NFPA 72 DECK Flashcards
NFPA 72 National fire alarm and signaling code
Provides the latest safety provisions to meet societys changing fire detection, signaling and emergency communications demands.
NFPA 72 National fire alarm and signaling code PART 2
In addition to the core focus on fire alarm systems the code includes requirements for mass notification systems used for weather emergencies;terrorist events;biological;chemical;and nuclear emergencies and other threats
Application
24.1.1
The application, installation, and performance of emergency communications systems and their components shall comply with the requirements of this chapter.
Application
24.1.2
The requirements of this chapter shall apply to emergency communications systems within buildings and outdoor areas.
**An emergency communications system could target the general building , area, space, campus or region.
Application
24.1.3
The requirements of chapters 10,12,17,18,21,23,26 and 27 shall also apply, unless they are in conflict with this chapter.
Application
24.1.4
The requirements of Ch 14 shall apply.
Application
24.1.5
The requirements of this chapter shall not apply to Ch 29 unless specifically indicated.
Purpose
24.2.1
The systems covered under Ch 24 are for the protection of life by indicating the existence of an emergency situation and communicating information necessary to facilitate and appropriate response and action.
Purpose
24.2.2
This Ch. establishes minimum required levels of performance, reliability, and quality of installation for emergency communications systems but does not establish the only methods by which these requirements are to be achieved.
Purpose
24.2.3
An emergency communications system is intended to communicate information about emergencies including , but no limited to , fire, human caused events(accidental and intentional), other dangerous situations . accidents , and natural disasters,
General
24.3.1 **
INTELLIGIBLE VOICE MESSAGES. Emergency communication systems shall be capable of the reproduction of prerecorded , synthesized, or live(e.g., microphone, telephone, handset and radio ) messages with voice intelligibility in accordance with Ch. 18.
General
24.3.2 **
REQUIRED EMERGENCY COMMUNICATIONS SYSTEMS. An emergency communications system shall be installed in occupancies where required by the authority having jurisdiction or by other applicable governing laws, codes or standards.
Nonrequired (Voluntary) Emergency Communications Systems
24.3.3.1
Nonrequired Emergency Communications Systems and components shall meet the requirements of this chapter
Nonrequired (Voluntary) Emergency Communications Systems
24.3.3.2
Nonrequired Emergency Communications Systems and components shall be identified on the record drawings required in 10.18.2.3(2)
Ancillary Functions
24.3.4.1
Ancillary functions, including the use of a fire alarm system or mass notification for general paging, background music, or other non-emergency functions are permited and shall not interfere with the performance requirements of the fire alarm system or the mass notifications system.
Ancillary Functions
24.3.4.2
Fire alarm system speakers providing ancillary functions shall meet the conditions of either 24.3.4.2(1) or (2):
(1)The fire command center shall be constantly attended by trained personnel, and selective paging is permitted by the AHJ.(2)all of the following shall be met (a)the speakers and associated audio eqip are installed or located with safeguards to resist tampering or misadjustment of those components essential for intended emergency notification(b)the monitoring integrity requirements of section 10.17 continue to be met while the system is used for non-emergency purposes
Ancillary Functions
24.3.4.3
Where ancillary functions are not monitored for integrity, they shall be inspected periodically in accordance with the frequency identified in Ch. 14
Pathway survivability
24.3.5.1
Pathway survivability levels shall be as described in section 12.4
Pathway survivability
24.3.5.2
Other component survivability shall comply with the provisions of 24.4.1.8.4.6
Pathway survivability
24.3.5.3
the pathway survivability requirements in 24.3.5.4 through 24.3.5.12 shall apply to notification and communications circuits necessary to ensure the continued operation of the emergency communications system.
Pathway survivability
24.3.5.4
In-building fire emergency voice/alarm communications systems shall comply with 24.3.5.4.1 or 24.3.5.4.2
Pathway survivability
24.3.5.4.1
For systems employing relocation or partial evacuation, a level 2 or level 3 pathway survivability shall be required.
Pathway survivability
24.3.5.4.2
For systems that do not employ relocation or partial evacuation, a level 0 ,level 1,level 2 or level 3 pathway survivability shall be required.
Pathway survivability
24.3.5.4.3
refer to annex g for previous nomenclature and cross reference.
Pathway survivability
24.3.5.5
In-building mass notification systems shall be permitted to have a level 0 pathway survivability or greater if determined by risk analysis.
