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Fire
Protection Manual |
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Chapter 10 Fire Barriers |
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1.0
Purpose
Most building
construction includes the use of fire barriers to protect the occupants in the
event of a fire emergency. Fire barriers embody many features that must be kept
intact for the barrier to perform its intended protective function. Inspection
of fire barriers must be conducted
throughout TJNAFs buildings.
2.0
Scope
This document
provides the requirements for inspection of fire barriers.
3.0
Responsibilities
Note: Management authority may be delegated to a
task-qualified TJNAF employee at the discretion of the responsible manager.
· Building Managers and Safety Wardens
- conduct regularly
scheduled walk throughs of all spaces
- document walk
throughs and findings
· Fire Marshal
- conduct fire
barrier inspections
- maintain
inspection and evaluation records
4.0
General Information
4.1
Fire Barriers and
Fire Walls
· Fire Barrier Wall or Fire Partition Wall – an interior
wall that serves to restrict the spread of fire, but does not qualify as a fire
wall. A fire barrier wall subdivides a floor or an area and is erected to
extend from the floor to the underside of the floor or roof above. Fire partitions may be constructed of
noncombustible, limited combustible, or protected combustible materials; and,
should be attached to, and supported by, structural members having fire
resistance at least equal to that of the partition.
· Fire Wall – a wall of sufficient fire resistance,
durability, and stability to withstand the effects of an uncontrolled fire
exposure, which may result in collapse of the structural framework on either
side. Openings in the wall, if allowed, must be protected. Fire walls, constructed
of reinforced concrete, concrete blocks, and sometimes brick, provide a fire
separation between areas of the same building. A fire wall can separate buildings or
subdivide a building to prevent the spread of fire.
· Fire Walls, Fire Barrier Walls, and Fire Partition
Walls
o
Designed
and installed during new construction, these walls should be inspected and
accepted at the time of construction.
Refer to National Fire Protection (NFPA) Code 5000 (6.1 below) for a comprehensive
list of present-day design criteria used during new construction. The pertinent
sections of this code are:
§ 8.3.3, Fire Walls
§ 8.4, Fire Barrier
Walls
§ 8.6, Horizontal
Assemblies
§ 8.7, Opening
Protectives
§ 8.8, Penetrations
o
Inspected
annually
4.2
Fire Door
Assemblies
To
satisfy the requirements of NFPA Standard 80, Section 5.2.1 (6.3 below), fire
door assemblies are inspected and tested not less than annually; and, a written
record of the inspection is signed.
4.3
Fire Dampers
To satisfy the requirements of NFPA Standard
80, Section 19.4.1 (6.3 below), fire dampers are tested and inspected one year
after installation. The test and inspection frequency,
is, therefore, every four years.
5.0
Process
Fire Wall, Barrier
Wall, and Partition Wall Annual Inspection
5.1
Inspect the walls that comprise a fire barrier in each
location listed in Section 7.0, Fire Barrier Locations. All portions of the
wall are to be viewed. Fire barrier walls are continuous through all concealed
spaces, e.g., those found above a ceiling, including interstitial spaces.
Inspect each wall using the following criteria:
· Opening protectives: fire doors installed in a fire
barrier wall are self- or automatic-closing. In accordance with the
requirements of NFPA 80 Section 5.2.3 (6.3 below), Functional Test, all openings are protected by approved,
listed, and labeled fire door and fire window assemblies, & their
accompanying hardware (including all frames, closing devices, anchorage, and
sills).
· Penetrations for cables, cable trays, conduits, pipes,
tubes, combustion and exhaust vents, wires, and similar items to accommodate
electrical, mechanical, plumbing, and communications systems that pass through
a wall, floor, or floor-ceiling assembly constructed as a fire barrier are
protected by a firestop system or device.
· Ducts and Air Transfer Openings: fire dampers are
installed to protect ducts and air-transfer openings that penetrate fire
barriers and fire walls, as required by other
sections of NFPA 5000 (6.1 below). It
is important to note that not all ducts are required to be installed
with dampers (see NFPA 5000 [6.1], Section 8.8.8.2 Fire Damper Requirements).
5.2
Complete an inspection record and sign the final Inspection
Report. The report shall include the
following information:
· Date of inspection
· Name of facility
· Address of
Facility
· Name of person
performing the testing
· Company name and
address of inspecting company
· Signature of
inspector of record
· Opening identifier
and location of each inspected and tested fire door assembly
· Type and
description of each inspected and tested fire door assembly
· Verification of
visual inspection and functional operation
· List of
deficiencies
6.0
References
Note: Unless otherwise noted, the following
documents are the current editions.
6.1
NFPA 5000, Building Construction
and Safety Code
6.2
NFPA 221, Standard for High
Challenge Fire walls, Fire Walls, and Fire Barrier Walls
6.3
NFPA 80, Standard for Fire Doors
and Other Opening Protectives
7.0
Fire Barrier Locations
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Appendix |
Building |
Fire Barrier |
|
1 |
#8 CHL |
Exit
Stair Enclosure |
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2 |
#12 CEBAF Center |
Stairwell
A, B, C, D, E, F, G, H, I, F-Wing\Attrium\Kitchen
common wall Atrium
walls Elevator
Enclosure – Wing AB Elevator
Enclosure – Wing F |
|
3 |
#18 LERF |
Skylight
Stairwell Elevator
Enclosure |
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4 |
#28 SSC |
Boiler
Room |
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5 |
#67 South Access Building |
Tunnel
Exit Stairwell |
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6 |
#58 Test Lab |
High
Bay\Annex Wall Annex
East Stairwell Annex
West Stairwell Electrical
Rm 1101/Corridor 1000A Electrical
Rm 1101/Mechanical Rm 1102 Process
Support Area Rm 1050 & Corridor 1004 (2 hour rated) Process
Support Bldg Rm1001A/Corridor 1002 Stairwell
North - Area G Elevator
Enclosure – Area G Stairwell
West – Area G |
|
7 |
#38 North Access Building |
Tunnel
Exit Stairwell |
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8 |
#97 Counting House |
Stairwell
Hall
A Cable Shaft Hall
B Cable Shaft Hall
C Cable Shaft Elevator
Enclosure |
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9 |
#98 CRYO Fab. Shop |
Common
Wall with electronics area |
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10 |
#202 Hall D Counting House |
Dumb
Water Enclosure Exit
Stair Enclosure Common
wall with Hall D |
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n/a |
#55 Technical Engineering & Development
(TED) |
Electrical
Rm 1515 Entry
Foyer West
Stair Elevator
Enclosure Electrical
Rm 2526 |
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n/a |
#94
Hall B |
Labrynth
Exit |
|
n/a |
#96
Hall C |
Labrynth
Exit |
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n/a |
#101
Hall A |
Labrynth
Exit |
