Which of the following is NOT a part of a fire protection system?

A fire protection system is designed specifically to detect, control, and extinguish fires in buildings, ensuring the safety of occupants and minimizing damage to property. Sprinkler systems play a critical role by automatically spraying water to suppress fires, while fire alarm systems provide early warning to occupants, allowing for timely evacuation and response. Standpipe systems are essential for providing access to water for firefighters in high-rise buildings and ensuring effective firefighting operations.

In contrast, building maintenance equipment does not serve a direct role in fire protection. While it may contribute to the overall safety and upkeep of a facility, it is not designed as a fire prevention or suppression system. Therefore, it is correctly identified as not being a part of a fire protection system.