protected lobby definition
protected lobby means a lobby enclosed throughout by partitions having an FRP of not less than half hour and has all openings therein fitted with fixed lights and self-closing doors having an FRP of not less than half hour;
protected lobby means a lobby formed by fire and smoke resisting construction in accordance with Part C to prevent the spread of heat and smoke.
protected lobby means a lobby enclosed throughout by partitions having an FRP of not less than ½ hour and has all openings therein fitted with fixed lights or self-closing doors having an FRP of not less than ½ hour.
More Definitions of protected lobby
protected lobby means a lobby enclosed with fire resisting construction and forming part or the whole of the horizontal component of an escape route, or affording additional protection to an escape route.