When is a local application system appropriate?

A local application system is designed specifically to provide targeted fire suppression for localized hazards, making it particularly effective in controlling and extinguishing surface fires. This system can deliver extinguishing agents directly to the area at risk, which allows for a more efficient and faster response to a fire event in a specific location.

Surface fires, such as those involving flammable liquids or solid materials, can escalate quickly if not addressed promptly. Local application systems can suppress these fires effectively by discharging the extinguishing agent in a focused manner, thus controlling the situation before it spreads or worsens. This targeted approach minimizes the amount of suppression agent used and can reduce collateral damage to surrounding areas.

In contrast, other options refer to different scenarios for which local application systems are not specifically suitable. For instance, enclosed hazards often require a different type of system that can encompass a larger area, such as total flooding systems. Maintaining pressure in tanks generally involves monitoring and control systems rather than direct fire suppression. Regular maintenance checks focus on system performance and safety inspections rather than fire suppression application.