what's the minimum level required of SIL (safety integrity
level)to use fire and gas system?

Answer Posted / laxit

Safety integrity leve has nothing to do with F&G System.
First of all you need to do SIL study for the system.In
case if you landup in SIL-0 or 1 or 2 system you can use
relavant type of SIL system. Inshort it depends upon your
SIF/SIL workshop outcome.

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