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There is one thing for which I would like everyone to offer their suggestions: there is a gauge flange on the outside of the bottom of a tank, and we need to remove it. But the bottom of the tank is suspended; it has a diameter of about four meters. A hollow tubular structure of the same size serves as a support, which is approximately three meters tall and features four manholes, creating a semi-enclosed space. Is this considered a \"confined space\"? Should a confined space work permit be issued?
First, let’s take a look at the definition of a confined space: 1. The definition provided on Baidu: A space is considered a confined space if it meets the following conditions: Physical conditions (all 3 of the following must be satisfied): a) There is enough space for employees to enter and carry out the required tasks; b) Access and evacuation are restricted, preventing free entry and exit ; c) It is not designed for employees to work inside for long periods of time. Hazardous characteristics (meeting any one or more of the following) a) Presence of, or potential generation of, toxic and harmful gases ; b) Materials present or likely to generate material that buries entrants ; c) The internal structure may trap entrants inside (e.g., with fixed equipment inside or walls that slope inward) ; d) There are identified health and safety risks. 2. According to general safety standards, a confined space is a space in which it is difficult or restricted for people to enter and exit during construction; such spaces cannot be used for prolonged stays, have poor ventilation, insufficient oxygen levels in the air, or contain harmful substances. At construction sites, confined spaces are mostly in the form of storage tanks, reactors, trenches, containers, septic tanks, pipelines, etc. Then, considering what you mentioned in reality – the workplace is a semi-enclosed space – I believe it should be considered a confined space, and an work permit should be obtained.
The term \"confined space\" as used by chemical manufacturing units refers to enclosed or semi-enclosed facilities and areas within production areas, such as furnaces, towers, reactors, tanks, warehouses, tank trucks, pipelines, flues, tunnels, sewers, ditches, pits, wells, ponds, and culverts. Therefore, for confined spaces, a confined space work permit must be obtained.
I believe that the handling of any permits should be based on safety considerations; focusing merely on whether a work permit is necessary is a misconception when it comes to ensuring safety. It is important to consider all possible problems and stick to one’s own judgment.
Confined space: A space large enough for a worker to enter and exit as well as carry out work, with restricted access; it is not designed to be used as a workplace. Based on the above definition, I consider this to be work in a confined space.
Based on what you’ve described, it is necessary to go through the relevant procedures, as the working environment constitutes a confined space. I agree with the opinion from the 4th floor; safety work cannot be reduced to mere formality.
According to the definition of work in confined spaces, this task constitutes work in a confined space, and a hazardous work permit must be obtained
In accordance with our company’s regulations on safety management for work in confined spaces, Section 4: Work Procedures; 4.1: Scope of management for work in confined spaces; 4.1.1: Equipment and containers such as various towers, reactors, separators, heating furnaces, kettles, silos, and material tanks within production facilities; 4.1.2 Entering storage tanks such as oil tanks, sewage tanks, acid and alkali tanks, liquid sulfur tanks, as well as railway tank cars and road tank cars ; 4.1.3 Enclosed and semi-enclosed facilities and areas such as ditches, channels, tanks, pits, and sewers that lead into the wastewater treatment system ; 4.1.4 Other areas and locations: such as boilers, flues, pipelines, tunnels, gas systems, etc. According to clause 4.1.3, I consider it a confined space. Here are the precautions for your reference. 4.3 Hazard identification for working in confined spaces 4.3.1 Before entering a confined space for work, it is necessary to identify the hazards associated with the objective conditions of that space as well as the tasks to be carried out. For different types of tasks, corresponding procedures and safety measures should be established separately. 4.3.2 When the unit carrying out the work in the confined space and the unit to which the confined space belongs are the same entity, the hazard identification report shall be evaluated by the unit to which the confined space belongs. 4.3.3 When the unit carrying out the work and the unit to which the confined space belongs are different entities, and the work involved is related to the processes or equipment of the unit to which the equipment belongs in terms of safety, the work procedures for preparing the hazard identification report shall be provided by the unit carrying out the work, while the unit to which the confined space belongs is responsible for conducting the assessment. 4.3.4 When the unit carrying out the work is not the same as the unit to which the confined space belongs, and the work involved is not related to the processes or equipment of that unit in terms of safety, it is the responsibility of the unit carrying out the work to evaluate the hazard identification report. 4.3.5 The hazard identification report shall be prepared in two copies: one copy shall be attached to the copy of the \"Permit for Working in Confined Spaces\" kept by the safety technician, and the other copy shall be attached to the copy kept by the person in charge of the operation.
Whether it is a confined space or not, measures must be taken as long as it affects personnel safety
The purpose of obtaining permits is to ensure that safety measures are in place and to establish accountability; according to the definition of confined spaces, a permit for working in a confined space should be obtained based on the situation you have described
Work in confined spaces refers to enclosed or semi-enclosed facilities and areas within production areas such as furnaces, towers, reactors, tanks, warehouses, tank trucks, pipelines, flues, tunnels, sewers, ditches, pits, wells, ponds, and culverts. Work at this location is considered work in a confined space, and a hazardous work permit must be obtained.