Where can one find impairment procedures for situations lasting longer than 10 hours?

Impairment procedures for fire protection systems, specifically detailing how to manage impairments that last longer than 10 hours, are found in NFPA 25, particularly in section 15.5. This section outlines the necessary steps and precautions to take when a water-based fire protection system is impaired for extended periods, emphasizing the importance of maintaining safety measures and communicating properly with stakeholders. This is crucial to ensure that fire safety is not compromised during such periods of impairment.

The other referenced standards serve different purposes. NFPA 13 focuses on the design and installation of sprinkler systems, NFPA 72 covers the installation, maintenance, and testing of fire alarm systems, and NFPA 20 pertains to the installation of fire pumps. While these documents contain relevant information for their respective areas, they do not specifically address impairment procedures for durations longer than 10 hours, making NFPA 25 the correct source for such guidelines.