American Fire Sprinkler Association [http://www.firesprinkler.org/]
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
AFSA Technical Update
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
A newsletter dealing with codes and other technical issues
December 20, 2013
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
NFPA 13R and 13D Hose Allowance
"It has been local practice to include hose demand in NFPA 13R applications.
Upon
further research, we cannot find any criteria that would require hose demands to
be in the hydraulic calculations in NFPA 13R and NFPA 13D applications. It is
stated
very clearly in NFPA 13 as to the hydraulic demand requirements. Per NFPA 13R,
are
hose demands required in hydraulic calculations?"
In response to your question we have reviewed NFPA 13R, 2013 edition as the
applicable
standard. Our informal interpretation is that the hose stream allowance is not
required
to be included for NFPA 13R applications.
This is addressed in annex A.7.2 where it indicates that only the intent of NFPA
13R to reference the sprinkler discharge (flow and pressure), number of design
sprinklers, and position of sprinklers (distance from walls, ceilings, and other
sprinklers) requirements of NFPA 13. Other rules from NFPA 13 such as
sprinklering
of combustible concealed spaces, hose stream demand, and water supply duration
are
not intended to be referenced by 7.2. It is also the intent of 7.2 to apply to
those
systems or portions of systems that are outside the dwelling unit but have been
determined to be considered residential or incidental to residential and within
the scope of this standard. (Also see A.1.1.) In addition, the NFPA 13R Handbook
commentary under Section 6.3 says that where quick-response sprinklers are
installed
inside a dwelling unit as part of an NFPA 13R system design, or where they are
used
outside the dwelling unit, the spacing, obstruction criteria, and deflector
distance
requirements from NFPA 13 apply. The other requirements from NFPA 13, such as
putting
sprinklers in combustible concealed spaces, ceiling pockets, or hose stream
demands,
are not incorporated into NFPA 13R by this paragraph. As such, no hose stream
allowance
is required by NFPA 13R. Since you also mentioned NFPA 13D, that standard does
not
make any reference to hose stream demands and are not required to be included in
the hydraulic calculations.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
firesprinkler.org
[http://r20.rs6.net/tn.jsp?f=001eOfslZfbUcnd9xoqP9V9OS3W6KiD_KhuUBu7bWMXZgtuXUPVKZia6JKN5sIjbtOxg4dXFdnWRP2du_dfZLBP-0Jhf_Y96nMnH4443MIoC5upbj3ZaVvfVIzyK1p16ctGsbAS0Q9TOeZ6AZJVqsp-fQaA2ozJebHRWlxjC3gIkauSKdoPskYQFA==&c=6cS-WCy-JbRJ30nBWpUPCtCm07od6eHkd74ODAW51ncUAYaVrIkjOQ==&ch=hCfqOgKJmJjwqnIvbxHimaxIWeSYoZBGS9KZo1eiDrnRctl02qt5Aw==]
Hosted by the American Fire Sprinkler Association
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Technical Update is prepared by the Technical Services Dept. of the AFSA: Vice
President
of Engineering and Technical Services Roland Huggins, a PE registered in fire
protection
engineering; Phill Brown, a NICET IV certified automatic sprinkler technician
and
NFPA Certified Fire Protection Specialist (CFPS) and Tom Wellen, a PE registered
in fire protection engineering. This is provided with the understanding that
the
AFSA assumes no liability for this opinion or actions taken on it and they are
not
to be considered the official position of the NFPA or its technical committees.
Copyright 2012, American Fire Sprinkler Association.
All Rights Reserved
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
PDF Version
PDF Link
[http://r20.rs6.net/tn.jsp?f=001eOfslZfbUcnd9xoqP9V9OS3W6KiD_KhuUBu7bWMXZgtuXUPVKZia6NPPr8aoSv_4-Eb2-55pLeDpQ7HkNvdp6IkavkTK0J513bMcjdbBnm-Xl7mtDZuJvzaTZRDTV2xi2mE79HjNagAr5iakiu2Fpe5Vs35KTomdUh9BTP6A_rvhoVkLJtTUzkp9aN4OwqySg1VoIngfOFjGg87zAFVDUQxgW3YWofRDRNPIw68Br5MqOjhmHZcb078l_0uvxgJ4Y-MLV5kqwuw=&c=6cS-WCy-JbRJ30nBWpUPCtCm07od6eHkd74ODAW51ncUAYaVrIkjOQ==&ch=hCfqOgKJmJjwqnIvbxHimaxIWeSYoZBGS9KZo1eiDrnRctl02qt5Aw==]
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Training Calendar
AFSA Beginning
Fire Sprinkler System
Planning School
Feb 3 - 14, 2014
Check our calendar to view upcoming training.
For details and/or to register, visit the AFSA Calendar
[http://r20.rs6.net/tn.jsp?f=001eOfslZfbUcnd9xoqP9V9OS3W6KiD_KhuUBu7bWMXZgtuXUPVKZia6PHaCSXuYJfzoN_6cI2ttyoPdhQbNDYO46OiB69FJrHcx8zZSpDjsdhbFjOqbjzUr8gslyOaF2AuM_rQxE7tQlYkBwJgZjWC4er9P0217sLoAJgbNlzofeWvKEJMVHTrwuVQzAUKFERusiozISYyNnvsUZf_X3Wlv8V4VLNiAlPgpiC2pErwKAdWadh4kl63msypreO_FJ7IMPhdiL_2GTmHtueOAbkeO1rcPg7Ma4gXPw6t8C643Oz3cES-hsQWDMEejMmzKw7tRxkrq5Ke6nT09Aj9pdEKbQ==&c=6cS-WCy-JbRJ30nBWpUPCtCm07od6eHkd74ODAW51ncUAYaVrIkjOQ==&ch=hCfqOgKJmJjwqnIvbxHimaxIWeSYoZBGS9KZo1eiDrnRctl02qt5Aw==].
e-campus_logo
[http://r20.rs6.net/tn.jsp?f=001eOfslZfbUcnd9xoqP9V9OS3W6KiD_KhuUBu7bWMXZgtuXUPVKZia6LQkByFYiE1ltH3514o299dOi8e3HBgGvioS2UI1zIxqExab2GjngbxrMDlup1MehIHHuRq3pk2nrqM3z5hmaLW75Yeq9ijtn3rDstx985FNYOK9UTN3AGKVXeJQLYEgwA==&c=6cS-WCy-JbRJ30nBWpUPCtCm07od6eHkd74ODAW51ncUAYaVrIkjOQ==&ch=hCfqOgKJmJjwqnIvbxHimaxIWeSYoZBGS9KZo1eiDrnRctl02qt5Aw==]
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Free Subscription to Sprinkler Age
[http://r20.rs6.net/tn.jsp?f=001eOfslZfbUcnd9xoqP9V9OS3W6KiD_KhuUBu7bWMXZgtuXUPVKZia6Jrr0YAL7wGRsFzKChTk6TYrLEbbaOcOMWxArggcApof9OlWRwLtDssNskb_U-3xdFD4ecFQE8j0oVtTuCaj1xjquCYD6iBfvHklReErqekNKRAdJpxhBCq2km6AmBR1TaTb4BuZ7CxzfPMJCnIxP-kv7Wurkes5NAfGXNwXEBEA&c=6cS-WCy-JbRJ30nBWpUPCtCm07od6eHkd74ODAW51ncUAYaVrIkjOQ==&ch=hCfqOgKJmJjwqnIvbxHimaxIWeSYoZBGS9KZo1eiDrnRctl02qt5Aw==]
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Quality Contractor
[http://r20.rs6.net/tn.jsp?f=001eOfslZfbUcnd9xoqP9V9OS3W6KiD_KhuUBu7bWMXZgtuXUPVKZia6BNBFg4p2B5YjiVbrOfbuOk8QDI9CDVQeFe3gjGSEsVq2R4owolN2vA5QZUioZEHEDOfD3zxcyERryHplP6GHCI7zfzINFgQgU2R-6Seu5EyfCicekIPHswmdJBqQ7Wpj6HwHj4Zv9GDAEUaDkVKR7ISIgS5O47Cuh-sQrNZgiY1&c=6cS-WCy-JbRJ30nBWpUPCtCm07od6eHkd74ODAW51ncUAYaVrIkjOQ==&ch=hCfqOgKJmJjwqnIvbxHimaxIWeSYoZBGS9KZo1eiDrnRctl02qt5Aw==]
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Quick Links
Firesprinkler.org
[http://r20.rs6.net/tn.jsp?f=001eOfslZfbUcnd9xoqP9V9OS3W6KiD_KhuUBu7bWMXZgtuXUPVKZia6JKN5sIjbtOxg4dXFdnWRP2du_dfZLBP-0Jhf_Y96nMnH4443MIoC5upbj3ZaVvfVIzyK1p16ctGsbAS0Q9TOeZ6AZJVqsp-fQaA2ozJebHRWlxjC3gIkauSKdoPskYQFA==&c=6cS-WCy-JbRJ30nBWpUPCtCm07od6eHkd74ODAW51ncUAYaVrIkjOQ==&ch=hCfqOgKJmJjwqnIvbxHimaxIWeSYoZBGS9KZo1eiDrnRctl02qt5Aw==]
