Verificação de parâmetros hidráulicos das instalações de combate a incêndio em edificações altas na cidade de João pessoa - PB

Abstract

In this work, a pressure and flow check was performed on a hydraulic fire-fighting system under command - hydrant system - from the highest floors of a high residential building located in the city of João Pessoa-PB, through the use of the device by a Fire Department vehicle used to fight fires. A comparison of these results was carried out with the minimum limits required by related standards and fire fighting techniques, in order to be able to glimpse the hydraulic potential of fire fighting in high buildings with water supply through the hydrant of repression. It was verified that in relation to the normative parameters that are established for fire fighting at the beginning, the limit found was the 25th floor type, with pressure at the entrance of the regulating nozzle of 36.67 mca and flow at the tip of the squirt of 167 l / min. Regarding the techniques used by firefighters to control and extinguish the fire already developed, when for various reasons it was not possible to do it by the occupants of the building, the limit found was the 12th type pavement, with pressure at the entrance of the adjustable squall of 80 mca and flow at the tip of the nozzle of 180 l / min. Specifically, it was observed that it would not be possible to use direct jet attack techniques as a ZOTI sweep and attack on any of the type pavements, due to insufficient flow.