How should a safety instrumented system undergo SIL assessment
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During recent safety inspections by higher authorities, a potential hazard was identified: an SIL assessment was not conducted in accordance with the \"Guiding Opinions of the State Administration for Work Safety on Strengthening the Management of Safety Instrumented Systems in the Chemical Industry\" (No. An Jian Zong Guan San 116), which means it is not possible to ensure that the existing safety instrumented systems meet the requirements for risk reduction. I checked Document No. 3116 issued by the General Administration of Work Safety, which requires that by the end of this year, all enterprises involved in the \"two key areas and one major project\" should have safety instrument systems that meet the required standards. Putting it all together, since a safety instrumented system already exists, an SIL assessment is still required to determine whether the risk reduction requirements are met. So, please have the expert explain how the SIL assessment is carried out What qualifications are required for the institutions and personnel to conduct the assessment?
In simple terms, a safety instrumented system cannot be installed just because one wants to; it is necessary to determine its SIL level first. After installation, a SIL verification is required to ensure that the installed SIF circuits meet the specified level. There are professional consulting services available to help with these tasks; if you need such services, you can send a private message on the site.
Only those with the qualifications of a TUV functional safety engineer can carry out SIL classification and calculations, and only then are the evaluation results valid. Jinan Shuangyu Automation Technology is recommended.
You can find a qualified design institute.
Specializing in SIL grading and verification. qq 278886184
The experts’ opinion is that the safety instruments were not subjected to SIL evaluation, and no relevant safety instrument verification reports were provided. The requirement in Document No. 116 is to complete this by the end of 2019.