Download Sample Specification - ADB Airfield Solutions

SAMPLE SPECIFICATION
Note: Modify the items in italics according to your specific job requirements.
ITEM L-150 INSTALLATION OF PA-4 POWER ADAPTERS
DESCRIPTION
150-1.1 This item shall consist of furnishing and installing the PA-4 power adapter in
accordance with these specifications.
This item shall also include all wire and cable connections, the furnishing and installing
of all necessary base cans, conduits and fittings. It shall also include the testing of the
installation and all incidentals necessary to place the lights in operation as completed
units to the satisfaction of the Engineer.
EQUIPMENT AND MATERIALS
150-2.1 POWER ADAPTERS. The power adapter shall be as manufactured by ADB
Airfield Solutions (www.adb-air.com) or approved equal.
150-2.2 EQUIPMENT SUPPLIED. Power adapters shall be supplied for the total
quantity as shown on the plans. Each lot shipment of power adapters shall include two
Instruction Manuals.
150-2.3 POWER ADAPTER. The PA-4 power adapter shall be able to provide
maintenance-free power for the {L-849 Xenon REIL system} {L-806 incandescent
lighted wind cone} {L-807 incandescent lighted wind cone} from the series circuit.
The PA-4 power adapter shall provide regulated 120VAC, 60Hz {120/240V AC} at 670
VA when connected to an airport 2.8A to 6.6A(5-step) {4.8A to 6.6A (3-step)} {8.5A to
20A (5-step)} series circuit. The PA-4 power adapter shall be oil-filled for better heat
distribution and inherently self-protecting in that the output voltage will drop if a fault
occurs. An internal tap shall be available on the PA-4 to reduce the loading on a 3-step
CCR by 15%. The top shall be easily removed to replace internal fuses if necessary. The
top shall be sealed using a waterproof gasket. {The PA-4 power adapter shall have a
current sensing option that eliminates the need for a separate L-830 isolation
transformer when using ADB Airfield Solutions L-849 Xenon REIL system. An extra lead
shall be provided for the current sensing connection.}
PA-4 power adapters shall be watertight and maintenance-free, allowing direct earth
burial {installation on the surface of the ground} {in a 16-inch diameter by 24-inch deep
L-867D base}.
CONSTRUCTION METHODS
150-3.1 PLACING THE POWER ADAPTER. The contractor shall furnish and install
each power adapter as specified in the proposal and shown in the plans. The primary leads
on the power adapter shall be connected directly into the series circuit.
150-3.2 TESTS. All power adapters shall be fully tested by continuous operation for not
less than 24 hours as a completed system prior to acceptance. The test shall include
operating the constant current regulator in each step not less than 10 times at the
beginning and end of the 24-hour test. The rated output voltage shall be present at the
beginning and end of the test. The load placed on the output of the power adapter shall
operate properly at each constant current regulator step setting.
METHOD OF MEASUREMENT
150-4.1 MEASUREMENT. The quantity of power adapters to be paid for under this
item shall be for the total quantity of power adapters installed and two Instruction
Manuals (per lot) and accepted as completed units, in place, ready for operation.
BASIS FOR PAYMENT
150-5.1 PAYMENT. Payment will be made at the contract unit price for the completed
total quantity of power adapters installed, in place by the Contractor, and accepted by the
Engineer. This price shall be full compensation for furnishing all materials and for all
preparation, assembly, and installation of these materials, and for all labor, equipment,
tools, and incidentals necessary to complete this item.
Payment will be made under:
Item L-150-5.1
PA-4 power adapters, in Place—per each
END OF ITEM L-150