Pathway survivability
24.3.5.6
all circuits for wide-area mass notification systems shall be permitted to have a level 0 pathway survivability or greater if determined by a risk analysis.
Pathway survivability
24.3.5.7
Two-way in-building wired emergency communications systems shall have a pathway survivability of level2 or level 3
Pathway survivability
24.3.5.8
two way radio communications enhancement systems shall comply with 24.3.5.8.1 and 24.3.5.8.2
Pathway survivability
24.3.5.8.1
Where two-way radio comnunications enhancement system. exclusive of the antennae, is used in lieu of a two-way in-building wired emergency communications system, it shall have a pathway survivability of level 2 or level 3
Pathway survivability
24.3.5.8.2
Where two-way radio comnunications enhancement system is used in lieu of a two-way in-building wired emergency communications system the design of the system shall be approved by the authority having jurisdiction
Pathway survivability
24.3.5.9
Area of refuge emergency communications systems shall comply with 24.3.5.9.1 and 24.3.5.9.2
Pathway survivability
24.3.5.9.1
Area of refuge emergency communications systems shall have a pathway survivability of level 2 or level 3
Pathway survivability
24.3.5.9.2
circuits intended to transmit off premises shall have a pathway survivability level 0,level 1,level 2 or level 3
Pathway survivability
24.3.5.10
elevator emergency communications systems shall have a pathway survivability of level 0, level 1, level 2 or level 3
Pathway survivability
24.3.5.11
Central command station emergency communications systems shall have a pathway survivability as determined by the risk analysis.
Pathway survivability
24.3.5.12
all other emergency communications systems circuits shall have a pathway survivability as determined by the risk analysis.
System Classificaton
24.3.6
emergency communications systems (ECS) shall consist of two classifications of systems, one-way and two-way
One way communications systems
24.4.1
IN BUILDING FIRE EMERGENCY VOICE/ALARM COMMUNICATIONS SYSTEMS(EVACS). subsection 24.4.1 shall be used in the design and applications of in-building fire emergency voice/alarm communications for fire alarm systems.
One way communications systems
24.4.1.1
AUTOMATIC RESPONSE the in-building fire emergency voice/alarm communications system shall be used to provide an automatic response to the receipt of a signal indicative of a fire alarm or other emergency.
One way communications systems
24.4.1.1.1
when the monitoring location is constantly attended by trained operators, and operator acknowledgement of receipt of a fire alarm or other emergency signal is received within 30 seconds , automatic response shall not be required.
One way communications systems
24.4.1.1.2
if acceptable to the authority having jurisdiction, the system shall permit the application of an automatic evacuation signal to one or more evacuation signaling zones and, at the same time, shall permit manual voice paging to the other evacuation signaling zones selectively or in any combination.
Voice evacuations messages
24.4.1.2.1
Evacuation messages shall be preceded and followed by a minimum of two cycles of the emergency evacuation signal specified in 18.4.2
Voice evacuations messages
24.4.1.2.2
voice messages shall comply with the requirements of 24.3.1
Voice evacuations messages
24.4.1.2.2.1
the following requirements shall be met for layout and design: (1) the speaker layout of the system shall be designed to ensure intelligibility and audibility(2)intelligibility shall first be determined by ensuring that all the areas in the building have the required level of audibility.(3)the design shall incorporate speaker placement to provide intelligibility.
Voice evacuations messages
24.4.1.2.2.2 **
system design shall incorporate designation of acoustically distinguishable spaces (ADS) within the occupied areas as required in Ch.18
Voice evacuations messages
24.4.1.2.2.3
audibility shall be required in all areas in accordance with ch 18
Voice evacuations messages
24.4.1.2.2.4
unless specifically required by the AHJ , intelligibility shall not be required in the following locations: (1)private bathrooms, shower rooms, saunas and similar rooms(2)Mechanical/electrical/elevator equipment rooms(3)elevator cars(4)individual offices(5)Kitchens(6)storage rooms(7)closets(8)rooms/areas where intelligibility cannot be reasonably predicted
Positive alarm sequence
24.4.1.3
In-building fire emergency voice/alarm communications systems shall be permitted to use positive alarm sequence complying with 23.8.1.3
Tones
24.4.1.4
TONES. the tone preceding any message shall be permitted to be a part of the voice message or to be transmitted automatically from a separate tone generator.
