Mar 20 • Functional Safety Question ❓
Safety Compliance Checks on Vendor Skids
Hi all (again),
I am currently working with a Client which has asked me to carry out a C&I compliance assessment on vendor skid coming from China.
The skid is fair size (approx. 400m²) as it contains a full Pyrolysis unit along with it's own BPCS Control System and Independent Fail Safe Controller. Among all the other C&I compliance checks I am doing, the Functional Safety checks is one of the main items on my radar.
My initial TQ's to this particular vendor contain queriers around how they have managed their SIL rated trips, i.e. which Safety Standard have they complied with? and also what lifecycle documentation they can provide, i.e. Hazard Study Reports, SRS, SIL Verification Calcs, SIF Validation evidence etc? (I am awaiting their response) ..
I often hear that we should treat Vendor packages as black boxes, however I believe there must be some level of assessment which must be carried out by the Principal Designer to ensure the equipment being supplied is compliant to our standards, and has followed robust safety lifecycle?
My question to the team is, what sort of assessment would you carry out on 3rd party skids the size of this?
Again, any opinions on this one would be hugely appreciated!
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Safety Compliance Checks on Vendor Skids
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