What term is used in NFPA 72 to describe temporary loss of system function requiring notification?

What term is used in NFPA 72 to describe temporary loss of system function requiring notification?

• A. Impairments
• B. Faults
• C. Troubles
• D. Disruptions

Answer: (A)

In NFPA 72, impairment is used to describe a temporary loss of a system function that requires notification to the appropriate authorities. This term covers situations where a device or subsystem stops operating for a short period and must be reported and documented so the situation can be managed and restored. It’s distinct from a fault, which implies a more persistent hardware failure; from a trouble, which signals a monitored condition needing service but may not stop system operation; and from terms that aren’t used in this context. When a function is temporarily unavailable, classifying it as an impairment ensures proper notification and tracking until normal operation is restored.

In NFPA 72, impairment is used to describe a temporary loss of a system function that requires notification to the appropriate authorities. This term covers situations where a device or subsystem stops operating for a short period and must be reported and documented so the situation can be managed and restored. It’s distinct from a fault, which implies a more persistent hardware failure; from a trouble, which signals a monitored condition needing service but may not stop system operation; and from terms that aren’t used in this context. When a function is temporarily unavailable, classifying it as an impairment ensures proper notification and tracking until normal operation is restored.