(2) [When the main storage tank is located higher than the day
tank, stop the supply of fuel into the day tank and close the
solenoid valve located on the fuel supply line entering the day
tank] [Stop the supply of fuel into the day tank] when the fuel
level is at 90% of the rated tank capacity.
(3) Activate the "Overfill Fuel Level" alarm at 95% of the rated
tank capacity.
(4) Activate the "Low Fuel Level" alarm at 70% of the rated tank
capacity.
(5) Activate the automatic fuel supply shut-off valve located on
the fill line of the day tank and shut down the fuel pump which
supplies fuel to the day tank at 95% of the rated tank capacity.
The flow of fuel shall be stopped before any fuel can be forced
into the fuel overflow line.
2.3.5.6
Arrangement
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NOTE: Select between integral and self supporting
day tanks. Also, select between applications where
the main fuel storage tank is located above the day
tank and applications where the main fuel storage
tank is located below the day tank. The location of
all tanks, piping, and valves should also be
indicated on the drawings.
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[Integral day tanks may allow gravity flow into the engine. Gravity flow
tanks shall be provided with an internal or external valve located as near
as possible to the shell of the tank. The valve shall close when the
engine is not operating. Integral day tanks shall be provided with any
necessary pumps to supply fuel to the engine as recommended by the
generator set manufacturer. The overflow connection and the fuel supply
line for integral day tanks which do not rely upon gravity flow shall be
arranged so that the highest possible fuel level is below the fuel
injectors.] [Self-supporting day tanks shall either be arranged so that
the fuel level in the day tank remains above the suction port of the engine
driven fuel pump or be provided with a transfer pump to provide fuel to the
engine driven pump. The overflow connection and fuel supply line shall be
arranged so that the highest possible fuel level is below the fuel
injectors.] [When the main fuel storage tanks are located below the day
tank, a check valve shall be provided in the fuel supply line entering the
day tank.] [When the main fuel storage tanks are located above the day
tank, a solenoid valve shall be installed in the fuel supply line entering
the day tank. The solenoid valve shall be in addition to the automatic
fuel shut off valve.] The fuel supply line from the day tank to the
manufacturer's standard engine connection shall be welded pipe.
2.3.6
Fuel Supply System
The fuel supply from the main storage of fuel to the day tank shall be as
specified in Section 13202 FUEL STORAGE SYSTEMS.
2.4
LUBRICATION
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SECTION 16263A
Page 41
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