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Louisiana Engineering Society Continuing Education Seminar on Fire Alarm Systems with Michael C. McLean Staff Fire Alarm Specialist

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Title: Louisiana Engineering Society Continuing Education Seminar on Fire Alarm Systems with Michael C. McLean Staff Fire Alarm Specialist


1
Louisiana Engineering Society Continuing
Education Seminaron Fire Alarm Systemswith
Michael C. McLean Staff Fire Alarm Specialist
LOUISIANA DEPARTMENT OF PUBLIC
SAFETY AND CORRECTIONS OFFICE OF
STATE FIRE MARSHAL, CODE ENFORCEMENT AND
BUILDING SAFETY
2
What are we going to discuss today?
LOUISIANA DEPARTMENT OF PUBLIC
SAFETY AND CORRECTIONS OFFICE OF
STATE FIRE MARSHAL, CODE ENFORCEMENT AND
BUILDING SAFETY
  • Basic Fire Alarm Requirements
  • Successful Shop Drawing Submittals
  • Exemption Request Forms
  • Fire Alarm Design Exercises

3
Basic Fire Alarm Requirements
LOUISIANA DEPARTMENT OF PUBLIC
SAFETY AND CORRECTIONS OFFICE OF
STATE FIRE MARSHAL, CODE ENFORCEMENT AND
BUILDING SAFETY
  • NFPA 101 - Life Safety Code Explains where to
    provide the fire alarm system (dictated by the
    occupancy chapter).
  • NFPA 72 - National Fire Alarm Code Explains how
    to provide a fire alarm system.
  • Americans with Disability Act - Accessible
    Guidelines (ADA-AG) Explains where to provide
    visual notification for the hearing impaired.

4
NFPA 101 - Life Safety Code
LOUISIANA DEPARTMENT OF PUBLIC
SAFETY AND CORRECTIONS OFFICE OF
STATE FIRE MARSHAL, CODE ENFORCEMENT AND
BUILDING SAFETY
  • 1019.6 Fire Detection, Alarm, and Communication
    System (this is how we are able to enforce NFPA
    72 - National Fire Alarm Code)
  • 1019.6.1.4 Fire alarm system installation
    wiring or other transmission paths shall be
    monitored for integrity in accordance with NFPA
    70 - National Electrical Code and NFPA 72 -
    National Fire Alarm Code.
  • 1019.6.1.8 Requires the building to be
    evacuated or a fire watch if the fire alarm
    system is down for 4 or more hours in a 24 hour
    period.

5
NFPA 101 - Life Safety Code
LOUISIANA DEPARTMENT OF PUBLIC
SAFETY AND CORRECTIONS OFFICE OF
STATE FIRE MARSHAL, CODE ENFORCEMENT AND
BUILDING SAFETY
  • 1019.6.1.9 Requires the fire alarm system to
    perform three distinct functions
  • I. Initiation - The initiation function provides
    the input signal to the system. (i.e. manual pull
    stations, automatic detection devices,waterflow
    switches and the activation of any other
    extinguishing system)
  • II. Notification - The notification function is
    the means by which the system advises that human
    action is required in response to a particular
    condition. (i.e. horns, speakers, and strobes for
    building evacuation and off site transmission for
    Emergency Forces Notification)
  • III. Control - The control function provides
    outputs to control building equipment to enhance
    protection of life. (i.e. door hold open devices,
    smoke removal systems, HVAC shutdown, etc)

6
NFPA 101 - Life Safety Code Initiation
Requirements
LOUISIANA DEPARTMENT OF PUBLIC
SAFETY AND CORRECTIONS OFFICE OF
STATE FIRE MARSHAL, CODE ENFORCEMENT AND
BUILDING SAFETY
  • 1019.6.2.3 A manual pull station shall be
    provided in the natural exit access path near
    each required exit.
  • 1019.6.2.5 Requires fire alarm systems
    utilizing automatic fire detection or waterflow
    detection devices, to be provided with at least
    one manual pull station.
  • 1019.6.10.1 Smoke alarms shall receive their
    operating power from the building electrical
    system.

7
NFPA 101 - Life Safety Code Notification
Requirements
LOUISIANA DEPARTMENT OF PUBLIC
SAFETY AND CORRECTIONS OFFICE OF
STATE FIRE MARSHAL, CODE ENFORCEMENT AND
BUILDING SAFETY
  • 1019.6.3.2 Notification shall be provided by
    audible and visual signals.
  • 1019.6.3.5 The general evacuation alarm signal
    shall operate throughout the entire building.
    (NOTE That there are some exceptions.)
  • 1019.6.3.6 Audible alarm notification
    appliances shall be of such a character and so
    distributed as to effectively be heard above the
    ambient sound level occurring under normal
    conditions of occupancy.

8
NFPA 101 - Life Safety Code Notification
Requirements
LOUISIANA DEPARTMENT OF PUBLIC
SAFETY AND CORRECTIONS OFFICE OF
STATE FIRE MARSHAL, CODE ENFORCEMENT AND
BUILDING SAFETY
  • 1019.6.4 Requires Emergency Forces Notification
    (to alert the municipal fire department and fire
    brigade) to be accomplished by one of the
    following fire alarm signaling type
  • a) Auxiliary
  • b) Remote Station
  • c) Proprietary
  • d) Central Station
  • NOTE Cannot be a Local fire alarm system.

9
NFPA 101 - Life Safety Code Control Requirements
LOUISIANA DEPARTMENT OF PUBLIC
SAFETY AND CORRECTIONS OFFICE OF
STATE FIRE MARSHAL, CODE ENFORCEMENT AND
BUILDING SAFETY
  • 1019.6.5.2 Where required by other sections of
    this Code, the following functions shall be
    actuated by the protective signaling and control
    system
  • a) Release of hold-open devices for doors or
    other opening protectives.
  • b) Stairwell or elevator shaft pressurization.
  • c) Smoke management or smoke control systems.
  • d) Emergency lighting control.
  • e) Unlocking of doors.

