Fire basics 1-3-functions_to_docs_08

NOTICE!!! All three of the FIRE

ALARM BASICS courses, are based on NFPA 70 and NFPA 72 each of which you should have at hand while taking these courses.

Fire Alarm System Fire Alarm System FundamentalsFundamentals

All fire detection devices All fire detection devices that receive their power that receive their power from the initiating device from the initiating device circuit or signaling line circuit or signaling line circuit of a fire alarm circuit of a fire alarm control unit shall be listed control unit shall be listed for use with the control for use with the control unit.unit.

10.3.3 Compatibility


21.2.7 Emergency control functions shall not 21.2.7 Emergency control functions shall not interfere with other operations of the fire alarm interfere with other operations of the fire alarm system.system.

23.8.1.1 Actuation Time. Actuation of alarm 23.8.1.1 Actuation Time. Actuation of alarm notification appliances or emergency voice notification appliances or emergency voice communications, fire safety functions, and communications, fire safety functions, and annunciation at the protected premises shall annunciation at the protected premises shall occur within 10 seconds after the activation of occur within 10 seconds after the activation of an initiating device.an initiating device.

System Functions


SUPERVISORY SIGNALSSUPERVISORY SIGNALS10.11.1 A coded supervisory signal shall be permitted to consist of two 10.11.1 A coded supervisory signal shall be permitted to consist of two

rounds of the number transmitted to indicate a supervisory off-normal rounds of the number transmitted to indicate a supervisory off-normal conditioncondition

10.11.2 A coded supervisory signal shall be permitted to consist one 10.11.2 A coded supervisory signal shall be permitted to consist one round of the number transmitted to indicate the restoration of the round of the number transmitted to indicate the restoration of the supervisory condition to normal.supervisory condition to normal.

10.11.3 Self-Restoring Supervisory Signal Indication. Visible and audible indication of self-restoring supervisory signals and visible indication of their restoration to normal shall be automatically indicated within 90 seconds at the following locations:

• (1) Fire alarm control unit for local fire alarm systems• (2) Building fire command center for in-building fire emergency

voice/alarm communications systems• (3) Supervising station location for systems installed in compliance

with Chapter 26

System Functions


10.11.2 Combined Coded Alarm and Supervisory 10.11.2 Combined Coded Alarm and Supervisory Signal Circuits. Where both coded sprinkler Signal Circuits. Where both coded sprinkler supervisory signals and coded fire or water flow supervisory signals and coded fire or water flow alarm signals are transmitted over the same alarm signals are transmitted over the same signaling line circuit, provision shall be made signaling line circuit, provision shall be made either to obtain alarm signal precedence or either to obtain alarm signal precedence or sufficient repetition of the alarm signal to prevent sufficient repetition of the alarm signal to prevent the loss of an alarm signal.the loss of an alarm signal.

10.11.3 Supervisory signals indicated in 90 sec.10.11.3 Supervisory signals indicated in 90 sec.10.7.1 DISTINCTIVE SIGNALS10.7.1 DISTINCTIVE SIGNALS

Alarm, supervisory, & trouble signals Alarm, supervisory, & trouble signals distinctivedistinctive

4.4.3 System Functions


10.13 FIRE SAFETY FUNCTION SAFETY 10.13 FIRE SAFETY FUNCTION SAFETY STATUS INDICATORS STATUS INDICATORS

10.13.1 Safety function overrides shall be 10.13.1 Safety function overrides shall be indicatedindicated

10.13.2 Status indicators to indicate actual 10.13.2 Status indicators to indicate actual statusstatus

System Functions


10.12.1 TROUBLE SIGNALS10.12.1 TROUBLE SIGNALSTrouble signal and restoration indicated within Trouble signal and restoration indicated within

200 seconds200 seconds10.7.5 Trouble signal indication at FACP, 10.7.5 Trouble signal indication at FACP,

command center, and central stationcommand center, and central station10.12.7 Trouble signals and restoration 10.12.7 Trouble signals and restoration

indicated at proprietary station IAW Ch. 8indicated at proprietary station IAW Ch. 8

System Functions


10.12.8 AUDIBLE TROUBLE SIGNAL SILENCING MEANS10.12.8 AUDIBLE TROUBLE SIGNAL SILENCING MEANS• 10.12.8.1 A means for silencing the trouble notification appliance(s)

shall be permitted only if it complies with the following:(1) The means shall be key-operated or located within a locked

cabinet, or arranged to provide equivalent protection against unauthorized use.

