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NFPA 72-2010

Fire Alarm and Signaling Code Overview

© Siemens Industry, Inc. All rights reserved.

EngineeringAdvantage™

Siemens Building Technologies, Inc. is a Registered Provider with The American Institute of Architects Continuing Education Systems. Credit earned on completion of this program will be reported to CES Records for AIA members.

Certificates of Completion for non-AIA members are available on request.

This program is registered with the AIA/CES for continuing professional education. As such, it does not include content that may be deemed or constructed to be an approval or endorsement by the AIA of any material of construction or any method or manner of handling, using, distributing, or dealing in any material or product.

Questions related to specific materials, methods, and services will be addressed at the conclusion of this presentation.

AIA/CES



Course Description

NFPA 72 2010 Fire Alarm & Signaling Code Updates (FAS106)

There was an extensive update of all sections of the NFPA 72 Fire Alarm and

Signaling Code from 2007 to 2010 and we cover the various updates and

changes. A highlight of the new format and the chapter 24 that is dedicated to

emergency communication is covered in depth. From wiring classifications to

intelligibility we dig into the details to keep you up to date on the changes that

affect system design and application.

Learning Objectives

1. Identify key code sections to consider for future designs.

2. How to plan for future and existing building life safety systems

3. Outline and survey existing infrastructure for proper communication

4. Understanding of how the new code is developed to be more than just fire

alarm



• General Overview

• Fundamentals

• Initiating Devices

• Protected Premises

• Circuit & Pathways

• Notification Appliances

• Emergency Control Functions & Interfaces

• Supervisory Station

• Public Reporting

• Inspection, Testing & Maintenance

• Household

• Emergency Communication Systems (ECS)• Details on ECS• Review of MNS Challenges

Course Outline

Please be sure to include SIEMENS

in all of your future specifications

for building solutions!

This presentation will cover the following topics



The 2010 National Fire Alarm and Signaling Code

72-2010 has a New Name, and has more changes than any other edition in

the history of NFPA 72 since 1990



Why the Change in the Title of the Code

NFPA 72 now includes many issues in addition to Fire Alarm Systems

• Combination Systems

• Video Imaging Detection

• Carbon Monoxide Detection

• Supervisory Service of Sprinkler Control Valves

• Water Level Supervisory

• Water Temperature Supervisory

• Room Temperature Supervisory

• Fire Extinguisher Monitoring



What is Changing in 2010 of 72?



Take FIRE out of 2010 of 72?

FIRE



NFPA TCC Directive for 2010

NFPA TCC Directive for 2010

• Remove the word "fire" wherever possible,

or replace with "Emergency"

