Hierarchy classification:

1. top of the aat hierarchies
2. Objects Facet
3. Object Groupings and Systems (hierarchy name)
4. systems (equipment)
5. [systems by function]
6. protection systems

Narrower term/s

• fire alarm systems[+]
  • auxiliary fire alarm systems
  • local fire alarm systems
  • proprietary fire alarm systems
  • remote-station fire alarm systems
  • fire alarm system components [NP] [+]
    • fire detectors [+]
      • flame detectors
      • temperature detectors
    • smoke detectors [+]
      • ionization detectors
      • photoelectric smoke detectors
    • manual stations
• fire extinguishing systems[+]
  • fire extinguishing system components [NP] [+]
    • fire sprinklers

Anotations

Scope note:

Protection systems that provide safeguards to construction and exit facilities through the use of fire alarm, fire detecting, and fire extinguishing equipment to reduce the risk and spread of fire.