Impairment: - As defined in NFPA 850, NFPA 25, and NFPA 72, a condition where a fire protection system or portion thereof is out of service, and the condition can result in the fire protection system not functioning during a fire event. The type of fire protection impairment can be identified as one of the following:
- Planned Impairment: - A condition where a fire protection system or portion thereof is out of service due to work that has been planned in advance, such as modifications to the water supply or sprinkler system piping.
- Emergency Impairment: - A condition where a fire protection system or portion thereof is out of service due to an unexpected occurrence, such as a ruptured pipe or an operated sprinkler.
- Unidentified Impairment: - A condition where a fire protection system or portion thereof is out of service without being tracked, such as a system shut down for repairs and inadvertently left isolated, a system shut down without proper notification, or a system shut down maliciously.