I85PREP
⌘ K
NICET ITFAS Level II study materials
NICET ITFAS Level II study resources

NICET ITFAS Level II: Inspection and Testing of Fire Alarm Systems

NICET ITFAS Level II · Work through your exam, one topic at a time.

All guide sections

Inspection and Testing of Fire Alarm Systems

Domain 1 - Inspection and Testing of Fire Alarm Systems

This domain tests whether you can plan and perform periodic inspection and testing of fire alarm systems to NFPA 72, distinguish inspection from testing, use approved test methods, and document results so the system remains compliant. Level II candidates are expected to know device-level test procedures, signal verification, battery checks, and impairment handling-not just panel operation.

Core rules

  • Inspection is visual and mechanical: check mounting, damage, obstruction, labeling, and accessibility. Testing is functional: operate the device or circuit and verify the intended response at the FACP, notification appliances, and supervising station.
  • Use NFPA 72 Table 14.4.3.2 and the edition adopted by the authority having jurisdiction for exact intervals. Common periodic work includes annual functional testing of initiating devices and control equipment and monthly battery inspection with annual load testing.
  • Test smoke detectors with a listed aerosol or manufacturer-approved test method. Heat detectors require a listed heat source. Do not use open flame, candles, or contamination-producing smoke.
  • Verify both sides of an interface: the initiating circuit changes state, and the output (door holder, elevator recall, HVAC shutdown, damper) actually operates.
  • Record device address, test method, result, and any impairment. Bypassed or disabled devices must be tracked and restored before the report is signed.

Worked example

A 24 V sealed lead-acid battery set supports 0.40 A standby for 24 h and 2.0 A alarm for 5 min. Standby = 0.40 × 24 = 9.6 Ah. Alarm = 2.0 × (5/60) = 0.17 Ah. Sum = 9.77 Ah; apply the 1.25 derating factor = 12.2 Ah. A 12 Ah battery is not acceptable; specify at least a 12.2 Ah capacity, then verify with a load test.

Traps

  • Calling a visual check a “test.”
  • Testing only the local sounder and not the supervising-station signal.
  • Accepting open-circuit battery voltage as proof of capacity.
  • Failing to test remote annunciators and interface relays.
  • Leaving a device bypassed after testing.