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gk.karkashadze
hi everyone,  I am new to the field and i need your advice. i couldn't find a rule of addressable fire system in NFPA 72, where does require to install "addressable fire system" and "conventional fire system" ? where can i find the rules?   thanks,
in Fire Protection Systems
marcus.braun
Hello, how do drivers for fire pumps in NFPA 20 sprinkler installations have to be sized correctly? Do the drivers have to be sized only up to the 150% of the rated flow or do the drivers have to be sized to the non-overloading power consumption point which is tested/examined at fire pump such as FM approval or UL listing? 
in Fire Protection Systems
jakidd
Do I need seismic support for a fire life safety sprinkler suppression system in a category B building, when the component importance factor is 1.5 as referenced in ASCE 7 section 13.1.3 Refer to the attachments below. Thanks. DKC.
in Fire Protection Systems
mignot
Click to view contentIs it possible to install foam chamber in geodesic dome tank roof  (witn internal floating roof) instead of foam chamber in shell tank?? I have not found something about in NFPA 11. What criteria I should take into account? Product: Gasoline Diameter tank=134 Ft Height= 52 Ft   example Image
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ashikpn
Dear All  ,    Subject : Clean agent system ( FM200 Gas ) Nozzle Location In multi height area of Enclosure    Good Day ,    Enclosure having multi heights in the FM200 System protected area .major portion of Enclosure area 80% ( Height 5.25 Meter) and Remaining Portion of Enclosure area 20% (Height 6.9 meter) .how the Nozzle installation would… (Show more)
in Fire Protection Systems
m69421
I have a building owner that has a 38 year old fire pump that only supplied two standpipes in a 4 story apartment building. It did not supply sprinklers. About 10 years ago we removed the hoses and appliances in the box, so the standpipe can still work as a manual standpipe for Fire department use. So does the owner have to keep the fire pump?
in Fire Protection Systems
cox
The building inspector is requiring an NFPA 13 sprinkler system to be bonded based on the 2017 NEC Section 250.104  Has anyone else run across this?  Here is what both sections state. Thank you, 8.18 Electrical Bonding and Grounding. 8.18.1  In no case shall sprinkler system piping be used for the grounding of electrical systems. 8.18.2 *  The… (Show more)
in Fire Protection Systems
mch
Dear All A question to members of this forum. NFPA describes "Listed" as Equipment included in a list published by an organization that is acceptable to the AHJ. OHSA (under United States department of Labour) mention a number of various NRTL's here among FM, UL, TÜV etc. Do anyone know if its acceptable to design a Fire fighting system using… (Show more)
in Fire Protection Systems
j.k.park
Hi, I'm looking for the technical background of the annul test condition of the fire pumps. Especially, Why do I need to do the fire pump test under 150% of the rated capacity flow. If someone has the information about this, please reply on my question. Thank you in advance. 
in Fire Protection Systems
ncarter
All, I am trying to determine how this is applied to an Apartment Building. It doesn't show up in the Appendix? Am I correct in saying it only applies where Exterior Balconies, Exterior Decks and Ground Floor Patios exist. For instance if a Building doesn't have any upper level Decks or Patios is it required on the Entry porch or back Patio if… (Show more)
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