The strength of the copper wire and reliability of electrical contacts are the essential reason for their widespread use throughout the industry of electrical engineering in the distribution of electrical energy, and in the manufacture of electrical equipment and electrical components. Unfortunately, this property is altered by the presence of certain mechanical stress, which influences thereafter the mechanical characteristics of son and disrupts the functioning of electrical cable and electrical installation specially in general. This issue therefore requires first an understanding of the mechanical characteristics as well as an expanded study of the mechanical behavior of the material.
The study is based on the mastery of mechanical behavior of copper wire to improve and optimize the mechanical and electrical characteristics of the cables, another summer in characterizing component considered during this study, it is a statistical study Student of which allowed us to select the most reliable results with a risk threshold of 10% on the other hand, we perform a statistical study Weibull which enabled us to extract the Weibull elements and thereafter define the law of reliability and Weibull damage.