Due to the danger and complexity of confined space, accidents involving casualties of operators often occur. Based on the characteristics of frequent accidents and serious consequences in confined space, I will summarize the hazards of confined space operations for your reference and hope to attract your attention.
(1) Harmful gas hazard. Common harmful gases accumulated in confined Spaces, such as hydrogen sulfide, carbon monoxide, methane, methane and so on, are easy to cause poisoning when inhaled by the human body.
(2) the harm of hypoxia. A closed space with no circulation of air, crowded by more significant gases (such as carbon dioxide), has low oxygen content and can be asphyxiated due to lack of oxygen after the construction personnel enter.
(3) Fire and explosion hazards. When flammable gases such as methane or biogas exist in a confined space, or paint, spray paint, or use flammable and explosive solvents, and then encounter sparks generated by welding and cutting operations, fire or even explosion may occur.
(4) Harm from microbial pathogens. Waste Wells, sewage pipes (canals), septic tanks, biogas digesters, etc., in which all kinds of harmful bacteria, viruses, insects, leptospira and other microbial pathogens, through the skin into the human body pathogenic.
(5) Physical hazards. The total demand of the closed society which is too cold, too hot and wet may cause harm to the construction personnel. The slippery surface may cause the construction personnel to fall. There is a risk of drowning when cleaning large pools, water storage tanks and water distribution pipes (canals); There is a risk of collapse when digging pile holes manually.
(6) Traffic accidents. When the access point of the confined space is located on the street, the construction personnel may be hit by vehicles, and pedestrians may fall into the confined space.
The above is the introduction of the hazards of confined space operation. When entering a confined space, you must first assess the danger of the confined space. After the assessment reaches the standard, you can wear appropriate protective equipment and rescue equipment to enter the field operation. Of course, in addition to taking preventive measures, all workers and management personnel involved in the work must also have sufficient knowledge of safety and health to prevent accidents.
