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Bare Aluminum Conductor

AAC

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AAC consists of Aluminum alloy 1350-H19 wires, concentrically stranded. 

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Stranded 1350 aluminum conductors shown in this section of data are classified as follows:
Class AA For bare conductors usually used in overhead lines.
Class A For conductors to be covered with weather-resistant materials and for bare conductors where greater flexibility is required.
Compact strand conductor for use in bare overhead applications or for use with weather-resistant coverings or insulations is also available.
Classes refer to stranding and are an indication of relative conductor flexibility, AA being the least flexible, C the most flexible.

 

Construction
Aluminum alloy 1350-H19 wires, concentrically stranded.

Specifications
AAC bare conductors meet or exceed the following ASTM specifications :
B-230 Aluminum Wire, 1250-H19 for Electrical Purposes
B-231 Aluminum Conductors, Concentric-Lay-Stranded
B-400 Compact Round Concentric-Lay-Stranded Aluminum 1350 Conductors

 

AAC EN50182

de Name Nominal Aluminum Area  Stranding and Wire Diameter  Sectional Area  Approximate Overall Diameter  Linear Mass  Calculated Breaking Load  Calculated D.C. Resistance at 20℃  Current Rating
mm2 mm mm2 mm kg/km daN Ω/km A
Midge 22 7/2.06 23.33  6.18  64 399 1.2270  114
Aphis 25 7/3.35 26.40  7.20  73 411 1.0810  134
Gnat 25 7/2.21 26.80  6.60  73 459 1.0660  135
Weevil  30 3/3.66 31.60  7.90  86 486 0.9082  163
Mosquito  35 7/2.59 37.00  7.80  101 603 0.7762  188
Ladybird 40 7/2.79 42.80  8.40  117 687 0.6689  210
Ant 50 7/3.10 52.83  9.30  145 828 0.5419  181
Fly 60 7/3.40 63.55  10.20  174 990 0.4505  199
Bluebottle 70 7/3.66 73.70  11.00  202 1134 0.3881  228
Earwig  75 7/3.78 78.50  11.40  215 1194 0.3644  242
Grasshopper  80 7/3.91  84.10  11.70  230 1278 0.3406  251
Clegg 90 7/4.17 95.60  12.50  262 1453 0.2994  285
Wasp 100 7/4.39  106.00  13.17  290 1600 0.2702  271
Beetle 100 19/2.67 106.00  13.40  293 1742 0.2704  295
Bee 125 7/4.90 132.00  14.70  361 1994 0.2169  330
Cricket 150 7/5.36  157.90  16.10  432 2385 0.1818  395
Hornet 150 19/3.25  157.60  16.25  434 2570 0.1825  346
Caterpillar 175 19/3.53 186.00  17.70  512 2863 0.1547  410
Chafer 200 19/3.78  213.20  18.90  587 3240 0.1349  414
Spider 225 19/3.99  236.90  20.00  652 3601 0.1211  462
Cockroach 250 19/4.22 265.70  21.10  731 4040 0.1083  470
Butterfly 300 19/4.65  322.70  23.25  888 4875 0.0892  528
Moth 350 19/5.00  373.20  25.00  1027 5637 0.0771  612
Drone 350 37/3.58 373.30  25.10  1029 5745 0.0774 

 

AAC is used mainly in urban areas where the spacing is short and the supports are closer together. The advantage of AAC conductors is that they have a high degree of corrosion resistance; for this reason they are used extensively in coastal areas. AAC Conductors were developed as a consequence of the galvanic corrosion that ACSR conductors are susceptible to.

AAC(2016-01-05 )

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