Tones
24.4.1.4.1
In occupancies where sleeping accommodations are provided the pre-alert tone shall include a low frequency component of 520Hz square wave range to accommodate the need of the hearing impaired for fire voice messages and emergency communication messages.
Controls
24.4.1.5.1 **
controls for the in-building fire emergency voice/alarm communications system shall be at a location approved by the authority having jurisdiction.
Controls
24.4.1.5.2
controls shall be located or secured to allow access only by trained and authorized personnel
Controls
24.4.1.5.3
Operating controls shall be clearly identified
Controls
24.4.1.5.4
if there are multiple in-building fire emergency voice/alarm communications control locations , only one shall be in control at any given time
Controls
24.4.1.5.5
The location having control of the system shall be identified by a visible indication at the location.
Controls
24.4.1.5.6
Manual controls shall be arranged to provide visible indication of the on/off status for their associated evacuation signaling zone.
Controls
24.4.1.5.7
if live voice instructions are provided, they shall perform as follows:(1)override previously initiated signals to the selected notification zones.(2)Have priority over any subsequent automatically initiated signals to the selected zones
Speakers
24.4.1.6.1
Speakers and their enclosures shall be installed in accordance with ch 18
Speakers
24.4.1.6.2
Speakers used as alarm notifications on fire alarm systems shall also be permitted to be used for mass notification.
Priority
24.4.1.7.1
Notification appliances required to provide special suppression pre-discharge notification shall not be overridden by other systems.
Priority
24.4.1.7.2
When the fire alarm system has been activated, and mass notification has been given priority over the fire alarm system, a distinctive audible and visible indication shall be provided at the building fire alarm control unit,
Priority
24.4.1.7.3
it shall not be required to transmit this condition to a supervising station.
Priority
24.4.1.7.4
the fire alarm system shall not automatically override emergency mass notification messages. Priority of mass notification messages over fire alarm evacuation shall be permitted when evaluated by the stakeholders through a risk analysis in accordance with 24.4.2.2
Relocation and partial Evacuation
24.4.1.8
the requirements of 24.4.1.8 shall apply only to systems used for relocation or partial evacuation during fire condition.
Relocation and partial Evacuation
24.4.1.8.1
systems shall be provided with manual voice transmission capabilities selectively to one or more zones or on an all call basis.
Relocation and partial Evacuation
24.4.1.8.2
Under a fire condition , where the system is used to transmit relocation instructions or other fire emergency non evacuation messages , a 1-second to 3-second alert tone followed by a message(or messages where multi-channel capabilities is used) shall be provided.
Relocation and partial Evacuation
24.4.1.8.2.1
the sequence [the alert tone followed by the messages] shall be repeated at least three times to inform and direct occupants in the evacuation signaling zone where the alarm initiation originated, as well as other evacuation signaling zones in accordance with the building fire safety plan.
Relocation and partial Evacuation
24.4.1.8.2.2
approved alternative fire alarm notification scheme shall be permitted so long as the occupants are effectively notified and are provided instructions in a timely and safe manner in accordance with the building fire safety plan,
Relocation and partial Evacuation
24.4.1.8.3
where provided, speakers in each enclosed stairway shall be connected to a separate notification zone for manual paging only
Relocation and partial Evacuation
24.4.1.8.4
the requirements of 24.4.1.8.4 shall apply to both audible(tone and voice) and visible notification appliance circuits.
Relocation and partial Evacuation
24.4.1.8.4.1 **
fire alarm systems used for partial evacuation and relocation shall be designed and installed such that attack by fire within an evacuation signaling zone does not impair control and operation of the notification appliances outside the evacuation signaling zone.
Relocation and partial Evacuation
24.4.1.8.4.2
performance features provided to ensure operational reliability under adverse conditions shall be described and technical justification provided in the documentation submitted to the AHJ with the analysis required in 23.4.3.1
Relocation and partial Evacuation
24.4.1.8.4.3 **
all circuits necessary for the operation of the notification appliances shall be protected until they enter the evacuation signaling zone that they serve by the protection provided by the pathway survivability level required in 24.3.5.4.1 or by performance alternatives approved by the AHJ
Relocation and partial Evacuation
24.4.1.8.4.4
Where the separation of in-building fire emergency voice/alarm control equipment locations results in the portions of the system controlled by one location being dependent upon the control equipment in other locations, the circuits between the dependent controls shall be protected against attack by fire by the protection provided by the pathway survivability level required in 24.3.5.4.1 or by performance alternatives approved by the authority having jurisdiction.
Relocation and partial Evacuation
24.4.1.8.4.5
Protection of circuits between redundant control equipment locations that are not mutually dependent shall not be required.
Relocation and partial Evacuation
24.4.1.8.4.6
where the separation of the in-building fire emergency voice/alarm control equipment occurs as in 24.4.1.8.4.4 and where the circuits are run through junction boxes, terminal cabinets or control equipment, such as system control units, power supplies and amplifiers, and where cable integrity is not maintained, these components shall, in addition to the pathway survivability required by 24.3.5.4.1, be protected by using one of the following methods:(1)a 2 hour fire rated enclosure(2)a 2 hour fire rated room(3)other equivalent means to provide a 2 hour fire resistance rating approved by the AHJ
Relocation and partial Evacuation
24.4.1.8.4.7
paragraphs 24.4.1.8 through 24.4.1.8.4.6 shall not automatically apply when relocation or partial evacuation is if a non-fire emergency unless identified and required by a risk analysis
evacuation signal zoning
24.4.1.9.1 **
Undivided fire or smoke areas shall not be divided into multiple evacuation signaling zones.
evacuation signal zoning
24.4.1.9.2
If multiple notification appliance circuits are provided within a single evacuation signaling zone, all of the non-notification appliances within the zone shall be arranged to activate or deactivate simultaneously, either automatically or by actuation of a common manual control.
evacuation signal zoning
24.4.1.9.3
Where there are different notification appliance circuits within an evacuation signaling zone that perform separate functions, such as presignal and general alarm signals and prdischarge and discharge signals they shall not be required to activate or deactivate simultaneously,
In-Building Mass Notification Systems
24.4.2
the requirements of 24.4.2 shall apply to mass notification systems installed in buildings or structures for the purpose of notifying and instructing occupants in an emergency.
In-Building Mass Notification Systems
24.4.2.1 **
GENERAL PERFORMANCE. The performance, selection, installation, operation and use of a mass notification shall comply with the requirements of 24.4.2
In-Building Mass Notification Systems
24.4.2.1.1
Interconnection of protected premises emergency control functions with the mass notification systems shall comply with ch 21
In-Building Mass Notification Systems
24.4.2.1.2
An in-building mass notification system shall include or of more of the following components:(1)autonomous control unit ACU (2)Local operating console LOC (3) fire alarm control interface(4)notification appliance network(5)initiating devices(6)*interface to other sytems and alerting sources
In-Building Mass Notification Systems
24.4.2.1.3
KNOW THIS
Control units installed as part of a mass notification system shall be in compliance with this code and applicable standards such as ANSI/UL 864, Standard for Control Units and Accessories for Fire Alarm Systems, or UL2017, Standard for General Purpose Signaling Devices and Systems
In-Building Mass Notification Systems
24.4.2.1.4
Mass notification system components shall be installed, tested and maintained in accordance with the manufacturer’s published instructions and this code
In-Building Mass Notification Systems
24.4.2.1.5
In-building emergency mass notification operation shall be permitted to be initiated by manual or automatic means
In-Building Mass Notification Systems
24.4.2.1.6
mass notification system activation shall initiate recorded messages or live voice and visible notification
In-Building Mass Notification Systems
24.4.2.1.7
The priority level of recorded messages shall be determined by the emergency response plan.
In-Building Mass Notification Systems
24.4.2.1.8
Only recorded messages determined by the emergency response plan to be of higher priority than fire alarm activation shall be permitted to override the fire alarm notification and initiate the mass notification priority indicator.
In-Building Mass Notification Systems
24.4.2.1.9
Activation of any other recorded messages shall not interfere with the operation of fire alarm notifications.
In-Building Mass Notification Systems
24.4.2.1.10
initiation of live voice announcements from microphones on the fire alarm system at an ACU, and at an LOC, shall not automatically place the fire alarm system in a mass notification priority mode,
In-Building Mass Notification Systems
24.4.2.1.11
combination of mass notification with fire alarm systems shall be permitted and shall meet the requirements of 23.8.4
Risk analysis for Mass Notifications Systems
24.4.2.2.1 **
Each application of a mass notification system shall be specific to the nature and anticipated risks of each facility for which it is designed.
Risk analysis for Mass Notifications Systems
24.4.2.2.2
the designer shall consider both fire and non-fire emergencies when determining risk tolerances for survivability for the mass notification system.
