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Smoke-proof stairwells


Smoke-free stairwells: stairwells intended for evacuation of people during a fire (divided into three types):

a smoke-free stairwell with access to the stairwell from the floor via an outdoor air zone through open passageways, provided that the passage through the air zone is smoke-free - type N1;

a smoke-free stairwell with air pressurization in the stairwell during a fire - type N2;

a smoke-free stairwell with access to the stairwell from the floor via a vestibule with air pressurization (constant or during a fire) - type N3

Source: "SP 118.13330.2012. Code of Practice. Public buildings and structures. Updated edition of SNiP 31-06-2009"

(approved by the Order of the Ministry of Regional Development of Russia dated December 29, 2011 No. 635/10)

Морфология

Род

Понятие «лестничные клетки незадымляемые» женского рода.

Склонение и число

Падеж Единственное число Множественное число
Р лестничной клетки незадымляемой лестничных клеток незадымляемых
Д лестничной клетке незадымляемой лестничным клеткам незадымляемым
В лестничную клетку незадымляемую лестничные клетки незадымляемые
Т лестничной клеткой незадымляемой лестничными клетками незадымляемыми
П лестничной клетке незадымляемой лестничных клетках незадымляемых
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