Fire alarm 2_a_initiation basics

1. Part 2
Initiating Devices &
Protected Premises Fire Alarm Systems

2. 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.

3. Agenda
 Part 1 Fire Alarm System Fundamentals
Part 2 Initiating Devices
Protected Premises Fire Alarm Systems
Part 3 Notification Appliances
Supervising Station Fire Alarm Systems
Public Fire Alarm Reporting Systems
Inspection, Testing, & Maintenance
Fire Warning Equipment for Dwelling
Units

4. Initiating Devices
17.1 Application
17.2 Purpose
17.3 Performance-Based Design
17.4 General Requirements
17.5 Requirements of Smoke & Heat
Detectors
17.6 Heat-Sensing Fire Detectors
17.7 Smoke Detecting Fire Detectors
NFPA 72 Chapter 17

5. Initiating Devices
17.8 Radiant Energy-Sensing Fire Detectors
17.9 Combo, Multi-Criteria & Multi-Sensors
17.10 Gas Detection
17.11 Other Fire Detectors
17.12 Sprinkler Waterflow Alarm-Initiating
Devices
17.13* Detection of the Operation of Other
Automatic Extinguishing Systems
NFPA 72 Chapter 17

6. Initiating Devices
17.14 Manually Actuated Alarm Initiating
Devices
17.15 Fire Extinguisher Monitoring Device
17.16 Supervisory Signal Iniating Devices
NFPA 72 Chapter 17

7. Initiating Devices
17.1.1 Covers performance, selection, use,
location of detectors
17.1.5 Material intended for use by
professionals
17.1.6 Interconnection of devices for life safety,
property protection
17.2 PURPOSE
17.1 Application

8. Initiating Devices
17.4.1 These requirements shall apply to all
initiating devices.
17.4.2 Initiating devices shall not be installed in
inaccessible areas
17.4.3 Use listed mechanical guards to protect
devices
17.4.4 Support devices independent of their circuit
17.4.5 & 6 Install in all areas required and accessible
17.4.7 CONNECTION TO FIRE ALARM SYSTEM
– Device connection via duplicate terminals or
leads
17.4 General Requirements

9. Initiating Devices
17.5.1 Detectors shall not be recessed
17.5.2 Partitions. Where partitions extend to
within 15 percent of the ceiling height, the
spaces separated by the partitions shall be
considered as separate rooms.
17.5.3.1 TOTAL (COMPLETE) COVERAGE
Where required by laws, codes, or standards,
and unless otherwise modified by
17.5.3.1.1 through 7.5.3.1.5
17.5 Requirements for Smoke & Heat Detectors

10. Initiating Devices
17.5.3.2* Partial or Selective Coverage. Where codes,
standards, or laws require the protection of selected
areas only, …
17.5.3.3.1 Non-required Coverage
17.5.3.3.2 Extra (non-required) Spot device doesn’t
invoke add’l coverage
– Shall conform with NFPA 72
17.5.3.2 Requirements for Smoke & Heat
Detectors