IMPACTO DAS FALHAS NO ESMALTE ISOLANTE NA INTEGRIDADE DOS FIOS DE COBRE CLASSE 200 °C: uma análise das causas e efeitos

Abstract

Enameled copper wires are fundamental components in motors, transformers, and electrical equipment. The enamel provides electrical insulation and mechanical protection for the conductor. However, failures in the insulating enamel can compromise system reliability, leading to performance losses, short circuits, and premature failures. This study aims to analyze the main failure mechanisms in the insulating enamel applied to Class 200°C copper wires, identifying their causes and consequences for the structural and functional integrity of the conductor. The research includes a review of standards and technical literature, as well as an experimental analysis through industrial tests of visual inspection, adhesion, flexibility, continuity, and dimensional, mechanical, electrical, and thermal properties. The results allow us to understand the relationship between recurring occurrences and manufacturing interruptions, providing insights for improvements in the production process and the prevention of nonconformities in Class 200°C conductors.