Bare Overhead Conductors - Nexans USA - Nexans

1 Bare Overhead Conductors Nexans is a diversified wire and cable manufacturer. Nexans has been designing, manufacturing and delivering cables to cust...

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Bare Overhead Conductors AAC, ACSR, ACSR II

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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:

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.

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)

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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.

Physical Data for Aluminum 1350 Conductors

         Diameter (inch) Size No. of Individual Complete Weight Codeword (AWG/kcmil) Wires Wires Conductor (lb/kft) Peachbell Rose Iris Pansy Poppy Aster Phlox 0xlip Daisy Laurel Tulip Cosmos Syringa Zinnia Dahlia Orchid Violet Arbutus Magnolia Bluebell Columbine Coreopsis Cowslip Lupine

6 4 2 1 1/0 2/0 3/0 4/0 266.8 266.8 336.4 477 477 500 556.5 636 715 795 954 1033.5 1351.5 1590 2000 2500

7 7 7 7 7 7 7 7 7 19 19 19 37 19 19 37 37 37 37 37 61 61 91 91

0.0612 0.0772 0.0974 0.1093 0.1228 0.1379 0.1548 0.1739 0.1952 0.1185 0.1331 0.1584 0.1135 0.1622 0.1226 0.1311 0.1391 0.1466 0.1606 0.1672 0.1489 0.1615 0.1482 0.1657

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0.184 0.232 0.292 0.328 0.368 0.414 0.464 0.522 0.586 0.593 0.666 0.792 0.795 0.811 0.856 0.918 0.974 1.026 1.124 1.170 1.340 1.454 1.630 1.823

24.6 39.1 62.2 78.4 98.9 124.8 157.2 198.4 250.2 250.1 315.5 446.8 446.8 468.5 521.4 596.0 671.0 745.3 894.5 968.4 1266 1489 1873 2365

Rated Strength (Ibf) 563 881 1350 1640 1990 2510 3040 3830 4830 4970 6150 8360 8690 8760 9750 11400 12800 13900 16400 17700 23400 27000 34200 41900

Electrical Data for Aluminum 1350 Conductors

        Resistance            Reactance at 60 Hz** Codeword

Size (AWG/kcmil)

DC at 20°C (ohm/kft)

AC at 25°C (ohm/kft)

AC at 50°C (ohm/kft)

AC at 75°C (ohm/kft)

Capacitive Inductive at 25°C (megohm-kft) (ohm/kft)

Ampacity* (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

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Physical Data for ACSR Conductors

      Diameter (inch) Weight (lb/kft) Size Stranding Complete Codeword (AWG/kcmil) (AI/Steel) Steel Wire Aluminum Wire Steel Core Conductor Aluminum Steel Total Turkey Swan Swanate Sparrow Sparate Robin Raven Quail Pigeon Penguin Waxwing Partridge Merlin Linnet Oriole Chickadee Ibis Pelican Flicker Hawk Hen Osprey Parakeet Dove Rook Grosbeak Drake Tern Rail Cardinal Curlew Bluejay Bittern Lapwing Bluebird

6 4 4 2 2 1 1/0 2/0 3/0 4/0 266.8 266.8 336.4 336.4 336.4 397.5 397.5 477 477 477 477 556.5 556.5 556.5 636 636 795 795 954 954 1033.5 1113 1272 1590 2156

6/1 6/1 7/1 6/1 7/1 6/1 6/1 6/1 6/1 6/1 18/1 26/7 18/1 26/7 30/7 18/1 26/7 18/1 24/7 26/7 30/7 18/1 24/7 26/7 24/7 26/7 26/7 45/7 45/7 54/7 54/7 45/7 45/7 45/7 84/19

0.0661 0.0834 0.1029 0.1052 0.1299 0.1181 0.1327 0.1489 0.1672 0.1878 0.1217 0.0788 0.1367 0.0884 0.1059 0.1486 0.0961 0.1628 0.0940 0.1053 0.1261 0.1758 0.1015 0.1138 0.1085 0.1216 0.1360 0.0886 0.0971 0.1329 0.1383 0.1049 0.1121 0.1253 0.0961

