Is a qualified designer required for the layout plan of detection points for combustible and toxic gas detectors and alarms?
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The question is as the topic. Are the detection points for combustible and toxic gas detectors arranged by the enterprise based on actual site conditions in accordance with the requirements of GB50493, or are they designed and depicted on drawings by the design institute? GB50493 is a design standard, but some older enterprises and facilities did not meet the requirements in the past; can they now set things up according to this standard and create layout diagrams on their own? Isn’t it a bit troublesome and time-consuming to approach design institutes for all these? During a recent inspection, experts found that the number of detection points for flammable and toxic gas detectors at the site was higher than what was indicated on the layout diagram, indicating a discrepancy between the two. Of course, there is a problem; it should be rectified. But is it absolutely necessary to have a design institute carry out the design and produce the drawings?
Yes, such companies need to turn to design firms, because no matter how much they make changes, there is no proper design, let alone one that meets design standards.
Isn’t it okay to give more? As long as it’s not less, right? The expert seems to be nitpicking
In accordance with the requirements of GB50493, the layout plan for detection points of combustible and toxic gas detectors must be designed and drafted by a qualified design institute. The design institute will conduct on-site inspections and evaluations based on the actual conditions, and provide layout plans that meet the regulatory requirements. For some older enterprises or existing installations, if the previous layout did not comply with the standards, they can now make the necessary adjustments in accordance with those standards and draw up new layout diagrams. However, to ensure the accuracy and compliance of the layout plan, it is still recommended to engage a qualified design institute for the design work. It has been recently found that there are issues with the detection points of flammable and toxic gas detectors not matching the layout diagrams, and rectification is required. To prevent similar problems from occurring again, it is necessary to engage a design firm to carry out the design and produce layout drawings that meet the regulatory requirements. Although it may require some time and effort, doing so ensures that the placement of the inspection points meets safety requirements and helps to avoid potential risks and problems. .
50493-2019 applies only to new construction and expansion projects. If an old device does not meet the requirements of the new standards but has not been modified or expanded, and still complies with the requirements of Standard 09, it can remain unchanged. However, when it comes to the renewal of the safety production license, a safety assessment report must be prepared. The assessment company will identify issues in accordance with the 19th edition of the regulations, and corrections then need to be made.
There’s no such mandatory requirement, right? Generally, it is professional testing companies that provide opinions and schematic diagrams.
According to the current process management requirements, the scope involved in changes is also quite large. Even under the new regulations, the existing safety facilities are insufficient to meet the requirements; they need to be added or strengthened. Strictly speaking, this constitutes a modification. In particular, when adding new facilities, if there is no corresponding design, they fail to comply with the regulations. Of course, sometimes when I think about it, being stricter is also fine! This way, there will be fewer facilities that are designed on a whim: lol
It is recommended to hire a qualified design firm for the design; otherwise, any issues pointed out by experts will require corrections, which is very troublesome. Most importantly, experts these days are not necessarily all-rounder; if you come across some unreliable ones who exaggerate small problems, it will only cause more trouble. Let’s do it all at once.
It’s better to make the changes early on; otherwise, they’ll still need to be done later