Safety month period in July, the safety of production work is not sloppy. This paper share the risk analysis and safety measures of eight dangerous work with you, the security Quanqian day, a day more than the accident!
A hot work
1, risk analysis: flammable and explosive hazardous substances
Safety measures:
The fire equipment, pipe material cleaning and replacement, by the analysis of qualified.
The tank fire, remove flammable, tank filled with water or inert gas protection.
Equipment internal communication (nitrogen, water vapor) protection.
The fire tower, stone cotton soaked, shop in the adjacent two layers on the tray for isolation.
The fire in the confined space, must apply for "the confined space work permit".
2, risk analysis: Mars into other devices or flammable invasive fire equipment
Safety measures:
Cut off the pipeline equipment connected with fire equipment and blind plate partition, listing, and for "work permit" pulling and blocking blind plate.
3, risk analysis: there is flammable hot points around
Safety measures:
The removal of the hot points around flammable, fire near the wells, ditch, trench, cable trench, removing flammable with closed.
The cable trench fire, removal of flammable gas and liquid, if necessary, will ditch isolation ends.
4, risk analysis: leakage current (inductive) hazard
Safety measures:
Welding wire back to the line should be overlapping in the welding parts, and other equipment shall not be allowed to cross the sewer (well).
5, risk analysis: Mars splash
Safety measures:
The height hot for "high job card", and take measures to prevent sparks.
Pay attention to water showering sparks, Mars landing.
6, risk analysis: the distance between cylinders is insufficient or improper placement
Safety measures:
The oxygen bottle and dissolved acetylene cylinder spacing of not less than 5m, between the two and the fire location is not less than 10m.
The cylinders are not allowed under the scorching sun, dissolved acetylene cylinders ban lying.
7, risk analysis tools: electric welding and gas welding defects
Safety measures:
Hot work before, should check the electrical, welding tools, to ensure the safe and reliable use, not sick.
8, risk analysis: the process of operation, the leakage of flammable materials
Safety measures:
During the process, in case of material, material and run on flammable gas, should immediately stop the fire.
9, risk analysis: poor ventilation
Safety measures:
The indoor fire, should open the doors and windows, peripheral equipment should cover, seal water funnel, remove oil, not cleaning solvents useful near flammable substances.
Partial forced ventilation;
10, risk analysis: the timing of the monitoring
Safety measures:
The sampling interval and the fire shall not exceed 30min, if more than this interval or hot work interruption time more than 30min, must be re sampling and analysis.
The sampling point shall be representative, samples of special fire should be reserved to the hot end.
The welding process, interruption of fire, the scene can not leave the embers again before the hot work should carefully check whether there are changes in site conditions, such as change, not hot.
11, risk analysis: improper care
Safety measures:
The inspect fire should be familiar with the environment and check the implementation of security measures in place, with the relevant safety knowledge and emergency skills, keep in touch with the position, grasp the changes of working conditions, and stick to the scene.
The inspect fire to extinguish the sparks, abnormal immediately notify the real fire stop operation, contact the relevant personnel to take measures.
12, risk analysis: emergency facilities inadequate or improper measures
Safety measures:
The fire scene with fire extinguishing tools (such as steam pipes, water pipes, fire extinguishers, sand, iron milling etc.).
Fixed foam fire extinguishing system to carry on the pre start state.
13, risk analysis: the combination of dangerous operations, the corresponding security measures are not implemented
Safety measures:
If it is involved in the lower tank, height, the blind plate, pipe equipment maintenance operations and other dangerous operations, should be handled at the same time related work permit.
14, risk analysis: the construction conditions of major changes
Safety measures:
If the construction conditions change, should re apply for "* grade hot work permit".
Two, into the limited space operations
1, risk analysis: never reliable
Safety measures:
The material, steam and nitrogen gas pipelines connected with the equipment are used for the blind plate partition, and the work permit for the blind plate is used.
Removal of the relevant pipeline
2, risk analysis: mechanical damage
Safety measures:
Handling equipment outage procedures, cut off the power supply equipment, hanging against closing “ ” warning signs, hand care.
3, risk analysis: replacement is not qualified
Safety measures:
After the replacement, sampling and analysis to qualified.
4, risk analysis: lack of oxygen
Safety measures:
The oxygen content of equipment is 18 ~ 21%.
5, risk analysis: poor ventilation
Safety measures:
Open the ventilation holes for natural ventilation.
Forced draft.
Wear air breathing apparatus or long tube mask.
The air supply pipe, must be analyzed to confirm the medium in the pipeline and air ventilation, oxygen and oxygen is strictly prohibited.
The temperature in the appropriate personnel, equipment.
6, risk analysis: the timing of the monitoring
Safety measures:
Before the operation of the 30min, must be on the equipment within the gas sampling and analysis, qualified rear can enter the equipment.
Sampling points should be representative.
In the operation of the monitoring should be strengthened, the abnormal situation immediately stop operation.
7, risk analysis: electric shock hazard
Safety measures:
The lighting voltage within the equipment should be less than or equal to 36V, and the air operation in the wet container and the small vessel should be less than or equal to 12V.
Hand operated electric tools that use more than safe voltage must be provided with an electric leakage protector.
8, risk analysis: improper protection measures
Safety measures:
In a hypoxia, toxic environment, wearing an isolated gas mask;
In the inflammable and explosive environment, the use of explosion-proof low-voltage lamps and do not spark the tool, not wearing chemical fiber fabrics;
In acid and alkali corrosive environment, wear corrosion protection
Drossing acid and acid resistant gloves goggles wear boots.
