Selection of other personal protective equipment for emergency rescue in confined space

1n addition to the protection of respiratory organs and the prevention of toxic and harmful gases, the personnel working in underground sewage, septic tanks, biogas digesters, abandoned wells and other confined spaces or carrying out emergency rescue should also wear protective clothing covering the whole body; To prevent drowning, life jackets must be worn; Necessary safety shoes, work clothes and gloves shall be worn to protect the body, hands and feet of operators; Safety belt and safety rope shall be worn before operation

(1) head protection

when there is a risk of falling or hitting objects in the environment, safety helmet must be worn

(2) eye protection

when dust, gas, vapor, fog, smoke or flying debris irritate eyes or face, you must wear safety glasses, anti chemical eye mask or face mask (considering the needs of both eyes and face protection)

(3) fall protection

when it is necessary to climb (more than 2m) or there is a risk of falling (such as entering the tower), the safety belt must be fastened to prevent falling< (4) hand protection hand protection is mainly to wear anti cutting, anti-corrosion, anti penetration, heat insulation, insulation protective articles, thermal insulation, anti slip gloves, etc., which are suitable for: (1) anti cutting when it may contact sharp objects or rough surfaces (2) the protective articles against chemical corrosion and chemical penetration should be selected when contacting with chemicals (3) when it may contact with high or low temperature surface, heat insulation protection should be done (4) when it is possible to contact the charged body, the insulation protection articles should be selected< (5) foot protection wear anti smashing, anti-corrosion, anti penetration, anti slip and anti flower protective shoes, which are suitable for: (1) wear anti smashing protective shoes where organisms may fall (2) chemical liquids should be prevented in the working environment that may be exposed to chemical liquids (3) pay attention to wear antiskid or insulated or fireproof shoes in specific environment (4) when it may come into contact with oily or wet surfaces, choose anti-skid protective equipment, such as anti-skid shoes< (6) selection of protective clothing in confined space (1) selection principles of protective clothing in confined space (1) assessment of site environment (types, possible concentrations, exposure time and environmental conditions of poisons) (2) select the protective clothing or materials that may be used in the field conditions (3) the candidate protective clothing was tested under field conditions (4) select the most suitable protective clothing for application or standby in this field condition (5) to observe the characteristic changes of decontamination methods and repeated utilization2. The basic requirements of protective clothing in confined space are as follows: (1) high temperature or low temperature operation should be able to keep warm (2) it should be waterproof in humid or immersion environment (3) chemical protection should be provided for possible contact with chemical liquids (4) pay attention to flame retardant, anti-static and anti radiation in special environment in the above environment, it is necessary to carry out thermal insulation, waterproof, chemical corrosion resistance, flame retardant, anti-static, radiation and other protection 3. The selection of protective clothing in confined space should be based on the classification of personal protective equipment (PPE) the protective equipment of emergency personnel with different protection levels is: the protective clothing that needs A-level protection is a set of completely closed, chemical resistant clothing, gloves and boots, as well as a set of isolated respiratory protective device. Totally enclosed gas protective clothing can be used together with gas supply device. Other protective articles required for class a protection include fully enclosed airtight chemical protective clothing, internal and external chemical resistant protective gloves, chemical resistant boots, safety helmet, etc different from Class A, class B protection includes a suit of unclosed, splash proof and chemical resistant clothing, which can provide the same protection for liquid as class A, but not sealed. The liquid protective clothing can be used together with the air supply device. Other protective equipment required for class B protection mainly include long tube air supply respiratory protective equipment, internal and external chemical resistant protective gloves, chemical resistant boots, safety helmet, etc class C protection consists of a splash proof garment with a fully covered face filter. Liquid or particle protective clothing can be used together with filter type protective mask, and other chemical resistant boots, safety helmet, etc class D protection is limited to work clothes or other work clothes, boots and gloves connected with clothes and trousers, Anti Dirt one-piece protective clothing, anti chemical protective gloves, anti chemical boots, safety helmet, etc< (7) hearing protection ear protectors can be selected according to the code for hearing protection of employees in industrial enterprises to provide appropriate communication equipment China labor insurance net

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