Tim is correct, and I caution those on this forum not to confuse
"bracing" with "restraint" as -13 clearly identifies them as two
different approaches. From the '16, §9.3.6.1 identifies restraint as a
lesser degree of resisting loads. This is repeated in the '22 in §18.6.1.
It's important to note that in both editions the discussion of restraint
is in the sections dealing with seismic protection.
As I am a member of the hanging and bracing committee of NFPA please see
the disclaimer below.
sincerely,
*Ken Wagoner, SET*
*Parsley Consulting
500 West Mechanic Street
Harrisonville, Missouri 64701-2235*
*Phone: (760) 745-6181 *
*Visit the website
<https://linkprotect.cudasvc.com/url?a=http%3a%2f%2fwww.parsleyconsulting.com%2f&c=E,1,Y5zKJKPEh1mBEBqSR-VE9cUKl5y-eyP8BpvmE_5j9ZqW2eJbNphYzrCMBZ-2YuX6d-RRkHI4gQ1FV-cvOeCfRC58uZS9NiToZv2mx7909oCqLvCW_n5hDHeK&typo=1>
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 and the Hanging and
Bracing for Fire Suppression Systems 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 10/19/2023 12:13 PM, [email protected] wrote:
2013 edition of *NFPA 13, 9.3.6.6*, Sprigs 4’-0 or longer shall be
restrained….
Regards,
*G. Tim Stone*
*/G. Tim Stone Consulting, LLC/*
*NICET Level III Engineering Technician*
*Fire Protection Sprinkler Design*
*and Consulting Services*
* 117 Old Stage Rd. - Essex Jct., VT. 05452*
*CELL: (802) 373-0638 *
[email protected]
*From:* Jeff Werre <[email protected]>
*Sent:* Thursday, October 19, 2023 12:58 PM
*To:* Discussion list on issues relating to automatic fire sprinklers
<[email protected]>; George Medina Jr.
<[email protected]>
*Subject:* [Sprinklerforum] Re: 1" Armover Restraint
Where does the requirement to brace a sprig up at 4 feet come from?
Thank you-
**
*Jeff Werre, CFM *
*Plan Review and Inspection Specialist*
Development Services
City of Goodyear, Arizona
1900 North Civic Square
Goodyear, AZ 85395
*c*602 316-0704
*w*_goodyearaz.gov <http://www.goodyearaz.gov/>_
*e*[email protected] <mailto:[email protected]>_
__
*/The Accela Citizen Access portal (ACA) is coming to the City of
Goodyear./*
*/The new permit software implementation is planned for Early 2024!/*
/Visit the Development Center
<https://www.goodyearaz.gov/business/development-center> for Resources
and Access to the Electronic Plan Review (EPR) system./
/If you need technical assistance, send an email to
[email protected] <mailto:[email protected]>/
__
*From:* Bob Caputo <[email protected]>
*Sent:* Thursday, October 19, 2023 9:41 AM
*To:* Discussion list on issues relating to automatic fire sprinklers
<[email protected]>; George Medina Jr.
<[email protected]>
*Subject:* [Sprinklerforum] Re: 1" Armover Restraint
*⚠** This email arrived from an external source - Please exercise
caution when opening any attachments or clicking on links *
George,
An arm over to a single sprinkler is defined as an arm over whereas
when two sprinklers are served, it’s considered a branch line. Branch
lines require restraint. If the arm over is to a sprig up longer that
4ft, the sprig requires restraint.
I am not aware of a requirement to restrain the arm over (but if it’s
long enough….)
I’m sitting in an airport without a book so there might be other opinions
Bob Caputo
On Thu, Oct 19, 2023 at 11:35 AM George Medina Jr.
<[email protected]> wrote:
I have an armover that is 2'-4" in length. The SEOR is requiring
me to put a diagonal brace on the branch line that the armover is
supplied from and a restraint on the armover ( I had left a
branchline restraint detail from my template and I probably should
not have left it on with these small aromovers) When is an armover
required to be restrained (if at all?). Could not find any
specific length in NFPA-13 (2016 ed.)
George Medina Jr.
Sr. Fire Sprinkler Designer
SINGLETON FIRE PROTECTION INC.
Office: (818) 252-5744
Cell: (323) 906-5701
Business Hours: 9:00am-5:00pm
_________________________________________________________
SprinklerForum mailing list:
https://lists.firesprinkler.org/list/sprinklerforum.lists.firesprinkler.org
To unsubscribe send an email to
[email protected]
_________________________________________________________
SprinklerForum mailing list:
https://lists.firesprinkler.org/list/sprinklerforum.lists.firesprinkler.org
To unsubscribe send an email [email protected]
_________________________________________________________
SprinklerForum mailing list:
https://lists.firesprinkler.org/list/sprinklerforum.lists.firesprinkler.org
To unsubscribe send an email to [email protected]
