Electrical Systems for Fire Protection Flashcards
6 cards from real NICET practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 6 Electrical Systems for Fire Protection flashcards as text
Which article of the National Electrical Code (NEC) governs fire alarm system wiring?
Answer: Article 760
NEC Article 760 covers the installation of wiring and equipment for fire alarm systems in buildings.
What type of cable is listed for use in fire alarm systems according to NEC Article 760?
Answer: FPL or FPLR
FPL (Fire Power Limited) and FPLR (Fire Power Limited Riser) cables are specifically listed for fire alarm system wiring under NEC Article 760.
What is the maximum voltage for a Power-Limited Fire Alarm (PLFA) circuit?
Answer: 150V
Power-limited fire alarm circuits operate at a maximum of 150 volts under NEC Article 760.
Under NEC Article 760, where must PLFA cables be separated from non-power-limited conductors?
Answer: Separated by a minimum 2-inch gap in open wiring or installed in separate raceways
PLFA cables must be separated from non-power-limited conductors by at least 2 inches in open wiring or run in separate raceways to prevent induction and damage.
What is required when a fire alarm circuit passes through a fire-rated wall?
Answer: A fire-rated conduit sleeve or listed firestop system must be used
Fire alarm circuit penetrations through fire-rated assemblies must be protected with listed firestop systems to maintain the fire rating of the assembly.
What does the term 'survivability' mean in the context of fire alarm circuits?
Answer: The circuit's ability to continue operating during a fire
Survivability refers to the capability of fire alarm circuits to continue functioning and transmitting signals during a fire event.