ACSR/AW, Aluminium Conductors Aluminium Clad Steel Reinforced (UNE 21018)
Applications
Overhead transmission and distribution lines.
Medium, High and Extra High voltage. Specially recommended in corrosive environments or in coastal areas.
Manufacture Process
Aluminium melting,continuous casting and rolling.
Drawing.
Stranding of aluminium clad steel cores.
Stranding of aluminium layers.
Properties
Aluminium clad steel is a high strength steel, covered by a thick coating of pure aluminium (10% wire radious min.), which is cold drawn to obtain required characteristics and final wire size.
The aluminium clad steel wires, in comparison with galvanized steel wires of same size, have the same tensile characteristics, but a lower weight and a considerably higher electrical conductivity and corrosion resistance.
This last property is specially important in the construction of the finished conductor, where the aluminium wires are in contact with the aluminium clad steel wires of the reinforcing core, thus avoiding the possibility of galvanic corrosion between core and surrounding layers of aluminium.
| ALUMINIUM CONDUCTORS-ALUMINIUM CLAD STEEL REINFORCED |
| Code number | Cross section | Cu Equiv. | Stranding & wire diam. | Overall diam | Unit weight | Rated strength | Electr. resist. at 20ºC |
| mm2 | mm2 | mm2 | mm2 | Nºx mm | Nºx mm | mm | kg/km | kg/km | kg/km | KN | ohm/km |
| Aluminium | AW | Total |
| Aluminium | Steel |
| Aluminium | Aw | Total |
|
|
| LARL-30 | 26,7 | 4,4 | 31,1 | 17,5 | 6x2,38 | 1x2,38 | 7,14 | 73,2 | 29,3 | 102,5 | 10,2 | 1,0175 |
| LARL-56 | 46,8 | 7,8 | 54,6 | 30,0 | 6x3,15 | 1x3,15 | 9,45 | 128,3 | 51,4 | 179,7 | 7,2 | 0,5808 |
| LARL-78 | 67,4 | 11,2 | 78,6 | 44,0 | 6x3,78 | 1x3,78 | 11,34 | 185,0 | 74,0 | 259,0 | 23,0 | 0,4033 |
| LARL-145 | 119,3 | 27,8 | 147,1 | 78,0 | 30x2,25 | 7x2,25 | 15,75 | 330,0 | 184,0 | 514,0 | 55,1 | 0,2244 |
| LARL-180 | 147,3 | 34,3 | 181,6 | 97,0 | 20x2,50 | 7x2,50 | 17,50 | 407,0 | 227,0 | 634,0 | 66,3 | 0,1818 |
| LARL-280 | 241,7 | 39,4 | 281,1 | 157,0 | 26x3,44 | 7x2,68 | 21,80 | 667,0 | 262,0 | 929,0 | 87,6 | 0,1131 |
| LARL-380 | 337,3 | 43,7 | 381,0 | 217,0 | 54x2,82 | 7x2,82 | 25,38 | 932,0 | 290,0 | 1.222,0 | 109,6 | 0,0820 |
| LARL-455 | 402,3 | 52,2 | 454,4 | 259,0 | 54x3,08 | 7x3,08 | 27,72 | 1.112,0 | 345,0 | 1.457,0 | 129,4 | 0,0688 |
| LARL-516 | 483,4 | 33,4 | 516,8 | 311,0 | 45x3,70 | 7x2,47 | 29,61 | 1.339,0 | 221,0 | 1.560,0 | 117,4 | 0,0585 |
| LARL-545 | 484,5 | 62,8 | 547,3 | 312,0 | 54x3,38 | 7x3,38 | 30,42 | 1.339,0 | 416,0 | 1,755,0 | 153,2 | 0,0571 |
| LARL-635 | 565,0 | 71,6 | 636,6 | 364,0 | 54x3,65 | 19x2,19 | 32,85 | 1.562,0 | 475,0 | 2.037,0 | 177,5 | 0,0490 |
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