Operations with more accidents in limited spaces usually include inspection and maintenance of sewage pipe diameters, inspection and maintenance of thermal pipelines, inspection and , inspection and maintenance of gas pipelines, inspection and maintenance of communication cables, and cleaning of closed equipment in industrial production processes. For these types of operating environments, the content of gas detection and which instrument to choose should be combined with the actual situation, and there should be no problems of missed or wrong detection.
Typical risk factors for confined space operations shown in the following table:
