
Restricted space refers to areas with limited access, such as tunnels, storage tanks, sewers, and silos. Special precautions need to be taken when working in these spaces to reduce the harm to workers. Restricted space fan connection pipeline, used for circulating air and eliminating smoke; The confined space access and rescue system consists of components such as frames and lifelines, used for lifting and supporting workers; The permit and related documents include a checklist and authorization content that operators need to complete before entering the confined space; Manhole access, rescue, and fall prevention equipment can lift and lower workers and prevent them from falling into open manholes.