What must be done if the auxiliary fan stops or fails?

When an auxiliary fan stops or fails in an underground mining environment, it is crucial to prioritize safety. Disconnecting the power and stopping electrical equipment is necessary to prevent potential hazards associated with improper air circulation. An auxiliary fan is key for ensuring adequate ventilation, providing fresh air while dissipating harmful gases and dust. Continued operation of electrical equipment without proper ventilation can lead to a dangerous accumulation of harmful gases or lack of oxygen, which poses a serious risk to the health and safety of miners.

Stopping equipment also allows for an assessment of the situation to determine why the fan has failed and to implement a safe and effective resolution without further jeopardizing safety. Proper procedures must be followed when dealing with equipment failures, and taking the immediate step to disconnect power helps prevent exacerbating the situation. Responding to a fan failure in this manner is aligned with standard safety protocols in underground mining operations.