10
NFPA 101 - Life Safety Code Annunciation
Requirements
LOUISIANA DEPARTMENT OF PUBLIC
SAFETY AND CORRECTIONS OFFICE OF
STATE FIRE MARSHAL, CODE ENFORCEMENT AND
BUILDING SAFETY
  • 1019.6.7.2 Alarm annunciation at the control
    center shall be by means of audible and visible
    indicators.
  • 1019.6.7.5 A system trouble signal shall be
    annunciated at the control center shall be by
    means of audible and visible indicators.
  • 1019.6.7.6 A system supervisory signal shall be
    annunciated at the control center shall be by
    means of audible and visible indicators.
  • 1019.6.7.7 Where the system serves more than one
    building, each building shall be considered
    separately. (Therefore, each building shall be
    zoned separately.)

11
NFPA 101 - Life Safety Code Supervised
Automatic Sprinkler Requirements
LOUISIANA DEPARTMENT OF PUBLIC
SAFETY AND CORRECTIONS OFFICE OF
STATE FIRE MARSHAL, CODE ENFORCEMENT AND
BUILDING SAFETY
  • 1019.7.2.1 Where required by another section of
    this Code, the supervisory signals (generated by
    supervisory attachments that produces a distinct
    signal to indicate a condition that would impair
    the operation of the sprinkler system) shall
    sound and shall be displayed either at a location
    within the protected building that is constantly
    attended by qualified personnel or at an
    approved, remotely located receiving facility.

12
NFPA 101 - Life Safety Code Supervised
Automatic Sprinkler Requirements
LOUISIANA DEPARTMENT OF PUBLIC
SAFETY AND CORRECTIONS OFFICE OF
STATE FIRE MARSHAL, CODE ENFORCEMENT AND
BUILDING SAFETY
  • 1019.7.2.2 Waterflow alarms shall be
    transmitted to an approved, proprietary alarm
    receiving facility, a remote station, a central
    station, or the fire department. Such connection
    shall be in accordance with NFPA 72.
  • Note That based on these two requirements that a
    fire alarm panel is required to monitor the
    sprinkler system even though the building may not
    contain or require a fire alarm system. Please be
    advised that if the building has a fire alarm
    system, then it cannot be a Local signaling
    system.

13
NFPA 101 - Life Safety Code Elevator Recall
Requirements
LOUISIANA DEPARTMENT OF PUBLIC
SAFETY AND CORRECTIONS OFFICE OF
STATE FIRE MARSHAL, CODE ENFORCEMENT AND
BUILDING SAFETY
  • 1019.4.2 Requires that all new elevators comply
    with the requirements of ASME/ANSI A17.1, Safety
    Code for Elevators and Escalators.
  • ASME/ANSI A17.1, Rule 211.3b requires that smoke
    detectors be installed in accordance with NFPA 72
    - National Fire Alarm Code.
  • Note Be aware of the discrepancies about
    placement of smoke detectors in elevator shafts
    between ASME/ANSI A17.1 and NFPA 72! State Fire
    Marshals Office enforces the requirements of
    723-9.3.1,, Exception that only allows smoke
    detectors in the hoistway if the top of the
    hoistway is protected by automatic sprinklers.

14
NFPA 101 - Life Safety Code Elevator Recall
Requirements
LOUISIANA DEPARTMENT OF PUBLIC
SAFETY AND CORRECTIONS OFFICE OF
STATE FIRE MARSHAL, CODE ENFORCEMENT AND
BUILDING SAFETY
  • 723-9.3.1 Requires that if the building does
    not contain a fire alarm system, then a FACP
    would be required to tie in the smoke detectors
    for elevator recall.
  • Note Very similar to the supervised sprinkler
    system requirements. Both require a FACP and both
    are required to be submitted for plan review!

15
NFPA 101 - Life Safety Code Dissection of
Chapter Occupancy Fire Alarm Requirements
LOUISIANA DEPARTMENT OF PUBLIC
SAFETY AND CORRECTIONS OFFICE OF
STATE FIRE MARSHAL, CODE ENFORCEMENT AND
BUILDING SAFETY
  • Each occupancy chapter fire alarm section is
    always designated as _-3.4.
  • _-3.4.1 General - Identifies when a fire alarm
    system is required in that particular occupancy.
  • _-3.4.2 Initiation - Identifies what methods are
    acceptable to initiate the fire alarm signal.

16
NFPA 101 - Life Safety Code Dissection of
Chapter Occupancy Fire Alarm Requirements
LOUISIANA DEPARTMENT OF PUBLIC
SAFETY AND CORRECTIONS OFFICE OF
STATE FIRE MARSHAL, CODE ENFORCEMENT AND
BUILDING SAFETY
  • _-3.4.3 Notification - Identifies what types of
    notification issues that are required. (i.e.
    occupant notification, annunciation, and
    emergency forces notification )
  • _-3.4.4 Detection - Identifies what types of
    automatic detection is required and where to be
    located. Can include system type detectors (wired
    to the panel) and/or single station detectors
    (stand alone). Not always a requirement.

17
NFPA 101 - Life Safety Code Rule of Thumb for
the not so Obvious Code Issue
LOUISIANA DEPARTMENT OF PUBLIC
SAFETY AND CORRECTIONS OFFICE OF
STATE FIRE MARSHAL, CODE ENFORCEMENT AND
BUILDING SAFETY
  • Remember that if the building is required to have
    a supervised automatic sprinkler system, then the
    building is still required to have a fire alarm
    control panel to monitor the sprinkler system
    (this distinguishes the difference between an
    approved automatic sprinkler system and an
    approved, supervised automatic sprinkler system),
    even if the building is not required to have a
    full blown fire alarm system.

18
NFPA 101 - Life Safety Code Rule of Thumb for
the not so Obvious Code Issue
LOUISIANA DEPARTMENT OF PUBLIC
SAFETY AND CORRECTIONS OFFICE OF
STATE FIRE MARSHAL, CODE ENFORCEMENT AND
BUILDING SAFETY
  • Also be aware that many of the chapter citations
    give exceptions if a supervised sprinkler system
    is provided. These systems are required to be
    submitted for plan review!

