Reduction in Fire Hazard in Corridors and Areas Adjoining Corridors Provided by Sprinklers.
Reduction in Fire Hazard in Corridors and Areas
Adjoining Corridors Provided by Sprinklers.
NISTIR 4631; 90 p. July 1991.
Sponsor:General Services Administration, Washington, DC
Order number: PB91-222604
corridor tests; crib tests; large scale fire tests; life
safety; refuge; room fires; sprinklers; tenability
A study was conducted for the General Services
Administration to investigate and quantify sprinklered
fire exposure on an exit corridor and spaces adjacent to
that corridor. The study compares the conditions in the
test facility due to a 1 MW crib fire with those of a
fire under control by a sprinkler. The effect of a
sprinkler positioned in the corridor, outside of the
burn room, was also examined. The test facility
consisted of a burn room, a target room and a corridor
connecting the two rooms. The burn room was a 2.44 m
square with a 2.44 m high ceiling. The corridor was 12.8
m long, 2.44 m wide and 2.44 m high. The target room
consisted of an entry alcove and a rectangular room with
a total volume of 15 m(3). The target room was
protected using a simulated "standard door" (6 mm top
cut, 6 mm side cut and a 13 mm undercut). Gas
temperatures and concentrations of oxygen, carbon
dioxide, and carbon monoxide were measured at selected
points in the three rooms. Tenability was assessed
using both temperature and gas toxicity criteria. This
assessment showed that sprinklers maintained tenable
conditions outside the room of fire origin.