0.0661 0.0834 0.0772 0.1052 0.0974 0.1181 0.1327 0.1489 0.1672 0.1878 0.1217 0.1013 0.1367 0.1137 0.1059 0.1486 0.1236 0.1628 0.1410 0.1354 0.1261 0.1758 0.1523 0.1463 0.1628 0.1564 0.1749 0.1329 0.1456 0.1329 0.1383 0.1573 0.1680 0.1880 0.1602

0.066 0.083 0.103 0.105 0.130 0.118 0.133 0.149 0.167 0.188 0.122 0.236 0.137 0.265 0.318 0.149 0.288 0.163 0.282 0.316 0.378 0.176 0.305 0.341 0.326 0.365 0.408 0.266 0.291 0.399 0.415 0.315 0.336 0.376 0.481

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0.198 0.250 0.257 0.316 0.325 0.355 0.398 0.447 0.502 0.563 0.609 0.642 0.684 0.720 0.741 0.743 0.783 0.814 0.846 0.858 0.883 0.879 0.914 0.927 0.977 0.990 1.108 1.063 1.165 1.196 1.245 1.259 1.345 1.504 1.762

24.4 39.0 39.0 61.9 62.3 78.1 98.4 124.2 155.9 197.6 249.8 250.4 315.5 316.5 317.0 372.5 374.1 446.8 449.5 448.6 449.7 521.1 524.2 523.9 598.8 598.7 749.0 748.9 899 899 973 1049 1198 1498 2040

11.6 18.4 28.0 29.3 44.7 36.9 46.6 58.8 74.1 93.4 39.2 115.6 49.5 145.5 209.0 58.5 171.9 70.2 164.5 206.4 296.3 81.9 191.8 241.1 219.2 275.3 344.0 146.1 176 329 356 205 234 292 468

36.0 57.4 67.0 91.2 102.0 115.0 145.0 183.0 230.0 291.0 289.0 366.0 365.0 462.0 526.0 431.0 546.0 517.0 614.0 655.0 746.0 603.0 716.0 765.0 818.0 873.0 1093 895 1075 1228 1329 1254 1432 1790 2508

Rated Strength (Ibf) 1190 1860 2360 2850 3640 3550 4380 5310 6620 8350 6880 11300 8680 14100 17300 9940 16300 11800 17200 19500 23800 13700 19800 22600 22000 25200 31500 22100 25900 33800 36600 29800 34100 42200 60300

Electrical Data for ACSR Conductors       Resistance          Reactance at 60 Hz ** 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 Codeword (AWG/kcmil) (ohm/kft) (ohm/kft) (ohm/kft) (ohm/kft) (megohm-kft) (ohm/kft) (ohm/kft)

Inductive at75°C (ohm/kft)

Ampacity* (A)

Turkey Swan Swanate Sparrow Sparate Robin Raven Quail Pigeon Penguin Waxwing Partridge Merlin Linnet Oriole Chickadee Ibis Pelican Flicker Hawk Hen Osprey Parakeet Dove Rook Grosbeak Drake Tern Rail Cardinal Curlew Bluejay Bittern Lapwing Bluebird

0.144 0.137 0.130 0.128 0.121 0.122 0.116 0.113 0.109 0.105 0.0903 0.0881 0.0826 0.0854 0.0843 0.0856 0.0835 0.0835 0.0818 0.0814 0.0803 0.0818 0.0801 0.0795 0.0786 0.0780 0.0756 0.0769 0.0748 0.0737 0.0729 0.0731 0.0716 0.0689 0.0652

105 140 140 185 185 210 240 275 315 365 445 455 515 530 530 575 590 640 670 660 660 710 720 730 780 790 910 890 970 990 1040 1070 1160 1340 1610

6 0.642 4 0.403 4 0.399 2 0.253 2 0.251 1 0.201 1/0 0.159 2/0 0.126 3/0 0.100 4/0 0.0795 266.8 0.0644 266.8 0.0637 336.4 0.0510 336.4 0.0506 336.4 0.0502 397.5 0.0432 397.5 0.0428 477 0.0360 477 0.0358 477 0.0357 477 0.0354 556.5 0.0309 556.5 0.0307 556.5 0.0305 636 0.0268 636 0.0267 795 0.0214 795 0.0216 954 0.0180 954 0.0179 1033.5 0.0165 1113 0.0155 1272 0.0135 1590 0.0108 2156 0.00801