AFSA Calendar
[http://r20.rs6.net/tn.jsp?f=001eOfslZfbUcnd9xoqP9V9OS3W6KiD_KhuUBu7bWMXZgtuXUPVKZia6PHaCSXuYJfzoN_6cI2ttyoPdhQbNDYO46OiB69FJrHcx8zZSpDjsdhbFjOqbjzUr8gslyOaF2AuM_rQxE7tQlYkBwJgZjWC4er9P0217sLoAJgbNlzofeWvKEJMVHTrwuVQzAUKFERusiozISYyNnvsUZf_X3Wlv8V4VLNiAlPgpiC2pErwKAdWadh4kl63msypreO_FJ7IMPhdiL_2GTmHtueOAbkeO1rcPg7Ma4gXPw6t8C643Oz3cES-hsQWDMEejMmzKw7tRxkrq5Ke6nT09Aj9pdEKbQ==&c=6cS-WCy-JbRJ30nBWpUPCtCm07od6eHkd74ODAW51ncUAYaVrIkjOQ==&ch=hCfqOgKJmJjwqnIvbxHimaxIWeSYoZBGS9KZo1eiDrnRctl02qt5Aw==]
Buyer's Guide
[http://r20.rs6.net/tn.jsp?f=001eOfslZfbUcnd9xoqP9V9OS3W6KiD_KhuUBu7bWMXZgtuXUPVKZia6JKN5sIjbtOxleDHfAyCSfFMcImmNsvSTkTL1urjv0oe-yzwwmeNy20KcULW0qvencvybWHvJq8KsmXMbxlWKALxRKKtrWdfeliUjDvRPYERdWcTqcxcGd294x-MPnXi0I7e7LecbrqRBZcLT3Os9xlNwFN3l9066w==&c=6cS-WCy-JbRJ30nBWpUPCtCm07od6eHkd74ODAW51ncUAYaVrIkjOQ==&ch=hCfqOgKJmJjwqnIvbxHimaxIWeSYoZBGS9KZo1eiDrnRctl02qt5Aw==]
Join AFSA Video
[http://r20.rs6.net/tn.jsp?f=001eOfslZfbUcnd9xoqP9V9OS3W6KiD_KhuUBu7bWMXZgtuXUPVKZia6JKN5sIjbtOxrfBmAvOQ_Fa65xvgWTs_0cWJm5_woKflx4_ZmH_sLhWV759l5_cF7R34EsdbChLI0ypiTjjYJB6_iNLHHkDgA3dHJgBUv2E7KaO13fbm6xkpKzQn5kYyWY-MiSLmX9cIG5mXDesR0bAgrVbs7raguA==&c=6cS-WCy-JbRJ30nBWpUPCtCm07od6eHkd74ODAW51ncUAYaVrIkjOQ==&ch=hCfqOgKJmJjwqnIvbxHimaxIWeSYoZBGS9KZo1eiDrnRctl02qt5Aw==]
National
[http://r20.rs6.net/tn.jsp?f=001eOfslZfbUcnd9xoqP9V9OS3W6KiD_KhuUBu7bWMXZgtuXUPVKZia6Crb8991EvOfB_E92vFD0j7fn7Yoc10sATPeG759bkHRNHI2O0-RfW7FPexxFlGwBORuQAX9EKfVVLdyRbB0YpmX9uMyhyJHMkCyBxLgcitgZsX5_BAsi_Di3teGQDEFtA==&c=6cS-WCy-JbRJ30nBWpUPCtCm07od6eHkd74ODAW51ncUAYaVrIkjOQ==&ch=hCfqOgKJmJjwqnIvbxHimaxIWeSYoZBGS9KZo1eiDrnRctl02qt5Aw==]
Scholarship Contest
[http://r20.rs6.net/tn.jsp?f=001eOfslZfbUcnd9xoqP9V9OS3W6KiD_KhuUBu7bWMXZgtuXUPVKZia6Crb8991EvOfB_E92vFD0j7fn7Yoc10sATPeG759bkHRNHI2O0-RfW7FPexxFlGwBORuQAX9EKfVVLdyRbB0YpmX9uMyhyJHMkCyBxLgcitgZsX5_BAsi_Di3teGQDEFtA==&c=6cS-WCy-JbRJ30nBWpUPCtCm07od6eHkd74ODAW51ncUAYaVrIkjOQ==&ch=hCfqOgKJmJjwqnIvbxHimaxIWeSYoZBGS9KZo1eiDrnRctl02qt5Aw==]
OSHA Alliance
[http://r20.rs6.net/tn.jsp?f=001eOfslZfbUcnd9xoqP9V9OS3W6KiD_KhuUBu7bWMXZgtuXUPVKZia6JKN5sIjbtOxI0t_21f0HPteHj_5O-ZC0X85YOO2MWlF-ukkl3CsRn-iPTBDEiMGyvC927xbhMoIC5gLtbxSgYxHoS87ULAJy2tp0qkv3IZy9wC3LZAaEAuFcaSgblDEburqHbTxvgzIus1s7jqp27hHzGbWNltNKw==&c=6cS-WCy-JbRJ30nBWpUPCtCm07od6eHkd74ODAW51ncUAYaVrIkjOQ==&ch=hCfqOgKJmJjwqnIvbxHimaxIWeSYoZBGS9KZo1eiDrnRctl02qt5Aw==]
Technical Services
[http://r20.rs6.net/tn.jsp?f=001eOfslZfbUcnd9xoqP9V9OS3W6KiD_KhuUBu7bWMXZgtuXUPVKZia6OfGZNvqSEiXTXLHDji393yCgG_aNZFuXq5DnCi0YwszSPAE9anN7Nw3kRSqHiQDr435VW1nKmdDNx-essBA49IZQ0ncgcjBfVnnxIbzBEPLU0l2w--oNlUAHWGPzrUFQswHr2ZZSoMw&c=6cS-WCy-JbRJ30nBWpUPCtCm07od6eHkd74ODAW51ncUAYaVrIkjOQ==&ch=hCfqOgKJmJjwqnIvbxHimaxIWeSYoZBGS9KZo1eiDrnRctl02qt5Aw==]
Informal Interpretation Request Form
[http://r20.rs6.net/tn.jsp?f=001eOfslZfbUcnd9xoqP9V9OS3W6KiD_KhuUBu7bWMXZgtuXUPVKZia6CH28f2gHTqHfWOwi4m0TVebJKUByNl50VIZcFM6tl9C3l_j5mj5CV8ZAqktVqwloDC1AqJvQE4bI_dHpRM7GBu5eCJIy2JuxLTl4Ax1wBcNQoAHamvszaAJn5O8W3w236gE1BpqID11s7p1hPaSW0z1A-04APDnv5-HWLOA_LHC&c=6cS-WCy-JbRJ30nBWpUPCtCm07od6eHkd74ODAW51ncUAYaVrIkjOQ==&ch=hCfqOgKJmJjwqnIvbxHimaxIWeSYoZBGS9KZo1eiDrnRctl02qt5Aw==]
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Join Our Mailing List
[http://visitor.constantcontact.com/email.jsp?m=1102312387686]
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Forward email
http://ui.constantcontact.com/sa/fwtf.jsp?llr=gdnaptcab&m=1102312387686&[email protected]&a=1115958126603
This email was sent to [email protected] by
[email protected].
Update Profile/Email Address
http://visitor.constantcontact.com/do?p=oo&m=001GQO31O13sDTrK9y8bEn5_A%3D%3D&ch=0229c230-354a-11e3-852c-d4ae527b8c41&ca=2821a3f3-386e-48c5-918b-74f984e7ff00
Instant removal with SafeUnsubscribe(TM)
http://visitor.constantcontact.com/do?p=un&m=001GQO31O13sDTrK9y8bEn5_A%3D%3D&ch=0229c230-354a-11e3-852c-d4ae527b8c41&ca=2821a3f3-386e-48c5-918b-74f984e7ff00
Privacy Policy:
http://ui.constantcontact.com/roving/CCPrivacyPolicy.jsp
Online Marketing by
Constant Contact(R)
www.constantcontact.com
American Fire Sprinkler Association | 12750 Merit Drive, Suite 350 | Dallas |
TX | 75251
_______________________________________________
Sprinklernotes mailing list
[email protected]
http://lists.firesprinkler.org/listinfo.cgi/sprinklernotes-firesprinkler.org
