The depth of the special section on safety design

It should reach the level of construction design.

The safety section should be prepared during the preliminary design phase; as for the construction drawing phase, how many of these experts can actually take the time to go through all the drawings carefully? Besides, there’s no need to review things like piping diagrams either; moreover, some experts may not even have the capability to review construction drawings. It’s useless to simply say that one needs to reach the level of detail required in construction drawings; doing one’s job properly and carefully working on the preliminary design is enough to fulfill one’s responsibilities.

The special section on safety facility design lies between the preliminary design stage and the construction drawings; the preliminary design is too superficial to meet the review requirements, while the construction drawings are too detailed, which hinders the review process. The special section on safety facility design focuses mainly on the general layout and the installation of safety facilities.

Reference can be made to Document No. 8 issued by the Work Safety Administration, which sets very strict requirements. There is also onshore oil and gas. 5# lqh2009 from Department 1 of the State Administration of Work Safety

Theoretically, the design of safety facilities is essentially the same as the original design of occupational health facilities; it’s just that as safety requirements become stricter, the scope of what is included continues to expand. It should be in the preliminary design stage. However, in order to clearly express the concepts behind the design of safety facilities in a dedicated document and to ensure successful approval, it is necessary to meet the detailed requirements of construction drawings in aspects such as the general layout plan, the process flow diagram with control points, the equipment layout plan, the layout plan for fire protection facilities, the layout plan for grounding facilities, and the layout plan for lightning protection facilities. This will also lay a solid foundation for subsequent construction drawing design. The design of our company’s safety facilities fully meets the requirements specified in the construction drawings, and the same standards apply to internal management as well.

Installation falls within the preliminary design phase, and many people likely think that it is sufficient for most aspects of installation to meet the requirements outlined in \"HGT 20688-2000 Requirements for the Depth of Content in Preliminary Design Documents for Chemical Plants.\" This is because tasks such as calculations and selection are basically completed during the preliminary design stage. However, careful consideration must be given to the safety facilities categorized into three main groups and thirteen subgroups listed in the installation specifications; some of these safety facilities are not clearly defined in the HG standards. Some projects have an expanded basic design phase or FEED phase, and the documents from this phase are sufficient to meet the installation requirements.

Deeper than the preliminary design, but shallower than the construction drawings. See to what extent the review experts are demanding it.

I work in this field; installing it is sufficient up to the preliminary design stage； Sometimes we go on to work on the construction drawings, with even greater detail!

The safety section is from the preliminary design stage; it’s surely much less detailed than the construction drawings!

When we write reports, we mention what has been set up, rather than what should be set up; it seems like the work is carried out based on the construction drawings. In most cases, the factory completes the construction first and then handles the necessary procedures later. Writing reports is quite tedious.