Product Description
Trapezoidal Aluminium Conductors Steel Supported ASTM B857 ACSS/TW
-----BARE OVERHEAD TRAPEZOIDAL ALUMINUM CONDUCTOR STEEL-SUPPORTED, CONCENTRIC-LAY-STRANDED

1. GENERALITIES: 
ACSS/TW is a Trapezoidal Aluminum Conductor Steel-Supported concentric-lay-stranded conductor. The aluminum strands are S trapezoidal in shape. 
The wedge-shaped aluminum strands enable a more-compact alignment of the aluminum wires. 
Conductor designs that maintain the same cross-sectional area of aluminum as a conventional round conductor result in a TW conductor that is 10 to 15 percent smaller in overall diameter. 
Conductor designs that maintain the same overall diameter as a conventional round conductor result in a TW conductor that has 20 to 25 percent more aluminum cross-sectional area packed in. 
The ACSS/TW conductors are manufactured in accordance with the requirements of the latest issue of ASTM B857. 
The steel strands form the central core of the conductor, around which is stranded two, three or four layers of aluminum 1350 O temper (annealed) wires. The steel core may consist of a concentric stranded cable of 7, 19 or more wires. Numerous combinations of aluminum and steel strands and layers are possible. The sizes and constructions listed on the following pages are common examples used in overhead lines. 
The steel core wires are protected from corrosion by galvanizing. For ACSS/TW conductors the standard Class A galvanized coating is usually adequate for ordinary environments. 

2. FEATURES AND BENEFITS: 
ACSS/TW conductors are similar to conventional ACSR/TW conductors but have some very important additional advantages. ACSS/TW conductors can operate continuously
At high temperatures (200° C) without damage; 
It sags less than ACSR/TW under emergency electrical loadings; It has self damping properties; And its final sags are not affected by long-term creep of the aluminum. 
ACSS/TW conductors constructed of equivalent aluminum crosssectional area provide a conductor that is smaller in overall diameter than the equivalent conventional round wire ACSS conductor. The reduced conductor diameter is advantageous in reducing the effects of ice and wind loading on the conductor. 
ACSS/TW conductors constructed to equivalent overall diameter enable a greater cross-sectional area of aluminum within the conductor, allowing a significant increase in conductor currentcarrying capacity. 

3. APPLICATIONS: 
Trapezoidal Aluminum Conductors, Steel-Supported (ACSS/TW) are extensively used for overhead distribution and transmission lines. 

4. ELECTRICAL PARAMETERS: 
The electrical parameters for the Trapezoidal ACSS equivalent cross-sectional area, and equivalent overall diameter conductors may be found in the last table of this section. 

5. OPTIONS: 
High-Strength Class A galvanized steel core (/HS). 
Extra-High-Strength Class A galvanized steel core (/EHS). 
Ultra-High-Strength Class A galvanized steel core (/UHS). 
Regular-Strength Class A zinc-5% aluminum misch-metal alloy-coated steel core (/MA). 
High-Strength Class A zinc-5% aluminum misch-metal alloycoated steel core (/MS). 
Extra-High-Strength Class A zinc-5% aluminum misch-metal alloy-coated steel core (/EMS). 
Ultra-High-Strength Class A zinc-5% aluminum misch-metal alloy-coated steel core (/UMS). 
Aluminum-clad steel core (/AW). 
High-Strength aluminum-clad steel core (/HSAW)
Extra-High-Strength aluminum-clad steel core (/EHSAW). 
Ultra-High-Strength aluminum-clad steel core (/UHSAW). 
250° C Operating Temperature rating utilizing either the zinc-5% aluminum misch-metal alloy-coated steel core wires, or the aluminum-clad steel core wires.

6.Huatong Cable Inc. 
 (1),More than 30 years experience.
 (2) ,100,000m² factory,200 staffs,annual output 100,000 metic tons.
 (3),Sound Quality Control
    --Material inspection;
    --manufacturing inspection;
    -- Finished products inspection;
    -- Inspection before delivery.
    --Third party inspection.
    -- Inspection of storage at port of departure.
 (4),ISO Certificated.
 (5) ,Plenty of material and lobor gurantee the delivery prompt and price competitive.
 (6),24/7 service.

