Have all your utility pipes been inspected for flaw?
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Are the devices we experience in public engineering pipelines such as purified air, non-purified air, circulating water, fresh water, nitrogen, etc. all inspected for flaw? The SH3501 specification stipulates flaw detection, which is expensive. Let’s discuss it. I canceled this part of the flaw detection for our newly built equipment last year, but as the Technical Supervision Bureau becomes increasingly difficult to serve, I seem to be less courageous this year: L This post was last edited by mzykater on 2008-1-6 09:05 ]
Please carry out flaw detection according to the requirements of the specification. This is our construction rule and must be done.
After reading the post posted by the original poster, I feel that I am a bit too courageous and lack the awareness of self-protection. For pressure pipelines, especially those within the scope of SH3501, we must not be careless. We must not only strengthen the non-destructive testing of welds and 100% implement the requirements of the standard, but also strengthen the inspection and management of raw materials. Sometimes accidents may occur due to incorrect use of materials or material quality problems. The reasons for accidents are multifaceted. Once an accident occurs and it is found that the welds are not inspected according to the standard requirements, who is responsible? The standard stipulates that if a welding joint is not taken out, the identification of the drawing must be done (the film must have the pipeline number, pipe number, and welder number) so that accidents can be traced. If an accident occurs at a welding joint that is not taken out, the liability is much smaller. In addition, as a construction unit, you should not do this. When renewing the pressure pipeline installation qualification, you must check the construction unit's implementation of regulations and standards. Once serious violations are found, the installation qualification will be cancelled. You canceled the non-destructive testing of pipelines, which saved the company money, but once an accident occurs, what will the company ask you to do according to the law? Just because you save money for the company does not reduce your responsibility, you must have a sense of self-protection! ! !
First, look at the provisions of the design drawings. If there are no clear provisions in the design, there should be flaw detection requirements for compressed air and nitrogen based on the specification requirements specified in the design or the definition of pressure pipelines.
Agree with the 4th floor's opinion. For flaw detection of pipelines, first check whether there are requirements in the drawings and technical documents. If there are requirements,: Implement drawing requirements ； No requirement: implement * * Or the industry’s construction acceptance specifications. Design drawings and other technical documents and * * The construction acceptance specifications of the industry are the basis for our project managers to enforce the law. It is the law. We only have the right to enforce the law, not to legislate. The design institute selects construction and inspection requirements during design because the design institute has the power to legislate. If the building owner wants to cancel or reduce the proportion of flaw detection, he should first obtain the consent of the design department and go through written procedures before implementation. It is absolutely not allowed to decide to reduce or cancel pipeline flaw detection without the consent of the design department. Because the project cost already includes the inspection costs within the flaw detection ratio determined in the standard specifications. The poster's private decision to cancel the pipeline flaw detection only shows that your project management did not follow the construction procedures. If a quality or safety accident occurs as a result, you will really have to live with it.