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  2. Smokeproof enclosure - Wikipedia

    en.wikipedia.org/wiki/Smokeproof_enclosure

    The Life Safety Code states that such stairwells be "approved systems with a design pressure difference across the barrier of not less than 0.05 in. water column (12.5 Pa) in sprinkled buildings and 0.10 in. water column (25 Pa) in non-sprinkled buildings".

  3. Public address system - Wikipedia

    en.wikipedia.org/wiki/Public_address_system

    Small PA systems may extend to an entire building, such as a restaurant, store, elementary school or office building. A sound source such as a compact disc player or radio may be connected to a PA system so that music can be played through the system. Smaller, battery-powered 12 volt systems may be installed in vehicles such as tour buses or ...

  4. Hospital emergency codes - Wikipedia

    en.wikipedia.org/wiki/Hospital_emergency_codes

    Hospital emergency codes are coded messages often announced over a public address system of a hospital to alert staff to various classes of on-site emergencies. The use of codes is intended to convey essential information quickly and with minimal misunderstanding to staff while preventing stress and panic among visitors to the hospital.

  5. Emergency exit - Wikipedia

    en.wikipedia.org/wiki/Emergency_exit

    Emergency exit. An emergency exit in a building or other structure is a special exit used during emergencies such as fires. The combined use of regular and emergency exits allows for faster evacuation, and emergency exits provide alternative means of evacuation if regular exits are inaccessible. Emergency exits must:

  6. Wheelchair ramp - Wikipedia

    en.wikipedia.org/wiki/Wheelchair_ramp

    A portable wheelchair ramp. A wheelchair ramp is an inclined plane installed in addition to or instead of stairs. Ramps permit wheelchair users, as well as people pushing strollers, carts, or other wheeled objects, to more easily access a building, or navigate between areas of different height. Ramps for accessibility may predate the wheelchair ...

  7. U.S. Steel Tower - Wikipedia

    en.wikipedia.org/wiki/U.S._Steel_Tower

    For the building in New York formerly known as the U.S. Steel Building, see One Liberty Plaza. The U.S. Steel Tower, also known as the Steel Building, UPMC Building, or USX Tower (1988–2001), is a 64-story skyscraper at 600 Grant Street in downtown Pittsburgh, Pennsylvania. The interior has 2,300,000 sq ft (210,000 m 2) of leasable space.

  8. Pennsylvania Hospital - Wikipedia

    en.wikipedia.org/wiki/Pennsylvania_Hospital

    The emergency room entrance at Pennsylvania Hospital at 9th and Spruce streets. Pennsylvania Hospital is a private, non-profit, 515-bed teaching hospital located at 800 Spruce Street in Center City Philadelphia, The hospital was founded on May 11, 1751 by Benjamin Franklin and Thomas Bond, and was the second established public hospital (first was Bellevue) but had the first surgical ...

  9. Building occupancy classifications - Wikipedia

    en.wikipedia.org/wiki/Building_occupancy...

    The following is based on the International Building Code, the most commonly used building code in the United States: Assembly (Group A) - places used for people gathering for entertainment, worship, and eating or drinking. Examples: churches, restaurants (with 50 or more possible occupants), theaters, and stadiums.