Análise de conformidade de SPDA segundo a NBR 5419/2015: um estudo de caso.

Abstract

The study on lightning discharges highlights that, although it is impossible to prevent their occurrence, it is essential to adopt protective measures to minimize their impacts. Brazil leads the global ranking in lightning incidence, with approximately 78 million discharges annually, resulting in 2,194 deaths between 2000 and 2019, according to data from INPE (2024). Lightning poses significant risks to structures, people, and equipment, making it crucial to implement Lightning Protection Systems (LPS) as guided by NBR 5419/2015. The LPS is composed of an external system (air terminals, down conductors, and grounding) and an internal system, which includes Surge Protection Devices (SPD) to mitigate the electrical effects of lightning strikes. Furthermore, proper grounding design is essential for the safety of electrical installations. However, many LPS installations do not comply with technical standards due to poor planning, the use of inadequate materials, lack of maintenance, and unqualified professionals, increasing risks to human life and property. This study aims to analyze the compliance and efficiency of Lightning Protection Systems (LPS) installed in buildings in the municipality of Campina Grande, PB, and suggest improvements to correct faults and enhance the safety of installations.