19
NFPA 101 - Life Safety Code Rule of Thumb for
the not so Obvious Code Issue
LOUISIANA DEPARTMENT OF PUBLIC
SAFETY AND CORRECTIONS OFFICE OF
STATE FIRE MARSHAL, CODE ENFORCEMENT AND
BUILDING SAFETY
  • The requirements for a supervised automatic
    sprinkler system are not always in the
    Extinguishing Requirements of the Code.
  • 10130.2.5.3 No dead-end corridor shall exceed 35
    ft (10.7m).
  • Exception In buildings protected by an approved,
    supervised automatic sprinkler system installed
    in accordance with 30.3.5, the dead-end corridor
    shall not exceed 50 ft (15m).

20
NFPA 101 - Life Safety Code Rule of Thumb for
the not so Obvious Code Issue
LOUISIANA DEPARTMENT OF PUBLIC
SAFETY AND CORRECTIONS OFFICE OF
STATE FIRE MARSHAL, CODE ENFORCEMENT AND
BUILDING SAFETY
  • Remember that if the building is required to have
    an elevator, then the building is still required
    to have a fire alarm control panel to monitor the
    smoke detectors for elevator recall, even if the
    building is not required to have a full blown
    fire alarm system. Please note that
    ASME/ANSI-A17.1 Safety Code for Elevators and
    Escalators requires that all elevators be
    equipped with elevator recall. These systems are
    required to be submitted for plan review!

21
NFPA 72 - National Fire Alarm Code
LOUISIANA DEPARTMENT OF PUBLIC
SAFETY AND CORRECTIONS OFFICE OF
STATE FIRE MARSHAL, CODE ENFORCEMENT AND
BUILDING SAFETY
  • Chapter 1 - Fundamentals of Fire Alarm Systems
  • Chapter 2 - Initiating Devices (i.e. manual pull
    stations, smoke detectors, heat detectors and
    waterflow switches)
  • Chapter 3 - Protected Premises Fire Alarm Systems
    (requirements for a Local fire alarm signaling
    system type)
  • Chapter 4 - Notification Appliances for Fire
    Alarm Systems (audible and visual appliances)

22
NFPA 72 - National Fire Alarm Code
LOUISIANA DEPARTMENT OF PUBLIC
SAFETY AND CORRECTIONS OFFICE OF
STATE FIRE MARSHAL, CODE ENFORCEMENT AND
BUILDING SAFETY
  • Chapter 5 - Supervising Station Fire Alarm
    Systems (requirements for monitoring off site
    and/or transmitting an alarm signal off site)
  • Chapter 6 - Public Fire Alarm Reporting System
    (Auxiliary)
  • Chapter 7 - Inspection, Testing, and Maintenance
  • Chapter 8 - Fire Warning Equipment for Dwelling
    Units (mainly concerned with the placement of
    single station detectors and systems located
    within a single family living unit)

23
NFPA 72 - National Fire Alarm Code Chapter 1-
Fundamentals of Fire Systems
LOUISIANA DEPARTMENT OF PUBLIC
SAFETY AND CORRECTIONS OFFICE OF
STATE FIRE MARSHAL, CODE ENFORCEMENT AND
BUILDING SAFETY
  • 721-5.1.2 Equipment constructed and installed in
    conformity with this code shall be listed for the
    purpose for which it is used. (The Fire Marshals
    Office uses the UL Fire Protection Equipment
    Directory to verify this information and UL on
    line _at_ http//www.ul.com/database/menu2.htm
  • Do not assume that just because the device or the
    manufacturers cut sheet has a UL symbol that the
    device has been tested as a fire alarm device.)

24
NFPA 72 - National Fire Alarm Code Chapter 1-
Fundamentals of Fire Systems
LOUISIANA DEPARTMENT OF PUBLIC
SAFETY AND CORRECTIONS OFFICE OF
STATE FIRE MARSHAL, CODE ENFORCEMENT AND
BUILDING SAFETY
  • 721-5.2.5.2 Requires at least two independent
    and reliable power supplies
  • a) Primary Supply - typically the building light
    and power service on a dedicated branch circuit
    that is identified as FIRE ALARM CIRCUIT
    CONTROL.
  • b) Secondary Supply - typically battery back up
    and/or automatic starting engine generators.

25
NFPA 72 - National Fire Alarm Code Chapter 1-
Fundamentals of Fire Systems
LOUISIANA DEPARTMENT OF PUBLIC
SAFETY AND CORRECTIONS OFFICE OF
STATE FIRE MARSHAL, CODE ENFORCEMENT AND
BUILDING SAFETY
  • Secondary Power Supply for Battery Back-up
    minimums based on Fire Alarm Signaling Types
  • Remote Station ------------------------------ 60
    hrs.
  • Auxiliary--------------------------------------
    60 hrs.
  • Local------------------------------------------
    24 hrs.
  • Central Station------------------------------ 24
    hrs.
  • Proprietary --------------------------------- 24
    hrs.

26
NFPA 72 - National Fire Alarm Code Chapter 1-
Fundamentals of Fire Systems
LOUISIANA DEPARTMENT OF PUBLIC
SAFETY AND CORRECTIONS OFFICE OF
STATE FIRE MARSHAL, CODE ENFORCEMENT AND
BUILDING SAFETY
  • 721-5.3 All fire detectors devices that receive
    their power from the initiating device circuit or
    the signaling line circuit of a fire alarm
    control unit shall be listed for use with the
    control unit. (This is typically for all two wire
    smoke detectors and some heat detectors per
    manufacturer.)

27
NFPA 72 - National Fire Alarm Code Chapter 1-
Fundamentals of Fire Systems
LOUISIANA DEPARTMENT OF PUBLIC
SAFETY AND CORRECTIONS OFFICE OF
STATE FIRE MARSHAL, CODE ENFORCEMENT AND
BUILDING SAFETY
  • 721-5.4.10 Presignal Feature. Where permitted by
    the A.H.J. (also specifically allowed in certain
    chapters of NFPA 101 - Life Safety Code), systems
    shall be permitted to have a feature that allows
    initial fire alarm signals to sound only in
    department offices, control rooms, fire brigade
    stations, or other constantly attended central
    locations, and for which human action is
    subsequently required to activate a general
    alarm, or a feature that allows the control
    equipment to delay the general alarm by more than
    1 minute after the start of the alarm processing.
    Where there is a connection to a remote location
    (supervising station),it shall activate upon the
    initial signal (the supervising station shall
    immediately contact the fire department because a
    presignal system rely on human action which can
    be unreliable).

