Through the introduction of lead design followed with examples, discussion is made on the minimum metal wastage, and provided that lead section used in certain part is relatively scientific and economical.

• 介绍了导线设计的一般规定,并通过举例分析法,论证了按金属消耗量最小条件,分段选择导线截面是比较科学经济,符合当前经济条件。