Led l-849 style a/C/e reil – sample specification




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LED L-849 STYLE A/C/E REIL – SAMPLE SPECIFICATION
Note: Modify the items in italics according to your specific job requirements.
ITEM L-150 INSTALLATION OF LED {L-849A} {L-849C} {L-849E} REIL
DESCRIPTION
150-1.1 This item shall consist of furnishing and installing the uni-directional LED L-849 Runway End Identification Lights in accordance with these specifications.
This item shall also include all wire and cable connections, the furnishing and installing of all necessary conduits and fittings and all necessary mounting structures. 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 L-849 STYLE {A} {C} {E}. The LED {L-849 Style A} {L-849 Style C} {L-849 Style E} REIL shall conform to the requirements of FAA Advisory Circular 150/5345-51 “Specification for Runway Edge Identifier Lights” and FAA LED “Engineering Brief No. 67” (current edition). The LED L-849 REIL shall be ETL certified. The LED L-849 REIL shall be as manufactured by ADB Airfield Solutions (www.adb-air.com) or approved equal.
{If required by the airport authority, a Return on Investment (ROI) and Life Cycle Cost (LCC) analysis shall be calculated to validate the benefit of the LED fixture in comparison to the equivalent incandescent technology.}
150-2.2 EQUIPMENT SUPPLIED. The LED L-849 REIL system shall be supplied for the total quantity as shown on the plans. Each LED L-849 REIL system shall include one Instruction Manual. The manufacturer shall also have a downloadable electronic version of the manual available on their web site.

The LED REIL system shall consist of the following classifications:




  1. Type.

{ L-849V – REIL powered by airport voltage power source.
or
L-849I – REIL powered by an airfield series circuit.}



  1. Style.

{ Style A - Unidirectional, high intensity, one brightness step.
or


Style C - Unidirectional, low intensity, one brightness step B – powered.
or
Style E - Unidirectional, three brightness steps. }

The LED REIL system must operate at temperatures from –40 to +131°F (–40 to +55°C).
150-2.3 REIL SYSTEM. The LED L-849 Style A {L-849 Style C} {L-849 Style E} REIL shall provide a flashing visual indication to pilots of the runway threshold during an approach. To insure reduced energy consumption, reduced maintenance requirements and elimination of costly xenon lamp replacement, the L-849 fixture light source shall be a Light Emitting Diode (LED) assembly. Xenon flashtubes or HID lamps will not be accepted. The L-849 REIL system shall consist of a Primary control cabinet with LED flasher assembly and a Secondary cabinet with LED flasher assembly. The Primary and Secondary REIL units shall have a flash rate of 120 flashes per minute ±10%. Both the Primary and Secondary REIL units shall flash simultaneously with no more than a 20 millisecond difference between them. The Secondary control cabinet shall be identical to the Primary control cabinet except that timing signals shall originate from the Primary control cabinet.

{150-2.4 VOLTAGE POWERED REIL. The voltage powered REIL shall operate from a power supply of either 120/240V AC (3-wire with the center wire being neutral) or 240V AC (2-wire), ±10%, 50/60Hz.

[The L-849 Style A shall have a maximum total CCR load of 400VA.]

or

[The L-849 Style C shall have a maximum total CCR load of 200VA.]

or

[The L-849 Style E shall have a maximum total CCR load of 400VA.] }
or



{150-2.4 CURRENT POWERED REIL. The series circuit powered LED REIL system shall operate from either a 3 or 5-step, 60Hz [50Hz] series lighting circuit.

[Each L-849 Style A cabinet shall be separately powered with a 6.6A secondary, 200W maximum isolation transformer.]

or

[Each L-849 Style C cabinet shall be separately powered with a 6.6A secondary, 100W maximum isolation transformer.]

or

[Each L-849 Style E cabinet shall be separately powered with a 6.6A secondary, 200W maximum isolation transformer.] }
150-2.5 REIL OPERATION. {To maximize maintenance personnel safety, there shall be no more than 240Vdc at any point inside either L-849I control cabinet.} or {To maximize maintenance personnel safety, there shall be no more than 70Vdc at any point inside either L-849V control cabinet.} Each control cabinet shall include a door interlock switch that deactivates incoming power when the door is opened. DPDT dry relay output contact points shall be present to provide an external indication in case of a system fault. A system fault alarm shall be activated if 1.) There is a loss of input power, 2.) If more than 25% of the LEDs fail, or 3.) The number of misfires exceeds a preset number within 100 consecutive flashes. It shall be possible to manually select a preset misfire detection number from 0 to 7 within the Primary cabinet.
A flasher control board in the Primary control cabinet shall generate a trigger signal, which shall be transmitted to the LED flasher assemblies in both Primary and Secondary control cabinets. The trigger signal shall be sufficiently robust such that the Primary to Secondary cable does not need to be shielded.
{The LED L-849 REIL shall be available with either one- or three-step current sensing to allow automatic intensity selection based on the current sensed in a series circuit.}

{The L-849V REIL Primary control cabinet shall have the capability to read series circuit current from the secondary of a 6.6A isolation transformer } or {The L-849I REIL Primary control cabinet shall have the capability to read series circuit current from the secondary of the same isolation transformer that powers the Primary. Use of a separate isolation transformer shall not be required.}

CONSTRUCTION METHODS
150-3.1 PLACING THE LED L-849 REIL. The contractor shall furnish and install each L-849 REIL as specified in the proposal and shown in the plans. The L-849 REIL shall be mounted on a mounting device at the locations shown on the plans.
{If current sensing used: The current sensing PCB shall be properly adjusted to activate the REIL at the appropriate CCR step settings}
150-3.2 TESTS. The REIL shall be fully tested by continuous operation for not less than 24 hours as a completed system prior to acceptance.

{If current sensing used:

With the REIL in Remote, 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 REIL shall illuminate properly during each portion of the test. At the end of this test, the REIL shall be checked for proper operation in Local control}
{If current sensing not used:

The test shall include operating the REIL in both Remote and Local in each step not less than 10 times at the beginning and end of the 24-hour test. The REIL shall illuminate properly during each portion of the test.}

METHOD OF MEASUREMENT
150-4.1 MEASUREMENT. The quantity of lights to be paid for under this item shall be for the total quantity of LED L-849 REIL units installed and one Instruction Manual (per system) 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 LED L-849 REIL units 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 LED L-849 REIL units, in Place—per each
END OF ITEM L-150



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