Risk analysis for Mass Notifications Systems
24.4.2.2.3
performance-based design and the risk analysis shall be applied inaccordance with section 24.7
Risk analysis for Mass Notifications Systems
24.4.2.2.4
the risk analysis shall be used as the basis for development of the emergency response plan.
Risk analysis for Mass Notifications Systems
24.4.2.3**
EMERGENCY RESPONSE PLAN ELEMENTS. a well-defined emergency response plan shall be developed in accordance with NFPA 1600, Standard on Disaster/Emergency Management and Business Community Programs, and NFPA 1620, Recommended Practice for Pre- Incident Planning, as part of the design and implementation of a mass notification system,
Risk analysis for Mass Notifications Systems
24.4.2.4
System operation
Risk analysis for Mass Notifications Systems
24.4.2.4.1 **
authorized personnel shall be permitted to control message initiation over the mass notification system
Risk analysis for Mass Notifications Systems
24.4.2.4.2 **
where identified by the risk analysis, the mass notification system shall provide the capability for authorized personnel to remotely activate live and prerecorded emergency messages
Risk analysis for Mass Notifications Systems
24.4.2.4.3 **
operating controls shall be clearly identified
Risk analysis for Mass Notifications Systems
24.4.2.4.4
if there are multiple control locations, only one
shall be in control at any given time.
Risk analysis for Mass Notifications Systems
24.4.2.4.5
if there are multiple control locations, a visible indication shall be provided at all other control locations indicating that another control location is in use
Risk analysis for Mass Notifications Systems
24.4.2.4.6
Manual controls shall be arranged to provide visible indication of the on/off status for their associated notification zone.
Risk analysis for Mass Notifications Systems
24.4.2.4.7
if live voice instructions are provided, they shall perform as follows:(1)Override previously initiated signals to the selected notification zones(2)Have priority over any subsequent automatically initiated signals to the selected zone.
Risk analysis for Mass Notifications Systems
24.4.2.4.8
A manual means shall be provided at each mass notification system control location to permit the mass notification system to relinquish control of the fire alarm system
Risk analysis for Mass Notifications Systems
24.4.2.4.9 **
During the period after the mass notification system has seized control of the audible notification appliances, but before the mass notification system relinquishes control, and audible and visible signal shall be actuated by the notification appliances at least once every 30 seconds.
Risk analysis for Mass Notifications Systems
24.4.2.5.1
COVERAGE: The mass notification system shall provide for live voice and prerecorded localized messaging within a protected individual building, areas surrounding the building, and other outdoor designated areas
Risk analysis for Mass Notifications Systems
24.4.2.5.2
notification zones shall be established on the basis of risk analysis
Risk analysis for Mass Notifications Systems
24.4.2.5.3 **
if the mass notification system serves more than one building, it shall be capable of providing separate messages to one individual or to multiple buildings at any given time.
Risk analysis for Mass Notifications Systems
24.4.2.6.1 **
SPEAKER CIRCUITS. Speaker circuits used for mass notification that are not fire alarm circuits shall be exempt from the monitoring requirements of this Code, provided that alternate methods of achieving comparable reliability are accepted by the AHJ
Risk analysis for Mass Notifications Systems
24.4.2.6.2
Survivability for speaker circuits used for mass notification shall be determined by the risk analysis for the building,
Risk analysis for Mass Notifications Systems
24.4.2.7.1
Documentation:
SECURITY: Security for mass notification systems documentation shall be determined by the stake holders
Risk analysis for Mass Notifications Systems
24.4.2.7.2
RECORD OF COMPLETION
Risk analysis for Mass Notifications Systems
24.4.2.7.2.1
a record of completion form as shown in Figure 10.18.2.1.1 shall be required for documentation of the mass notification system.
Risk analysis for Mass Notifications Systems
24.4.2.7.2.2
All systems that are modified after the initial installation shall have the original record of completion revised to show all changes from the original information and shall be identified with a revision date.
