3.10
HANDHOLES
The exact locations shall be determined after carefully considering the
locations of other utilities, grading, and paving. Exact locations shall
be approved before construction is started.
3.10.1
Construction
Handholes shall be constructed as indicated on drawings, including
appurtenances. Top, walls, and bottom shall consist of reinforced
concrete. Walls and bottom shall be of monolithic construction. Concrete
shall be 21 MPa 3000 psi at 28 days. Precast concrete handholes having the
same strength and inside dimensions as cast-in-place concrete handholes may
be used. In paved areas, the top of entrance covers shall be flush with
the finished surface of the paving. In unpaved areas, the top of entrance
covers shall be approximately 13 mm 1/2 inch above the finished grade.
Where finished grades are in cut areas, unmortared brick shall be installed
between the top of handhole and entrance frame to temporarily elevate the
entrance cover to existing grade level. Where duct lines enter walls, the
sections of duct may be cast in the concrete or may enter the wall through
a suitable opening. The openings around entering duct lines shall be
caulked tight with lead wool or other approved material.
3.10.2
Appurtenances
The following appurtenances shall be provided for each handhole.
3.10.3
Cable Pulling-In Irons
A cable pulling-in iron shall be installed in the wall opposite each duct
line entrance.
3.10.4
Ground Rods
In each handhole, at a convenient point close to the wall, a ground rod
conforming to paragraph GROUNDING shall be driven into the earth before the
floor is poured; approximately 100 mm 4 inches of the ground rod shall
extend above the floor after pouring. When precast concrete units are
used, the top of the ground rod may be below the floor; a No. 1/0 AWG
copper ground conductor shall be brought inside through a watertight sleeve
in the wall.
3.11
POLE INSTALLATION
Pole lengths shall provide a luminaire mounting height of [9.1] [10.7]
[12.2] [_____] m [30] [35] [40] [_____] feet. Luminaire mounting height
may be increased by the height of the transformer base where required.
Electrical cabling shall be provided to the light pole as specified in
Section [_____]. The mount interfaces shall have ac power connected, and
the pole wiring harness shall be connected to the luminaire. Light poles
shall not be installed outside the site or inside the perimeter zone.
[CCTV light poles shall be installed inside the secure area and 1.5 m 5 feet
from the inner perimeter fence.] [Security system light poles shall be
installed inside the secure area.] Pole installation shall conform to the
manufacturer's recommendations, NFPA 70, and IEEE C2. Poles shall be set
straight and plumb.
SECTION 16528A
Page 38
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