Aluminium Conductor, Aluminum Clad Steel Supported
 
Construction
ACSS/AW is a composite concentric-lay-stranded conductor. Steel strands form the central core of the conductor with one or more layers of 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 an aluminum coating. The aluminum-clad steel core may consist of 7, 19, 37 or more wires. Numerous combinations of aluminum and steel strand and layers are possible.
 
Features
The AW core, which consists of a thick layer of aluminum (approx. 10% of the nominal wire/radius) over steel, gives ACSS/AW conductors the advantages of standard ACSS along with the light weight and good conductivity of aluminum and the high tensile strength and ruggedness of steel. ACSS/AW can operate continuously at high temperatures (250°C) without damage, allowing for a significant increase in conductor current-carrying capacity. The cross-sections above illustrate some common stranding.

Light weight
Good conductivity
High tensile strength
 
Specification
Tinde Power's ACSS/AW conductor meets or exceeds the following ASTM specifications:

B609 Aluminum 1350 Round Wire, Annealed and Intermediate Tempers, for Electrical Purposes.
B502 Aluminum-Clad Steel Core Wire for Aluminum conductors, Aluminum-Clad Steel Reinforced.
B856 Concentric-Lay-Stranded Aluminum Conductors, Coated Steel Supported (ACSS).
The strandings available are identical to those listed in ASTM specification B232. 


BS EN 50182:2001
 

Code Name	Stranding&wire diameter	Approx Overall diameter	Total area	Weight	Breaking Load	DC Resistance at 20	Current Rating
	mm	mm	mm 2	Kg/km	KN	Ohm/km	A
Box	7/1.85	5.55	18.8	51.4	5.55	1.748	93
Acacia	7/2.08	6.24	23.9	64.9	7.02	1.3828	110
Almond	7/2.34	7.02	30.1	82.2	8.88	1.0926	128
Cedar	7/2.54	7.62	35.5	96.8	10.46	0.9273	132
Deodar	7/2.77	8.31	42.2	115.2	12.44	0.7797	148
Fir	7/2.95	8.85	47.8	130.6	14.11	0.6875	161
Hazel	7/3.30	9.9	59.9	163.4	17.66	0.5494	184
Pine	7/3.61	10.8	71.6	195.6	21.14	0.4591	204
Holly	7/3.91	11.7	84.1	229.5	24.79	0.3913	222
Willow	7/4.04	12.1	89.7	245	26.47	0.3665	233
Oak	7/4.65	13.95	118.9	324.5	35.07	0.2767	272
Mulbery	19/3.18	15.9	150.9	414.3	44.52	0.2192	319
Ash	19/3.48	17.4	180.7	496.1	53.31	0.183	354
Elm	19/3.76	18.8	211	579.2	62.24	0.1568	385
Poplar	37/2.87	20.1	239.4	659.4	70.61	0.1387	414
Sycamore	37/3.23	22.6	303.2	835.2	89.4	0.1095	487
Upas	37/3.53	24.7	362.1	997.5	106.82	0.0917	527
Yew	37/4.06	28.4	479	1319.6	141.31	0.0693	629
Totara	37/4.14	29.42	498.1	1372.1	146.93	0.0666	640
Rubus	61/3.50	31.5	586.9	1622	173.13	0.0567	716
Sorbus	61/3.71	33.4	659.4	1822.5	194.53	0.0505	760
Araucaria	61/4.14	37.3	821.1	2269.5	242.24	0.0406	842
Redwood	61/4.56	41	996.2	2753.2	293.88	0.0334	920