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Do you know the history of aluminum alloy cables?

Jan. 07, 2017

The history of aluminum alloy cables has a life span of more than 100 years. Since the publication of the IEC 60288 standard or the American National Electrical Code (NEC), aluminum wiring became recognized worldwide.

Due to shortages of copper during the Second World War electrical equipment manufacturers started offering aluminum cables more than they had before. Since aluminum is extracted from bauxite, supply of bauxite during this time was very high. Nowadays, the prices of aluminum cables are lower than the prices of copper cables.


aluminum alloy cable


Up till the 1960s, the aluminum alloy 1350 was used. This conductor was round and essentially existed out of pure aluminum. Mid 1970s however, problems started to arise with the aluminum conductor 1350. The complaints involved matters such as termination failures by overheated and loose connections at power plants. This in turn resulted in fires caused by usage of the aluminum alloy. Since then, a lot of different cables have been developed, tested and used in several industries. Many industries prefer aluminum cables for its light weight in comparison to copper cables. Some examples are: All Aluminum Conductors (AAC), All Aluminum Alloy Conductors (AAAC), Aluminum Conductors Steel Reinforced (ACSR) and flexible conductors.


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