• Chapter 4 –

Fundamentals of Fire Alarm Systems

• Chapter 26 –

Supervising Station Fire Alarm Systems FIRE



NFPA 72, 2010

Chapter Re-Organization

2007 edition had 11 Chapters 2010 edition will have 29 Chapters

• Administrative Chapters

• Support Chapters

• System Chapters

• Usability Chapters



NFPA 72 Chapters – Currently in 2007

• Chapters 1 – 4 Administration, Definitions

& Fundamentals

• Chapter 5 – Initiating Devices

• Chapter 6 – Protected Premises Fire Alarm

Systems

• Chapter 7 – Notification Appliances

• Chapter 8 – Supervising Stations

• Chapter 9 – Public Fire Alarm Reporting Systems

• Chapter 10 – Inspection, Testing & Maintenance

• Chapter 11 – Single & Multiple Station

Alarms Household Systems



AdministrativeChapters

1 - 9

SupportChapters

10 - 19

SystemChapters

20 - 29

UsabilityAnnexes

A - I

1. Administration

2. ReferencedPublications

3. Definitions

4. Reserved

5. Reserved

6. Reserved

7. Reserved

8. Reserved

9. Reserved

10. Fundamentals

11. Reserved

12. Circuits and Pathways

13. Reserved

14. Inspection, Testing, and Maintenance

15. Reserved

16. Reserved

17. Initiating Devices

18. NotificationAppliances

19. Reserved

20. Reserved

21. Emergency Control Functions and Interfaces

22. Reserved

23. Protected Premises Fire Alarm Systems

24. Emergency Communications Systems

25. Reserved

26. Supervising Station Alarm Systems

27. Public Emergency Alarm Reporting Systems

28. Reserved

29. Single- and Multiple-Station Alarms and Household Fire Alarm Systems

A. Explanatory Material

B. Engineering Guide for Automatic Fire Detector Spacing

C. System Performanceand Design Guide

D. Speech Intelligibility

E. NEMA SB 30, Fire Service Annunciatorand Interface

F. Sample Ordinance Adopting NFPA 72

G. Informational References

H. Cross-Reference Table

I. Index

NFPA 72 National Fire Alarm and Signaling Code



Administrative Chapters

• Chapter 1 Administration – 2007 Existing

• Chapter 2 Referenced Publications –

2007 Existing

• Chapter 3 Definitions – 2007 Existing

• Chapter 4 Reserved








Support Chapters

• Chapter 10 Fundamentals – 2007 Chapter 4


• Chapter 12 Circuits and Pathways – New


• Chapter 14 Inspecting, Testing & Maintenance – 2007



• Chapter 17 Initiating Devices – 2007 Chapter 5

• Chapter 18 Notification Appliances – 2007 Chapter 7




System Chapters


• Chapter 21 Emergency Control Functions – New


• Chapter 23 Protected Premises Fire Alarm

Systems – 2007 Chapter 6

• Chapter 24 Emergency Communications

Systems – 2010 proposed Chapter 12




System Chapters

• Chapter 26 Supervising Station Alarm Systems –

2007 Chapter 8

• Chapter 27 Public Emergency Alarm

Reporting Systems – 2007 Chapter 9


• Chapter 29 Single- and Multiple-Station Alarms

and Household Fire Alarm Systems –

2007 Chapter 11



Usability Annexes

• Annex A Explanatory Material

• Annex B Engineering Guide for Automatic

Fire Detection Spacing

• Annex C System Performance Design Guide

• Annex D Speech Intelligibility-NEW

• Annex E NEMA SB 30

• Annex F Sample Ordinance for Adopting NFPA 72

• Annex G Informational References

• Annex H Cross References-Updated




• Fundamentals









• Household


Course Outline







Chapters 1 through 4

The scope has been changed to:

• NFPA 72 covers the application, installation, location,

performance, inspection, testing and maintenance of

fire alarm systems, fire warning equipment, and

emergency communication systems and their

components.

• Emergency Communications Systems shall be

classified as follows:

• In Building Emergency Communications Systems

• In Building Mass Notification Systems

• Wide Area Mass Notification Systems

• Distributed Recipient Mass Notification Systems

Two Way Emergency Communication Systems

• In Chapter 3-Definitions, there are 74 new definitions

• Chapter 10 is now to be called Fundamentals



Chapters 10 New Fundamentals

10.15 Protection of Fire Alarm Systems

• The exception has been removed in 10.15. This

allowed that there be no smoke or heat detector

protecting the FACU or power supplies if the building

was fully sprinklered. Detection is required in ALL

conditions

• Record of Completion is completely revised

to 12 pages

• 10.18.2.1.2.7 Completion Drawings, to be located

at the main FACU or location identified at FACU,

and storage cabinet must be labeled.



Chapters 10 New Fundamentals (cont.)

• 10.5.6.3.1(1)Added a requirement for battery

calculations to include a 20% safety margin

• 10.4 Revised the section on qualifications (as per

instructions from the TCC)

• Brought over a number of the requirements from

Article 300 and 760 to Chapter 10 as extract material

• 10.6.1 Signal Priority, ECS signals when evaluated

via risk analysis in Chapter 24 allows MNS to

override fire




• Fundamentals









• Household


Course Outline







Chapter 17 Initiating Devices

• 17.4.6 Initiating devices shall be installed in all areas,

compartments, or locations where required by other

NFPA codes and standards or as required by other

governing laws, codes, or standards

• This replaces AHJ, and has been added through the

body of NFPA 72®.



Chapter 17 Initiating Devices (cont.)

• Changes have been made to the criteria in 17.7.1.11

regarding protection during construction into 3

separate paragraphs as follows:

"Protection during construction

• Where detectors are installed for signal initiation

during construction, they shall be cleaned and

verified to be operating in accordance with the

listed sensitivity or replaced, prior to the final

commissioning of the system. (17.7.1.11.1)

• Where detectors are installed but not operational during construction,

they shall be protected from construction debris, dust, dirt and damage

in accordance with the manufacturer's recommendations. (17.7.1.11.2)

• Where detection is not required during construction they shall not be

installed until after all other construction trades have completed

clean-up.“ (17.7.1.11.3)




• The TC adopted new language for section

17.7.3.2.3.1 that was the object of the TIA on the last

edition [2007]. The new language:

• 17.7.3.2.3.1. "In the absence of specific

performance-based design criteria, smoke

detectors shall be located using a nominal

30 foot spacing."

