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I. A constant warning: Deadly dangers lurking in small spaces. In the first half of 2025, 15 serious accidents occurred in confined spaces across the country, resulting in 50 deaths; two of these accidents took place in the industrial and trade sector and caused 6 deaths. In Chengdu, Sichuan, on July 8, three workers died of asphyxiation while entering a sewage well for inspections without proper ventilation or prior testing. Behind these figures lie countless broken families, as well as a severe challenge to the minimum standards for safe production. Due to their enclosed nature, confined spaces are prone to the accumulation of toxic gases such as hydrogen sulfide and carbon monoxide; when these gases reach dangerous concentrations, they can be fatal within seconds. Special operations such as hot work, work at heights, and lifting also pose hidden dangers – at a construction site in Shenzhen, the wire rope broke during tower crane lifting, causing the bucket to fall and resulting in death, which revealed serious deficiencies in equipment inspection and operating procedures. II. Risk Decoding: Uncovering the Various Causes of Accidents (I) Confined Spaces: The Three Traps of Hidden Killers 1. Toxic Gas Traps: In places such as sewage tanks and septic tanks, hydrogen sulfide is generated as a result of the fermentation of organic matter; in the accident at a food factory in Dengta City, Liaoning Province, workers entered the pickling tanks without conducting any gas tests and were immediately overcome by the toxic fumes. 2. Asphyxiation black holes: In spaces such as grain silos and storage tanks, the oxygen level drops below 19.5% due to oxygen consumption or the accumulation of inert gases, leading to acute hypoxia. Three people fainted one after another due to lack of oxygen while cleaning a sewage tank at a rural resort in Yubei District, Chongqing. 3. Explosive hell: When combustible gases mix with air to reach the explosive limit, they will ignite and explode upon contact with an open flame. Hot work at an energy station in Sanya, Hainan, ignited the insulation material, resulting in 3 people dying in the fire. (II) Special operations: Fatal flaws in high-risk scenarios 1. Welding operations: Flammable materials are not removed and fire sources are not isolated; for example, in the Sanya accident, the welder failed to remove the polyurea material, and the sparks ignited the flammable substances. 2. Falls from height: Safety belts not used in a proper manner with the harness positioned high and the safety nets being damaged; accident rates remain high in the construction industry. 3. Mechanical injuries: Lack of protective devices on equipment and failure to shut down power during maintenance. In 2024, there were 108 mechanical injury incidents in the young workers’ industry, resulting in 99 deaths. III. Scientific Prevention and Control: Establishing a Multi-layered Safety Protection Network (I) Systems First: Laying a Solid Foundation for Safety Management 1. Risk Identification and Record-keeping Enterprises must thoroughly identify confined spaces and establish dynamic records that include their location, risk level, and responsible persons. A chemical enterprise in Shandong uses 3D modeling to identify hazard sources, and laser scanning is employed before tank cleaning to determine the distribution of deposits, thereby enabling accurate risk assessment. 2. Work approval and supervision system: Strictly adhere to the rule of \"ventilate first, then test, and finally carry out work.\" Gas testing must be conducted within 30 minutes before starting work, and re-testing is required if there is a interruption of more than 30 minutes. The supervisor must be certified to carry out this task, monitor the situation throughout the process, and ensure uninterrupted communication. For example, during the water supply pipeline drill in Huangshi City, the supervisors monitored gas levels in real time and initiated rescue efforts promptly. 3. Emergency plans and drills: Develop targeted plans, equip themselves with rescue equipment such as positive-pressure respirators and tripods, and conduct drills at least once every six months. Through the drills based on the “three checks, five prohibitions, and seven-step process,” Naxi District has reduced the rate of reckless rescue attempts by 70%. (II) Technology-driven solutions: Using technology to address security challenges 1. Intelligent monitoring systems: AI-powered cameras equipped with infrared sensors and gas detectors can identify situations such as the failure to wear PPE or improper operations in real time, triggering automatic alerts in case of any abnormalities. The operating vehicle platform in Heze City uses AI to analyze driving behavior, resulting in a significant reduction in accident rates. 2. New detection equipment: Nanoscale gas sensors can identify harmful substances at the ppm level within 30 seconds, with a sensitivity 20 times higher than that of traditional devices. The distributed gas monitoring device can simultaneously detect oxygen levels and combustible gas concentrations, and activates the ventilation system immediately when these levels fall below the set thresholds. 