28
NFPA 72 - National Fire Alarm Code Chapter 1-
Fundamentals of Fire Systems
LOUISIANA DEPARTMENT OF PUBLIC
SAFETY AND CORRECTIONS OFFICE OF
STATE FIRE MARSHAL, CODE ENFORCEMENT AND
BUILDING SAFETY
  • 721-5.4.11 Positive Alarm Sequence. Where
    permitted by the A.H.J. (also specifically
    allowed in certain chapters of NFPA 101 - Life
    Safety Code), systems utilizes a signal from an
    automatic detector to be acknowledge at the
    control panel by trained personnel within 15
    seconds of annunciation in order to initiate the
    alarm investigation phase. If the signal is not
    acknowledged within 15 seconds then the system
    will go into alarm. Trained staff will have up to
    180 seconds to investigate the fire condition and
    reset the system if need be. If the system is not
    reset during the investigation phase, then the
    system will go into alarm. If any other
    initiating device is actuated during the
    investigation phase, then the system will go into
    alarm.

29
NFPA 72 - National Fire Alarm Code Chapter 1-
Fundamentals of Fire Systems
LOUISIANA DEPARTMENT OF PUBLIC
SAFETY AND CORRECTIONS OFFICE OF
STATE FIRE MARSHAL, CODE ENFORCEMENT AND
BUILDING SAFETY
  • 721-5.5.4 Requires that all wiring, cabling,
    and equipment to be installed in accordance with
    certain sections of NFPA 70 - National Electric
    Code.
  • 721-5.6 Protection of Equipment. In areas that
    are not continuously occupied, automatic smoke
    detection shall be provided at each control
    unit(s) location to provide notification of fire
    in that location.
  • Exception Where ambient conditions the
    installation of automatic smoke detection,
    automatic heat detection shall be permitted.

30
NFPA 72 - National Fire Alarm Code Chapter 2 -
Initiating Devices
LOUISIANA DEPARTMENT OF PUBLIC
SAFETY AND CORRECTIONS OFFICE OF
STATE FIRE MARSHAL, CODE ENFORCEMENT AND
BUILDING SAFETY
  • 722-1.3.1 Where subject to mechanical damage, an
    initiating device shall be protected. A
    mechanical guard used to protect a smoke or heat
    detector shall be listed for use with the
    detector being used.
  • 722-1.4.1 Detectors shall not be recessed into
    the mounting surface in any manner.
  • 722-2.1.1.1 Heat detectors of the fixed
    temperature or rate compensated, spot-pattern
    type shall be classified as to the temperature of
    operation and marked with the appropriate color
    code.

31
NFPA 72 - National Fire Alarm Code Chapter 2 -
Initiating Devices
LOUISIANA DEPARTMENT OF PUBLIC
SAFETY AND CORRECTIONS OFFICE OF
STATE FIRE MARSHAL, CODE ENFORCEMENT AND
BUILDING SAFETY
  • 722-2 Heat-Sensing Fire Detectors
  • 722-2.1.1.1 Heat detectors of the fixed
    temperature or rate compensated, spot-pattern
    type shall be classified as to the temperature of
    operation and marked with the appropriate color
    code.

32
LOUISIANA DEPARTMENT OF PUBLIC
SAFETY AND CORRECTIONS OFFICE OF
STATE FIRE MARSHAL, CODE ENFORCEMENT AND
BUILDING SAFETY
NFPA 72 - National Fire Alarm Code Chapter 2 -
Initiating Devices
  • 722-2.2.1 Spot type heat detectors shall be
    located on the ceiling not less than 4 in. from
    the sidewall or on the sidewalls between 4 in.
    and 12 in. from the ceiling.

33
NFPA 72 - National Fire Alarm Code Chapter 2 -
Initiating Devices
LOUISIANA DEPARTMENT OF PUBLIC
SAFETY AND CORRECTIONS OFFICE OF
STATE FIRE MARSHAL, CODE ENFORCEMENT AND
BUILDING SAFETY
  • 722-2.2.2 Line type heat detectors shall be
    located on the ceiling or on the sidewalls not
    more than 20 in. from the ceiling.

34
NFPA 72 - National Fire Alarm Code Chapter 2 -
Initiating Devices
LOUISIANA DEPARTMENT OF PUBLIC
SAFETY AND CORRECTIONS OFFICE OF
STATE FIRE MARSHAL, CODE ENFORCEMENT AND
BUILDING SAFETY
  • 722-2.4 Covers a variation of different ceiling
    type for spacing requirements for heat detectors.

35
LOUISIANA DEPARTMENT OF PUBLIC
SAFETY AND CORRECTIONS OFFICE OF
STATE FIRE MARSHAL, CODE ENFORCEMENT AND
BUILDING SAFETY
NFPA 72 - National Fire Alarm Code Chapter 2 -
Initiating Devices
  • 722-2.4.1 Smooth Ceiling Spacing for spot type
    heat detectors (see manufacturers specifications
    for recommended spacing)

36
LOUISIANA DEPARTMENT OF PUBLIC
SAFETY AND CORRECTIONS OFFICE OF
STATE FIRE MARSHAL, CODE ENFORCEMENT AND
BUILDING SAFETY
NFPA 72 - National Fire Alarm Code Chapter 2 -
Initiating Devices
  • 722-2.4.1 Smooth Ceiling Spacing for line type
    heat detectors (see manufacturers specifications
    for recommended spacing)

37
LOUISIANA DEPARTMENT OF PUBLIC
SAFETY AND CORRECTIONS OFFICE OF
STATE FIRE MARSHAL, CODE ENFORCEMENT AND
BUILDING SAFETY
NFPA 72 - National Fire Alarm Code Chapter 2 -
Initiating Devices
  • 722-2.4.1 Smooth Ceiling Spacing for Irregular
    Areas using spot type heat detectors ( 30 listed
    spacing)

