Southwire – ACSS/TW
ACSS/TW
Aluminum Conductor, Steel Supported.
Trapezoidal Shaped Aluminum Strands. Bare.
APPLICATIONS
Southwire's ACSS/TW is designed for overhead distribution and transmission lines. It is designed to operate continuously
at elevated temperatures up to 250°C without loss of strength, it sags less under emergency electrical loadings than
ACSR/TW, excellent self-damping properties, and its final sags are not affected by long-term creep of aluminum.
Southwire's ACSS/TW is available in equal area and equal diameter design. The equal area design allows equal ampacity
in a smaller diameter conductor when compared with a standard ACSS conductor. The equal diameter design allows more
ampacity in an equal diameter conductor when compared with a standard ACSS conductor. ACSS/TW also provides many
design opportunities for new line construction: i.e., reduced tower cost, decreased sag, increased self-damping properties,
increased operating temperature and improved corrosion resistance.
SPECIFICATIONS
Southwire's ACSS/TW conductor meets or exceeds the following ASTM specifications:
B500 Metallic Coated Stranded Steel Core for Aluminum Conductors, Steel Reinforced.
B609 Aluminum 1350 Round Wire, Annealed and Intermediate Tempers, for Electrical Purposes.
B802 Zinc-5% Aluminum-Mischmetal Alloy-Coated Steel Core Wire for Aluminum Conductors, Steel Reinforced.
B803 High-Strength Zinc-5% Aluminum-Mischmetal Alloy-Coated Steel Core Wire for Aluminum and Aluminum-Alloy
Conductors, Steel Reinforced.
B857 Shaped Wire Compact Concentric-Lay-Stranded Aluminum Conductors, Coated-Steel Supported (ACSS/TW).
CONSTRUCTION
ACSS is a composite concentric-lay-stranded conductor. Steel strands form the central core of the conductor with one or
more layers of 63% minimum average conductivity aluminum 1350-0 wire stranded around it. The steel core carries most
or all of the mechanical load of the conductor due to the "0" (fully annealed or soft) temper aluminum. Steel core wires are
protected from corrosion by Galfan
®
, zinc-5% aluminum-mischmetal alloy coating. High strength steel core, aluminized,
and aluminum clad steel core is also available.
Copyright 2014, Southwire Company.
All Rights Reserved
ACSS/TW
Shaped Wire Concentric-Lay Compact Aluminum Conductors Steel Supported (ACSS/TW)
Area Equal to Standard ACSR Sizes
Code Word
Size
(kcmil)
Type No.
Stranding
Diameter (in)
Weight (lbs/1000 ft)
Rated Breaking Strength
(lbs)
Resistance
(ohms/mile)
Ampacity (amps)
Aluminum
Total
No of Layers of
Aluminum
No. of Aluminum
Wires
No. & Diameter
Individual Steel
Wire
Steel Core
Complete Cable
Alum.
Steel
Total
Standard
Strength
High Strength
HS-285
DC @ 20°C
AC @ 75°C
@ 75°C
@ 100°C
@ 150°C
@ 200°C
@ 250°C
Partridge/ACSS/TW
266.8
16
0.2094
0.2435
2
14
7 x 0.0788
0.2364
0.595
250.5
115.6
366.1
8,880
9,730
11,400
0.3262
0.4009
454
553
692
795
880
Linnet/ACSS/TW
336.4
16
0.2641
0.3070
2
16
7 x 0.0885
0.2655
0.667
316.1
145.8
461.9
11,200
12,300
14,400
0.2588
0.3181
523
638
801
921
1021
Oriole/ACSS/TW
336.4
23
0.2642
0.3258
2
