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NFPA 72:

NFPA 72:. Chapter 14: Inspection and Maintenance. Inspection Frequencies. NFPA 72 establishes the frequency of inspection and testing Initial installation Monthly: Supervising station receivers ( ie : DACT test signals), batteries Quarterly: Supervisory signal equipment Semi-annually

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NFPA 72:

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  1. NFPA 72: Chapter 14: Inspection and Maintenance

  2. Inspection Frequencies • NFPA 72 establishes the frequency of inspection and testing • Initial installation • Monthly: Supervising station receivers (ie: DACT test signals), batteries • Quarterly: Supervisory signal equipment • Semi-annually • Annually: Initiating devices, supervisory station equipment

  3. Test Methods • NFPA has established methods for testing components of a fire alarm system • Lights • Fuses • Power supplies • Batteries • Initiating devices • Notification devices • Transmission equipment

  4. 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

  5. Alarm Type Transmission • A fire alarm system can have one of a number of different types of transmission systems

  6. McCulloh Transmitter • This method uses a "party line" that connects several businesses to a monitoring facility. When an alarm signal is received via the dedicated party line, the monitoring facility checks a code to identify which business was compromised.

  7. Multiplex • This system also operates like a "party line," using one dedicated telephone line to connect several businesses to a monitoring facility.

  8. Digital • The alarm signal is transmitted over the business's regular telephone lines (rather than over a dedicated line), which transmit them to the monitoring facility. The system can be compromised by cutting the line. • Digital alarm communicator transmitter (DACT) • Digital alarm radio transmitter (DART) • Digital alarm communicator receiver (DACR) • Digital alarm radio receiver (DARR)

  9. Reverse Polarity • A Reverse Polarity Signaling Module communicates system conditions (alarm, trouble, and supervisory) from a compatible control panel to a monitoring station by reversing or interrupting the polarity of a steady signal it sends over leased telephone company lines.

  10. Radio Frequency • This system transmits status signals via radio wave to a receiving antenna, which relays the signal to the monitoring facility. In a two-way radio system, the monitoring facility can receive the alarm system's status signal as well as send a signal to ask for the status or confirm an alarm condition, thus, providing line security.

  11. Initiating Devices • Manual Fire Alarm Boxes • Ionization Smoke Detectors • Photoelectric Smoke Detectors • Duct Detectors • Heat Detectors • Waterflow Switches • Supervisory Switches

  12. Alarm Notification Appliances • Bells • Horns • Chimes • Strobes • Speakers

  13. Supervisory Signal-Initiating Devices • Building Temp • Site Water Temp • Site Water Level • Fire Pump Power • Fire Pump Running • Fire Pump Auto Position • Fire Pump or Pump Controller Trouble • Fire Pump Running • Generator in Auto Position • Generator or Controller Trouble • Switch Transfer • Generator Engine Running

  14. SIGNALING LINE CIRCUITS • Quantity and style of signaling line circuits connected to system

  15. SYSTEM POWER SUPPLIES • Primary • Voltage • Amps • Over current Protection • Secondary • Second line • Generators • Battery

  16. Emergency or Standby System • Used as a backup to primary power supply, instead of using a secondary power supply • Examples: • Battery

  17. SUPERVISING STATION MONITORING • Alarm Signal • Alarm Restoration • Trouble Signal • Trouble Signal Restoration • Supervisory Signal • Supervisory Restoration

  18. Maintenance • Fire alarm system equipment shall be maintained in accordance with the manufacturer’s instructions.

  19. Permanent Records • A 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.

  20. Maintenance, Inspection, and Testing Records • Records shall be retained until the next test and for 1 year thereafter

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