38
NFPA 72 - National Fire Alarm Code Chapter 2 -
Initiating Devices
LOUISIANA DEPARTMENT OF PUBLIC
SAFETY AND CORRECTIONS OFFICE OF
STATE FIRE MARSHAL, CODE ENFORCEMENT AND
BUILDING SAFETY
  • 722-2.4.3 Beam Construction. A ceiling shall be
    treated as a smooth ceiling if the beams project
    no more than 4 in. (100 mm) below the ceiling. If
    the beams project more than 4 in. (100 mm) below
    the ceiling, the spacing of spot-type heat
    detectors at right angles to the direction of
    beam travel shall be not more than two-thirds of
    the smooth ceiling spacing permitted under
    2-2.4.1.1 and 2-2.4.1.2. If the beams project
    more than 18 in. (460 mm) below the ceiling and
    are more than 8 ft (2.4 m) on center, each bay
    formed by the beams shall be treated as a
    separate area.

39
LOUISIANA DEPARTMENT OF PUBLIC
SAFETY AND CORRECTIONS OFFICE OF
STATE FIRE MARSHAL, CODE ENFORCEMENT AND
BUILDING SAFETY
NFPA 72 - National Fire Alarm Code Chapter 2 -
Initiating Devices
  • 722-2.4.4.1 Peaked. A row of detectors shall
    first be spaced and located at or within 3 ft
    (0.9 m) of the peak of the ceiling, measured
    horizontally. The number and spacing of
    additional detectors, if any, shall be based on
    the horizontal projection of the ceiling in
    accordance with the type of ceiling construction.

40
LOUISIANA DEPARTMENT OF PUBLIC
SAFETY AND CORRECTIONS OFFICE OF
STATE FIRE MARSHAL, CODE ENFORCEMENT AND
BUILDING SAFETY
NFPA 72 - National Fire Alarm Code Chapter 2 -
Initiating Devices
  • 722-2.4.4.2 Shed. Sloping ceilings shall have a
    row of detectors located on the ceiling within 3
    ft (0.9 m) of the high side of the ceiling
    measured horizontally, spaced in accordance with
    the type of ceiling construction. The remaining
    detectors, if any, shall be located in the
    remaining area on the basis of the horizontal
    projection of the ceiling.

41
NFPA 72 - National Fire Alarm Code Chapter 2 -
Initiating Devices
LOUISIANA DEPARTMENT OF PUBLIC
SAFETY AND CORRECTIONS OFFICE OF
STATE FIRE MARSHAL, CODE ENFORCEMENT AND
BUILDING SAFETY
  • 722-3 Smoke-Sensing Fire Detectors
  • 722-3.1.2 Section 5-3 covers general area
    application of smoke detectors in ordinary indoor
    locations. (Photoelectric or Ionization)

42
LOUISIANA DEPARTMENT OF PUBLIC
SAFETY AND CORRECTIONS OFFICE OF
STATE FIRE MARSHAL, CODE ENFORCEMENT AND
BUILDING SAFETY
NFPA 72 - National Fire Alarm Code Chapter 2 -
Initiating Devices
  • 722-3.4.3.1 Spot type smoke detectors shall be
    located on the ceiling not less than 4 in. from
    the sidewall or on the sidewalls between 4 in.
    and 12 in. from the ceiling.

43
NFPA 72 - National Fire Alarm Code Chapter 2 -
Initiating Devices
LOUISIANA DEPARTMENT OF PUBLIC
SAFETY AND CORRECTIONS OFFICE OF
STATE FIRE MARSHAL, CODE ENFORCEMENT AND
BUILDING SAFETY
  • 722-3.4.4 Projected Beam-Type Smoke Detectors.
    Projected beam-type smoke detectors shall be
    located with their projected beams parallel to
    the ceiling and in accordance with the
    manufacturers documented instructions. The
    effects of stratification shall be evaluated when
    locating the detectors.

44
NFPA 72 - National Fire Alarm Code Chapter 2 -
Initiating Devices
LOUISIANA DEPARTMENT OF PUBLIC
SAFETY AND CORRECTIONS OFFICE OF
STATE FIRE MARSHAL, CODE ENFORCEMENT AND
BUILDING SAFETY
  • 722-3.4.5.1 Spot-Type Detectors. On smooth
    ceilings, spacing of 30 ft (9.1 m) shall be
    permitted to be used as a guide. In all cases,
    the manufacturers documented instructions shall
    be followed. Other spacing shall be permitted to
    be used depending on ceiling height, different
    conditions, or response requirements. For the
    detection of flaming fires, the guidelines in
    Appendix B shall be permitted to be used.

45
NFPA 72 - National Fire Alarm Code Chapter 2 -
Initiating Devices
LOUISIANA DEPARTMENT OF PUBLIC
SAFETY AND CORRECTIONS OFFICE OF
STATE FIRE MARSHAL, CODE ENFORCEMENT AND
BUILDING SAFETY
  • 722-3.4.5.1.2 For smooth ceilings, all points on
    the ceiling shall have a detector within a
    distance equal to 0.7 times the selected spacing.
    (Hint Set your compasses to 21. 30X .7 21.)

46
NFPA 72 - National Fire Alarm Code Chapter 2 -
Initiating Devices
LOUISIANA DEPARTMENT OF PUBLIC
SAFETY AND CORRECTIONS OFFICE OF
STATE FIRE MARSHAL, CODE ENFORCEMENT AND
BUILDING SAFETY
  • 722-3.4.6.1 Flat Ceilings. For ceiling heights
    of 12 ft (3.66 m) or lower, and beam or solid
    joist depths of 1 ft (0.3 m) or less, smooth
    ceiling spacing running in the direction parallel
    to the run of the beams or solid joists shall be
    used and one-half the smooth ceiling spacing
    shall be in the direction perpendicular to the
    run of the beams or solid joists. For beams over
    1 ft (0.3 m) in depth, spot-type detectors shall
    be permitted to be located either on the ceiling
    or on the bottom of the beams.

