Aluminum alloy cables offer significant advantages during installation thanks to their excellent corrosion resistance, flexibility, small bending radius, and lightweight nature. Their stable power delivery also greatly reduces the incidence of unexpected failures. Even more attractive is their low cost; this not only saves on construction expenses but also lowers the risk of on-site theft, thereby greatly benefiting project schedule management.
However, aluminum alloy cables also face challenges in practical application. First, installation requires specialized aluminum alloy terminal connectors, which somewhat limits their widespread adoption. Furthermore, compared to copper cables, aluminum alloy cables have slightly lower electrical conductivity and a larger outer diameter for the same current-carrying capacity; consequently, space allocation and current-carrying requirements must be carefully considered. If the use of aluminum alloy cables is not anticipated during the design phase, improper installation standards could lead to rework and increased modification costs.
Additionally, the lack of a clearly defined fire-resistance rating for aluminum alloy cables complicates construction project management and coordination. In high-temperature or fire-prone environments, these cables may lose their conductivity due to melting, making them unsuitable for use as fire-resistant conductors or in densely populated urban power distribution networks. Although aluminum alloy cables have been used in my country for a relatively short time, existing cases indicate that their potential risks cannot be ignored.