Risk analysis for Mass Notifications Systems
24.4.2.7.2.3
REQUIRED DOCUMENTATION: every system shall include the following documentation which shall be delivered to the owner or the owners representative upon final acceptance of the system:(1)an owners manual including a complete set of operations and maintenance manuals, manufacturer’s published instructions, and product data sheets covering all system equipment,(2)record and as-built drawings(3)one current copy of the record of completion form updated to reflect all system additions or modifications,(4)for software-based systems, a record copy of the system specific software.(5)emergency response plan. with operational management procedures defined for management and activation of the system
Risk analysis for Mass Notifications Systems
24.4.2.7.2.4
DOCUMENT ACCESSIBILITY
Risk analysis for Mass Notifications Systems
24.4.2.7.2.4.1
an as-built plans cabinet shall be provided to house the documentation required in 24.4.2.7.3
Risk analysis for Mass Notifications Systems
24.4.2.7.2.4.2
the cabinet shall be sized so that it can neatly contain all necessary documentation, including future inspection and service reports.
Risk analysis for Mass Notifications Systems
24.4.2.7.2.4.3
contents of the cabinet shall be accessible by authorized personnel only
Risk analysis for Mass Notifications Systems
24.4.2.7.2.4.4
mass notification system and fire alarm system as-built plans and other related documentation shall be permitted to be maintained together, including the appearance of both systems on the same drawings
Risk analysis for Mass Notifications Systems
24.4.2.7.2.4.5
the requirements of 10.18.3 and section 14.6 shall be applicable for mass notification system records and record keeping
Risk analysis for Mass Notifications Systems
24.4.2.8
IMPAIRMENTS: the requirements of section 10.19 shall be applicable when a mass notification system is impaired
Risk analysis for Mass Notifications Systems
24.4.2.9
INSPECTION, TESTING, AND MAINTENANCE REQUIREMENTS: mass notification systems shall be inspected, tested, and maintained in accordance with the manufacturer’s requirements and the inspection, testing and maintenance requirements of ch 14
Risk analysis for Mass Notifications Systems
24.4.2.10 **
SYSTEM PRIORITIES: priority levels shall be established on the basis of the risk analysis
Risk analysis for Mass Notifications Systems
24.4.2.11
INITIATION INDICATION: the source of system activation shall be visibly and audibly indicated at the central control station and at the building control unit, unless otherwise determined by the risk analysis,
INITIATING DEVICES
Systems 24.4.2.12
INITIATING DEVICES
INITIATING DEVICES
Systems 24.4.2.12.1
devices connected to a mass notification system for the purpose of initiating an automatic response to an emergency shall be evaluated based on the risk analysis
INITIATING DEVICES
24.4.2.12.2**
all mass notification initiating devices shall be listed for their intended purpose
INITIATING DEVICES
24.4.2.12.3
where no listed device exists for the detection required by the emergency response plan, nonlisted devices shall be permitted to be used if their failure will not impair the operation of the mass notifications system
INITIATING DEVICES
24.4.2.12.4
Non-fire emergency manual actuating stations(boxes) shall be listed with and applicable standard such as ANSI/UL 2017, Standard for General
INITIATING DEVICES
24.4.2.12.5
non-fire emergency manual actuating boxes shall have tactile markings, be of a contrasting color to manual fire alarm boxes on the protected premises, and not be red
INITIATING DEVICES
24.4.2.12.6
non fire emergency manual actuating boxes shall be installed similarly to manual fire alarm boxes in accordance with the requirements of 17.14.3 through 17.14.5
Secure Access of Fire Alarm/ Mass Notifications System Interface
24.4.2.13 **
Secure Access of Fire Alarm/ Mass Notifications System Interface. Access to and physical protection of the fire alarm/mass notification system interface shall be determined by the risk analysis and as defined in the emergency response plan.
Autonomous Control Unit (ACU)
24.4.2.14
Autonomous Control Unit (ACU)
Autonomous Control Unit (ACU)
24.4.2.14.1
where provided, the building ACU shall monitor and control the notification appliance network.