9, risk analysis: poor channel
Safety measures:
Equipment import and export channels, there must be no barriers to entry and exit barriers.
10, risk analysis: improper careSafety measures:
Before entering the equipment, the guardian shall, in conjunction with the operator to check the security measures, a unified contact signal;
The guardian shall be in contact with the equipment at any time, and shall not be separated from the post;
The guardian in the personnel safety rope leash homework.
11, risk analysis: emergency facilities inadequate or improper measures
Safety measures:
Equipment equipped with air breathing apparatus, fire equipment and water and other corresponding first aid supplies;
In equipment accident rescue, rescue personnel must do their own protective equipment to enter the equipment within the implementation of the rescue.
12, risk analysis: the combination of dangerous operations, the corresponding security measures are not implemented
Safety measures:
If it involves fire, high vacuum pumping blind and other dangerous operations, should also apply for work permit.
13, risk analysis: the construction conditions of major changes
Safety measures:
If the construction conditions of major changes, should be re apply for "limited space operations permit".
14, risk analysis: foreign body within the device
Safety measures:
After the end of the operation of the equipment, carefully check the equipment inside and outside, not left tools and other items.
Three, temporary electricity operation
1, risk analysis: illegal operation
Safety measures:
Operators must hold electrical safety operation certificate.
Temporary power line overhead height in the device is not less than 2.5 meters, the road is not less than 5 meters.
All temporary power lines, not by bare.
The temporary use of the overhead line power line, are not allowed to install in a tree or on the scaffold.
2, risk analysis: cable damage
Safety measures:
Underground pipe buried and underground cable lines should be provided to “ ” and safety marks, cable burying depth greater than 0.7 meters.
3, risk analysis: distribution panel, distribution box short circuit
Safety measures:
Electrical switchboard, box should be rain site temporary measures.
4, risk analysis: to prevent damage to the facility
Safety measures:
Temporary electricity leakage protection device should be used.
Electrical equipment, line capacity, load should meet the requirements.
5, risk analysis: to prevent fire and explosion
Safety measures:
Temporary electrical equipment and wiring used shall meet the requirements for explosion protection.
6, risk analysis: the operating conditions of major changes
Safety measures:
If the operating conditions of major changes, should be re apply for "temporary electricity operation certificate".
Four, high work
1, risk analysis: operating personnel are not familiar with the operating environment or do not have the relevant safety skills
Safety measures:
Workers must be safe education, familiar with the site environment and construction safety requirements, according to the "high work permit" to check the contents of the implementation of the security measures in place, before the job.
2, the risk analysis: the operation staff did not wear anti slip anti slip supplies or the use of improper methods or supplies do not meet the appropriate safety standards
Safety measures:
Operators must wear safety helmet, fasten the safety belt, wear non slip shoes. Before the operation to be checked for compliance with the relevant safety standards, the operation should be properly used.
3, risk analysis: no guardian or failure to perform the duties of guardianship
Safety measures:
Job guardian should be familiar with the site environment and inspection and confirmation of security measures in place, with the relevant safety knowledge and emergency skills, and job to keep in touch, always grasp the conditions change, and stick to the scene.
4, risk analysis: springboard is not fixed, scaffolding, fence does not comply with the relevant safety requirements
Safety measures:
Erection of scaffolding, protective fence should comply with the relevant safety regulations.
5, risk analysis: Gordon asbestos, tile board and other light materials operations
Safety measures:
Work in lightweight materials, asbestos tile, tile board, erection and stand in fixed bearing plate work.
6, personnel in the process of risk analysis: climbing fall or falling tools, materials, parts.
Safety measures:
The tools, materials and parts used in the work of the height must be filled in the tool bag, which is not held in the hand. Not allowed to throw in the air tools, materials and other items. Easy to slide, easy to roll tools, materials piled up on the scaffolding, should take measures to prevent falling.
7, risk analysis: height below the station did not take improper or reliable isolation measures
Safety measures:
Just below the height prohibited to stand, and the other operation cross, must according to the designated routes, prohibit the vertical operation. If the operation must be carried out vertically, reliable isolation measures should be taken.
8, risk analysis: and electrical equipment (line) distance does not meet the safety requirements or not to take effective insulation measures
Safety measures:
In the electrical equipment (line) next to the height of the work should be in line with the requirements of safety distance. Insulating tools must be used in the operation of a ground (zero) potential or equal (same) electric potential to carry out the work on a high place.
9, risk analysis: poor operating site
Safety measures:
There should be enough lighting in the work place.
10, risk analysis: no communication, contact tools or poor contact
Safety measures:
More than 30 meters height should be equipped with the communication and communication tools, the designated person responsible for contact and contact related matters in the "high job card" security measures add column.
11, risk analysis: workers suffering from hypertension, heart disease, heights occupation contraindication or poor health
Safety measures:
With occupation contraindications and frail, fatigue, poor eyesight, drunken staff and other poor health, no height.
12, risk analysis: high winds and heavy rain and other harsh weather conditions to engage in high altitude operations
Safety measures:
In case of heavy rain, fog, six or more wind and other severe weather conditions should be stopped working height.
13, risk analysis: involving fire, pulling and blocking blind dangerous operation such as not to implement appropriate security measures
Safety measures:
If it involves firing, pulling and blocking blind board and other dangerous operations, should also apply for work permit.
14, risk analysis: the operating conditions of major changes
Safety measures:
If the operating conditions of major changes, should be re apply for "high work permit".