3. Information management platform: electronic fences, online monitoring, and a closed-loop management system for addressing potential hazards. For example, a city in Sichuan has established an intelligent supervision platform for confined spaces, enabling seamless integration of risk warning and emergency response mechanisms. (III) Personnel capabilities: From \"I need to be safe\" to \"I want to be safe\" 1. A precise training system – Tianjin has provided training to 28,000 people through online live broadcasts, and by using VR to simulate 80 different accident scenarios, it has improved the emergency response capabilities of these workers by 50%. Sichuan Province has developed customized teaching materials for the development sector, while the agriculture and rural affairs departments have created illustrated guides on biogas digester safety to help people internalize this knowledge. 2. Certification and assessment: Personnel performing special tasks must hold relevant certification to work, and companies conduct regular assessments; those who fail are required to undergo retraining. Shandong requires that high-risk hot work be supervised by professionals, who must pass a specialized examination. 3. Construction of a safety culture: Posting warning signs, organizing knowledge competitions, and establishing a \"safety points\" reward system. For example, in Naxi District, a program offering rewards for reporting safety hazards was implemented, with an 80% participation rate among employees. IV. The regulatory sword: Strict constraints ensuring accountability for violations 1. Legal basis: The \"Regulations on Safety in Confined Space Operations in Industrial and Trade Enterprises\" specify 12 key requirements, including approval procedures, supervision, and training; failure to install warning signs can result in fines of up to 200,000 yuan. The newly revised Work Safety Law in 2025 stipulates that companies that fail to provide qualified PPE may be fined up to 200,000 yuan, while the individuals directly responsible for this violation shall be fined 20,000 yuan. 2. Enforcement and accountability: A \"zero-tolerance\" policy is applied to companies involved in accidents; in the case of the Sanya Energy Station accident, 3 people were held criminally liable while 7 were subject to administrative penalties. Sichuan Province implements a \"double investigation per case\" approach for enterprises involved in accidents in confined spaces, holding them accountable for their direct responsibilities while also investigating any gaps in supervision. V. Typical Cases: Profound Insights from Positive and Negative Examples (I) Negative Examples: The bloody price of illegal operations • The accident at a food factory in Dengta City, Liaoning: Lack of ventilation, no testing, and no protective measures led to 6 people being poisoned, 1 death, and 5 injuries. The company failed to provide gas detectors and respirators, and reckless attempts at rescue led to an increase in casualties. • Accident at sewage tank in Yubei District, Chongqing: 3 people died from hydrogen sulfide poisoning; the company failed to install warning signs and rescue equipment was ineffective, revealing a complete lack of safety management. (II) Successful Practices: A Model of Safe Scientific Management • Huangshi Water Supply Pipeline Drill: Simulating a scenario of hypoxia-induced unconsciousness, the rescue team completed gas testing, donned protective equipment, and rescued the victims within 5 minutes, thereby testing the effectiveness of the emergency response plan. • Enterprise rectification in Naxi District: A certain agriculture and animal husbandry company eliminated all 5 potential hazards by installing explosion-proof devices, setting up warning signs, and providing training for its employees, resulting in a 40% reduction in the accident rate. VI. Call to Action: Build a Defense Line for Safe Production “Safety is the foundation of life, and it is also the lifeline of enterprises.” ”Here, we issue an appeal to all enterprises and professionals: • Enterprises: Conduct immediate inspections of confined spaces, update testing equipment, and enhance employee training to ensure the principle of \"no harm to oneself, no harm to others, and no being harmed by others.\" • Employees: Strictly follow operating procedures, avoid risky operations, report potential hazards promptly, and act as safety \"whistleblowers\". • Society: Public participation in oversight to jointly create a society that puts safety first. **There is no end to safety, only a beginning. **Let us use technology as a shield, systems as a spear, and awareness as a blade to build an impregnable fortress of safety in confined spaces and under special operating conditions, thereby protecting the dignity and value of every life. Safety mantra: Confined spaces pose high risks; ventilation and testing are essential ； Special operations require approval, and supervision and rescue must be in place ； Technology enhances robust supervision, while training and drills improve skills ； Abide by rules and regulations, stick to the bottom line, and may safety and happiness accompany you! Our company uses technology to protect precious lives, enabling everyone to work with peace of mind and return home safely, to their families where their parents, partners, and children are waiting……