regulators shall be followed. Covers shall be replaced tightly after
completing examinations and tests.
3.20.6
Regulator Electrical Tests
Supply voltage and input tap shall correspond. With the loads
disconnected, regulator shall be energized and the open circuit protector
observed to ensure that it de-energizes the regulator within 3 seconds.
After testing circuits for open-circuit and ground faults and corrections,
if any, and after determining that lamps are serviceable and in place, the
loads shall be connected for each circuit or combination of circuits to be
energized to the regulator and the voltage and current measured
an accuracy of plus or minus one percent full scale. Readings shall be
recorded during the day and night in order to obtain the average supply
voltage. Output current for each brightness tap shall be within plus or
minus 2 percent of meter full scale of the nameplate values after making
necessary correction in the supply voltage. Late model regulators have
automatic supply voltage correction in lieu of input taps, and output
current does not change as supply voltage varies. When output current on
full intensity deviates from nameplate value by more than 2 percent of
meter full scale and the regulator is not overloaded, internal adjustment
shall be checked as described on regulator instruction plate. Since
adjustment may be rather delicate, a deviation shall be allowed of up to
plus or minus 5 percent of meter full scale on taps 1 through 4 before
attempting to readjust the regulator.
3.20.7
Final Operating Test
After completion of installations and the above tests, the circuits,
control equipment, and lights covered by the contract shall be demonstrated
to be in good operating condition. Each switch in the helipad and/or
control tower lighting panels shall be operated so that each switch
position is engaged at least twice. During this process, lights and
associated equipment shall be observed to determine that each switch
properly controls corresponding circuit. Telephone or radio communication
shall be provided between the operator and the observers. Tests shall be
repeated from the alternate control station, from the remote control
points, and again from the local control switches on the regulators. Each
lighting circuit shall be conducted by operating the lamps at maximum
brightness for not less than 30 minutes. At the beginning and at the end
of this test, the correct number of lights shall be burning at full
brightness. [One] [_____] day and [one] [_____] night operating test shall
be conducted for the Contracting officer. The Contractor shall submit
field test reports written, signed and provided as each circuit or
installation item is completed. Field tests shall include
resistance-to-ground and resistance between conductors, and continuity
measurements for each circuit. For each series circuit the input voltage
and output current of the constant current regulator at each intensity
shall be measured. For multiple circuits the input and output voltage of
the transformer for each intensity setting shall be measured. A visual
inspection of the lights operation, or of the markings appearance, or of
the installation of fixtures or units installed shall be reported.
3.21
FINISHING
Painting required for surfaces not otherwise specified and finish painting
of items only primed at the factory, shall be as specified in Section 09900
PAINTS AND COATINGS.
SECTION 16525A
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