Bare Aluminum Overhead Transmission & Distribution

ACSS ALBARE7

Aluminum Conductor, Steel Supported. Bare.

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Application & Features

ACSS is used 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 than a comparable ACSR under electrical loadings; it is self-damping if prestretched during installation; and its final sags are not affected by long term creep of aluminum. The advantages make ACSS especially useful in reconductoring applications requiring increased current with existing tensions and clearances, new line applications where structures can be economized because of reduced conductor sag, new line applications requiring high emergency loadings, and lines where Aeolian vibration is a problem.

Specifications

Select a set of products below for more information:


	Codeword	Size (AWG or kcmil) (mm2)	No. of Strands	Nom. OD (mils) (mm)	Nominal Total Weight (lbs/1000') (kgs/km)
More Options	LINNET LINNET	336.4 KCMIL 336.4 KCMIL	26 26	720 18.29	462 688
More Options	IBIS IBIS	397.5 KCMIL 397.5 KCMIL	26 26	782 19.88	546 813
More Options	HAWK HAWK	477 KCMIL 477 KCMIL	26 26	857 21.78	655 975
More Options	HEN HEN	477 KCMIL 477 KCMIL	30 30	882 22.42	746 1111
More Options	DOVE DOVE	556.5 KCMIL 556.5 KCMIL	26 26	926 23.54	765 1139
More Options	SQUAB SQUAB	605 KCMIL 605 KCMIL	26 26	965 24.53	831 1237
More Options	GOLDFINCH GOLDFINCH	636 KCMIL 636 KCMIL	22 22	963 24.47	765 1138
More Options	GROSBEAK GROSBEAK	636 KCMIL 636 KCMIL	26 26	990 25.16	874 1301
More Options	FLAMINGO FLAMINGO	666.6 KCMIL 666.6 KCMIL	24 24	1000 25.40	858 1277
More Options	DRAKE DRAKE	795 KCMIL 795 KCMIL	26 26	1107 28.13	1093 1627
More Options	TERN TERN	795 KCMIL 795 KCMIL	45 45	1063 27.01	895 1331
More Options	CONDOR CONDOR	795 KCMIL 795 KCMIL	54 54	1091 27.73	1022 1521
More Options	CANVASBACK CANVASBACK	954 KCMIL 954 KCMIL	30 30	1248 31.70	1480 2203
More Options	RAIL RAIL	954 KCMIL 954 KCMIL	45 45	1164 29.59	1074 1598
More Options	CARDINAL CARDINAL	954 KCMIL 954 KCMIL	54 54	1196 30.38	1227 1826
More Options	ORTOLAN ORTOLAN	1033.5 KCMIL 1033.5 KCMIL	45 45	1212 30.78	1163 1730
More Options	CURLEW CURLEW	1033.5 KCMIL 1033.5 KCMIL	54 54	1244 31.62	1329 1978
More Options	BLUEJAY BLUEJAY	1113 KCMIL 1113 KCMIL	45 45	1258 31.97	1254 1865
More Options	FINCH FINCH	1113 KCMIL 1113 KCMIL	54 54	1292 32.83	1430 2128
More Options	BUNTING BUNTING	1192.5 KCMIL 1192.5 KCMIL	45 45	1302 33.08	1342 1998
More Options	BITTERN BITTERN	1272 KCMIL 1272 KCMIL	45 45	1344 34.16	1432 2130
More Options	PHEASANT PHEASANT	1272 KCMIL 1272 KCMIL	54 54	1381 35.09	1634 2431
More Options	MARTIN MARTIN	1351.5 KCMIL 1351.5 KCMIL	54 54	1423 36.16	1735 2582
More Options	LAPWING LAPWING	1590 KCMIL 1590 KCMIL	45 45	1503 38.20	1790 2664
More Options	FALCON FALCON	1590 KCMIL 1590 KCMIL	54 54	1544 39.23	2042 3039
More Options	BLUEBIRD BLUEBIRD	2156 KCMIL 2156 KCMIL	84 84	1762 44.76	2508 3732

Standards & References

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. Southwire's ACSS is batch annealed to ensure superior sag and installation performance. High strength steel core, aluminized, and aluminum clad steel core is also available.

Resources

Overhead Conductor Manual

Advantages of ACSS and ACSS/HS285 Conductors White Paper

Self-Damping Tests for Various Drake Conductors

ACSS & ACSS/TW Installation Guide

Galvanized vs. Mischmetal Coating

Batch Annealing vs. Bobbin Annealing

Mischmetal Alloy-Coated (MA) Steel Core Sales Sheet

ACRS, ACSS, Composite Cable Bare EPD