What are secondary boundaries used for in a flooding scenario?

In a flooding scenario on a vessel, secondary boundaries play a crucial role in preventing the spread of water and maintaining the integrity of the compartments. These boundaries serve multiple purposes, primarily to check the spread of smoke and to provide a safe area for personnel.

By using secondary boundaries, the crew can effectively manage the conditions within the affected area. For instance, if the flooding is accompanied by fire or smoke, establishing these barriers helps to contain and control the smoke, preventing it from spreading to other compartments. At the same time, these boundaries create a safer environment for personnel to operate, as they can focus on damage control efforts without exposing themselves to unnecessary hazards.

Furthermore, isolating the flooding source is typically associated with the primary boundaries that are established to prevent water from spreading. While secondary boundaries support this effort, their primary function is the containment of smoke and the provision of safety for personnel. This comprehensive understanding emphasizes the importance of secondary boundaries in ensuring both fire and flooding control measures are effective during emergency situations.