• A. 17.7.3.2.3.1. "For the purposes of this section a

"nominal 30 foot spacing" shall be deemed to be

30 feet +/- 5% (+/- 1.5 feet)."

• This language seemed to address the problem

that "shall be permitted to be 30 feet" does not

preclude any other distance yet instructs the AHJ

to allow some latitude in the enforcement.




17.7.3.2 Spot-Type Smoke Detectors

• 17.7.3.2.1 Spot-type smoke detectors

shall be located on the ceiling or, if on a

sidewall, between the ceiling and 12 in.

(300 mm) down from the ceiling to the

top of the detector.

• The 4 inch restriction has been removed



72, 2007 72, 2010

Spacing of Smoke Sensors




Siemens Acutec™ 35 Gas Detection System


17.10 Gas Detection

• 17.10.1 General. The purpose and scope

of Section 17.10 shall be to provide

requirements for the selection, installation,

and operation of gas detectors.




• Fundamentals








• Inspection and Testing

• Household


Course Outline







72, 2010 Edition Chapter 23 –

Protected Premises

Key changes:

• All voice communications materials are moved out of chapter 23 and into the

ECS Chapter 24

• Wiring tables have been moved to the annex and replaced with a new system

for specifying wiring redundancy

• Wiring requirements in Chapter 12

• Fire Safety Functions were also

moved to chapter 21

• Generalizes material in chapter 24

and allows for both fire alarm and

mass notification correlation

• All wiring requirements now in

Chapter 12 "Circuits & Pathways"



72, 2010 Edition Chapter 23 –

Protected Premises

• 23.9 In-Building Fire Emergency Voice/Alarm

Communications

• 23.9.1 In-Building fire emergency voice/alarm

communications shall meet the requirements of

Chapter 24

• 23.9.2 All live voice communications systems shall

meet the requirements of Chapter 24




• Fundamentals









• Household


Course Outline







72, 2010 Chapter 12 –

Pathway Interconnections

• 12.1 Application

• 12.1.1 Pathways (interconnections)

shall be designated based upon the

performance characteristics defined

in this chapter

• 12.2 Purpose

• 12.2.1 This chapter describes the

performance and survivability

characteristics for defined class

designations of signaling paths (interconnections)

• 12.2.2 A path's (interconnection's) class

designation is dependant on the path's

(interconnection's) capability to continue

to operate during specified fault conditions



EOL

72, 2010 Chapter 12 –


• 12.3 Pathway Class Designations

• Pathways shall be designated as Class A, B, C, D, E, or X, depending on

their performance as follows:

• Class A*. A pathway with a redundant path.

Operational capability continues past a single break. Conditions

that affect the intended operation of the path are annunciated.

• Class B. A pathway without a redundant path. Operational capability

stops at a break. Conditions that affect the intended operation of the

path are annunciated.



72, 2010 Chapter 12 –


• 12.3 Pathway Class Designations (cont.)

• Pathways shall be designated as Class A, B, C, D, E, or X, depending on

their performance as follows:

• Class C. One or more pathways where operational capability is

verified via end-to-end communication, but the integrity of individual

paths is not monitored. A loss of end-to-end communication is

annunciated.

• Class D. A pathway that has fail-safe operation, where no fault is

annunciated, but the intended operation is performed instead.

• Class E. A pathway which is not monitored for integrity.

• Class X. A pathway with a redundant path. Operational capability

continues past a single break or short-circuit. Conditions that affect the

intended operation of the path are annunciated.



