Last week’s post, we shared the composition and material density of copper, aluminium and aluminium alloy. That determines the strength and conductivity of each material. The chart above shows the comparison between copper and three different grades of aluminium. The unique properties of each grade of material makes it suitable for different uses. For instance:

Cu:  Underground cables / housing wires / control & instrument cables (Class 2 and Class 5/6 type conductors)

1350 H12:  Underground, aerial or bare conductors

6101 or 6201:  Messenger cables / neutral


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