Why are there special requirements for the walls and doors of designated hot work areas?

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When the fixed hot work area is set in an indoor area, it should be separated from other parts by a solid fire wall; doors and windows should open outward, and outdoor access roads must be unobstructed

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Clause 5.5.2 of GB 30871 stipulates that when a fixed hot work area is located in an indoor space, it shall be separated from other areas by a solid fire wall; the doors and windows should open outward, and there must be unobstructed access to the outside. At this time, it is essential to consider the designated area for open flames as a zone where flames are present on a regular basis; such an area should be under controlled management. It must not be used for other purposes, nor should it be used for storing tools or as a place for personnel to rest or work ； At the same time, emergency requirements in the event of an accident are taken into account to ensure that doors and windows open outward and outdoor roads remain unobstructed, facilitating the timely evacuation of people in emergencies. It is also stipulated that combustible materials and other debris should not be stored within the designated hot work areas; comprehensive fire safety measures must be established and implemented, with clear responsibilities assigned for fire prevention. Safety in operations within designated hot work areas is also ensured through management.

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