Which type of FDC connection can be used by both firefighters and civilians?

Class 2 Fire Department Connections (FDCs) are designed specifically for use by both firefighters and civilians. These connections typically have smaller hoses, often 1.5 inches in diameter, which are suitable for use in quick supply situations. They allow civilians, especially in non-emergency situations or when firefighters are not present, to provide valuable water supply to the fire protection system or sprinkler systems.

The design of Class 2 connections facilitates ease of use, ensuring that individuals who may not have extensive training in handling larger equipment can still effectively contribute in emergencies. While firefighters primarily use them for assisting with firefighting efforts, the intention behind their design is to empower civilians in proactive fire protection scenarios.

Other classes of FDCs focus more narrowly on either specific firefighting applications or restrict access. For instance, Class 1 connections are typically larger and meant exclusively for firefighter use, emphasizing the need for trained personnel to handle the equipment effectively.