3.3
INSPECTION BY FIRE PROTECTION SPECIALIST
The Fire Protection Specialist shall inspect the sprinkler system
periodically during the installation to assure that the sprinkler system is
being provided and installed in accordance with the contract requirements.
The Fire Protection Specialist shall witness the preliminary and final
tests, and shall sign the test results. The Fire Protection Specialist,
after completion of the system inspections and a successful final test,
shall certify in writing that the system has been installed in accordance
with the contract requirements. Any discrepancy shall be brought to the
attention of the Contracting Officer in writing, no later than three
working days after the discrepancy is discovered.
3.4
ABOVEGROUND PIPING INSTALLATION
3.4.1
Protection of Piping Against Earthquake Damage
The system piping shall be protected against damage from earthquakes.
Seismic protection shall include flexible and rigid couplings, sway bracing,
seismic separation assemblies where piping crosses building seismic
separation joints, and other features as required by NFPA 13 for protection
of piping against damage from earthquakes.
3.4.2
Piping in Exposed Areas
Exposed piping shall be installed so as not to diminish exit access widths,
corridors or equipment access. Exposed horizontal piping, including drain
piping, shall be installed to provide maximum headroom.
3.4.3
Piping in Finished Areas
In areas with suspended or dropped ceilings and in areas with concealed
spaces above the ceiling, piping shall be concealed above ceilings. Piping
shall be inspected, tested and approved before being concealed. Risers and
similar vertical runs of piping in finished areas shall be concealed.
3.4.4
Pendent Sprinklers
Drop nipples to pendent sprinklers shall consist of minimum 25 mm 1 inch
pipe with a reducing coupling into which the sprinkler shall be threaded.
Hangers shall be provided on arm-overs to drop nipples supplying pendent
sprinklers when the arm-over exceeds 300 mm 12 inches. Where sprinklers
are installed below suspended or dropped ceilings, drop nipples shall be
cut such that sprinkler ceiling plates or escutcheons are of a uniform
depth throughout the finished space. The outlet of the reducing coupling
shall not extend more than 25 mm 1 inch below the underside of the ceiling.
On pendent sprinklers installed below suspended or dropped ceilings, the
distance from the sprinkler deflector to the underside of the ceiling shall
not exceed 100 mm 4 inches. Recessed pendent sprinklers shall be installed
such that the distance from the sprinkler deflector to the underside of the
ceiling shall not exceed the manufacturer's listed range and shall be of
uniform depth throughout the finished area.
3.4.4.1
Pendent Sprinkler Locations
Pendent sprinklers in suspended ceilings shall be a minimum of 150 mm 6
inches from ceiling grid.
SECTION 13930A
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