72, 2010 Chapter 13 –

Pathway Interconnections Now Chapter 12

• Survivability has also been assigned "levels" in recognition that one size

does not fit all. For example:

• 12.4.1 Pathway Survivability Level 0: Requires no provisions for survivability

• Pathway survivability Level 0 shall consist of the following:

• Pathways shall comply with the requirements of NFPA 70

Articles 760, 770 or 800

• 12.4.2 Pathway Survivability Level 1

• Pathway survivability Level 1 shall consist

of the following:

• Pathways in buildings fully protected by an

automatic sprinkler system in accordance

with NFPA 13, Standard for the Installation

of Sprinkler Systems and with the

interconnecting wiring or cables installed

in metal raceways



72, 2010 Chapter 12 –


Survivability example continued



• 2-hour fire rated circuit integrity (CI) cable or,

• 2 hour fire rated cable system (electrical

circuit protective system(s) or,

• 2-hour fire rated enclosure or protected

area or,

• 2-hour performance alternatives

approved by the authority having

jurisdiction



72, 2010 Chapter 12 –


Survivability example continued



• Pathways in buildings fully protected by an automatic sprinkler system in

accordance with NFPA 13, Standard for the Installation of Sprinkler Systems

and one or more of the following:

• 2-hour fire rated circuit integrity (CI) cable

• 2-hour fire rated cable system (electrical

circuit protection)

• 2-hour rated enclosure or protected area

• 2-hour performance alternatives approved

by the authority having jurisdiction



72, 2010 Chapter 12 –


Pathway Class Designations

• A

• B

• C

• D

• E

• X

Survivability Levels

• 0

• 1

• 2

• 3




• Fundamentals









• Household


Course Outline







Notification Appliances

Key changes:

• Moved the requirements for

Distinctive Evacuation Signal

from Protected Premises

to Notification Appliances

• Added a requirement for sleeping

area audible appliances

• Added requirements for

voice intelligibility




• 18.4.5 Sleeping Area Requirements

• 18.4.5.3 Effective January 1, 2014,

where audible appliances are

provided to produce signals for

sleeping areas, they shall produce a

low frequency alarm signal that

complies with the following:

• The alarm signal shall be a square

wave or provide equivalent

awakening ability

• The wave shall have a fundamental

frequency of 520 Hz ± 10 percent




• 18.4.10 Voice Intelligibility

• Within the acoustically distinguishable

spaces (ADS) where voice

intelligibility is required, voice

communications systems shall

reproduce prerecorded, synthesized,

or live (e.g., microphone, telephone

handset, and radio) messages with

voice intelligibility



Sound Systems

need to be

designed for the

specific campus

configuration

Verify the layout

prior to design

acceptance

Insist on sound

mapping data to

ensure proper

operation


• 18.4.10 Voice Intelligibility

• 18.4.10.1 Acoustically

distinguishable spaces (ADS)

shall be determined by the system

designer during the planning and

design of all emergency

communications systems.

• 18.4.10.2 Each ADS shall

be identified as requiring or

not requiring voice intelligibility.

• 18.4.10.3 Where required by

the authority having jurisdiction,

ADS assignments

shall be submitted for

review and approval.




• Fundamentals






• Supervisory Station Alarm Systems



• Household


Course Outline







Emergency Control Functions and Interfaces

Chapter 21

All features of Chapter 6 have been

moved to new Chapter

• Emergency Elevator operations and recall

• Door Release Service

• HVAC

• Door locking

• Exit Marking Audible Notification Systems




• Fundamentals






• Supervisory Station Alarm Systems



• Household


Course Outline







72, 2010 Edition Chapter 26

• 26.6.3.1.4 Communications Integrity

Provision shall be made to monitor the integrity of the transmission technology

and its communications path. The following requirements shall apply:

• Any failure shall be annunciated at the supervising station within 5 minutes

of the failure.

• If communications cannot be established with the supervising station,

an indication of this failure to communicate shall be annunciated at the

protected premises.

• If a portion of the communications path cannot be monitored for integrity,

a redundant communications path shall be provided.

• Provision shall be made to monitor the integrity of the redundant

communications path.

• Failure of both the primary and redundant communications paths shall be

annunciated at the supervising station within not more than 24 hours of

the failure.




• Certain legacy technologies (active

multiplex, McCulloh, directly connected

non-coded and private microwave)

have been removed from the text

of the document.

• Existing systems utilizing these

technologies are acceptable, because

all these technologies also comply with

the general provisions of 26.6.3.1.



72, 2010 Edition Chapter 8 Now Chapter 26

• 26.6.3.2.1.4 Transmission Channels

• (A)* A system employing a DACT shall employ one telephone line (number).

