过去电器工业上大量使用铜材作为导电体,其中很大一部分是以导线的形式被应用着。如果能用铝来代铜作为导体,不仅在通过相等的电量时,可以节约一半左右的战本,而且导体本身的重量将减轻一半。更重要的是铜的贮存量比铝少得多,以我国目前情况来看,以铝代铜是促进工业发展的重要措施之一。兹将以铝代铜的经济意义作如下简要比较: In the past, a large amount of copper was used as electrical conductor in the electrical industry, a large part of which was applied in the form of wires. If aluminum can be used as a conductor instead of copper, not only will it save about half the battle when passing the same amount of electricity, but the weight of the conductor itself will be halved. More importantly, the storage capacity of copper is much less than that of aluminum. From the current situation in China, taking aluminum as a substitute for copper is one of the important measures to promote industrial development. The economic significance of aluminum on behalf of copper will be briefly compared as follows: