pack space with mineral wool insulation. Seal space at both ends of the
sleeve or core-drilled hole with plastic waterproof cement which will dry
to a firm but pliable mass, or provide a mechanically adjustable segmented
elastomeric seal. In fire walls and fire floors, seal both ends of pipe
sleeves or core-drilled holes with UL listed fill, void, or cavity material.
a.
Sleeves in Masonry and Concrete Walls, Floors, and Roofs: Provide
hot-dip galvanized steel, ductile-iron, or cast-iron sleeves.
Core drilling of masonry and concrete may be provided in lieu of
pipe sleeves when cavities in the core-drilled hole are completely
grouted smooth.
b.
Sleeves in Other Than Masonry and Concrete Walls, Floors, and
Roofs: Provide 26 gage galvanized steel sheet.
2.5
ESCUTCHEON PLATES
Provide split hinge metal plates for piping entering walls, floors, and
ceilings in exposed spaces. Provide polished stainless steel plates or
chromium-plated finish on copper alloy plates in finished spaces. Provide
paint finish on metal plates in unfinished spaces.
PART 3
EXECUTION
3.1
INSTALLATION
Installation, workmanship, fabrication, assembly, erection, examination,
inspection, and testing shall be in accordance with NFPA 13, except as
modified herein. Install piping straight and true to bear evenly on
hangers and supports. Do not hang piping from plaster ceilings. Keep the
interior and ends of new piping and existing piping affected by
Contractor's operations thoroughly cleaned of water and foreign matter.
Keep piping systems clean during installation by means of plugs or other
approved methods. When work is not in progress, securely close open ends
of piping to prevent entry of water and foreign matter. Inspect piping
before placing into position. Provide Teflon pipe thread paste on male
threads.
3.1.1
Electrical Work
Provide electrical work associated with this section under Section 16402
INTERIOR DISTRIBUTION SYSTEM, except for control [and fire alarm] wiring.
[Provide fire alarm system under Section 13852N INTERIOR FIRE ALARM
SYSTEM.] Provide control [and fire alarm] wiring[, including connections
to fire alarm systems,] under this section in accordance with NFPA 70.
Provide wiring in rigid metal conduit or intermediate metal conduit, except
electrical metallic tubing conduit may be used in dry locations not
enclosed in concrete or where not subject to mechanical damage.
3.1.2
Disinfection
Disinfect the new water piping and existing water piping affected by
Contractor's operations in accordance with AWWA C651. Fill piping systems
with solution containing minimum of 50 milligram per kilogram (mg/kg) parts
per million (ppm) of available chlorine and allow solution to stand for
minimum of 24 hours. Flush solution from the systems with domestic water
until maximum residual chlorine content is within the range of 0.2 to 0.5
mg/kg ppm, or the residual chlorine content of domestic water supply.
Obtain at least two consecutive satisfactory bacteriological samples from
SECTION 13930N
Page 15
Previous Page
