I would like to ask the experts: Do devices such as modules inside an SIS cabinet need to undergo SIL certification?

2021-04-22View Original

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RT I would like to ask the experts: Do devices such as modules inside an SIS cabinet need to undergo SIL certification?

Reply #22021-04-23

Theoretically, it is required in all cases; generally, manufacturers will obtain SIL certification for the entire SIS system as a whole. Currently, solenoid valves and safety barriers used in new projects must also have SIL certification.

Reply #32021-04-23

It’s not just a theoretical requirement for certification; rather, systematic certification is necessary, and it must be a **standard SIL certification. Those without this certification are not allowed to sell the equipment, and they will definitely be sued if they do so. A SIS system without SIL certification can’t even be called a SIS system – what’s the use of it?

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