Jerry,
Although I'm slightly unclear over what you're being told I would make
sure that whoever is providing that information to you has read
9.2.1.3.1 of the '16 edition of -13:
9.2.1.3.1 Sprinkler piping shall be substantially supported from the
building structure, *which must
Gary,
I have to disagree with your position. Reading from the '16 edition of
NFPA 13D, §7.4.1 states that, /"Listed pipe shall be supported in
accordance with any listing limitations./" What I've read from most of
the manufacturer's of CPVC is that the support criteria they've
developed are
Tom,
I did not see this post until today, so I apologize for the delayed
response. I'll share my thoughts on what you've observed.
No, there is nothing in NFPA 13D regarding hangers for sprinkler system
piping not being allowed to be used for non-system components, as there
is in -13. As
I've been away from the office all day for a medical issue and missed
all the exchanges.
The mistaken position taken by many - AHJ's and Contractors alike - is
that the two most commonly used materials for UG service of a fire
sprinkler system are C900 PVC and Ductile Iron pipe. Those two
Bob,
I'm not sure if 2 ft² can be overlooked by your AHJ, however when I read
your text the provisions of 8.15.8.1.1 came to mind that any bathroom >
55 ft² require a sprinkler, except that smaller bathrooms require them
if they are in a limited care facility or open directly on to a public
nse.proofpoint.com/v2/url?u=http-3A__bvssystemsinc.com_=DwMFAw=wn3mZQLIuInh2ClcJ0_DIA=Z_2A85VL7AQzoqudh6uOyS3bn8etxB7nLN8OBJwQd9A=_i-3gtRgUe3C3_NF6JEVrRsp03qeNc1whW5ctjjD9go=Eehr8EULwOEFVj7mx_BUUA9FU4i6_xpQB4y6xdkenyc=>
*From:* Sprinklerforum <mailto:sprinklerforum-boun...@lists.firesprinkler.org>
Brian,
I'll be happy to share my perspective for you.
* Review the definition of miscellaneous storage in the paragraph you
quoted. It sounds to me as though you've described a building where
the storage of 42,000 ft² _*is not*_ "incidental" to other use of
the building, _*is not*_
Per the 2019 edition of NFPA 20:
/4.7.1* Fire pumps shall be dedicated to and listed for fire
protection service.
/
The identical language was contained in the 2013 and 2016 editions.
It would be a good idea to be familiar with the term "listed" as defined
in NFPA 20 [also 2019
Apparently I missed the designation "UL" in your question, and thanks to
Matt and Craig for providing clarity.
So, the answer is "listed", yes, "UL", not necessarily.
sincerely,
*Ken Wagoner, SET
*Parsley Consulting***
*350 West 9th Avenue, Suite 206
*Escondido, California 92025
*Phone
Bob,
My thought is that it's asking for a way to evaluate the one variable
which can't be changed - elevation gain or loss.
Just my opinion,
*Ken Wagoner, SET
*Parsley Consulting***
*350 West 9th Avenue, Suite 206
*Escondido, California 92025
*Phone 760-745-6181*
Visit the website
Tagging on to the point Travis raised regarding the potential cost of a
meter upsize.
There is a water purveyor in San Diego County which has established a
_*minimum*_ meter size of 2" for a sprinkler system designed to NFPA 13,
with the potential for even larger devices should the demand
Permit me to endorse and support Steve's comment I've highlighted below.
In the course of doing 3rd party plan review for various AHJ's in San
Diego county I've seen numerous sets of plans as prepared by the staff
at Protection Design. As a result I've become familiar with the style
and
Owen,
Let me offer a couple of thoughts here.
First, please be aware that that figure of 26 gpm for two sprinklers
flowing makes a couple of dubious assumptions. If the layout used
horizontal sidewall sprinklers and covered an area 14' wide with a throw
of 26', the required flow is 42 gpm
I have to agree with the others Owen. Those programs which are
integrated provide so much more flexibility and functionality than due
two separate stand-alone programs.
There are two caveats here however.
The first is noting your criteria that the solution be "simple and
inexpensive if
Bob,
You're certainly welcome, and that is pretty much what most contractors
do when they submit plans.
Regarding concrete. In the cycle for the 2016 edition the application of
the prying factor for anchors in concrete moved from annex material, and
thus advisory, to the body of the
Bob,
I can only give you my thoughts. From what I understood in some of the
committee meetings the maximum load weights shown in table 9.3.5.12.2(h)
were based on the diameter of the bolt, and the length of that bolt in
the timber, which had been tested.
Several times I've run across
Ask the correct question, Owen.
Is the "compartment" one with a beamed ceiling with sprinklers at the
bottom of the beams, or beamed and sloped with sprinklers at the bottom
of the beams, or in the pockets? And, if any of the above are true is
the compartment of greater than 600 ft²?
It
The most I've seen is from A.3.3.251:
/Shop Drawings. Shop drawings typically include the property
location, scaled//floor plans, equipment wiring details, typical
equipment installation details, riser details, conduit///conductor
size, and routing information needed to install a
And to add on to what Steve noted - there are always four considerations
- at least - when protecting storage. The ones I use:
1. What is being stored?
* If it's plastic, is it in cartons or exposed?
2. How is it being stored? Racks? (single, double, multiple?) Pallets?
Shelf?
*
Maybe we could hire a bunch of homeless people to run through a building
and flush all the toilets at the same time. Sort of a man made undertow?
Just thinking...
*Ken Wagoner, SET
*Parsley Consulting***
*350 West 9th Avenue, Suite 206
*Escondido, California 92025
*Phone 760-745-6181*
David,
I'm delighted I waited to answer him. You're entirely correct, and that
is exactly what I was going to say.
Have a great weekend my friend,
*Ken Wagoner, SET
*Parsley Consulting***
*350 West 9th Avenue, Suite 206
*Escondido, California 92025
*Phone 760-745-6181*
Visit the website
Jerry,
I have to admit I'm a bit confused. Why are you longitudinally bracing
branch lines? That certainly isn't required by NFPA 13. Per §9.3.5.6.1
of the '16 edition, longitudinal bracing is only required for feed and
cross mains.
As I am a member of the hanging and bracing committee,
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