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This post was last edited by fanlinjiang on 2015-6-1 at 16:33. Question: When is the process of \"three inspections and four fixations\" carried out after the installation of chemical processing equipment? Who participates? Does the designer need to arrange for on-site representatives to attend? If I participate, what responsibilities does the design representative have, and what documents need to be signed? I would appreciate your advice; thank you!
The three inspections and four determinations represent an intermediate inspection phase at the end of construction; it involves checking the tasks that have been completed, identifying potential safety hazards, and detecting any omissions in the design. The latter two aspects fall under the responsibility of the designers, so it is necessary for designers to be involved, primarily by signing the documents related to these intermediate inspections
Conduct the three inspections and four fixations near the completion of chemical plant installation
At the end of the equipment installation, a three-checks and four-fixes process is carried out; to shorten the construction period, this process can also be initiated earlier.
The three checks and four determinations are a very detailed and tedious task; one must be careful
“\"Three inspections and four determinations\" is an important task that needs to be carried out in the later stages of project construction; it is generally done after the installation of pipes with a diameter of DN50 or larger. The project supervisor oversees this process, with the client’s project management department and personnel responsible for production preparation also participating. The supervisor must prepare an inspection report, and the construction unit should provide a written response once the work is completed.
“\"Three inspections and four determinations\" is an important task that needs to be carried out in the later stages of project construction; it is generally done after the installation of pipes with a diameter of DN50 or larger. The project supervisor oversees this process, with the client’s project management department and personnel responsible for production preparation also participating. The supervisor must prepare an inspection report, and the construction unit should provide a written response once the work is completed.
The three inspections and four determinations are generally carried out after the project is basically completed but before it is handed over; they are usually organized by the supervision unit, with the owner, the construction unit, and the design unit participating. The design unit must be involved, as confirming design-related issues during the inspections requires the input of the design unit, which is responsible for responding to and confirming the design questions raised by various parties