junction box in all pavements.
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Light bases shall be FAA AC 150/5345-42 Type [L-867] [L-868] [L-869]
[_____]. Steel bases, Class 1, Size [A] [B] [C] shall be provided as
indicated or as required to accommodate the fixture or device installed
thereon if diameter is not shown. Base plates, cover plates, and adapter
plates shall be provided to accommodate various sizes of fixtures. Bolts
shall be stainless steel.
2.1.11
Sealant for Fixtures and Wires in Drilled Holes or Saw Kerfs
The sealant shall be in accordance with FAA AC 150/5370-10, Type P-606. Use
FAA AC 150/5370-10, Type P-606 sealant for use in asphaltic concrete (AC)
or Portland cement concrete (PCC) pavement compatible with AC pavement and
having a minimum elongation of 50 percent. Formulations of Type P-606
which are compatible with PCC pavement only are prohibited.
2.1.12
Constant Current Regulator
The regulator shall be FAA AC 150/5345-10, [Type L-828, without monitoring]
[Type L-829 with monitoring] system and with ratings as indicated.
Regulators shall operate on [60] [50] Hz, have internal primary switch
[included] [excluded], have input voltage of [240] [480] [2400] [_____] and
be controlled by 120-volt external control voltage. [Three] [Five] [_____]
brightness steps shall be provided. [Monitors shall be provided as
indicated.]
2.1.13
Lamps and Filters
Lamps shall be of size and type indicated, or as required by fixture
manufacturer for each lighting fixture required under this contract.
Filters shall be of colors as indicated and conforming to the specification
for the light concerned or to the standard referenced.
2.1.14
Sump Pumps for Manholes and Vaults
Sump pumps shall be submersible type with a capacity for not less than
[_____] L/min gal/min at a total dynamic head of [3.1] [_____] [10] [_____]
feet. The motor shall include automatic thermal overload protection. Each
pump shall have an internal magnetic float switch, stainless steel shaft,
bronze impeller, and cast iron motor housing and volute. The cable shall
be continuous and of a waterproof type with watertight plug of sufficient
length to include slack and allow connection to receptacle shown.
2.1.15
Circuit Breakers and High-Voltage Switches
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NOTE: Circuit breakers and high-voltage switches
should normally be rated at 150 percent of the full
load current rating of the transformer or the device
protected. Do not use manually-operated fuse
cutouts.
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Circuit breakers and high-voltage switches shall be NEMA AB 1 type or
approved by UL 489. Switchgear for use in manholes and underground vaults
shall be subway type. Cutouts shall be rated for [_____] volts, [_____]
amperes, [_____] kV BIL. Hermetically sealed cutouts shall be provided
SECTION 16526A
Page 20
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