Brief Discussion on Safety Integrity Level Verification
The safety instrumented system(SIS)is an important independent protection layer in the protection layer analysis model,and undertakes certain risk reduction tasks.Safety integrity level(SIL)verification belongs to SIS verification and is a specific stage of SIS verification activity in SIS safety lifecycle.It aims at ensuring that the SIS engineering design meets the requirements,and SIS can achieve the required objectives.To design SIS that meets the requirements,SIL verification should be carried out.The basic concepts related to SIL verification is introduced.The requirements for SIL verification are proposed.Several issues related to SIL verification are explored.
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