1. AAAC / All Aluminum Alloy Conductor Application
Used as bare overhead conductor for primary and secondary distribution. Designed utilizing a high-strength aluminum-alloy to achieve a high strength-to-weight ratio; affords good sag characteristics. (1)AAAC conductors are extensively used for overhead distribution and transmission lines adjacent to ocean coastlines where there can be a problem of corrosion in the steel of an ACSR construction. (2)The aluminum alloy conductors are used in replace of single-layer ACSR conductors to reduce power loss in overhead distribution and transmission lines,when replacing the aluminum conductor steel reinforced , the AAAC can save 5-8% of the construction cost. (3)AAAC referred to have higher strength but lower conductivity than pure aluminum Being lighter, alloy conductors can sometimes be used to advantage in replace of the more conventional ACSR.
2. AAAC / All Aluminum Alloy Conductor Standard
ASTM B399,BS EN50183 ,BS 3242,DIM 48201,IEC 61089 FEATURES :AAAC / All Aluminum Alloy Conductor Features Aluminum alloy conductors have a number of advantages over the use of the ACSR or AAC(all aluminum conductors). Lower power losses than for equivalent single aluminum-layer ACSR conductors. (The inductive effect of the steel core in the ACSR is eliminated). • Simpler fittings than those required for ACSR. • Excellent corrosion resistance in environments conducive to galvanic corrosion in ACSR. • Strength and sag approximately the same as for equivalent 6/1 and 26/7 ACSR conductors. • Outside diameters are the same as for standard ACSR conductors, permitting interchangeability of fittings. • Greater resistance to abrasion than that for 1350 wires in all-aluminum or ACSR conductors. • High tensile strength as compared to AAC conductor. • Higher conductivity as compared to ACSR conductor. PARAMETER-1 : AAAC / Aluminum Alloy Conductors BS EN 50183
Area. mm2
No. of Wires
Diameter
Weight kg/km
Rated Strength kN
D.C. Resistance at 20℃ ohm/km
Standard Length m±5%
Wire mm
Cond mm
15.9
7
1.7
5.1
43.3
4.69
2.0701
3000
24.2
7
2.1
6.3
66.2
7.15
1.3566
3000
34.4
7
2.5
7.5
93.8
10.14
0.9572
3000
49.5
7
3
9
135.1
14.6
0.6647
3000
48.3
19
1.8
9
132.7
14.26
0.6841
3000
65.8
19
2.1
10.5
180.7
19.41
0.5026
2000
93.3
19
2.5
12.5
256
27.51
0.3546
2000
117
19
2.8
14
321.2
34.51
0.2827
2000
147.1
37
2.25
15.8
405.3
43.4
0.2256
2000
181.6
37
2.5
17.5
500.3
53.58
0.1827
2000
242.5
61
2.25
20.3
670.3
71.55
0.1373
2000
299.4
61
2.5
22.5
827.5
88.33
0.1112
2000
400.1
61
2.89
26
1105.9
118.04
0.0832
2000
499.8
61
3.23
29.1
1381.4
147.45
0.0666
2000
626.2
91
2.96
32.6
1737.7
184.73
0.0534
2000
802.1
91
3.35
36.9
2225.8
236.62
0.0417
2000
999.7
91
3.74
41.1
2774.3
294.91
0.0334
2000
PARAMETER-2 : All Aluminum Alloy Conductors (AAAC) BS EN 50182