AAC are a refined Aluminium stranded conductor with a minimum metal purity of 99.7%. It is principally used in urban areas where spacing is short and the supports are close. It can be used in coastal regions owing to its high degree of corrosion resistance and is also used extensively within the Railway and Metro industries.
1. Application
AAC are a refined Aluminium stranded conductor with a minimum metal purity of 99.7%. It is principally used in urban areas where spacing is short and the supports are close. It can be used in coastal regions owing to its high degree of corrosion resistance and is also used extensively within the Railway and Metro industries.\
category:Bare Conductor
2. Standards
Basic design to BS 215-1 / BS EN 50182 / IEC 61089 / ASTM B 231/B 231M / DIN 48201-5 standards
3. Cable Construction
Concentric lay stranded Aluminium Conductor ( AAC) is made up of one or more strands of hard drawn 1350 aluminum alloy. These conductors are used in low, medium and high voltage overhead lines. AAC has seen extensive use in urban areas where spans are usually short but high conductivity us required. The excellent corrosion resistance of aluminium has made AAC a conductor of choice in coastal areas. Because of its relatively poor strength to weight ratio, AAC had limited use in transmission lines and rural distribution because of long spans utilized. All aluminium conductors are made up of one or more strands of aluminium wire dep.
4. Electrical Properties
Density@20ºC | 2.703 kg/dm |
Temperature Coefficient@20°C | 0.00403 (°C) |
Resistivity@20°C | 0.028264 |
Linear Expansivity | 23 x10-6 (°C) |
5. Service Conditions
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% |
Density@20ºC | 2.703 kg/dm |
Temperature Coefficient@20°C | 0.00403 (°C) |
Resistivity@20°C | 0.028264 |
Linear Expansivity | 23 x10-6 (°C) |
6. All Aluminum Conductors (AAC) IEC 61089 Standard
Code |
Nominal cross-sectional area |
Numberofstrands | Diameter |
Approximate weight of cable |
Nominal BreakingLoad |
MaximumDC Resistanceat20℃ |
|
Single wire | Conductor | ||||||
mm² | mm | mm | kg/km | kN | Ω/km | ||
10 | 10 | 7 | 1.35 | 4.05 | 27.4 | 1.95 | 2.8633 |
16 | 16 | 7 | 1.71 | 5.12 | 43.8 | 3.04 | 1.7896 |
25 | 25 | 7 | 2.13 | 6.40 | 68.4 | 4.50 | 1.1453 |
40 | 40 | 7 | 2.70 | 8.09 | 109.4 | 6.80 | 0.7158 |
63 | 63 | 7 | 3.39 | 10.2 | 172.3 | 10.39 | 0.4545 |
100 | 100 | 19 | 2.59 | 12.9 | 274.8 | 17.00 | 0.2877 |
125 | 125 | 19 | 2.89 | 14.5 | 343.6 | 21.25 | 0.2302 |
160 | 160 | 19 | 3.27 | 16.4 | 439.8 | 26.40 | 0.1798 |
200 | 200 | 19 | 3.66 | 18.3 | 549.7 | 32.00 | 0.1439 |
250 | 250 | 19 | 4.09 | 20.5 | 687.1 | 40.00 | 0.1151 |
315 | 315 | 37 | 3.29 | 23.0 | 867.9 | 51.97 | 0.0916 |
400 | 400 | 37 | 3.71 | 26.0 | 1102.0 | 64.00 | 0.0721 |
450 | 450 | 37 | 3.94 | 27.5 | 1239.8 | 72.00 | 0.0641 |
600 | 600 | 37 | 4.15 | 29.0 | 1377.6 | 80.00 | 0.0577 |
560 | 560 | 37 | 4.39 | 30.7 | 1542.9 | 89.60 | 0.0515 |
630 | 630 | 61 | 3.63 | 32.6 | 1738.3 | 100.80 | 0.0458 |
710 | 710 | 61 | 3.85 | 34.6 | 1959.1 | 113.60 | 0.0407 |
800 | 800 | 61 | 4.09 | 36.8 | 2207.4 | 128.00 | 0.0361 |
900 | 900 | 61 | 4.33 | 39.0 | 2483.3 | 144.00 | 0.0321 |
1000 | 1000 | 61 | 4.57 | 41.1 | 2759.2 | 160.00 | 0.0289 |
1120 | 1120 | 91 | 3.96 | 43.5 | 3093.5 | 179.20 | 0.0258 |
1250 | 1250 | 91 | 4.18 | 46.0 | 3452.6 | 200.00 | 0.0231 |
1400 | 1400 | 91 | 4.43 | 48.7 | 3866.9 | 224.00 | 0.0207 |
1500 | 1500 | 91 | 4.58 | 50.4 | 4143.1 | 240.00 | 0.0193 |