Persons working in confined spaces such as underground sewers, septic tanks, digesters, abandoned wells, or emergency rescue personnel should wear protective clothing covering the entire body in addition to respiratory protection and poisonous and harmful gases. To prevent drowning, a life jacket must be worn; the necessary safety shoes, work clothes, and gloves should be worn to protect the safety of workers' bodies, hands, and feet; safety belts and safety ropes should be worn before going down and canning.

(1) Head protection

When there is a danger of an object falling or hitting, a safety helmet must be worn.

(b) Eye protection

When dust, gas, vapour, mist, smoke, or flying debris are irritating to the eyes or face, safety goggles, chemical-resistant goggles, or face masks (requiring overall consideration for the simultaneous protection of the eyes and face) must be worn for eye protection.

(c) Fall Protection

When you need to climb (more than 2m) or risk falling (such as entering the tower), you must fasten the seat belt to prevent it from falling.

(D) Hand protection

Hand protection is mainly to wear protective gloves that are cut-proof, anti-corrosion, anti-infiltration, heat insulation, and insulation. Insulation, non-slip, and other gloves are suitable for:

(1) Cut-off when touching a sharp object or a rough surface;

(2) When it comes into contact with chemicals, use protective products that are resistant to chemical and chemical penetration;

(3) Thermal insulation protection may be performed when it may come into contact with hot or cold surfaces;

(4) Insulation protection products may be used when it comes into contact with live parts.

(five) foot protection

Wear protective footwear for flood protection, anti-corrosion, anti-infiltration, anti-skid, and fire protection. Suitable for:

(1) The place where the object falls may be worn shoes that are protected by smashing;

(2) The working environment that may be exposed to chemical liquids should be protected against chemical liquids;

(3) Pay attention to wear non-slip or insulated or fireproof shoes in certain environments;

(4) Use non-slip protective articles, such as non-slip shoes, when you may be exposed to oily or slippery surfaces.

(6) Selection of Protective Clothing for Confined Space

1. Selection principles for protective clothing in confined spaces

(1) Assess the site environment (types of poisons, possible concentrations, time of exposure, and environmental conditions);

(2) Select protective clothing or protective materials that may be used under field conditions;

(3) Testing candidate protective clothing under field conditions;

(4) Select protective suits that are most suitable for use under this field condition or for use as backup;

(5) Observe the characteristics of the decontamination method and repetitive use changes during use.

2. The basic requirements of protective clothing for airtight space

(1) Heat preservation at high or low temperatures;

(2) Waterproof in wet or submerged environments;

(3) Chemical exposure to chemical liquids may occur;

(4) Pay attention to flame retardant, anti-static, and radiation prevention in special environments.

In the above environment, it must be insulated, waterproof, anti-chemical corrosion, flame retardant, anti-static, anti-ray protection.

3. Selection of protective clothing for airtight space

Mainly based on personal protective equipment (PPE) classification to choose closed space protective clothing.

The protective equipment for emergency personnel of different protection levels is:

Protective clothing that requires Class A protection is a completely enclosed, chemical-resistant garment, gloves and boots, and an insulative respiratory protection device. Fully enclosed gas protective clothing can be used with the air supply device. Other protective items required for Class A protection include hermetically sealed gas-tight chemical protective clothing, protective gloves for chemical and chemical substances inside and outside, chemical-resistant boots, and safety helmets.

Unlike Class A, Class B protection includes a non-enclosed, splash-proof, chemical-resistant garment that provides Class A protection from liquids, but is not sealed. Liquid protective clothing can be used with the air supply device. Other protective articles required for Class B protection include long-tube air-supply respiratory protection products, internal and external chemical-resistant protective gloves, chemical-resistant boots, and safety helmets.

Class C protection includes a splash-proof garment with a face completely covered with a filter-type guard. Liquid or particulate conjoined protective clothing can be used in combination with filter-type protective masks, and other chemical-resistant boots and helmets.

D-class protection is limited to work clothes or other work clothes, boots and gloves connected with clothes, anti-smudge protective clothing, chemical-resistant gloves, chemical-resistant boots, and safety helmets.

(7) Hearing protection

According to the "industry enterprise employees hearing protection norms" choose ear protectors, to provide suitable communication equipment.

China Labor Insurance Network

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