Section I Aluminumthe Metal Chapter 2（节我Aluminumthe金属第二章）.pdfVIP

Section I Aluminum-the Metal Chapter 2 Aluminum Conductor Properties and Advantages The mechanical and electrical properties of bare alu­ The Effect of Alloying minum wire and stranded conductor are tabulated in A detailed study of aluminum applications usually Chapter 4 and of bus conductor in Chapter 13. Certaln involves aluminum alloys that have properties markedly general properties related to the use of aluminum, as different from those of the basic metal. Thus, less than 2.0 distinct from other metals, in their application as electrical percent addition of other metals supplemented by a conductors are discussed in this chapter. Principally, specified heat treatment converts nearly pure aluminum these are: to 6101-T6 electrical bus conductor with an increase in I. Conductivity: More than twice that of copper, per minimum yield strength from 3.5 ksi to 25.0 ks!. The pound. reduction of conductivity associated with this major 2. Light weight: Ease of handling, low installation change of strength is only from 61.0 percent lACS to costs, longer spans, and mOre distance between 55.0 percent lACS. pull-ins. Merely adding the alloying elements to the mixture 3. Strength: A range of strengths from dead soft to is not sufficient to produce the desired results. The that of mild steel, depending on alloy. The high­ strength of the non-he