Karen,
What you are suggesting meets the intent of the standard, in my opinion,
even though it says to interconnect them at the bottom.
As long as you have established a separate and distinct standpipe system, it
should not matter if you tie-in on the first floor or third floor for the
interconnection. Once the standpipe system has been established, you can
then utilize it for combination systems via control valves, check valves and
flow switches.
One common mistake I have seen is trying to take sprinkler protection from
bulk standpipe mains, prior to interconnection with other standpipes.
Jeff Hewitt, PE, SET, MSFPE
Bi-State Fire Protection Corporation
----- Original Message -----
From: "Karen Purvis" <[EMAIL PROTECTED]>
To: <[email protected]>
Sent: Tuesday, August 14, 2007 9:39 AM
Subject: interconnection of standpipes
I have not been able to find a good answer to this question so I turn to
my
fellow forum readers. When interconnecting standpipes NFPA 14 a.7.5 says
it
should occur as close as possible to the source of supply as possible. If
I
have four pipes and three can be connected on the first floor but the
third
one needs to go over an exposed area can it connect on the third floor to
the closest pipe or is there a better way of connecting them.
Karen Purvis
Designer
Facility Systems Consultants
714 S Gay St
Knoxville, TN 37902
ph.865-246-0164
fax 865-246-1084
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