In addition, one of the following transmission means shall be employed:

1. A second telephone line (number)

2. A cellular telephone connection

3. A one-way radio system

4. A one-way private radio alarm system

5. A private microwave radio system

6. A two-way RF multiplex system

7. A transmission means complying with 8.6.4




• Fundamentals







• Public Emergency Alarm Reporting


• Household


Course Outline








Key changes:

• 2007 Edition

• Public Fire Reporting

• 2010 Edition

• Public Emergency Alarm Reporting Systems

• Changes in scope to clearly identify

requirements already covered

by the chapter and now include

"emergency alarms" in addition to fire.

http://images.google.com/imgres?imgurl=http://plaws.net/Images/gamewell-logo.gif&imgrefurl=http://plaws.net/fire/box.html&usg=__8p1p9-ym1QXD9O7xqMb4VLSk-uc=&h=454&w=299&sz=6&hl=en&start=11&itbs=1&tbnid=c1FS7iQK1OXQUM:&tbnh=128&tbnw=84&prev=/images?q=gamewell&gbv=2&hl=en




Clarification of the way users should apply Chapter

• Declaring in 27.1.7 that when a protected premises

transmits signals to a communications center via a

public emergency alarm reporting system, the

entire alarm system becomes classified as an

auxiliary alarm system.

• Section 27.4.1.1 describes the types of

communications pathways that a public

emergency alarm reporting system may use.

• Section 27.4.1.2 grants permission to use a public

emergency alarm reporting system with emergency

communications systems covered by Chapter 24




• Fundamentals








• Inspection. Testing & Maintenance

• Household


Course Outline







Inspection, Testing, and Maintenance, Chapter 14

Key changes:

• Includes Emergency Communications Systems

• Revised requirements for the testing of

intelligible voice communications

• New allowance for automated testing

• New requirements for the testing of gas

detectors

• New requirement for the replacement of

combination smoke/carbon monoxide alarms

after ten years

• New requirements for the commissioning and

testing of in-building emergency radio

communication systems




• 14.2.4 System Documentation

• 14.2.4.1 The provided documentation shall

include the current revisions of all fire alarm

software and the revisions of software of any

systems with which the fire alarm software

interfaces.

• 14.2.4.2 The revisions of the fire alarm software,

and the revisions of the software in the systems

with which the fire alarm software interfaces,

shall be verified for compatibility in accordance

with the requirements of 23.2.2.1.1.




• 14.2.7 Automated Testing

• 14.2.7.1 Automated testing arrangements that

provide equivalent means of testing devices to

those specified in Table 14.4.2.2 at a frequency

at least equivalent to those specified in Table

14.4.5 shall be permitted to be used to comply

with the requirements of this chapter.

• 14.2.7.2 Failure of a device on an automated

test shall result in an audible and visual

trouble signal.




• 14.2.8 Performance-Based Inspection and Testing

• As an alternate means of compliance, subject to the

authority have jurisdiction, components and systems

shall be permitted to be inspected and tested under

a performance-based program.




• 14.4.4 Gas detectors shall be inspected, tested, and

maintained in accordance with the manufacturers'

published instructions.

Correlates with the addition of gas detection in Chapter 17.




• 14.4.7 Household Fire Alarm Systems

• 14.4.8.2 Replacement of Smoke Alarms in one

and two family dwellings

• 14.4.8.2 Combination smoke/carbon monoxide

alarms shall be replaced when the end-of-life

signal activates or 10 years from the date of

manufacture, whichever comes first.

The Code now recognizes that these type of alarms are being used.




• 14.4.12 In-Building Emergency

Radio Communication Systems

• This section was expanded

from the 2007 edition to cover:

• Signal level testing.

• System commissioning testing.

• Test procedures

• Measurement parameters

• Acceptance Test

• Annual Tests




• Fundamentals









• Household


Course Outline








• 29.3.8.1* Where notification for the hearing impaired is required by governing

laws, codes or standards, or where otherwise provided in sleeping rooms

occupied by people with mild to severe hearing loss, a low frequency alarm

signal shall be provided. The low frequency alarm signal output shall comply

with the following:

1. The alarm signal shall be a square wave or provide equivalent awakening

ability.

2. *The wave shall have a fundamental

frequency of 520 Hz + / - 10% .

3. The minimum sound level at the pillow

shall be 75 dBA, or 15 dB above the

ambient noise level, whichever is greater.