7..Standard reference.

Code	Size	Type	Stranding				Nominal Overall Diameter		Cross Section
			Aluminum		Steel
	AWG or kcmil		No. Al Wires	No. Al Layers	No. of Wires	Diameter	CDR	Steel Core	Al	Total
						in	in		in2
Flicker/ACSS/TW	477.0	13	18	2	7	0.0940	0.78	0.2820	0.3748	0.4234
Hawk/ACSS/TW	477.0	16	18	2	7	0.1053	0.79	0.3159	0.3745	0.4355
Parakeet/ACSS/TW	556.5	13	18	2	7	0.1015	0.84	0.3045	0.4372	0.4938
Dove/ACSS/TW	556.5	16	20	2	7	0.1138	0.85	0.3414	0.4371	0.5083
Rook/ACSS/TW	636.0	13	18	2	7	0.1085	0.89	0.3255	0.4994	0.5641
Grosbeak/ACSS/TW	636.0	16	20	2	7	0.1216	0.91	0.3648	0.4996	0.5809
Tern/ACSS/TW	795.0	7	17	2	7	0.0888	0.96	0.2664	0.6247	0.6680
Puffin/ACSS/TW	795.0	11	21	2	7	0.1108	0.98	0.3324	0.6241	0.6916
Condor/ACSS/TW	795.0	13	21	2	7	0.1213	0.99	0.3639	0.6242	0.7051
Drake/ACSS/TW	795.0	16	20	2	7	0.1360	1.01	0.4080	0.6242	0.7259
Phoenix/ACSS/TW	954.0	5	30	3	7	0.0837	1.04	0.2511	0.7497	0.7882
Rail/ACSS/TW	954.0	7	32	3	7	0.0971	1.06	0.2913	0.7493	0.8011
Cardinal/ACSS/TW	954.0	13	21	2	7	0.1329	1.08	0.3987	0.7492	0.8463
Snowbird/ACSS/TW	1033.5	5	30	3	7	0.0871	1.09	0.2613	0.8115	0.8532
Ortolan/ACSS/TW	1033.5	7	33	3	7	0.1010	1.10	0.3030	0.8112	0.8673
Curlew/ACSS/TW	1033.5	13	21	2	7	0.1383	1.13	0.4149	0.8118	0.9170
Avocet/ACSS/TW	1113.0	5	30	3	7	0.0904	1.13	0.2712	0.8737	0.9186
Bluejay/ACSS/TW	1113.0	7	33	3	7	0.1049	1.14	0.3147	0.8746	0.9351
Finch/ACSS/TW	1113.0	13	39	3	19	0.0862	1.18	0.4310	0.8737	0.9845
Oxbird/ACSS/TW	1192.5	5	30	3	7	0.0936	1.17	0.2808	0.9361	0.9843
Bunting/ACSS/TW	1192.5	7	33	3	7	0.1086	1.18	0.3258	0.9368	1.0016
Grackle/ACSS/TW	1192.5	13	39	3	19	0.0892	1.22	0.4460	0.9369	1.0556
Scissortail/ACSS/TW	1272.0	5	30	3	7	0.0967	1.20	0.2901	0.9994	1.0508
Bittern/ACSS/TW	1272.0	7	33	3	7	0.1121	1.22	0.3363	0.9994	1.0685
Pheasant/ACSS/TW	1272.0	13	39	3	19	0.0921	1.26	0.4605	0.9987	1.1252
Dipper/ACSS/TW	1351.5	7	33	3	7	0.1155	1.25	0.3465	1.0616	1.1350
Martin/ACSS/TW	1351.5	13	39	3	19	0.0949	1.30	0.4745	1.0610	1.1954
Bobolink/ACSS/TW	1431.0	7	33	3	7	0.1189	1.29	0.3567	1.1243	1.2020
Plover/ACSS/TW	1431.0	13	39	3	19	0.0977	1.33	0.4885	1.1242	1.2666
Lapwing/ACSS/TW	1590.0	7	36	3	7	0.1253	1.36	0.3759	1.2488	1.3351
