Under what conditions is welding and cutting prohibited?

Welding and cutting are prohibited in flammable atmospheres, near large quantities of ignitable materials, or in unsafe areas not authorized by management or the Fire Marshal due to the significant risks involved. These activities generate heat, sparks, and potentially harmful fumes, all of which can easily ignite flammable substances or cause explosions.

In environments where flammable gases, vapors, or dusts are present, even the smallest spark can trigger a fire. Additionally, large quantities of ignitable materials increase the potential severity of any fire or explosion that might occur during welding or cutting operations. Hence, strict regulations are in place to ensure that workers perform these operations only in safe and properly controlled environments, as designated by management or fire safety authorities.

The other conditions mentioned don’t adequately address the crucial factors related to fire safety. For instance, well-ventilated areas might still pose risks if flammable materials are present. Similarly, restrictions based solely on time of day or enclosure do not consider the actual hazard posed by surrounding materials or the specific site conditions.