What is a limited space?

Question 1: What do you mean by limited space? Defined as a limited space, the following three conditions must be met at the same time:

1. The volume is large enough for people to enter completely;

2. The import and export are restricted or restricted;

It is not designed to occupy space for a long time.

What are the characteristics of limited space in the Law on Work Safety? According to the "three-party principle", the responsibilities of production and business units and their principal responsible persons, employees, * * and relevant departments in all aspects of safety production are determined, which is the characteristic of the Safety Production Law. 《

Question 3: What is a confined space and how to define it? The concept of confined space refers to closed and semi-closed facilities and places such as various equipment (towers, kettles, tanks, furnaces, barrels, pipes, containers, etc.). ) and production units of sewers, ditches, pits, wells, ponds, culverts, valve rooms and sewage treatment facilities. In other words, all equipment, facilities and places that are poorly ventilated and easy to cause toxic and harmful gases to accumulate and lack oxygen are called confined spaces (confined spaces), and operations in confined spaces are called confined space operations. Toxic, flammable and explosive gases such as hydrogen sulfide, carbon monoxide, methane (methane, gas) may be produced or exist in some confined spaces, and there is a danger of hypoxia. If preventive measures are not in place, accidents such as poisoning, suffocation, fire and explosion may occur. In addition, most confined spaces have narrow working surfaces and complex working environments, which are prone to accidents such as electric shock, mechanical damage, drowning and collapse and burial. The industries involved in confined space operations, such as coal mine, non-coal mine, chemical industry, oil refining, metallurgy, construction, electric power, paper making, shipbuilding, building materials, food processing, catering, municipal engineering, city gas, sewage treatment, special equipment, etc. There are also many accidents in confined space, including gas explosion, gas suffocation, goaf suffocation, and smoke poisoning in coal mines.

Question 4: What is confined space operation? Confined space is called when the following conditions are met: physical conditions (the following three conditions are met at the same time) a) there is enough space for employees to enter and carry out designated work; B) Access and evacuation are restricted, and it is impossible to access freely; C) It is not designed for employees to work in the office for a long time. Hazardous characteristics (meet any one or more items) a) toxic and harmful gases exist or may be generated; B) There are or may be materials to bury the contestants; C) The internal structure may trap the entrant (such as the internal fixing device or the walls are inclined inward); D) There are identified health and safety risks.

Question 5: What is the definition of limited space? It is within 1-3 square.

Question 6: Definition of finite space A finite space is defined as the need to meet the following three conditions, all of which are indispensable: 1. Large enough for people to enter completely; 2. The import and export are restricted or restricted; It is not designed to occupy space for a long time.

Question 7: Confined spaces include those enclosed by departments, with narrow entrances and exits, not designed as fixed workplaces, and poor natural ventilation, which may easily lead to the accumulation of toxic, harmful, flammable and explosive substances or insufficient oxygen content.

Limited underground space: such as underground pipelines, basements, underground warehouses, underground works, underground ditches, tunnels, culverts, pits, abandoned wells, cellars, sewage pools (wells), biogas digesters, septic tanks, sewers, etc.

Limited space on the ground: such as storage room, distiller's grains pool, fermentation pool, garbage station, greenhouse, cold storage, granary, silo, etc.

Closed equipment: such as cabin, storage tank, vehicle-mounted tank, reaction tower (kettle), refrigerator, pressure vessel, pipeline, mutual passage, boiler, etc.

Question 8: Where is the limited space? Very strict.

Question 9: Introduction to Limited Space Limited space is the definition of safety science. Confined space in English is translated into confined space, confined space and confined space.

Question 10: What does the limited safe production space mean? Limited space also means limited space.

Such as ditches, ponds, tanks, tanks and other places where people work, such as places involving harmful gases and oxygen-deficient environment, may lead to poisoning death.

This kind of place involves related requirements such as safety management system, energy management, power failure, locking and listing system, toxic and harmful gas detection in the place, operator monitoring system and so on.

Cases such as: hydrogen sulfide poisoning accident caused by cleaning trench.