If a fixed automatic fire-extinguishing system fails due to power failure, what must happen to the fuel and heat sources?

When a fixed automatic fire-extinguishing system fails, ensuring the safety of the environment and mitigating potential fire hazards is paramount. For this reason, if a fire-extinguishing system is compromised due to a power failure, the associated fuel and heat sources must shut down automatically. This automatic shutdown is crucial to prevent further escalation of a fire situation, as it eliminates the potential for conditions that could sustain or increase a fire hazard.

The principle behind this requirement aims to enhance safety by ensuring that, in the event of an automatic system failure, other mechanisms are in place to help prevent a fire from igniting or spreading. Such safety measures dramatically reduce risk, especially in environments where flammable materials and heat sources are present.

Other options involve conditions that do not align with best practices for safety. Allowing fuel and heat sources to continue operating or needing manual intervention does not provide an adequate level of security and could lead to dangerous scenarios if a fire were to occur during a malfunctioning state of the extinguishing system.