Cliff,
You've pointed out a conclusion on my part that was not in what
Rocci posted. He didn't say it was a part of a standpipe. That was a
supposition on my part.
If it were a part of a sprinkler system, such as a line feeding a
hose valve in rack storage, the horizontal portions would not require
bracing, in my perspective, as they simply aren't mains [longitudinal],
and aren't branch lines [lateral].
Now, if they had an elevation change exceeding 3'-0", that pipe
would be regarded as a "riser", by 3.5.9, it would require a 4-way brace
at the top per 9.3.5.8.1.
It also might fall into the need for flexible couplings per
9.3.2.3.1(1).
Good call. And I suppose I should acknowledge Craig's question,
and note that I made the conclusion that since Rocci is in California,
where almost everything has to be protected from earthquake damage, AND
he asked the question, that seismic protection was necessary on his system.
sincerely,
*Ken Wagoner, SET
*Parsley Consulting***
*350 West 9th Avenue, Suite 206
*Escondido, California 92025
*****Phone 760-745-6181*
Visit our website <http://www.parsleyconsulting.com/> ***
On 09/21/2016 9:10 AM, Cliff Whitfield wrote:
Ken,
If this is an 1½” hose line in an NFPA 13 condition (which Rocci
didn’t actually state but I’m assuming it is), then the definition of
‘branch line’ in NFPA 14 would not apply. If that is the case, would
this still be considered a ‘branch line’ or does it become a ‘feed main’?
Cliff Whitfield
*From:*Sprinklerforum
[mailto:sprinklerforum-boun...@lists.firesprinkler.org] *On Behalf Of
*Parsley Consulting
*Sent:* Wednesday, September 21, 2016 12:06 PM
*To:* sprinklerforum@lists.firesprinkler.org
*Subject:* Re: small hose connections
Rocci,
Glad to see you made it back safely from Nashville, and it was
great to meet there and put a face with the name.
By the definition in section 3.3.2 of NFPA 14 [2013 ed], the pipe
you describe is a "branch line." Section 6.1.2.5 of that document
advises that you need to follow NFPA 13 to provide protection against
damage from earthquakes.
Lateral bracing for that line is not required per NFPA 13 [2013]
9.3.5.5.1, as it is not a branch line 2½" or larger.
Longitudinal bracing for that line is not required per 9.5.6.1 as
it is not a feed or cross main.
My opinion only. Please see the disclaimer below.
sincerely,
*Ken Wagoner, SET
**Parsley Consulting
350 West 9th Avenue, Suite 206
Escondido, California 92025
**Phone 760-745-6181
**Visit our website <http://www.parsleyconsulting.com/> *
*IMPORTANT NOTICE: This correspondence is not a Formal Interpretation
issued pursuant to NFPA Regulations. Any opinion expressed is the
personal opinion of the author and does not necessarily represent the
official position of the NFPA or its Technical Committees. In
addition, this correspondence is neither intended, nor should it be
relied upon, to provide professional consultation or services
It should be noted that the above is my opinion as a member of the
NFPA Automatic Sprinkler System Hanging and Bracing Committee in
accordance with the NFPA Regulations Governing Committee Projects and
should therefore not be considered, nor relied upon, as the official
position of the NFPA or its Committees*
On 09/21/2016 8:17 AM, Rocci Cetani 3 wrote:
Do I need to earthquake brace my 1½” feed for hose connections?
*/Rocci Cetani III, /**CET*
/Designer/
/Water-Based Fire Protections Systems Layout, Nicet Level III/
*//*
*Northern California Fire Protection Services Inc.*
16840 Joleen Way Bldg. A
Morgan Hill, CA 93037
P-(408) 776-1580 EXT.111
F-(408) 776-1590
roc...@norcalfire.com <mailto:roc...@norcalfire.com>
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