• Fundamentals









• Household


Course Outline







Emergency Communications Systems

Scope

• 24.2.1 The systems covered under Chapter 24

are for the protection of life by indicating the

existence of an emergency situation and

communicating information necessary to facilitate

an appropriate response and action.

• 24.2.2 This chapter 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.




Key Areas

• Intended to communicate information about

emergencies including but not limited to fire,

terrorist activities, other dangerous situations,

accidents, and natural disaster

• Requires intelligible voice messages

• Ancillary functions including the use of the system

for general paging, background music and other

non-emergency functions are permitted provided

they don't interfere with emergency performance

requirements.



Emergency Communications Systems (ECS)

Chapter 2424.1, 24.2, 24.3

One-WayECS24.4

ComboECS

Interfaces with MNS

PA Systems Used for

ECS

In-BuildingFire EVACS

24.4.1

In-BuildingMNS

24.4.2

Wide-AreaMNS

24.4.3

Distributed RecipientMNS

24.4.4

Info. Command and Control

24.6

Two-WayIn-Building ECS

24.5

Two-Way Wired Emerg Svcs ECS

24.5.1

Two-Way Radio Emerg Svcs ECS

24.5.2

Area of Refuge ECS24.5.3

ElevatorECS

24.5.4

Performance-Based Design

24.7




In-Building EVACs

One-Way ECS

Traditional Fire Voice/Alarm Evacuation System

• Permits a mass notification control unit to take

control of fire alarm notification appliances

including amplifiers, speakers, and strobes

• Survivability requirements to reference new

chapter

• Will require a tone and visible indication any time

the priority is granted to the mass notification

control unit

• "Intelligibility" is required for ALL voice messages

• Strobes used for dual purposes shall not be

marked 'FIRE', strobes to be blank or 'ALERT'



In-Building EVACs

One-Way ECS

Traditional Fire Voice/Alarm Evacuation System

• 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 shall not impair control

and operation of the notification appliances outside

the evacuation signaling zone. [See new 24.1.6]



Wide Area MNS

One-Way ECS

High powered speaker arrays (HPSA) for large

outdoor areas

• Mounted at heights to prevent hearing damage to

nearby persons

• Are not permitted to provide mass notification to

occupants inside structures or buildings



Distributed Recipient MNS

One-Way ECS

• Communication to a wide range of targeted individuals or groups

• Systems include mass dialing systems, reverse 911, email, SMS (mobile

phone text messages), and other directed communication methods



Wired Emergency Services

Two-Way ECS

• Firefighter and warden telephones



Radio Emergency Services

Two-Way ECS

Non-Interference

Radio coverage requirements

• In-Building Amplifiers

• Bi-directional amplifiers

• Critical areas (i.e., FDC, exit stairs, fire pump room, etc.) – 99% coverage

• General building areas – 90% coverage



MASS Notification in Building

History of MNS and NFPA

• June 2003 Air Force Civil Engineering Support Agency petitioned NFPA to

develop a standard for Mass Notification

• NFAC TCC was charged with the task for reviewing the request

• NFAC TCC Task Group was formed in February 2004

• First Task Group Meeting was held March 2004

• Subsequent meetings took place in May and August of 2004

• NFPA 72-2010 with Chapter 24 on ECS/MNS was approved August 2009




New Chapter 24 of NFPA 72

Chapter 24 Emergency Communications Systems

• 24.4.1.7 Priority

• 24.4.1.7.2 When the fire alarm system has been activated, and mass

notification has been given priority, an audible and visible indication shall be

provided at the building fire alarm control unit.

• 24.4.1.7.4 The fire alarm system shall not automatically override emergency

mass notification messages.




• 24.4.2.2 Risk Analysis for Mass Notification 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.

• 24.4.1.6.2 Speakers used as alarm notification appliances on fire alarm

systems shall also be permitted to be used for mass notification.

• 24.4.1.7.1* Notification appliances required to provide special suppression

pre-discharge notification shall not be overridden by other systems.




• Operation of MNS system is

based on the Emergency

Response Plan

• Intelligibility of voice messages

are required to meet the

requirements of chapter 18

(notification)

• Visual notification to be

completed through strobes,

textual, graphic or video displays

• Re-labeling of existing strobes

labeled fire is required to be

completed in a manufacturer's

approved method



NFPA 72-2010

Thank You!

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