47
NFPA 72 - National Fire Alarm Code Chapter 2 -
Initiating Devices
LOUISIANA DEPARTMENT OF PUBLIC
SAFETY AND CORRECTIONS OFFICE OF
STATE FIRE MARSHAL, CODE ENFORCEMENT AND
BUILDING SAFETY
  • 722-3.4.6.1 Flat Ceilings. (cont.)
  • For beam depths exceeding 1 ft (0.3 m) or for
    ceiling heights exceeding 12 ft (3.66 m),
    spot-type detectors shall be located on the
    ceiling in every beam pocket.
  • For solid joists, the detectors shall be located
    on the bottom of the joists.

48
NFPA 72 - National Fire Alarm Code Chapter 2 -
Initiating Devices
LOUISIANA DEPARTMENT OF PUBLIC
SAFETY AND CORRECTIONS OFFICE OF
STATE FIRE MARSHAL, CODE ENFORCEMENT AND
BUILDING SAFETY
  • 722-3.4.6.2 Sloped Ceilings. For beamed ceilings
    with beams running parallel to (up) the slope,
    the spacing for flat beamed ceilings shall be
    used. The ceiling height shall be taken as the
    average height over the slope. For slopes greater
    than 10 degrees, the detectors located at
    one-half the spacing from the low end shall not
    be required. Spacings shall be measured along a
    horizontal projection of the ceilings.
  • For beamed ceilings with beams running
    perpendicular to (across) the slope, the spacing
    for flat beamed ceilings shall be used. The
    ceiling height shall be taken as the average
    height over the slope.
  • For solid joists, the detectors shall be located
    on the bottom of the joists.

49
LOUISIANA DEPARTMENT OF PUBLIC
SAFETY AND CORRECTIONS OFFICE OF
STATE FIRE MARSHAL, CODE ENFORCEMENT AND
BUILDING SAFETY
NFPA 72 - National Fire Alarm Code Chapter 2 -
Initiating Devices
  • 722-3.4.7 Peaked. A row of detectors shall first
    be spaced and located at or within 3 ft (0.9 m)
    of the peak of the ceiling, measured
    horizontally. The number and spacing of
    additional detectors, if any, shall be based on
    the horizontal projection of the ceiling in
    accordance with the type of ceiling construction.

50
LOUISIANA DEPARTMENT OF PUBLIC
SAFETY AND CORRECTIONS OFFICE OF
STATE FIRE MARSHAL, CODE ENFORCEMENT AND
BUILDING SAFETY
NFPA 72 - National Fire Alarm Code Chapter 2 -
Initiating Devices
  • 722-3.4.8 Shed. Sloping ceilings shall have a
    row of detectors located on the ceiling within 3
    ft (0.9 m) of the high side of the ceiling
    measured horizontally, spaced in accordance with
    the type of ceiling construction. The remaining
    detectors, if any, shall be located in the
    remaining area on the basis of the horizontal
    projection of the ceiling.

51
NFPA 72 - National Fire Alarm Code Chapter 2 -
Initiating Devices
LOUISIANA DEPARTMENT OF PUBLIC
SAFETY AND CORRECTIONS OFFICE OF
STATE FIRE MARSHAL, CODE ENFORCEMENT AND
BUILDING SAFETY
  • 722-3.4.9 Raised Floors and Suspended Ceilings.
    Spaces beneath raised floors and above suspended
    ceilings shall be treated as separate rooms for
    smoke detector spacing purposes. Detectors
    installed beneath raised floors or above
    suspended ceilings, or both, including raised
    floors and suspended ceilings used for
    environmental air, shall not be used in lieu of
    providing detection within the room. (Hint
    Required for occupancies mandated to have a
    complete smoke detection system.)

52
NFPA 72 - National Fire Alarm Code Chapter 2 -
Initiating Devices
LOUISIANA DEPARTMENT OF PUBLIC
SAFETY AND CORRECTIONS OFFICE OF
STATE FIRE MARSHAL, CODE ENFORCEMENT AND
BUILDING SAFETY
  • 72A-2-3.5.1 Detectors should not be located in a
    direct airflow nor closer than 3 ft (1 m) from an
    air supply diffuser or return air opening.

53
NFPA 72 - National Fire Alarm Code Chapter 2 -
Initiating Devices
LOUISIANA DEPARTMENT OF PUBLIC
SAFETY AND CORRECTIONS OFFICE OF
STATE FIRE MARSHAL, CODE ENFORCEMENT AND
BUILDING SAFETY
  • 722-3.6.1.2 To avoid nuisance alarms, the
    location of smoke detectors shall take into
    consideration normal sources of smoke, moisture,
    dust or fumes, and electrical or mechanical
    influences.
  • 722-3.6.1.3 Detectors shall not be installed
    until after the construction cleanup of all
    trades is complete and final.
  • Exception Where required by the authority
    having jurisdiction for protection during
    construction. Detectors that have been installed
    during construction and found to have a
    sensitivity outside the listed and marked
    sensitivity range shall be cleaned or replaced in
    accordance with Chapter 7 at completion of
    construction.

