What are flame effects in the context of NFPA 160?

Flame effects, as defined in the context of NFPA 160, are specifically devices that create a visible flame for entertainment purposes. This includes any device or method used in theatrical performances and events to produce flame effects that are visible to the audience, enhancing the overall spectacle and ambiance.

Such devices must be carefully designed and used in accordance with specific safety standards to ensure they do not pose a risk to performers, crew, or the audience. The standards outlined in NFPA 160 provide guidelines to ensure that these flame effects are executed safely and effectively within a controlled environment, emphasizing the importance of fire safety in theatrical and entertainment settings.

The other options do not accurately represent the definition of flame effects as they relate to NFPA 160. Alterations in lighting or fire extinguishing devices do not encompass the essence of flame effects, which specifically involve visible flames created for entertainment rather than mere visual effects or safety equipment. Additionally, restricted areas for audience safety are related to safety protocols, not the process or mechanism of creating flame effects.