All Aluminum Alloy Conductor (AAAC) Cables to ASTM B399 /B399M Standard
APPLICATION of tano cable aaac conductor
AAAC is mainly used as bare overhead transmission cable and as primary and secondary distribution cable. It is also suitable for laying across basins, rivers and valleys where special geographical textures exist.
STANDARD of tano cable aaac conductor
Basic design to ASTM B399 / B399M standard.
CONSTRUCTION
AAAC cable consists of aluminum alloy wires. The aluminum alloy wires are concentrically stranded. This section deals with heat-treatable magnesium silicon type aluminium alloys to the applicable international standard, the electrical and mechanical properties of which all fall within the values suggested by relevant standard. Conductors to all other recognized specifications can also be supplied. The alloys referred to have higher strength but lower conductivity than pure aluminium. Being lighter, alloy conductors can sometimes be used to advantage in place of the more conventional ACSR; Having lower breaking loads than the later, their use becomes particularly favourable when ice and wind loadings are low.
ELECTRICAL PROPERTIES of tano cable aaac conductor
Density@20ºC
2.70 kg/dm
Temperature Coefficient@20°C
0.00360 (°C)
Resistivity@20°C
0.0326 Ohms mm2 /m
Linear Expansivity
23 x10-6 (°C)
SERVICE CONDITIONS of tano cable aaac conductor
Ambient Temperature
-5°C - 50°C
Wind Pressure
80 – 130kg/m2
Seismic Acceleration
0.12 - 0.05g
Isokeraunic Level
10 – 18
Relative Humidity
5 – 100%
CONSTRUCTION PARAMETERS of tano cable aaac conductor
Nominal Area
Stranding
Overall
Weight
Rated
Electrical
Current
Diameter
Strength
Resistance
Rating*
AWG&MCM
mm2
No.×mm
mm
kg/km
KN
Ω/Km
A
6
13.2
7/1.55
4.65
36.2
4.18
2.5361
69
4
21.1
7/1.96
5.88
57.9
6.69
1.586
93
2
33.5
7/2.47
7.41
92
10.6
0.9987
123
0
53.5
7/3.12
9.36
146.8
17
0.62592
165
2/0
67.3
7/3.50
10.5
184.8
20.4
0.49738
190
3/0
84.9
7/3.93
11.79
233
25.7
0.3945
219
4/0
107
7/4.42
13.26
294.7
32.5
0.31188
253
250
126
19/2.91
14.55
346.7
38.8
0.26509
280
300
152
19/3.19
15.95
416.7
46.6
0.22059
313
350
178
19/3.45
17.25
487.3
52
0.1886
345
400
203
19/3.69
18.45
557.5
59.5
0.16486
375
450
228
19/3.91
19.55
626
66.8
0.14683
402
500
253
19/4.12
20.6
695
74.2
0.13224
429
550
279
37/3.10
21.7
766.2
83.9
0.11995
455
600
303
37/3.23
22.61
831.9
91
0.11049
478
650
330
37/3.37
23.59
905.5
94.9
0.1015
504
700
354
37/3.49
24.43
971.2
101
0.09464
525
750
381
37/3.62
25.34
1045
109
0.08796
549
800
404
37/3.73
26.11
1109
116
0.08285
569
900
456
37/3.96
27.72
1250
131
0.07351
612
1000
508
37/4.18
29.26
1393
146
0.06597
653
1250
631
61/3.63
32.67
1732
179
0.05306
743
1500
759
61/3.98
35.82
2082
215
0.04414
827
1750
886
61/4.30
38.7
2431
251
0.03781
904
(*) Note: The values of current rating mentioned in above Table are based on wind velocity of 0.6 metre/second, solar heat radiation of 1200 watt/metre2, ambient temperature of 50° C & conductor temperature of 80°C.
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