Falcon/ACSS/TW	1590.0	13	39	3	19	0.1030	1.40	0.5150	1.2483	1.4066
Chukar/ACSS/TW	1780.0	8	38	3	19	0.0874	1.45	0.4370	1.3982	1.5122
Bluebird/ACSS/TW*	2156.0	8	64	4	19	0.0961	1.61	0.4805	1.6934	1.8312
Mohawk/ACSS/TW	571.7	13	18	2	7	0.103	0.846	0.309	0.4489	0.5072
Calumet/ACSS/TW	565.3	16	20	2	7	0.1146	0.858	0.3438	0.4438	0.5161
Mystic/ACSS/TW	666.6	13	20	2	7	0.1111	0.913	0.3333	0.5236	0.5915
Oswego/ACSS/TW	664.8	16	20	2	7	0.1244	0.927	0.3732	0.5222	0.6073
Maumee/ACSS/TW	768.2	13	20	2	7	0.1195	0.977	0.3585	0.6032	0.6817
Wabash/ACSS/TW	762.8	16	20	2	7	0.1331	0.99	0.3993	0.5989	0.6963
Kettle/ACSS/TW	957.2	7	32	3	7	0.0973	1.06	0.2919	0.7518	0.8038
Suwannee/ACSS/TW	959.6	16	22	2	7	0.1493	1.108	0.4479	0.7539	0.8764
Cheyenne/ACSS/TW	1168.1	5	30	3	7	0.0926	1.155	0.2778	0.917	0.9642
Genesee/ACSS/TW	1158.0	7	33	3	7	0.1078	1.165	0.3234	0.9094	0.9732
Hudson/ACSS/TW	1158.4	13	26	2	7	0.1467	1.196	0.4401	0.9096	1.0279
Catawba/ACSS/TW	1272.0	5	30	3	7	0.0967	1.203	0.2901	0.9993	1.0507
Nelson/ACSS/TW	1257.1	7	35	3	7	0.1115	1.213	0.3345	0.9875	1.0558
Yukon/ACSS/TW	1233.6	13	38	3	19	0.091	1.25	0.455	0.9685	1.0921
Truckee/ACSS/TW	1372.5	5	30	3	7	0.1004	1.248	0.3012	1.0783	1.1337
Mackenzie/ACSS/TW	1359.7	7	36	3	7	0.1159	1.259	0.3477	1.0674	1.1413
Thames/ACSS/TW	1334.6	13	39	3	19	0.0944	1.29	0.472	1.0479	1.1808
St.Croix/ACSS/TW	1467.8	5	30	3	7	0.1041	1.292	0.3123	1.1532	1.2127
Miramichi/ACSS/TW	1455.3	7	36	3	7	0.12	1.299	0.36	1.1427	1.2219
Merrimack/ACSS/TW	1433.6	13	39	3	19	0.0978	1.34	0.489	1.1255	1.2682
Platte/ACSS/TW	1569.0	5	33	3	7	0.1074	1.334	0.3222	1.2328	1.2962
Potomac/ACSS/TW	1557.4	7	36	3	7	0.1241	1.345	0.3723	1.2237	1.3084
Rio Grande/ACSS/TW	1533.3	13	39	3	19	0.1012	1.379	0.506	1.2046	1.3574
Schuylkill/ACSS/TW	1657.4	7	36	3	7	0.128	1.386	0.384	1.3012	1.3912
Pecos/ACSS/TW	1622.0	13	39	3	19	0.1064	1.424	0.532	1.2736	1.4425
Pee Dee/ACSS/TW	1758.6	7	37	3	7	0.1319	1.431	0.3957	1.3811	1.4768
James/ACSS/TW	1730.6	13	39	3	19	0.1075	1.47	0.5375	1.3598	1.5322
Athabaska/ACSS/TW	1949.6	7	42	3	7	0.1392	1.504	0.4176	1.5318	1.6384
Cumberland/ACSS/TW	1926.9	13	42	3	19	0.1133	1.545	0.5665	1.5129	1.7044
Santee/ACSS/TW	2627.3	8	64	4	19	0.1062	1.762	0.531	2.0645	2.2328