(2) The means shall transfer the trouble indication to a suitably identified lamp or other acceptable visible indicator.

(3) The visible indication specified in 10.12.8.1(2) shall persist until the trouble condition has been corrected.(4) The audible trouble signal shall sound when the silencing means is in its silence position and no trouble exists.

System Functions


10.12.8.2 If an audible trouble notification appliance is also used to indicate a supervisory condition, as permitted by 10.7.3, a trouble signal silencing switch shall not prevent subsequent sounding of supervisory signals.

10.12.8.3* An audible trouble signal that has been silenced at the protected premises shall comply with the following:(1) The audible trouble signal shall automatically re-sound every 24 hours or less until fault conditions are restored to normal.(2) The audible trouble signal shall sound until it is manually silenced or acknowledged.(3) The re-sounded trouble signal shall also be automatically retransmitted to any supervising station to which the original trouble signal was transmitted.


10.12.8.4* If permitted by the authority having jurisdiction, the requirement for a 24-hour resound of an audible trouble signal shall be permitted to occur only at a supervising station that meets the requirements of Chapter 26 and not at the protected premises.

10.7.1 Priority alarms, fire alarms, supervisory signals, and trouble signals shall be distinctively and descriptively annunciated.

A.10.10 It is the intent that both visual and audible appliances are shut off when the signal silence feature is activated on the fire alarm control unit. Per the ADA, it is important not to provide conflicting signals for the hearing impaired.

System Functions


10.11.5 Supervisory Signal Silencing.10.11.5.1 A means for silencing a supervisory signal notification appliance(s) shall be permitted only if it complies with 10.11.5.2 through 10.11.5.5.10.11.5.2 The means shall be key-operated or located within a locked cabinet, or arranged to provide equivalent protection against unauthorized use.10.11.5.3 The means shall transfer the supervisory indication to a lamp or other visible indicator, and subsequent supervisory signals in other zones shall cause the supervisory notification appliance(s) to re-sound.10.11.5.4 A means that is left in the “silence” position where there is no supervisory off normal signal shall operate a visible signal silence indicator.10.11.5.5 A means that is left in the “silence” position shall cause the trouble signal to sound until the silencing means is restored to normal position.


23.8.1.2* Presignal Feature.23.8.1.2.1 Systems that have a presignal feature complying with 23.8.1.2 shall be permitted if approved by the authority having jurisdiction.23.8.1.2.2 A presignal feature shall meet the following conditions:(1) The initial fire alarm signals sound only in department offices, control rooms, fire brigade stations, or other constantly attended central locations.(2) Where there is a connection to a remote location, the transmission of the fire alarm signal to the supervising station activates upon the initial alarm signal.(3) Subsequent system operation is by either of the following means:(a) Human action that activates the general fire alarm(b) A feature that allows the control equipment to delay the general alarm by more than 1 minute after the start of the alarm processing


23.8.1.3 POSITIVE ALARM SEQUENCE23.8.1.3 POSITIVE ALARM SEQUENCE23.8.1.3.1 PAS allowed if approved by AHJ23.8.1.3.1 PAS allowed if approved by AHJ23.8.1.3.1.1(1) 15 seconds to intercept signal23.8.1.3.1.1(1) 15 seconds to intercept signal23.8.1.3.1.1(3) 180 sec alarm invest. phase23.8.1.3.1.1(3) 180 sec alarm invest. phase23.8.1.3.1.1(5) If a second automatic detector 23.8.1.3.1.1(5) If a second automatic detector

goes into alarm during invest goes into alarm during invest activation activation

System Functions


23.8.1.3.1.1(6) If any other initiating device 23.8.1.3.1.1(6) If any other initiating device goes into alarm goes into alarm immediate activation immediate activation

23.8.1.3.1.2 PAS bypass provision23.8.1.3.1.2 PAS bypass provision

System Functions


10.14 PERFORMANCE AND LIMITATIONS10.14 PERFORMANCE AND LIMITATIONS10.14.1 VOLTAGE, TEMPERATURE, AND 10.14.1 VOLTAGE, TEMPERATURE, AND

HUMIDITY VARIATION HUMIDITY VARIATION85% - 110% of nameplate voltage85% - 110% of nameplate voltage3232°°F – 120F – 120°°F F Relative humidity of 85% at 86Relative humidity of 85% at 86°°FF

10.14 Performance and Limitations


10.14.2 INSTALLATION AND DESIGN10.14.2 INSTALLATION AND DESIGN10.14.2.1 Specifications and standards IAW 10.14.2.1 Specifications and standards IAW