0.655 0.412 0.407 0.259 0.256 0.206 0.163 0.130 0.103 0.0822 0.0657 0.0652 0.0523 0.0517 0.0513 0.0443 0.0438 0.0369 0.0367 0.0366 0.0362 0.0318 0.0314 0.0314 0.0277 0.0275 0.0222 0.0225 0.0188 0.0186 0.0172 0.0163 0.0144 0.0117 0.00903

0.750 0.479 0.463 0.308 0.297 0.247 0.197 0.162 0.121 0.107 0.0723 0.0714 0.0574 0.0568 0.0563 0.0487 0.0481 0.0405 0.0403 0.0402 0.0398 0.0348 0.0347 0.0345 0.0303 0.0301 0.0242 0.0246 0.0206 0.0205 0.0189 0.0178 0.0157 0.0128 0.00977

0.816 0.522 0.516 0.336 0.330 0.270 0.216 0.176 0.145 0.116 0.0788 0.0778 0.0625 0.0619 0.0614 0.0528 0.0525 0.0441 0.0439 0.0438 0.0434 0.0379 0.0377 0.0375 0.0330 0.0328 0.0263 0.0267 0.0223 0.0222 0.0205 0.0193 0.0170 0.0138 0.0105

* Ampacity is with sun and wind at 2 ft/s ** Reactance at 1 foot equivalent spacing

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0.751 0.715 0.710 0.678 0.674 0.660 0.642 0.624 0.606 0.597 0.576 0.565 0.560 0.549 0.544 0.544 0.539 0.528 0.524 0.522 0.517 0.518 0.512 0.510 0.502 0.499 0.482 0.488 0.474 0.470 0.464 0.461 0.451 0.434 0.409

0.120 0.115 0.113 0.110 0.109 0.107 0.104 0.102 0.0992 0.0964 0.0903 0.0881 0.0826 0.0854 0.0843 0.0856 0.0835 0.0835 0.0818 0.0814 0.0803 0.0818 0.0801 0.0795 0.0786 0.0780 0.0756 0.0769 0.0748 0.0737 0.0729 0.0731 0.0716 0.0689 0.0652

0.139 0.131 0.124 0.123 0.118 0.119 0.114 0.112 0.108 0.105 0.0903 0.0881 0.0826 0.0854 0.0843 0.0856 0.0835 0.0835 0.0818 0.0814 0.0803 0.0818 0.0801 0.0795 0.0786 0.0780 0.0756 0.0769 0.0748 0.0737 0.0729 0.0731 0.0716 0.0689 0.0652

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.

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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.

Physical Data for ACSR-II Conductors Size Stranding Codeword (AWG/kcmil) (Al/Steel) ACSR-II ACSR-II ACSR-II ACSR-II ACSR-II ACSR-II ACSR-II ACSR-II ACSR-II ACSR-II ACSR-II ACSR-II ACSR-II ACSR-II ACSR-II ACSR-II ACSR-II ACSR-II ACSR-II ACSR-II

Turkey Swan Swanate Sparrow Robin Raven Quail Pigeon Penguin Waxwing Partridge Merlin Linnet Oriole Chickadee Ibis Pelican Flicker Hawk Hen

6 4 4 2 1 1/0 2/0 3/0 4/0 266.8 266.8 336.4 336.4 336.4 397.5 397.5 477 477 477 477

2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2

× × × × × × × × × × × × × × × × × × × ×

6/1 6/1 7/1 6/1 6/1 6/1 6/1 6/1 6/1 18/1 26/7 18/1 26/7 30/7 18/1 26/7 18/1 24/7 26/7 30/7

Steel Wire Diameter (inch)

Aluminum Wire Diameter (inch)

0.0661 0.0834 0.1029 0.1052 0.1181 0.1327 0.1489 0.1672 0.1878 0.1217 0.0788 0.1367 0.0884 0.1059 0.1486 0.0961 0.1628 0.0940 0.1053 0.1261