54
NFPA 72 - National Fire Alarm Code Chapter 2 -
Initiating Devices
LOUISIANA DEPARTMENT OF PUBLIC
SAFETY AND CORRECTIONS OFFICE OF
STATE FIRE MARSHAL, CODE ENFORCEMENT AND
BUILDING SAFETY
  • 722-6 Sprinkler Waterflow Alarm-Initiating
    Devices
  • Requires the initiation of the alarm signal shall
    occur within 90 seconds of waterflow.
  • 722-7 Detection of Operation of Other Automatic
    Extinguishing Systems
  • 722-8 Manual Pull Stations
  • Requires that each box is mounted between 3.5
    and 4.5 a.f.f..
  • 722-9 Supervisory Signal - Initiating Devices

55
NFPA 72 - National Fire Alarm Code Chapter 2 -
Initiating Devices
LOUISIANA DEPARTMENT OF PUBLIC
SAFETY AND CORRECTIONS OFFICE OF
STATE FIRE MARSHAL, CODE ENFORCEMENT AND
BUILDING SAFETY
  • 722-10.3.1 To prevent the recirculation of
    dangerous quantities of smoke, a detector
    approved for air duct use shall be installed on
    the supply side of air-handling systems as
    required by NFPA 90A, Standard for the
    Installation of Air Conditioning and Ventilating
    Systems, and 2-10.4.2.1.
  • 90A4-4.2 Location. Smoke detectors listed for use
    in air distribution systems shall be located as
    follows
  • (1) Downstream of the air filters and ahead of
    any branch connections in air supply systems
    having a capacity greater than 2000 ft3/min (944
    L/sec).
  • (2) At each story prior to the connection to a
    common return and prior to any recirculation or
    fresh air inlet connection in air return systems
    having a capacity greater than 15,000 ft3/min
    (7080 L/sec) and serving more than one story.

56
NFPA 72 - National Fire Alarm Code Chapter 2 -
Initiating Devices
LOUISIANA DEPARTMENT OF PUBLIC
SAFETY AND CORRECTIONS OFFICE OF
STATE FIRE MARSHAL, CODE ENFORCEMENT AND
BUILDING SAFETY
  • 722-10.6 Smoke Detectors for Door Release
    Service.
  • 1017.2.1.8.2 In any building of low or ordinary
    hazard contents, as defined in 6.2.2.2 and
    6.2.2.3, or where approved by the authority
    having jurisdiction, doors shall be permitted to
    be automatic-closing, provided that the following
    criteria are met
  • (3) The automatic releasing mechanism or medium
    is activated by the operation of approved smoke
    detectors installed in accordance with the
    requirements for smoke detectors for door release
    service in NFPA 72, National Fire Alarm Code.

57
LOUISIANA DEPARTMENT OF PUBLIC
SAFETY AND CORRECTIONS OFFICE OF
STATE FIRE MARSHAL, CODE ENFORCEMENT AND
BUILDING SAFETY
NFPA 72 - National Fire Alarm Code Chapter 2 -
Initiating Devices
  • 722-10.6 Smoke Detectors for Door Release
    Service.

58
NFPA 72 - National Fire Alarm Code Chapter 3 -
Protected Premises Fire Alarm Systems
LOUISIANA DEPARTMENT OF PUBLIC
SAFETY AND CORRECTIONS OFFICE OF
STATE FIRE MARSHAL, CODE ENFORCEMENT AND
BUILDING SAFETY
  • 723-2.4 Nonrequired Systems.
  • 723-2.4.1 Nonrequired protected premises systems
    shall meet the requirements of this code.
  • 723-2.4.2 Nonrequired systems shall meet
    performance standards approved by the authority
    having jurisdiction.
  • Nonrequired Fire Alarm System Memorandum 2000-10
    - Exemption Request Form.

59
NFPA 72 - National Fire Alarm Code Chapter 3 -
Protected Premises Fire Alarm Systems
LOUISIANA DEPARTMENT OF PUBLIC
SAFETY AND CORRECTIONS OFFICE OF
STATE FIRE MARSHAL, CODE ENFORCEMENT AND
BUILDING SAFETY
  • 723-4.3.1 Requires the circuits (initiating
    device, notification appliance, and signaling
    line) to be classified as Class A or Class B,
    depending on the capability of the circuit to
    transmit alarm and trouble signals during
    nonsimultaneous single circuit fault conditions
    as specified by the following

60
NFPA 72 - National Fire Alarm Code Chapter 3 -
Protected Premises Fire Alarm Systems
LOUISIANA DEPARTMENT OF PUBLIC
SAFETY AND CORRECTIONS OFFICE OF
STATE FIRE MARSHAL, CODE ENFORCEMENT AND
BUILDING SAFETY
  • a) Circuits capable of transmitting an alarm
    signal during a single open or a nonsimultaneous
    single ground fault on a circuit conductor shall
    be designated as Class A.
  • b) Circuits not capable of transmitting an alarm
    beyond the location of the ground fault
    conditions specified in 3-4.3.1(a) shall be
    designated as Class B.
  • Note That faults on both Class A and Class B
    circuits shall result in a trouble condition

61
NFPA 72 - National Fire Alarm Code Chapter 3 -
Protected Premises Fire Alarm Systems
LOUISIANA DEPARTMENT OF PUBLIC
SAFETY AND CORRECTIONS OFFICE OF
STATE FIRE MARSHAL, CODE ENFORCEMENT AND
BUILDING SAFETY
62
NFPA 72 - National Fire Alarm Code Chapter 3 -
Protected Premises Fire Alarm Systems
LOUISIANA DEPARTMENT OF PUBLIC
SAFETY AND CORRECTIONS OFFICE OF
STATE FIRE MARSHAL, CODE ENFORCEMENT AND
BUILDING SAFETY
63
NFPA 72 - National Fire Alarm Code Chapter 3 -
Protected Premises Fire Alarm Systems
LOUISIANA DEPARTMENT OF PUBLIC
SAFETY AND CORRECTIONS OFFICE OF
STATE FIRE MARSHAL, CODE ENFORCEMENT AND
BUILDING SAFETY
  • 723-8.4.1.2 Requires the three-pulse pattern
    fire alarm evacuation signal in accordance with
    ANSI S3.41, Audible Emergency Evacuation Signal.

64
NFPA 72 - National Fire Alarm Code Chapter 3 -
Protected Premises Fire Alarm Systems
LOUISIANA DEPARTMENT OF PUBLIC
SAFETY AND CORRECTIONS OFFICE OF
STATE FIRE MARSHAL, CODE ENFORCEMENT AND
BUILDING SAFETY
  • 723-8.3.1.2 For fire alarm systems employing
    automatic fire detectors or waterflow detection
    devices, at least one fire alarm box shall be
    provided to initiate a fire alarm signal. This
    fire alarm box shall be located where required by
    the A.H.J. (Typically the Fire Marshals Office
    requires the pull station to be placed near the
    FACP.)
  • Exception Fire alarm systems dedicated to
    elevator recall control and supervisory service
    as permitted in 3-9.3.1.