Authority Having jurisdictionAuthority Having jurisdiction10.14.2.2 Devices located and installed to 10.14.2.2 Devices located and installed to

minimize accidental operationminimize accidental operation



10.14.2.3 All apparatus to be restored or 10.14.2.3 All apparatus to be restored or rewound as promptly as possiblerewound as promptly as possible

10.14.2.4 Install devices in locations where 10.14.2.4 Install devices in locations where limits do not exceed 4.4.4.1limits do not exceed 4.4.4.1

10.14.3 Follow NFPA 70 - 800 to reduce EMI 10.14.3 Follow NFPA 70 - 800 to reduce EMI damagedamage



12.2.4.3 WIRING12.2.4.3 WIRING Installation wiring IAW NFPA 70 Articles 760, Installation wiring IAW NFPA 70 Articles 760,

770, 800770, 80012.2.4.4 GROUNDING12.2.4.4 GROUNDING

All systems shall test free of groundsAll systems shall test free of grounds10.14.3.1 INITIATING DEVICES10.14.3.1 INITIATING DEVICES

Selected and installed to minimize nuisance Selected and installed to minimize nuisance alarmsalarms



10.14.3.1 Install to minimize nuisance alarms10.14.3.1 Install to minimize nuisance alarms10.14.3.2 Fire alarm boxes to comply w/ 17.14 10.14.3.2 Fire alarm boxes to comply w/ 17.14

and 23.8.5.2.1and 23.8.5.2.1



10.15 PROTECTION OF FIRE ALARM 10.15 PROTECTION OF FIRE ALARM CONTROL UNIT(S)CONTROL UNIT(S)

Automatic smoke detector to be installed Automatic smoke detector to be installed to protect FACP(s) unless in continuously to protect FACP(s) unless in continuously occupied locationoccupied location

10.15 Protections of Fire Alarm Control Unit(s)


10.16 VISIBLE ZONE ALARM INDICATION10.16 VISIBLE ZONE ALARM INDICATION If required, annunciate devices by subdivision If required, annunciate devices by subdivision

10.16.2 Supervisory & Trouble Annunciation10.16.2 Supervisory & Trouble Annunciation10.16.3 Annunciator Access & Location10.16.3 Annunciator Access & Location10.16.4 Alarm Annunciation Display10.16.4 Alarm Annunciation Display

Annunciation by zone for two or more zonesAnnunciation by zone for two or more zones

10.16 Zoning and Annunciation


10.16.4 Visual annunciation to display all 10.16.4 Visual annunciation to display all zones in alarmzones in alarm

10.16.5 Visible and audible alarm annunciation 10.16.5 Visible and audible alarm annunciation provided at command centerprovided at command center

10.16.6.1 Each floor of the building is 10.16.6.1 Each floor of the building is considered a separate zoneconsidered a separate zone

10.16.6.3 Multiple buildings to be indicated 10.16.6.3 Multiple buildings to be indicated separatelyseparately

10.16 Zoning and Annunciation


10.17.1/2 MONITORING INTEGRITY OF 10.17.1/2 MONITORING INTEGRITY OF INSTALLATION CONDUCTORS AND INSTALLATION CONDUCTORS AND OTHER SIGNALING CHANNELSOTHER SIGNALING CHANNELS

Integrity of all pathways monitored to Integrity of all pathways monitored to indicate a single open or single ground indicate a single open or single ground fault and restoration within 200 secondsfault and restoration within 200 seconds

10.17 Monitoring Integrity of Conductors


10.17.1.15 No alarms from single break or 10.17.1.15 No alarms from single break or ground faultground fault

10.17.1.16 Unacknowledged alarm signals 10.17.1.16 Unacknowledged alarm signals unaffected by unacknowledged faultsunaffected by unacknowledged faults

10.17.1.17 Fault on one NAC not to affect 10.17.1.17 Fault on one NAC not to affect other NACs other NACs

10.17.1.18 Wire-to-wire short on NAC results 10.17.1.18 Wire-to-wire short on NAC results in trouble signalin trouble signal



10.17.2 MONITORING INTEGRITY OF 10.17.2 MONITORING INTEGRITY OF EMERGENCY VOICE/ALARM EMERGENCY VOICE/ALARM COMMUNICAITONS SYSTEMSCOMMUNICAITONS SYSTEMS

