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stevehanson
I know painted the devices (initiating and notification) is not allowed. Are the back-boxes they are mounted to allowed to be painted? I can't find anything other than the typical "Devices must be installed per manufacturer's instructions" kind of thing. Normally the instructions will be must be mounted to a listed/approved devices.     Thank… (Show more)
in Fire Protection Systems
jaimelichi
Good day,   Could anyone please provide son guidance on why this underground section collapsed? This is one of the connections from the 8” loop to a riser system which services a sprinkler branch.  The pumps consist of two 2,000 gpm @ 130 psi.  Previous hydro tests where successfully completed to the entire loop, there are 11 sprinkler systems… (Show more)
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vwoodworth
 This is regarding a new clubhouse/apartment building in New York state.  There will be a 2-hour use group separation between the A-3 Clubhouse and the R-2 apartment building.
in Fire Protection Systems
kavir
Good day Forum   Do you have any recommendations for fire rated wires to be used in an area experiencing heavy sea blast? the bare copper connections are turning black and corroding.   thank you.
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seb.nowak0
Good Morning All,   I would like to ask, when you calculate flow (base calculation) do you include coefficient or excess?   For example: CMDA 0.30gpm/ft2 (12.2 mm/min) x 2500 ft2 (232 m2) = approximately 750 gpm (2831 L/min) x 1.4 = 1050 gpm (3964 L/min)   1.4 is for disturbance flow excess/coefficient is this correct to add?    ESFR… (Show more)
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hantaaal
hi engineer i have deluge system for extinguishing and i want to know is there specific area  for deluge valve. i mean the maximum area can coverage by deluge valve. thanks 
in Fire Protection Systems
nav822nav
Hi, In fire water pump house the general installation of big fire water pumps is one side and the jockey pump is on another corner even if we take the suction from the same header and there is a lot of space left in between the big fire pumps due to the piping, can we install the jockey pumps in between the two big fire pumps if there is space… (Show more)
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firesafetypunjab
Hello to every one,i have a question that if a Highrise Apartment building has sprinkler system just in area out side apartments.Is it enough as per NFPA 13?or all apartments of highrise building required sprinkler in inside areas of apartments.Thanks
in Fire Protection Systems
nav822nav
If we have an LPG multi-container installation what is the best way to provide the fire water control valves, individual to every container or consider it as a group and provide one control valve for all the containers.     If possible please provide a supporting to your answer as per the code NFPA 58, NFPA 15, NFPA 13
in Fire Protection Systems
a7med_zahran
While designing out door parking Car shade-  steel Canopy which contain a fabric as a shade - its required for the fabric to pass test 1 or test 2 according to NFPA 101, NFPA 701.  But its not mentioned how many hours should the fabric be fire rated once its passed the tests?  I mean if the fabric passed test number 2, will it be fire rated for… (Show more)
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