BC chapter 12 Flashcards
high rise building
defined as being more than 75 feet in height
high rise construction type
codes require 2-3 hour fire resistance for structural frame and 2- hour fire resistance for floor construction
shunt trip
a circuit breaker which is tripped to disconnect power to elevator prior to the sprinkler system being activated
elevator phase l operation
emergency operating mode that elevators.recalls the car to the terminal floor lobby or another floor as specified and opens doors
elevator phase ll operation
emergency operating mode for elevators allows emergency use of the elevator with certain safeguards and special functions…..basically manually operating elevator
underground building
may have occupancy areas 30 feet or more lower than their primary exit
covered Malls
codes require FD hose outlets in stairs,at major entrances to the mall,and at entrances from the mall to corridors and passageways….and require mall walkways be a minimum of 20 feet wide
areas of refuge
for a stairway serving as an accessible means of egress can be located within the stairway on a landing or near the stairway in an adjacent vestibule