SECTION
702 DEFINITIONS
702.1
Definitions. The following words and terms shall, for
the purposes of this chapter, and as used elsewhere in this
code, have the meanings shown herein.
ANNULAR
SPACE. The opening around the penetrating item.
CEILING
RADIATION DAMPER. A listed device installed in a ceiling
membrane of a fire-resistance-rated floor/ceiling or roof/ceiling
assembly to limit automatically the radiative heat transfer
through an air inlet/outlet opening.
COMBINATION FIRE/SMOKE DAMPER. A listed device installed
in ducts and air transfer openings designed to close automatically
upon the detection of heat and resist the passage of flame
and smoke. The device is installed to operate automatically,
controlled by a smoke detection system, and
where
required, is capable of being positioned from a fire command
center.
DAMPER.
See "Ceiling radiation damper," "Combination
fire/smoke damper," "Fire damper" and "Smoke
damper."
DRAFTS
TOP. A material, device or construction installed to restrict
the movement of air within open spaces of concealed areas
of building components such as crawl spaces, floor/ceiling
assemblies, roof/ceiling assemblies and attics.
F
RATING. The time period that the through-penetration fires
top system limits the spread of fire through the penetration
when tested in accordance with ASTM E 814.
FIRE
AREA. The aggregate floor area enclosed and bounded by
fire walls, fire barriers, exterior walls or fire-resistance-rated
horizontal assemblies of a building.
FIRE
BARRIER. A fire-resistance-rated wall assembly of materials
designed to restrict the spread of fire in which continuity
is maintained.
FIRE
DAMPER. A listed device installed in ducts and air transfer
openings designed to close automatically upon detection of
heat and resist the passage of flame. Fire dampers are classified
for use in either static systems that will automatically shut
down in the event of a fire, or in dynamic systems that continue
to operate during a fire. A dynamic fire damper is tested
and rated for closure under elevated temperature airflow.
FIRE DOOR. The door component
of a fire door assembly.
FIRE DOOR ASSEMBLY. Any
combination of a fire door, frame, hardware, and other accessories
that together provide a specific degree of fire protection
to the opening.
FIRE
PARTITION. A vertical assembly of materials designed to
restrict the spread of fire in which openings are protected.
FIRE
PROTECTION RATING. The period of time that an opening
protective assembly will maintain the ability to confine afire
as determined by tests prescribed in Section
715. Ratings are stated in hours or minutes.
FIRE
RESISTANCE. That property of materials or their assemblies
that prevents or retards the passage of excessive heat, hot
gases or flames under conditions of use.
FIRE-RESISTANCE
RATING. The period of time a building element, component
or assembly maintains the ability to confine a fire, continues
to perform a given structural function, or both, as determined
by the tests, or the methods based on tests, prescribed in
Section 703.
FIRE-RESISTANT
JOINT SYSTEM. An assemblage of specific materials or products
that are designed, tested, and fire-resistance rated in accordance
with either ASTM E 1966 or UL 2079 to resist for a prescribed
period of time the passage of fire through joints made in
or between fire-resistance-rated assemblies.
FIRE
SEPARATION DISTANCE. The distance measured from the building
face to one of the following:
1.The closest interior lot
line;
2.To the centerline of a street,
an alley or public way; or
3.To an imaginary line between
two buildings on the property.
FIRE
WALL. A fire-resistance-rated wall having protected openings,
which restricts the spread of fire and extends continuously
from the foundation to or through the roof, with sufficient
structural stability under fire conditions to allow collapse
of construction on either side without collapse of the wall.
FIRE
WINDOW ASSEMBLY. A window constructed and glazed to give
protection against the passage of fire.
FIREBLOCKING.
Building materials installed to resist the free passage of
flame to other areas of the building through concealed spaces.
FLOOR FIRE DOOR ASSEMBLY.
A combination of a fire door, a frame, hardware and other
accessories installed in a horizontal plane, which together
provide a specific degree of fire protection to a through-opening
in a fire-resistance-rated floor I (see Section
711.8).
HORIZONTAL ASSEMBLY. A fire-resistance-rated floor or
roof assembly of materials designed to restrict the spread
of fire in which continuity is maintained
JOINT.
The linear opening in or between adjacent fire-resistance-rated
assemblies that is designed to allow independent movement
of the building in any plane caused by thermal, seismic, wind
or any other loading.
MEMBRANE PENETRATION. An opening made through one side
(wall, floor or ceiling membrane) of an assembly.
MEMBRANE-PENETRATION FIRES TOP. A material, device or
construction installed to resist for a prescribed time period
the passage of flame and heat through openings in a protective
membrane in order to accommodate cables, cable trays, conduit,
tubing, pipes or similar items.
MINERAL
FIBER. Insulation composed principally of fibers manufactured
from rock, slag or glass, with or without binders.
MINERAL
WOOL. Synthetic vitreous fiber insulation made by melting
predominately igneous rock or furnace slag, and other inorganic
materials, and then physically forming the melt into fibers.
PENETRATION
FIRESTOP. A through-penetration firestop or a membrane-penetration
firestop.
SELF
-CLOSING. As applied to a fire door or other opening,
means equipped with an approved device that will ensure closing
after having been opened.
SHAFT.
An enclosed space extending through one or more stories of
a building, connecting vertical openings in successive floors,
or floors and roof.
SHAFT
ENCLOSURE. The walls or construction forming the boundaries
of a shaft.
SMOKE
BARRIER. A continuous membrane, either vertical or horizontal,
such as a wall, floor, or ceiling assembly, that is designed
and constructed to restrict the movement of smoke.
SMOKE
COMPARTMENT. A space within a building enclosed by smoke
barriers on all sides, including the top and bottom.
SMOKE
DAMPER. A listed device installed in ducts and air transfer
openings designed to resist the passage of smoke. The device
is installed to operate automatically, controlled by a smoke
detection system, and where required, is capable of being
positioned from a fire command center.
SPLICE.
The result of a factory and/or field method of joining or
connecting two or more lengths of a fire-resistant joint system
into a continuous entity.
T
RATING. The time period that the penetration fires top
system, including the penetrating item, limits the maximum
temperature rise to 325°F (l63°C) above its initial temperature
through the penetration on the nonfire side when tested in
accordance with ASTM E 814.
THROUGH
PENETRATION. An opening that passes through an entire
assembly.
THROUGH-PENETRATION FIRESTOP SYSTEM. An assemblage of
specific materials or products that are designed, tested and
fire-resistance rated to resist for a prescribed period of
time the spread of fire through penetrations. The F and T
rating criteria for penetration firestop systems shall be
in accordance with ASTM E 814. See definitions of "F
rating" and "T rating."
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