I am designing a fire alarm system for a psychiatric hospital that has living quarters for the patients I'm using low-frequency speakers strobes and smokes in the main living area do I need to put a horn strobe or a strobe in the private bathroom
You use the term hospital which is defined by NFPA codes and standards:
"A building or portion thereof used on a 24-hour basis for the medical, psychiatric, obstetrical, or surgical care of four or more inpatients."
A health care occupancy as defined by NFPA codes and standards:
"An occupancy used to provide medical or other treatment or care simultaneously to four or more patients on an inpatient basis, where such patients are mostly incapable of self preservation due to age, physical or mental disability, or because of security measures not under the occupants' control."
The fire alarm system requirements of NFPA 101 (Chapter 18) and IBC (407) for hospital inpatient care as far as I know does not require fire alarm notification in the patient sleeping quarters. These occupancies have a "defend in place" strategy for the design of the fire safety features that just require staff notification from the fire alarm system (private mode signaling as permitted by NFPA 101). The staff is responsible for the patient safety during the alarm conditions. It may not be appropriate to use strobes and horns in the living quarter due the patients mental disability. There are also secure measures in a psychiatric hospital that are not under patients control.
Be aware you should not be using NFPA 72 for scoping of the fire alarm system requirements. NFPA 101 and IBC provides the scoping.
Is there a code that I have missed that requires strobes in inpatient sleeping quarters?
Thought I would add some more information for the general description of Private Mode Signaling:
*Allowed when occupants are not capable of responding without assistance (Defend in Place Occupancies)*Alerts only responding staff*Audible and Visual alarms in staff areas (coded chime systems)*Systems often have a general alarm feature*Sound pressure levels 10 db above ambient*Fire emergency response begins
Areas for Private Mode Use:
*Patient sleeping and bedrooms, and living areas*Staff is present at all times.*Notification of the staff from the public areas is possible.*Patient room and living area fire alarm tone or visuals are not required to alert the staff.*Guests are best instructed by the staff.
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