Job type Risk factors Safety precautions     First, the risk of hot work   1 , flammable and explosive hazardous substances 1 ) Clean, replace, analyze and confirm the materials in the fire-fighting equipment and pipelines. 2 ) The tank shall be ignited to clean flammable substances. The tank shall be filled with clean water or inert gas protection. 3 ) The equipment is protected by nitrogen or steam. 4 ) Work in confined space must apply for restricted space ticket and forced ventilation. 5 ) Blasting dust in the workplace, clean up the powder completely, and the storage tank must have no accumulated powder in the empty tank. 2. There are flammable materials around the hot spot Clear the flammable materials around the fire point, and close the cable trenches, warehouses and other inflammables near the fire. The fire in the cable trench must clear the flammable gas and liquid in the trench and cut off both ends of the trench. 3 , Mars splash Work at heights must go for work tickets. Pay attention to the direction of the Mars splashing, and use the water or the spotted mud to place the star of the fire. 4 , lack of cylinder spacing 1 ) The safety distance between cylinders should not be less than 5 meters , and the location with hot fire should not be less than 10 meters . 2 ) Gas cylinders are not allowed to expose under the hot sun. Acetylene bottles must not be laid down. 5 , electrical welding tools have defects 1 ) Electrical welding tools such as welding handles, welding caps and oxygen tubes should be inspected prior to hot work to ensure safety and reliability. 6 , no regular detection, poor ventilation 1 ) Sampling and analysis shall be carried out within 30 minutes in confined space operations such as within the gas pipeline network . Tests shall be carried out in accordance with standard operating procedures. At the same time, forced ventilation shall be conducted to prevent air accumulation and induce asphyxiation or poisoning. 7. Improper monitoring 1 ) The person who monitors the fire must be familiar with the site environment and check to confirm whether the safety measures are in place, have relevant safety knowledge and emergency knowledge, and do a good job of job check. 2 ) The person who monitors the fire at the post must take fire prevention measures at any time to eliminate the spark of the splash and stop the operation immediately if abnormalities are found. 8 , lack of emergency facilities 1 ) Prepare fire extinguishing equipment (steam pipe, fire extinguisher, sand, iron milling) in a targeted manner at the hot fire site.     Second, limited space operations 1 ã€Isolation is not reliable The materials, steam, and nitrogen lines connected to the equipment are not blocked by blank plates, and the blinding operation tickets are handled. Remove the relevant pipeline connected to it and disconnect it completely. 2 , mechanical damage 1 ) Handle the blackout procedure, cut off the power supply of the equipment, and hang up the “Prohibition of Closing†license for special personnel. 3 , failed to replace Replacement completed testing. 4 , lack of oxygen The oxygen content in the equipment is within the controllable range of 19.5-23.5% . 5 , poor ventilation 1 ) Open the equipment manhole for natural ventilation. 2 ) Take forced ventilation measures. 3 ) Wear an air respirator or a long tube mask. 6 , not regularly detected 1 ) Before the operation, the gas in the equipment must be sampled and analyzed, and after entering the equipment, it can enter the equipment. 2 ) Special personnel should be scheduled to monitor regularly. 3) Regular rotation job, test and continue the operation. 7 , shock hazard 1 ) The lighting in the equipment should be less than 36V and the operation in a damp container should be less than or equal to 12V . 2 ) Use a hand-held power tool that exceeds safe voltage.    Third, temporary electricity operation  1 , illegal operations 1 ) Workers must hold certificates, and undocumented personnel are not allowed to take posts. 2 ) Temporary use of electricity shall not use bare wires on the line. 3 ) Temporary electricity lines must not be erected on trees or on scaffolds. 4 ) The overhead height of the temporary electricity line should be higher than 2 meters in the device and not less than 5 meters across the road . 2. High short circuit in distribution board and distribution On-site distribution boards and distribution boxes must have rain protection measures. The rain and fog shall not be allowed to open in the open air and indoor work permits. 3 , to prevent damage to the wire Walking on the road to be sheathed line buried iron pipe or concrete pipe, and a nameplate and a depth direction, a depth of 0.5 meters. 4 , to prevent damage to facilities 1 ) There should be a leakage protector for temporary electricity facilities. 2 ) The power equipment, line capacity and load should meet the requirements. 5 , to prevent fire and explosion The temporary lines and electrical equipment used in blasting dust, hydraulic stations must meet the corresponding explosion-proof requirements. 6 , the operating environment changes Major changes have taken place in the working environment.         Fourth, high-altitude operations 1 , the operator is not familiar with the operating environment or does not have the relevant safety skills Operators must go through safety education, be familiar with the on-site operation environment and construction requirements, and check the contents of the “high-altitude operation permit†to confirm that the safety measures have been put in place before working. 