Analysis of conductivity and current carrying capacity of aluminum conductor

The demand of electricity is ever increasing and gives a high pressure on the existing transmission network. Building up so many towers for power transmitting need a high expenditure. To overcome this problem, conductor as transmission line with capability to conduct more current is needed. Aluminum is a good current conductor; low in cost and lighter weight compare to copper. These advantages enhance the usage of aluminum conductor as overhead line of transmission system. But the weakness is on mechanical part, which is not practical to ambient condition. This paper focuses on the factors that influence the conductivity and current carrying capacity of aluminum conductor. Some experimental results that verify the theoretical values are presented.