2 Spot Type Smoke Detector Placement The layout of detectors should account for various factors in predicting detector response to anticipated fires:Ceiling shape and surfaceCeiling height (reduction factors -Configuration of contents in the protected areaCombustion characteristics and probable equivalence ratio of the anticipated fires involving the fuel loads within the protected areaCompartment ventilationAmbient temperature, pressure, altitude, humidity, and atmosphere
3 Spot Type Smoke Detector Placement NFPA 72:30 foot spacing (maximum)Closest distance to a wall is 4”NFPA 72: : For smooth ceilings, all points should have a detector within a distance of .7SS= Listed spacingWhen a manufacturer, through its own testing and research program, publishes a specific spacing recommendation that is different from the 30 ft NFPA spacing, that spacing recommendation becomes an enforceable part of the NFPA Code.
4 Heat Sensing Detectors NFPA 72: 17.6ClassificationsMarkingsSpacingHeat detectors shall not exceed their listed spacing and there shall be a detector within 1/2 times the listed spacing at right angles all walls, partitions, etc.All points on the ceiling shall have a detector within .7 times the listed spacing (.7S)Ceiling Height reduction factors for certain types of detectors
5 Manual Fire Alarm Boxes NFPA 72: 17.14Mounting location on wall requirementsHeight, distance to exitMaximum travel distances
6 Alarm Notification Appliances BellsHornsChimesStrobesSpeakersNFPA 72: Chapter 18For your case study, recommend a notification system but you do not have to recommend placement of horns, strobes, etc.
7 Supervisory Signal-Initiating Devices Building TempSite Water TempSite Water LevelFire Pump PowerFire Pump RunningFire Pump Auto PositionFire Pump or Pump Controller TroubleGenerator in Auto PositionGenerator or Controller TroubleSwitch TransferGenerator Engine Running
8 SYSTEM POWER SUPPLIES Primary Supplies Secondary Power Supply Options Requirements for Voltage and AmpsOver current ProtectionSecondary Power Supply OptionsSecond lineGeneratorsBattery
9 Emergency or Standby System Used as a backup to primary power supply, instead of using a secondary power supplyExamples:Battery
10 SUPERVISING STATION MONITORING Alarm SignalAlarm RestorationTrouble SignalTrouble Signal RestorationSupervisory SignalSupervisory Restoration
11 NFPA 72: Chapter 10: Inspection and Maintenance Inspection FrequenciesNFPA 72 establishes the frequency of inspection and testingInitial installationMonthly: Supervising station receivers (ie: DACT test signals), batteriesQuarterly: Supervisory signal equipmentSemi-annuallyAnnually: Initiating devices, supervisory station equipment
12 Test MethodsNFPA has established methods for testing components of a fire alarm systemLightsFusesPower suppliesBatteriesInitiating devicesNotification devicesTransmission equipment
13 Service Personnel Conducting Tests and Inspections Service personnel shall be qualified and experienced in the inspection, testing, and maintenance of fire alarm systems.Examples of qualified personnel shall be permitted to include, but shall not be limited to, individuals with the following qualifications:(1) Factory trained and certified(2) National Institute for Certification in Engineering Technologies fire alarm certified(3) International Municipal Signal Association fire alarm certified(4) Certified by a state or local authority(5) Trained and qualified personnel employed by an organization listed by a national testing laboratory for the servicing of fire alarm systems
14 MaintenanceFire alarm system equipment shall be maintained in accordance with the manufacturer’s instructions.
15 Permanent RecordsA set of reproducible as-built installation drawings, operation and maintenance manuals, and a written sequence of operation shall be provided to the building owner or the owner’s designated representative.For software-based systems, a copy of the site- specific software shall be provided to the owner or owner’s designated representative.The owner shall be responsible for maintaining these records for the life of the system for examination by any authority having jurisdiction.Paper or electronic media shall be permitted.
16 Maintenance, Inspection, and Testing Records Records shall be retained until the next test and for 1 year thereafter