Požarni sektor se smatra vitalnim delom svakog projektnog pristupa za zaštitu od požara i predstavlja oblik pasivne zaštite od požara, jer obično ne reaguje ili se ne menja u bilo kojim uslovima požara. Požarni sektor je u suštini podelilo zgradu u različite „ćelije“ kako bi se ograničilo ili zadržalo širenje vatre, toplote i dima u ili iz drugog dela iste zgrade ili susedne zgrade u određeno vreme. Time se štite stanovnici zgrada i dozvoljava im vreme za evakuaciju, a istovremeno pruža mogućnost lokalnim vatrogasnim službama da deluju i smanje potencijalne štete u slučaju požara. Požarni sektori su odvojeni jedni od drugih zidovima u punoj visini i podovima od vatrootpornih materijala i konstrukcije.
One possible weakness within fire compartment walls comes with the need for things to pass through them, whether this relates to the requirement for people (voids for doorways) or building services (electrical cables, pipes, ventilation & smoke extraction ductwork), these create openings and therefore weaknesses within the compartment walls.
Specialist attention needs to be given to these breaches. Firestopping is a term given to various components used to seal openings in compartmentation walls. Each method used will differ depending on the type and size of the wall opening.
High expansion Intumescent Propokan Pro system is an easy to apply sealant. It expands at temperatures above 135°C sealing around various penetrations and services to prevent the passage of smoke and flames.
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