2 , the operator did not wear anti-slip fall protection products or improper use Workers must wear safety helmets, wear non-slip shoes, and fasten their seat belts. The seat belts must meet the high standards for use. 3 , did not send guardians or did not perform custody duties The fireman at the post must be familiar with the site environment and check to confirm whether the safety measures are in place, have relevant safety knowledge and emergency knowledge, and do a good job of guard supervision. 4 , The springboard is not fixed, the scaffolding and protective fence do not meet the safety requirements The erection of scaffolds and protective fences should be stable, secure, and have a strong protection area and comply with relevant safety regulations.   5 , furnace shed, workshop color steel tile replacement In the workshops that have been in disrepair for a long time, there must be fixed bearing plate operations. 6. Climbers fall or work tools and equipment fall and hurt Tools used in high altitude operations must be loaded into the tool bag. Hands must not be held up or down during the operation, and it is not allowed to touch the machine tools and materials in the air. The rolling tools or materials should be taken to prevent falling. 7. The station under the aerial work is not in proper position and has not taken reliable isolation measures Stations under high altitude operations are strictly prohibited. When crossing with other operations, they must follow a designated route. Vertical operations are prohibited unless reliable isolation measures are taken. 8 , the distance from the electrical equipment does not meet the requirements Working at electrical equipment must comply with safety distance requirements. Insulating tools must be used for high-voltage work. 9 , poor job site lighting Work at heights should have sufficient lighting. 10 , Occupational workers suffering from hypertension, heart disease, fear of heights and other occupational contraindications Inadequate climbing is not allowed in those who suffer from occupational contraindications and poor physical health. 11 ã€Working at heights in stormy weather In case of heavy fog, heavy rain, severe winds above grade 6 and other severe weather conditions, operations should be stopped.    V. Open circuit operation 1 , the identity is not clear, poor communication of information 1 ) Before the operation, the construction unit shall set up traffic barriers and disconnection signs at the intersections and cut off roads for the passing cars and people to avoid jamming. 2. There is no appropriate safety measure during the operation, causing injury to personnel 1 ) During the open circuit operation, the construction unit shall be responsible for the site fence, warning line, and traffic warning plate at the construction site, and the red light should be hung at night. 2 ) During the long-term open circuit operation, the construction unit must have a person in charge of safety with class and be responsible for traffic guidance. 3 ) During the open circuit construction work, the construction unit shall not randomly stack construction materials and affect the operation of the vehicle. 3. After the open circuit operation is completed, the site is not completely cleaned up, obstructing traffic and causing accidents. After the circuit-breaking operation was completed, the debris on the site was thoroughly cleaned and the road was smooth, and related security lines such as cordon and fence were removed. 4 , without approval, unauthorized breaking caused an accident The circuit-breaking operation shall be handled in advance for a circuit breaker operation permit, inform the relevant unit, and coordinate the vehicle operation management.      VI. Groundwork 1 , pipeline, cable damage caused accidents 1 ) Confirm with the person in charge of the electrical unit of the local unit and implement the protective measures. 2 ) Contact the company's equipment engineering department to confirm the telecommunication cables and the protective measures are in place. 3 ) The underground water supply and drainage pipelines and the Local Equipment Division shall contact the on-site confirmation to make protective measures. 4 ) Light excavation shall be carried out when underground construction has concealed facilities. It is forbidden to use tools such as grabs. 2 , collapse occurred 1 ) Many people should keep a certain distance from excavation. 2 ) The mechanical work shall be used for earth-moving work. There shall be no one on the site at close range. The excavation shall be carried out from the top to the bottom. No digging of the ground shall be adopted. 3 ) Drain the groundwater in the factory if there is a shallow water layer. 4 ) Workers must not stand on the edge of the work site to prevent collapsed personnel from being buried. 3 , appear toxic Gas area operations must pass gas detection and be tested at any time to ensure the safety of construction operations. 4. Falling accident 1 ) The operating site fence, warning line, warning board and night warning light are set as required. 2 ) There is ample lighting at the job site and people are patrolling. 3 ) The operator should lay a springboard up and down.   Seventh, lifting operation 1 , no license, illegal operation The hoisting and commanding personnel must undergo professional training and carry out certification work. 2 , command confusion Sink Siphon,Kitchen Siphon,Bathroom Sink Siphon,Sink Double Bowl Siphon Kaiping Jenor Sanitary Ware Co., Ltd , https://www.jmjenorsanitary.comSink Siphon
Nine Operational Dangers and Preventive Measures
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