What are the scopes of Level 1, 2, and 3 hot work?
1 Answers
Level 1, 2, and 3 hot work scopes are as follows: Level 1 Hot Work: Hot work operations conducted in Class A and B fire hazard zones. Class A and B fire hazard zones refer to locations where flammable and explosive materials are produced, stored, loaded, transported, or used, or where flammable gases or vapors are volatilized or emitted. Any hot work within the fire separation distance from open flames or spark-emitting locations in Class A and B production workshops, production facility areas, storage tank zones, warehouses, etc., is considered Level 1 hot work. The designated area is within a 30-meter radius. Therefore, any hot work within this 30-meter range requires a Level 1 hot work permit. Level 2 Hot Work: Hot work operations other than special-level and Level 1 hot work. This refers to hot work within the boundaries of Class C fire hazard zones in chemical plant areas, excluding Level 1 and special-level hot work zones. Any hot work within Level 2 hot work zones must obtain a Level 2 hot work permit. Level 3 Hot Work: Hot work operations with special hazards conducted in critical areas such as operational flammable and explosive production facilities and tank zones. The term 'special hazard' is not absolute. If there is an absolute hazard, the principle of production yielding to safety must be strictly followed, and hot work must not be conducted under any circumstances. Special-level hot work generally refers to operations on equipment and pipelines within facilities or workshops. Any hot work in special-level hot work zones requires a Level 3 hot work permit.