0.0661 0.0834 0.0772 0.1052 0.1181 0.1327 0.1489 0.1672 0.1878 0.1217 0.1013 0.1367 0.1137 0.1059 0.1486 0.1236 0.1628 0.1410 0.1364 0.1261

Major Overall Aluminum Diameter * Weight (inch) (lb/kft) 0.396 0.500 0.514 0.632 0.710 0.796 0.894 1.004 1.126 1.218 1.284 1.368 1.440 1.482 1.486 1.566 1.628 1.692 1.696 1.766

49.0 78.0 78.0 124.0 156.4 197.4 248.8 313.4 395.4 500.6 503.4 565.8 634.2 636.2 746.2 749.4 895.6 900.2 899.2 902.2

Steel Weight (lb/kft)

Total Weight (lb/kft)

Rated Strength (lbf)

23.2 36.8 56.0 58.6 73.8 93.2 117.6 148.2 186.8 78.4 231.2 259.6 291.0 418.0 117.0 343.8 140.4 329.0 412.8 592.6

72.2 114.8 134.0 182.6 230.2 290.6 366.4 461.6 582.2 579.0 734.6 730.4 925.2 1054 863.2 1093 1036 1229 1312 1495

2380 3720 4720 5700 7100 8760 10620 13240 16700 13760 22600 17360 28200 34600 19880 32600 23600 34400 39000 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 ACSR-II ACSR-II ACSR-II ACSR-II ACSR-II ACSR-II ACSR-II ACSR-II ACSR-II ACSR-II ACSR-II ACSR-II ACSR-II ACSR-II ACSR-II ACSR-II ACSR-II ACSR-II ACSR-II

Turkey Swan Swanate Sparrow Robin Raven Quail Pigeon Penguin Waxwing Partridge Merlin Linnet Oriole Chickadee Ibis Pelican Flicker Hawk Hen

6 4 4 2 1 1/0 2/0 3/0 4/0 266.8 266.8 336.4 336.4 336.4 397.5 397.5 477 477 477 477

0.321 0.202 0.199 0.127 0.101 0.0796 0.0632 0.0502 0.0398 0.0322 0.0319 0.0255 0.0253 0.0251 0.0216 0.0214 0.0180 0.0179 0.0178 0.0177

0.328 0.206 0.204 0.130 0.103 0.0816 0.0651 0.0517 0.0411 0.0329 0.0326 0.0261 0.0259 0.0257 0.0222 0.0219 0.0185 0.0184 0.0183 0.0181

0.375 0.240 0.232 0.154 0.124 0.0986 0.0808 0.0647 0.0533 0.0362 0.0357 0.0287 0.0284 0.0281 0.0243 0.0241 0.0203 0.0202 0.0201 0.0199

0.408 0.261 0.258 0.168 0.135 0.108 0.0880 0.0723 0.0579 0.0394 0.0389 0.0313 0.0310 0.0307 0.0264 0.0262 0.0221 0.0220 0.0219 0.0217

0.566 0.530 0.525 0.493 0.475 0.457 0.439 0.420 0.403 0.390 0.382 0.372 0.364 0.359 0.359 0.351 0.345 0.339 0.336 0.332

0.107 0.102 0.101 0.0967 0.0938 0.0911 0.0886 0.0861 0.0833 0.0794 0.0777 0.0768 0.0750 0.0741 0.0748 0.0731 0.0727 0.0714 0.0710 0.0701

0.117 0.110 0.106 0.104 0.100 0.0960 0.0937 0.0906 0.0875 0.0794 0.0777 0.0768 0.0750 0.0741 0.0748 0.0731 0.0727 0.0714 0.0710 0.0701

0.119 0.113 0.109 0.106 0.102 0.0973 0.0945 0.0912 0.0878 0.0794 0.0777 0.0768 0.0750 0.0741 0.0748 0.0731 0.0727 0.0714 0.0710 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

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US Sales Office

Corporate Office

10 North Hill Drive Suite 2A Warrenton, Virginia 20186

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Telephone (540) 347-2839 Facsimile (540) 347-5338

Telephone (905) 944-4300 Facsimile (905) 944-4330

Internet Web Site www.nexansenergy.com

Manufacturing Locations Weyburn, Saskatchewan Quebec City, Quebec

Nov. 2003