Fire Protection Systems

niko in Fire Protection Systems2 weeks ago (Show more)

Max. height from floor of sprinkler heas

I'm design a terminal OH2 and height of sprinkler head in one part of grid is up to 9.7 m! How can I proceed? May be to upgrade at HH1?

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sdk (to niko) 21 hours ago (Show more Show less)

dear Nikolin, I'm not an expert on this, but I would say you could just use standard (CMDA) sprinklers. According to NFPA 13:2019, table 21.3 these can be used up to 35 ft (10,7 m) building height. I know this table is for storage application, but such height is allowable for storage, I would say, it's also for non-storage. NFPA 415 gives no…

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sdk in Fire Protection Systems22 hours ago (Show more)

Miscellaneous storage NFPA 13:2019

Dear all. I am confused about miscellaneous storage in NFPA 13:2019. For example: For OH2, article 4.3.4 states that I can have "stockpiles of moderate to high combustibility that do not exeed 12ft". It does not give any further restriction about eg. area of stockpiles. From this I conclude that, as long as the combustibility is not "very high",… (Show more)

jcsalas in Fire Protection Systems2 days ago (Show more)

DUCTOS ALARMA Y DETECCION

BUENAS NOCHES, en que articulo de NFPA 70 u otro se indica el tipo de material (metalico / no metalico / otro) para los tubos portacables de alarma y deteccion de un sistema contra incendios ?

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nocivus (to jcsalas) 1 day ago (Show more Show less)

Ver el artículo 760 de NFPA 70. Para zonas clasificadas se podría requerir aplicar el artículo 500.

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vincent_balbuena in Fire Protection Systems2 days ago (Show more)

Clean Agent System, minimum distance of support to the nozzles.

Hello everyone, I would like to ask your opinion pertaining to the requirements of the minimum required distance of pipe supports from the discharge nozzle of a Clean agent system particular to FM200. I check with the deferent manufacturer design manual and I found that only the spacing distance between supports was provided but not the minimum… (Show more)

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vincent_balbuena (to faizal_sharin) 1 day ago (Show more Show less)

faizal_sharin Thanks for the info. I think this is OK instead of not having a reference at all.

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pracha.p in Fire Protection Systems1 day ago (Show more)

NFPA 2001 - about Fittings

Dear Sir or Madam, We have question about NFPA 2001. Refer to NFPA 2001 (edition 2018) (As attached) for 4.2.2.2 "Fittings shall have a minimum rate working pressure equal to or greater than the minimum design working pressure specified in 4.2.1.1, for the clean agent being used, or otherwise listed or approved. 4.2.2.3 "For systems that… (Show more)

ashikpn in Fire Protection Systems2 weeks ago (Show more)

Foam sprinkler system Design

Dear all , Sub : Foam sprinkler system Design: one of my ongoing project , Foam water sprinkler system is required to protect the generator area of 675 square meter . as per NFPA 16 ,Design area shall be 465 square meter. if protection area of the generator is more than 465 square meter , shall i consider 2 system separately for generator… (Show more)

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arafff (to ashikpn) 3 days ago (Show more Show less)

Dear Sir, Since this is a deluge system, you will apply the design rate of 0.16 gpm/ft² (assuming all hydrocarbon fuel) over the whole area to where ALL of the sprinkler heads are open: i.e. (675 M²) – 7,263 ft² x 0.16 gpm/ft² = 1,163 gpm. (6” proportioner). Using a 3% A.F.F.F. for ten (10) minutes = 349 gallons (400-gallon…

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tdelorenzo in Fire Protection Systems4 days ago (Show more)

Fire Pump Acceptance Test

In NYC the Code Reference is NFPA 20-2007 for Fire Pump Acceptance. As per sec 14.2.7.2.2 requires 150% of rated capacity of the pump. This is normally done at a test connection at the ground level. I witness a test that did not have the ground test connection. The flow was measured at the roof . The pump ran at 100% capacity at the highest level.… (Show more)

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cdafd (to tdelorenzo) 3 days ago (Show more Show less)

NFPA 20 and 25 require 150% flow for initial test and future tests. Has anyone researched why the test header was not installed? There should be at lease two hose connections on the ground level. Why not flow / test from those?

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harry.calabia in Fire Protection Systems6 days ago (Show more)

What is the concept of "Addition to existing light hazard system from NFPA 13 Chapter 9"?

We built a new hotel and connected it to the existing hotel. The new hotel has its own fire pump and distribution line. The existing hotel has standard response sprinklers. Can we adopt 9.4.3 (5) and install standard response to the new hotel? Big thanks for your input.

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harry.calabia (to milt.werner) 4 days ago (Show more Show less)

Thanks Sir. Actually I am part of the builder and not of the design. Base from the FALAR, NFPA 101 is the guide. The connection of the two towers is by a common/consolidated lobby at Gf and 2f. This means that the existing has no approved separation from the addition. The building has no separation at all, technically. So, QR for the new. The…

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mahakalkarsv in Fire Protection Systems5 days ago (Show more)

NFPA-55-Table 6.2.1 Design and Number of Control Areas

Dear NFPA members I have following question on NFPA-55- As per Table 6.2.1 Design and Number of Control Areas, it indicates that it is only allowed to have 4 Control Areas per floor per building. In case of single story buildings with large area, does that still limit the total number of control areas to 4 , or is there a way to address this… (Show more)

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cdafd (to mahakalkarsv) 5 days ago (Show more Show less)

Apply footnote d and e:: 6.3.1 Quantity Thresholds for Compressed Gases and Cryogenic Fluids Requiring Special Provisions. 6.3.1.1 Threshold Exceedances Or add a firewall and make two buildings, than you can have eight control areas

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ankasales3 in Fire Protection Systems1 week ago (Show more)

All The new buildings in USA requires 10 years non-replaceable smoke alarm?

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milt.werner (to ankasales3) 5 days ago (Show more Show less)

For code enforcement purposes in the USA, building safety codes such as NFPA 101, Life Safety Code; NFPA 1, Fire Code; the International Building Code (IBC); and the International Fire Code (IFC) will tell you when to install a single or multiple-station alarm responsive to smoke (smoke alarms) in existing buildings and new construction.…

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