Building Systems Operations & Maintenance Flashcards

Which NFPA standard governs the inspection, testing, and maintenance of water-based fire protection systems such as sprinklers and fire pumps?

Answer: NFPA 25

NFPA 25 covers ongoing ITM of water-based systems, while NFPA 13 covers their installation.

Which NFPA document addresses maintenance programs for electrical equipment such as switchgear, transformers, and panelboards?

Answer: NFPA 70B

NFPA 70B is the standard for electrical equipment maintenance, while 70E covers electrical safety in the workplace.

What is the main purpose of infrared thermography surveys of electrical distribution equipment?

Answer: Detect hot spots from loose connections or overloaded components

Thermography identifies abnormal heat caused by high resistance or overload before a failure occurs.

Under NFPA 110, how should a Level 1 emergency generator be exercised each month?

Answer: Run under load for at least 30 minutes

NFPA 110 requires monthly exercise under load for a minimum of 30 minutes under specified loading conditions.

Which standard sets requirements for arc flash risk assessment, PPE, and warning labels on electrical equipment?

Answer: NFPA 70E

NFPA 70E, Standard for Electrical Safety in the Workplace, governs arc flash hazard analysis and PPE.

Per NFPA 101, battery-powered emergency lighting must receive which tests?

Answer: A 30-second monthly functional test and a 90-minute annual test

The Life Safety Code requires monthly 30-second tests and an annual 1.5-hour duration test.

A Class A GFCI receptacle is designed to trip when ground-fault current reaches approximately what level?

Answer: 5 milliamperes

Class A GFCIs trip at 4 to 6 mA to protect people from electric shock.