Hello again. Can a quick response sprinkler and a standard response sprinkler be combined in same system?
Standard response sprinklers can be in the same system with quick response sprinklers as long as they are in separate rooms/enclosures. If mixed in the same room, then "skipping" can occur an not control the fire effectively.
I agree with Emmanuel. However, some of the local codes and the occupancy chapters in NFPA 101, Life Safety Code only allow quick response sprinklers. You will need check the building and life safety codes before installing a mix of sprinklers in your system.
I want to address the mixing of QR and SR sprinklers being installed in the same compartment for a NFPA 25 inspection. Is there a code in NFPA 25-2017 that addresses this?
The great 25 basically says
The system is considered to meet 13 as it sets.
Inspect what is there
You can do a note
184.108.40.206* This standard does not require the inspector to verify the adequacy of the design of the system.A.220.127.116.11 The requirement to evaluate the adequacy of the design of the installed system or the capability of the fire protection system to protect the building or its contents, is not a part of the periodic inspection, testing, and maintenance requirements of this standard. Examples of items not covered by this standard include the evaluation of unsprinklered areas and the spacing of sprinklers. However, such evaluation is the responsibility of the property owner or designated representative as indicated in 4.1.6, 4.1.7, and the Hazard Evaluation Form in Annex E.
Yes - NFPA 25 does address your situation. During a number of my inspections, the original standard response sprinklers for some reason (usually renovations) were replaced by quick response sprinklers in the same room. It was relatively easy to determine the evidence of the renovations by observing the manufactured date codes on the sprinklers. 1996 was the first edition of NFPA 13 that required quick response sprinklers. So that should give some idea when standard response sprinklers could have been installed.
The references are from the 2017 NFPA 25:
Under Section 5.4 Maintenance:
A fire safety inspector/surveyor should be confirming compliance to the NFPA 25 as required and referenced by the building safety code (such as NFPA 1 and NFPA 101) not just observing the condition of the sprinkler heads. Sprinkler system compliance according to NFPA 25 should include the review of the records of the maintenance in accordance with 4.3.1.
NFPA 13 2016
Appears as Emmaunel said
OHHH I am not an engineer, so you can discount my reply if you want
Thanks for the section.
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