16
7 x 0.1059
0.3177
0.692
318.2
209.2
527.4
14,800
16,300
19,100
0.2565
0.3151
533
650
816
940
1043
Flicker/ACSS/TW
477.0
13
0.3747
0.4233
2
18
7 x 0.0940
0.2820
0.776
447.8
164.5
612.3
13,000
14,200
16,400
0.1831
0.2255
648
793
998
1151
1279
Hawk/ACSS/TW
477.0
16
0.3746
0.4356
2
18
7 x 0.1054
0.3162
0.790
448.7
206.4
655.1
15,600
17,100
19,800
0.1825
0.2247
652
799
1005
1159
1289
Hen/ACSS/TW
477.0
23
0.3747
0.4621
2
20
7 x 0.1261
0.3783
0.820
451.1
296.6
747.8
21,000
22,700
26,700
0.1809
0.2225
663
813
1024
1181
1315
Parakeet/ACSS/TW
556.5
13
0.4371
0.4937
2
18
7 x 0.1015
0.3045
0.835
522.4
191.8
714.2
15,200
16,600
19,100
0.1569
0.1935
713
874
1102
1271
1415
Dove/ACSS/TW
556.5
16
0.4371
0.5083
2
20
7 x 0.1138
0.3414
0.850
523.4
241.1
764.5
18,200
19,900
23,100
0.1564
0.1928
719
881
1111
1282
1427
Rook/ACSS/TW
636.0
13
0.4995
0.5643
2
20
7 x 0.1085
0.3255
0.893
597.0
219.2
816.2
17,300
19,000
21,900
0.1373
0.1696
775
951
1200
1386
1544
Grosbeak/ACSS/TW
636.0
16
0.4995
0.5808
2
20
7 x 0.1216
0.3648
0.909
601.5
275.8
877.3
20,700
22,400
26,000
0.1369
0.1689
781
958
1210
1398
1557
Scoter/ACSS/TW
636.0
23
0.4995
0.6160
2
22
7 x 0.1456
0.4368
0.942
600.5
394.7
995.2
27,400
29,700
35,000
0.1356
0.1672
795
976
1234
1427
1591
Tern/ACSS/TW
795.0
7
0.6244
0.6675
2
17
7 x 0.0886
0.2658
0.960
745.2
146.1
891.3
14,200
15,200
17,400
0.1105
0.1373
878
1080
1366
1580
1762
Puffin/ACSS/TW
795.0
11
0.6244
0.6919
2
18
7 x 0.1056
0.3168
0.980
745.9
228.5
974.4
17,700
19,200
22,000
0.1101
0.1365
886
1090
1378
1595
1778
Condor/ACSS/TW
795.0
13
0.6244
0.7053
2
20
7 x 0.1213
0.3639
0.993
746.3
273.9
1020.0
21,700
23,300
26,900
0.1098
0.1361
890
1095
1386
1604
1789
Drake/ACSS/TW
795.0
16
0.6244
0.7261
2
20
7 x 0.1360
0.4080
1.010
747.0
344.3
1091.3
25,900
28,000
32,600
0.1095
0.1355
896
1103
1396
1616
1803
Canary/ACSS/TW
900.0
13
0.7069
0.7983
2
20
7 x 0.1291
0.3873
1.055
844.8
310.9
1155.7
24,600
26,400
30,500
0.0970
0.1205
962
1185
1501
1739
1942
Phoenix/ACSS/TW
954.0
5
0.7493
0.7876
3
30
7 x 0.0837
0.2511
1.044
897.7
130.4
1028.0
14,200
15,200
17,100
0.0927
0.1187
967
1189
1503
1740
1940
Rail/ACSS/TW
954.0
7
0.7493
0.8011
3
32
7 x 0.0971
0.2913
1.061
898.6
175.5
1074.1
16,700
18,000
20,400
0.0926
0.1183
972
1196
1512
1750
1953
Cardinal/ACSS/TW
954.0
13
0.7493
0.8464
2
20
7 x 0.1329
0.3987
1.080
895.5
328.8
1224.3
26,000
28,000
32,300
0.0915
0.1138
997
1229
1558
1806
2016
Snowbird/ACSS/TW
1033.5
5
0.8117
0.8534
3
30
7 x 0.0871
0.2613
1.089
972.5
141.2
1114.0
15,400
16,400
18,500
0.0856
0.1098
1016
1251
1584
1834
2048
Ortolan/ACSS/TW
1033.5
7
0.8117
0.8678
3
32
7 x 0.1010
0.3030
1.102
972.5
189.9
1162.0
18,100
19,500
22,000
0.0854
0.1095
1021
1257
1592
1843
2058
Curlew/ACSS/TW
1033.5
13
0.8117
0.9169
2
22
7 x 0.1383
0.4149
1.132
970.1
356.1
1326.2
28,200
30,300
35,000
0.0845
0.1053
1048
1293
1641
1903
2126
Avocet/ACSS/TW
1113.0
5
0.8742
0.9191
3
30
7 x 0.0904
0.2712
1.129
1047.0
152.1
1199.0
16,300
17,500
19,500
0.0794
0.1022
1063
1310
1661
1925
2150
One Southwire Drive
Carrollton, GA 30119 USA
770/832-4242
www.southwire.com