65
NFPA 72 - National Fire Alarm Code Chapter 3 -
Protected Premises Fire Alarm Systems
LOUISIANA DEPARTMENT OF PUBLIC
SAFETY AND CORRECTIONS OFFICE OF
STATE FIRE MARSHAL, CODE ENFORCEMENT AND
BUILDING SAFETY
  • 723-8.3.3 Requires that the monitoring of
    sprinkler systems and other fire suppression
    systems for the protection of life and property
    shall give an initiation of a supervisory signal
    indicating an off-normal condition that could
    adversely affect the performance of the system.

66
NFPA 72 - National Fire Alarm Code Chapter 3 -
Protected Premises Fire Alarm Systems
LOUISIANA DEPARTMENT OF PUBLIC
SAFETY AND CORRECTIONS OFFICE OF
STATE FIRE MARSHAL, CODE ENFORCEMENT AND
BUILDING SAFETY
  • 723-8.3.2.5.1 The operation of an automatic
    fire suppression system installed within the
    protected premises shall cause an alarm signal at
    the protected premises fire alarm control unit.
  • 723-8.3.3.3.1 A supervisory signal shall
    indicate the off normal condition and its
    restoration to normal as appropriate to the
    system employed.

67
NFPA 72 - National Fire Alarm Code Chapter 3 -
Protected Premises Fire Alarm Systems
LOUISIANA DEPARTMENT OF PUBLIC
SAFETY AND CORRECTIONS OFFICE OF
STATE FIRE MARSHAL, CODE ENFORCEMENT AND
BUILDING SAFETY
  • 723-8.3.4 Automatic fire suppression system
    alarm-initiating devices and supervisory
    signal-initiating devices and their circuits
    shall be so designed and installed that they
    cannot be readily subject to tampering, opening,
    or removal without initiating a signal. This
    provision specifically includes junction boxes
    installed outside of buildings to facilitate
    access to the initiating device circuit.

68
NFPA 72 - National Fire Alarm Code Chapter 3 -
Protected Premises Fire Alarm Systems
LOUISIANA DEPARTMENT OF PUBLIC
SAFETY AND CORRECTIONS OFFICE OF
STATE FIRE MARSHAL, CODE ENFORCEMENT AND
BUILDING SAFETY
  • 723-8.3.3.3.2 Where a valve is installed in the
    connection between a signal attachment and the
    fire suppression system to which it is attached,
    such a valve shall be supervised in accordance
    with the requirements of Chapter 2.
  • NoteSealing or locking such a valve in the open
    position or removing the handle from the valve
    does not meet the intent of this requirement.

69
NFPA 72 - National Fire Alarm Code Chapter 3 -
Protected Premises Fire Alarm Systems
LOUISIANA DEPARTMENT OF PUBLIC
SAFETY AND CORRECTIONS OFFICE OF
STATE FIRE MARSHAL, CODE ENFORCEMENT AND
BUILDING SAFETY
  • 723-9.3 Elevator Recall
  • Requires system-type smoke detectors located in
    elevator lobbies, elevator hoistways, and
    elevator machine rooms used to initiate fire
    fighters service recall shall be connected to
    the building fire alarm system. In facilities
    without a building fire alarm system, these smoke
    detectors shall be connected to a fire alarm
    control panel designated as elevator recall
    control and supervisory panel.

70
NFPA 72 - National Fire Alarm Code Chapter 3 -
Protected Premises Fire Alarm Systems
LOUISIANA DEPARTMENT OF PUBLIC
SAFETY AND CORRECTIONS OFFICE OF
STATE FIRE MARSHAL, CODE ENFORCEMENT AND
BUILDING SAFETY
  • 723-9.3.4 Smoke detectors shall not be
    installed in elevator hoistways.
  • Exception Where the top of the elevator hoistway
    is protected by automatic sprinklers.
  • 723-9.4 Elevator Shutdown
  • The State Fire Marshals Office has ruled that
    new elevator installations shall utilized heat
    detectors instead of waterflow devices to
    shutdown power to the elevator before the
    introduction of water into the shaft from a
    sprinkler head.

71
NFPA 72 - National Fire Alarm Code Chapter 3 -
Protected Premises Fire Alarm Systems
LOUISIANA DEPARTMENT OF PUBLIC
SAFETY AND CORRECTIONS OFFICE OF
STATE FIRE MARSHAL, CODE ENFORCEMENT AND
BUILDING SAFETY
  • 723-8.4.3 Suppression System Actuation
  • Fire alarm systems listed for releasing service
    shall be permitted to provide automatic or manual
    actuation of fire suppression systems (i.e.
    halon, clean agents, etc).
  • 723-8.1 Interconnected Fire Alarm Control Units
  • If a facility has more that one fire alarm
    control panel, then those panels shall be
    interconnected to function as one system.

72
NFPA 72 - National Fire Alarm Code Chapter 3 -
Protected Premises Fire Alarm Systems
LOUISIANA DEPARTMENT OF PUBLIC
SAFETY AND CORRECTIONS OFFICE OF
STATE FIRE MARSHAL, CODE ENFORCEMENT AND
BUILDING SAFETY
  • 723-8.4.1.3 Emergency Voice/Alarm Communications
  • This section covers the requirements for
    Voice/Alarm Communications Systems. These systems
    are typically found in High Rise and Large
    Assembly Occupancies. These system not only
    provide evacuation but also emergency
    instructions to building occupants.

73
NFPA 72 - National Fire Alarm Code Chapter 3 -
Protected Premises Fire Alarm Systems
LOUISIANA DEPARTMENT OF PUBLIC
SAFETY AND CORRECTIONS OFFICE OF
STATE FIRE MARSHAL, CODE ENFORCEMENT AND
BUILDING SAFETY
  • 723-8.4.1.3.7 Two-Way Telephone Communication
  • This section covers the requirements for firemen
    phones. These devices are typically required
    pursuant to the high rise provision of NFPA 101 -
    Life Safety Code and the Standard Building Code.
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