It seems part of the answer for your Client could hinge on a risk analysis.
1. How important is the maintenance of business operations in other gas cabinets if one gas cabinet functionality is interrupted? 2. How likely is it that an event which is capable of taking one gas cabinet out-of-service will occur? 3. How likely is it that an event from item # 2, will also be capable of taking other gas cabinets O.o.S? 4. What quantities of gas are involved? Those types of "what-if" questions might give you some direction, if you wanted to customize the design beyond what prescriptions offer. I know that virtually all the NFPA Standards allow for a performance based approach, which can save you capitalized and IT&M costs if the specific application you are designing to, warrants. For example, if the gases are flammable/explosive, and the facility is critical, your Client's business needs may be the driving force for going with redundant and separate circuits. If the gases in a particular cabinet are inert, it may not be worth installing circuit separate from the other inerts. If you need flexibility for future and unanticipated functionality, you may want separate circuits. Sincerely, -- Scot Deal Excelsior Fire Engineering _______________________________________________ Sprinklerforum mailing list [email protected] http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum For Technical Assistance, send an email to: [email protected] To Unsubscribe, send an email to:[email protected] (Put the word unsubscribe in the subject field)