Autonomous Control Unit (ACU)
24.4.2.14.2
building occupants meeting the requirements of 24.4.2.4.1 shall be permitted to initiate communications from the ACU
Autonomous Control Unit (ACU)
24.4.2.14.3
unless otherwise identified through the risk analysis actions taken at the building ACU shall take precedence over actions taken at any remote location, including the local operating console, or inputs from a wide-area mass notification system
Autonomous Control Unit (ACU)
24.4.2.14.4
When there are multiple ACUs controlling the same notification appliance network, only one shall be in control at any given time
Autonomous Control Unit (ACU)
24.4.2.14.5
when the ACU is integrated with the building fire alarm control unit to form one combined system that performs both functions, the system shall meet the standby power requirements of this chapter
Autonomous Control Unit (ACU)
24.4.2.14.6
when a combined system is installed with an ACU and fire alarm control unit and placed in separate equipment enclosures, the ACU and fire alarm control unit shall be interfaced as required by this chapter
Autonomous Control Unit (ACU)
24.4.2.14.7
when the ACU is part of a stand-alone mass notification system and no fire alarm system exists, the ACU shall meet the requirements if this chapter
Local Operating Console
24.4.2.15
Local Operating Console(LOC)
Local Operating Console
24.4.2.15.1
building occupants meeting the authorized personnel requirement of 24.4.2.4.1 shall be permitted to initiate communications from the LOC
Local Operating Console
24.4.2.15.2
the use of lock wire seals or break glass type enclosures to house the operating consoles for the system, or equivalent protection against unauthorized use, shall be permitted.
Local Operating Console
24.4.2.15.3
operating controls shall be clearly identified
Local Operating Console
24.4.2.15.4
if there are multiple control locations only one shall be in control at any given time
Local Operating Console
24.4.2.15.5
the location having control of the system shall be identified by a visible indication at that location
Local Operating Console
24.4.2.15.6
manual controls shall be arranged to provide visible indication of the on/off status for their associated notification signaling zone.
Local Operating Console
24.4.2.15.7
if live voice instruction are provided , they shall override previously initiated signals to the selected notification zone and shall have priority over any subsequent automatically initiated signals to selected zones
Voice message Priority
24.4.2.16
Voice message Priority
Voice message Priority
24.4.2.16.1 **
the priority of mass notification messages shall be established using risk analysis
Voice message Priority
24.4.2.16.2
the local building mass notification system shall have the ability to override the fire alarm system with live voice or manual activation of a high priority messaged, but only where that message and operation are approved under the risk analysis.
Voice message Priority
24.4.2.16.3
all other messages shall also be prioritized by using the risk analysis method
Voice message Priority
24.4.2.16.4
when identified by the risk analysis and emergency response plan, messaged from the mass notification system shall take priority over fire alarm messages and signals
Voice message Priority
24.4.2.16.5
if the fire alarm system is in the alarm mode and a recorded voice message or the audible signals are sounding, and the mass notification system is actuated, it shall cause deactivation of all fire alarm-initiated audible and visible notification appliances, unless they have also been designated for mass notification use
Voice message Priority
24.4.2.16.6
after the mass notification system relinquishes control the following shall occur(1)without an active fire alarm signal, the fire alarm system shall automatically restore to normal operation.(2)with an active fire alarm signal the fire alarm system shall operate based on the emergency response plan.
Voice message Priority
24.4.2.16.7
Deactivation of fire alarm audible and visible notification signals shall cause an individually identified supervisory signal to be initiated at the building fire alarm control unit for each affected fire alarm control unit
Voice message Priority
24.4.2.16.8
the fire alarm signal deactivation function shall be permitted to occur only when both the fire alarm system is in alarm condition and a voice message is initiated by the mass notification system.
Voice message Priority
24.4.2.16.9
when the fire alarm notification is overridden as permitted in 24.4.2.16.8 all other features of the fire alarm system shall remain unaffected.
Message Content
24.4.2.17
Message Content
Message Content
24.4.2.17.1
for an evacuation message, a tone in accordance with 18.4.2 shall be used with a minimum of two cycles preceding and following the voice message.
Message Content
24.4.2.17.2
a test message that clearly states “ this is a test” shall be provided
Volume Control
24.4.2.18
volume control
Volume Control
24.4.2.18.1
local control shall be permitted to adjust volume levels of non-emergency signals such as, but not limited to , background music and building paging.
Volume Control
24.4.2.18.2
upon activation of an emergency signal, the system shall override any local volume setting to deliver at a preset volume setting that has been established through testing and acceptance of sound level and speech intelligibility as required by this Code
Visible Notification
24.4.2.19
Visible Notification
Visible Notification
24.4.2.19.1
where audible notification is provided, mass notification systems shall also provide visible notification information to serve the hearing impaired and for high noise areas
Visible Notification
24.4.2.19.2
the visible notification required by 24.4.2.19.1 shall be accomplished using strobes
Visible Notification
24.4.2.19.3
In addition to the strobes required by 24.4.2.19.1 textual, graphic, or video displays shall be permitted,
Visible Notification
24.4.2.19.4
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