calculations shall be based upon the Hazen-Williams formula with a "C"
value of 120 for steel piping, 150 for copper tubing, 140 for new
cement-lined ductile-iron piping, and [100] [_____] for existing
underground piping. [Hydraulic calculations shall be based on operation of
the fire pump(s) provided in Section 13920 FIRE PUMPS]
1.2.2
Sprinkler Coverage
Sprinklers shall be uniformly spaced on branch lines. In buildings
protected by automatic sprinklers, sprinklers shall provide coverage
throughout 100 percent of the building. This includes, but is not limited
to, telephone rooms, electrical equipment rooms, boiler rooms, switchgear
rooms, transformer rooms, and other electrical and mechanical spaces.
Coverage per sprinkler shall be in accordance with NFPA 13, but shall not
exceed 9 square m 100 square feet for extra hazard occupancies, 12 square m
130 square feet for ordinary hazard occupancies, and 21 square m 225 square
feet for light hazard occupancies. Exceptions are as follows:
1) Facilities that are designed in accordance with NFPA 13R and NFPA 13D.
2) Sprinklers may be omitted from small rooms which are exempted for
specific occupancies in accordance with NFPA 101.
1.3
COORDINATION OF TRADES
Piping offsets, fittings, and any other accessories required shall be
furnished as required to provide a complete installation and to eliminate
interference with other construction. Sprinkler shall be installed over
and under ducts, piping and platforms when such equipment can negatively
effect or disrupt the sprinkler discharge pattern and coverage.
1.4
DELIVERY AND STORAGE
All equipment delivered and placed in storage shall be housed in a manner
to preclude any damage from the weather, humidity and temperature
variations, dirt and dust, or other contaminants. Additionally, all pipes
shall either be capped or plugged until installed.
1.5
FIELD MEASUREMENTS
The Contractor shall become familiar with all details of the work, verify
all dimensions in the field, and shall advise the Contracting Officer of
any discrepancy before performing the work.
1.6
SUBMITTALS
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NOTE: Submittals must be limited to those necessary
for adequate quality control. The importance of an
item in the project should be one of the primary
factors in determining if a submittal for the item
should be required.
A "G" following a submittal item indicates that the
submittal requires Government approval. Some
submittals are already marked with a "G". Only
delete an existing "G" if the submittal item is not
complex and can be reviewed through the Contractor's
Quality Control system. Only add a "G" if the
SECTION 13930A
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