In I-2 Occupancy that was constructed with IBC 2012 and NFPA 101 - 2009 what are the size limitation on a suite that is a Non-Patient-Care Suite. This area would be inspected by TJC who is using NFPA 101 - 2012 and I want to make sure that we have not exceed the size limitation. I am under the impression that the size limitation of 10,000 sf… Show more
This question is coming from a concern that I have over sprinkler riser systems device installation/replacing such as pressure, tamper, water flow, switches and related low voltage devices on any working riser system and the requirement for any technician to be able to perform, and a State licensed Limited Energy technician performing this work.… Show more
How to sprinkler protect a cold warehouse :max. ceiling height of 17.8 m, max. storage height of 8 m. Any advise to give? Have anyone tried in-rack sprinklers in the cold warehouse?
Kindly advise if any, what NFPA regulation requires passenger lift pressurization inside a building that is fully sprinkler protected and the passenger lift shafts walls are 2 hour fire rated?
Attached sketch shows utility xfmr1 200A 480/277V existing which feeds the existing fdr #1 electrical room in multi occupancy bldg. The plans now show new xfmr2 800A 480/277V which feeds thru new fdr #2 Electrical Room. Told that a building can have only one service and second is not acceptable thru any exception. I was told 230.40 exception #1… Show more
Dear Expert Colleagues About Fire Water network design conditions: Do you know if there is any international standard stating or recommendating a maximum velocity ? There are some good engineering practices (or even some CLients specs) stating a max. values between 3 and 5 meters/sec, but it would be quite helpful to identify if there is any… Show more
Dear Community, I wonder, which code or table is require to determine a distans from Storage of Liquids (Fuel) in Underground Tanks to school or any public buildings?
Assume that two SWGRs A and B are in compliance with NEC 2014 Section 230.2 first paragraph which says: For the purpose of 230.40 Exception no. 2 only, underground sets of conductors, 1/0 AWG and larger, running to the same locations and connected together at their supply end but not connected together at their load end shall be considered to… Show more
There is one 4 storied building using as garments factory. The building is protected with Fire Hydrant System. My question is: 1. The pump room is outside of the main factory building and the pump room is 2 hour fire rated structure. Inside the pump room, Diesel engine and tank (210 gallon capacity) is installed. Should we use automatic… Show more
1. As per NFPA 20 "184.108.40.206 The net pump shutoff (churn) pressure plus the maximum static suction pressure, adjusted for elevation, shall not exceed the pressure for which the system components are rated. 220.127.116.11* Pressure relief valves and pressure regulating devices in the fire pump installation shall not be used as a means to meet the… Show more
1.- Pressure relief valves and pressure reducing valves have different purposes. The first is intended to protect the system discharging the water back to the water tank when the pump is driven by a variable speed engine/motor and the speed increases above the nominal speed of the driver (normally used with Diesel engines) causing an increment in…
Will the emergency disconnect be required for replace and/or upgrade to an existing dwelling service?
Someone said the need to install sprinklers in escalator trusses was deleted from NFPA130. Is that true?
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1. As per NFPA 20 "18.104.22.168 The net pump shutoff (churn) pressure plus the maximum static suction pressure, adjusted for elevation, shall not exceed the pressure for which the system components are rated." My question is, (in case of sprinkler protected building) does sprinkler is included among the above-mentioned system components. Because… Show more