What is FR Class 2 clothing designed to do during a flash event?

FR Class 2 clothing is specifically designed to provide a level of protection against thermal and fire hazards, particularly during flash events, which are sudden and intense bursts of heat. The primary functionality of this clothing is to resist ignition; it is made from materials that do not easily catch fire and will not continue to burn once the ignition source is removed. This protective characteristic helps to minimize the risk of injury to the wearer by providing a barrier against flames and heat.

In industrial settings where exposure to potential火 hazards is present, wearing FR Class 2 clothing is essential for ensuring safety. It is critical for workers in roles where they may encounter electrical arcs, flames, or other heat-producing incidents to have this protective gear to prevent severe burns or other injuries.

The other choices do not align with the purpose of FR Class 2 clothing. These garments are not intended to catch fire easily, melt or drip under heat, or necessarily focus on being lightweight at the expense of safety. The emphasis is on providing adequate resistance to ignition and protection from heat-related hazards, making resistance to ignition the correct answer.