Aplicação da proteção contra descargas atmosféricas utilizando componentes naturais da estrutura de acordo com a NBR 5419:2015

Abstract

The installation of protections against the atmospherics discharges (The lightning protection) are now highly being needed. However, the owners of the buildings, fearing a high cost, do not use them. With the advancement of studies of surge arresters in the world, natural components of the structure began to be used to protect them against lightning, joining security and economy simultaneously. This paper shows through a case study, according to the NBR 5419: 2015, where parts of the structure itself can fulfill its role of "self-defense" with respect to the rays. As a recent practice, it is important to understand the best way possible of all subsystems of a structural LPS (Lightning Protection System) could work together for protection of structures, people and electronic equipment. The NBR 5419 was updated last year, so this paper, gathers updated materials, through rules, articles, sites and contacts with the participant’s boards of the standard review. In the case study will be seen references of a day care center project in the municipality of São Mateus do Maranhão – MA, where they were taken advantage of natural parts of the structure for lightning protection, and therefore there was a certain economic gain compared to structures that do not use structural LPS