Iluminação no ambiente escolar: análise luminotécnica de salas de aulas do IFG-Itumbiara (GO)

Abstract

This study presents an evaluation of the artificial lighting conditions in classrooms of the old block of the Federal Institute of Goiás – Itumbiara Campus, based on in situ illuminance measurements. The objective of the study was to verify the compliance of the existing lighting system with the technical criteria established by ABNT NBR ISO/CIE 8995-1:2013, applicable to educational environments used at night. The adopted methodology included a bibliographic review, a survey of the physical and constructive characteristics of the analyzed classrooms, and point-by-point measurements of illuminance levels on the work plane, in accordance with the procedures recommended by the standard. The collected data were organized and quantitatively analyzed, considering average, minimum, and maximum illuminance values, as well as the lighting uniformity index. The results indicated that all evaluated classrooms presented average illuminance levels below the minimum recommended value for classrooms used during the nighttime period, in addition to uniformity indices significantly lower than the normative parameters. An uneven luminous distribution was also observed, with higher illuminance levels concentrated near the luminaires and reduced values in peripheral areas. It is concluded that the analyzed artificial lighting system does not fully comply with the requirements established by the current standard, highlighting the importance of periodic technical evaluations in educational environments.