10.17.2.1 MONITORING INTEGRITY OF 10.17.2.1 MONITORING INTEGRITY OF SPEAKER AMPLIFIER AND TONE-SPEAKER AMPLIFIER AND TONE- GENERATING EQUIPMENTGENERATING EQUIPMENTFailure of tone-generating equipment or audio Failure of tone-generating equipment or audio

amplifiers shall result in a trouble signalamplifiers shall result in a trouble signal



10.17.2.2 2-way phone circuits monitored 10.17.2.2 2-way phone circuits monitored for short-circuit faultsfor short-circuit faults

10.17.3 MONITORING INTEGRITY OF 10.17.3 MONITORING INTEGRITY OF POWER POWER SUPPLIESSUPPLIES

Power supplies monitored at their point of Power supplies monitored at their point of connection. Failure will result in a trouble connection. Failure will result in a trouble signal IAW 10.12signal IAW 10.12



10.17.3.2 DACT power supplies IAW 10.5 & 10.710.17.3.2 DACT power supplies IAW 10.5 & 10.710.17.3.3* Supervising station fire alarm systems 10.17.3.3* Supervising station fire alarm systems

shall be arranged to delay transmission of primary shall be arranged to delay transmission of primary power failure signals for a period ranging from 60 power failure signals for a period ranging from 60 to 180 minutes.to 180 minutes.

Where delay of the signal is prohibited by the Where delay of the signal is prohibited by the authority having jurisdiction, delay of the authority having jurisdiction, delay of the transmission shall not be required.transmission shall not be required.



1.1 Scope1.1 Scope 1.2 Purpose1.2 Purpose 1.3 General1.3 General 3.1,2,3 Definitions3.1,2,3 Definitions 4.1 Fundamentals4.1 Fundamentals

4.5 Documentation4.5 Documentation

NFPA 72-2002 ChapterChapter 1 thru 4


10.18.1 AHJ to be notified prior to 10.18.1 AHJ to be notified prior to installation or alteration of equipment or installation or alteration of equipment or wiringwiring

10.18.2 Contractor statement required at 10.18.2 Contractor statement required at completion of installation or modificationcompletion of installation or modification

10.18.4 Statement allowed to be Figure 10.18.4 Statement allowed to be Figure 10.18.2.1.1 Record of Completion & 10.18.2.1.1 Record of Completion & statement noted in 10.18.1.3.statement noted in 10.18.1.3.

10.18.1 Approval and Acceptance


10.18.2.1 A Record of Completion shall be 10.18.2.1 A Record of Completion shall be prepared for each systemprepared for each system

Familiarize yourself with theFamiliarize yourself with the>>>>>>Record of Completion<<<<<<

10.18.2.2 Every system shall include an 10.18.2.2 Every system shall include an owner’s manual and record drawingowner’s manual and record drawing

10.18.2 Completion Documents


• Complete unalterable Complete unalterable record of tests and record of tests and operations to be kept operations to be kept until the next test and until the next test and 1 year thereafter1 year thereafter

10.18.3 Records

ReviewReview Part 1 Fire Alarm System FundamentalsPart 1 Fire Alarm System Fundamentals

Part 2 Initiating DevicesPart 2 Initiating DevicesPart 3 Protected Premises Fire Alarm SystemsPart 3 Protected Premises Fire Alarm SystemsPart 4 Notification AppliancesPart 4 Notification AppliancesPart 5 Supervising Station Fire Alarm SystemsPart 5 Supervising Station Fire Alarm SystemsPart 6 Public Fire Alarm Reporting SystemsPart 6 Public Fire Alarm Reporting SystemsPart 7 Inspection, Testing, & Maintenance Part 7 Inspection, Testing, & Maintenance Part 8 Fire Warning Equipment for Dwelling Part 8 Fire Warning Equipment for Dwelling

UnitsUnits

ReviewReview Part 1 Fire Alarm System FundamentalsPart 1 Fire Alarm System Fundamentals Part 2 Initiating DevicesPart 2 Initiating Devices Part 3 Protected Premises Fire Alarm SystemsPart 3 Protected Premises Fire Alarm Systems Part 4 Notification AppliancesPart 4 Notification Appliances Part 5 Supervising Station Fire Alarm SystemsPart 5 Supervising Station Fire Alarm Systems Part 6 Public Fire Alarm Reporting SystemsPart 6 Public Fire Alarm Reporting Systems Part 7 Inspection, Testing, & Maintenance Part 7 Inspection, Testing, & Maintenance Part 8 Fire Warning Equipment for Dwelling Part 8 Fire Warning Equipment for Dwelling

UnitsUnits

Fire basics 1-3-functions_to_docs_08

Engineering

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