Overhead Line AAC Conductor-All Aluminum Conductor
Application: AAC used in overhead electric power transmission and distribution lines with various grade voltages. Mainly used in urban areas for electricity transfer where the spacing is short and the supports are closer together. Apart from that, these conductors are also extensively used in coastal area because of their corrosion resistance properties.
Construction:
Aluminum 1350-H19 wires, concentrically stranded.
The most commonly used stranding consists of 7, 19, 37, 61 and 91 wires.
Bare concentric-lay-stranded aluminum wires constructed with a straight round central aluminum wire surrounded by one or more layers of helically laid aluminum wires.
In all constructions, the successive layers shall have opposite directions of lay, the outermost layer being right-handed.
BS Standard All Aluminium Stranded Conductors Parameter
Code Name
Area
Stranding and wire diameter
Approx. Overall diameter
Weight
Nominal breaking load
Nom. DC resistance at 20 deg.
Nominal(mm2)
Actual(mm2)
mm
mm
kg/km
kN
ohm/km
MIDGE
22
23.33
7/2.06
6.2
64
3.99
1.227
APHIS
25
26.4
3/3.35
7.2
73
4.11
1.081
GNAT
25
26.8
7/2.21
6.6
73
4.59
1.066
WEEVIL
30
31.6
3/3.66
7.9
86
4.86
0.9082
MOSQUITO
35
37
7/2.59
7.8
101
6.03
0.7762
LADYBIRD
40
42.8
7/2.79
8.4
117
6.87
0.6689
ANT
50
52.83
7/3.10
9.3
145
8.28
0.5419
FLY
60
63.55
7/3.40
10.2
174
9.9
0.4505
BLUEBOTTLE
70
73.7
7/3.66
11
202
11.34
0.3881
EARWING
75
78.5
7/3.78
11.4
215
11.94
0.3644
GRASSHOPPER
80
84.1
7/3.91
11.7
230
12.78
0.3406
CLEGG
90
95.6
7/4.17
12.5
262
14.53
0.2994
WASP
100
106
7/4.39
13.2
290
16
0.2702
BEETLE
100
106.6
19/2.67
13.4
293
17.42
0.2704
BEE
125
132
7/4.90
14.7
361
19.44
0.2169
CRICKET
150
157.9
7/5.36
16.1
432
23.85
0.1818
HORNET
150
157.6
19/3.25
16.3
434
25.7
0.1825
CATERPILLAR
175
186
19/3.53
17.7
512
28.63
0.1547
CHAFER
200
213.2
19/3.78
18.9
587
32.4
0.1349
SPIDER
225
236.9
19/3.99
20
652
36.01
0.1211
COCKROACH
250
265.7
19/4.22
21.1
731
40.4
0.1083
BUTTERFLY
300
322.7
19/4.65
23.3
888
48.7
0.08916
BS Standard All Aluminium Stranded Conductors Parameter