1181 0.710 156.4 73.8 230.2 7100 ACSR-II Raven 1/0 2 6/1 0.1327 0.1327 0.796 197.4 93.2 290.6 8760 ACSR-II Quail 2/0 2 6/1 0.1489 0.1489 0.894 248.8 117.6 366.4 10620 ACSR-II Pigeon 3/0 2 6/1 0.1672 0.1672 1.004 313.4 148.2 461.6 13240 ACSR-II Penguin 4/0 2 6/1 0.1878 0.1878 1.126 395.4 186.8 582.2 16700 ACSR-II Waxwing 266.8 2 18/1 0.1217 0.1217 1.218 500.6 78.4 579.0 13760 ACSR-II Partridge 266.8 2 26/7 0.0788 0.1013 1.284 503.4 231.2 734.6 22600 ACSR-II Merlin 336.4 2 18/1 0.1367 0.1367 1.368 565.8 259.6 730.4 17360 ACSR-II Linnet 336.4 2 26/7 0.0884 0.1137 1.440 634.2 291.0 925.2 28200 ACSR-II Oriole 336.4 2 30/7 0.1059 0.1059 1.482 636.2 418.0 1054 34600 ACSR-II Chickadee 397.5 2 18/1 0.1486 0.1486 1.486 746.2 117.0 863.2 19880 ACSR-II Ibis 397.5 2 26/7 0.0961 0.1236 1.566 749.4 343.8 1093 32600 ACSR-II Pelican 477 2 18/1 0.1628 0.1628 1.628 895.6 140.4 1036 23600 ACSR-II Flicker 477 2 24/7 0.0940 0.1410 1.692 900.2 329.0 1229 34400 ACSR-II Hawk 477 2 26/7 0.1053 0.1364 1.696 899.2 412.8 1312 39000 ACSR-II Hen 477 2 30/7 0.1261 0.1261 1.766 902.2 592.6 1495 47600 * Minor Overall Diameter is 1/2 of Major Overall Diameter Electrical Data for ACSR-II Conductors* Size Resistance Reactance at 60 Hz ** Codeword (AWG/kcmil) Inductive Inductive Inductive DC at 20 C AC at 25 C AC at 50 C AC at 75 C Capacitive at 25 C at 50 C at 75 C (ohm/kft) (ohm/kft) (ohm/kft) (ohm/kft) (megohm-kft) (ohm/kft) (ohm/kft) (ohm/kft) ACSR-II Turkey 6 0.321 0.328 0.375 0.408 0.566 0.107 0.117 0.119 ACSR-II Swan 4 0.202 0.206 0.240 0.261 0.530 0.102 0.110 0.113 ACSR-II Swanate 4 0.199 0.204 0.232 0.258 0.525 0.101 0.106 0.109 ACSR-II Sparrow 2 0.127 0.130 0.154 0.168 0.493 0.0967 0.104 0.106 ACSR-II Robin 1 0.101 0.103 0.124 0.135 0.475 0.0938 0.100 0.102 ACSR-II Raven 1/0 0.0796 0.0816 0.0986 0.108 0.457 0.0911 0.0960 0.0973 ACSR-II Quail 2/0 0.0632 0.0651 0.0808 0.0880 0.439 0.0886 0.0937 0.0945 ACSR-II Pigeon 3/0 0.0502 0.0517 0.0647 0.0723 0.420 0.0861 0.0906 0.0912 ACSR-II Penguin 4/0 0.0398 0.0411 0.0533 0.0579 0.403 0.0833 0.0875 0.0878 ACSR-II Waxwing 266.8 0.0322 0.0329 0.0362 0.0394 0.390 0.0794 0.0794 0.0794 ACSR-II Partridge 266.8 0.0319 0.0326 0.0357 0.0389 0.382 0.0777 0.0777 0.0777 ACSR-II Merlin 336.4 0.0255 0.0261 0.0287 0.0313 0.372 0.0768 0.0768 0.0768 ACSR-II Linnet 336.4 0.0253 0.0259 0.0284 0.0310 0.364 0.0750 0.0750 0.0750 ACSR-II Oriole 336.4 0.0251 0.0257 0.0281 0.0307 0.359 0.0741 0.0741 0.0741 ACSR-II Chickadee 397.5 0.0216 0.0222 0.0243 0.0264 0.359 0.0748 0.0748 0.0748 ACSR-II Ibis 397.5 0.0214 0.0219 0.0241 0.0262 0.351 0.0731 0.0731 0.0731 ACSR-II Pelican 477 0.0180 0.0185 0.0203 0.0221 0.345 0.0727 0.0727 0.0727 ACSR-II Flicker 477 0.0179 0.0184 0.0202 0.0220 0.339 0.0714 0.0714 0.0714 ACSR-II Hawk 477 0.0178 0.0183 0.0201 0.0219 0.336 0.0710 0.0710 0.0710 ACSR-II Hen 477 0.0177 0.0181 0.0199 0.0217 0.332 0.0701 0.0701 0.0701 * For single-aluminum-layer ACSR, the AC values are approximate, based on assumed current for 75 C, 75% of assumed current for 50 C, and 10% of assumed current for 25 C. Reactances for multi-layer conductors are not temperature dependent. Data is adapted from conventional ACSR data given in Tables 4-15 and 4-16 of Aluminum Electrical Conductor Handbook, Second Edition, published by the Aluminum Association. ** Reactance at 1 foot equivalent spacing 7

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