Can the door of the tube well be opened in the lobby ...
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The fire door of pipeline well is a door body installed at the pipeline well in the building. Generally, it is required to be a Class C fire door made of wood or steel. Pipeline well is a strong and weak well in building, and it is one of the key parts of fire safety. Strong and weak wells are also called strong and weak rooms (rooms), and their safety is directly related to the electricity, water and communication of the whole building.
Therefore, fire doors must be used in pipeline wells, and the fire resistance limit should not be less than 0.5 hours. In practice, most designs use wooden fire doors, and a few also use steel fire doors. The fire door in the pipeline shaft must be opened outward when installed, and the door frame generally has a sill. The pipeline fire lock is used, and generally there is no fire door closer.