Siemens L-852A-D manual Wireways Preparation, Installation on L-868B Base

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Type L-852A-D Dualite Bidirectional Taxiway Light Fixtures

Installation

Pavement Recess and Wireways Preparation (contd.)

Make sure the recess size and depth are maintained within specified limits.

The recess side walls must be perpendicular to the pavement surface.

The bottom surface must be flat or slightly concave to ensure that the base receptacle is resting securely and in true position.

The recess can best be drilled using a 13-in.- (330-mm-) diameter diamond-faced core drill in a sturdy, stable drill rig.

Wireways Preparation

To prepare wireways, follow the guidelines below.

See Figure 3. The wireways should be sawed using a 3/8-in.- (9.525-mm-) thick diamond-faced saw.

When the wireways cross construction joints, the sawcuts should extend 1-1/4-in. (31.75 mm) below the existing joint for a distance of 6 in. (152.4 mm) on each side of the joint.

Fill to 1 in. (25.4 mm) from the top of the pavement with an appropriate joint sealing filler in accordance with Item P-605 or P-606 of FAA publication Standard Specifications for Construction of Airports. Item P-605 should be used with asphalt, and Item P-606 with concrete.

Installation on L-868B Base

The light assembly is shipped complete, including the lamp, and is ready for installation.

To install the L-852A-D light fixture on the L-868B base, perform the following procedure:

1.Clean the base receptacle. Make sure that the base receptacle does not contain water and is completely clean and dry. The mating surfaces must be clean and free of foreign particles.

2.Slide a 16-inch- (406-mm-) long rod through the 3/8-inch-

(9.525-mm-) diameter eyebolts and carry the light assembly to the base. Align the light assembly with the runway for proper light direction.

3.Place the light assembly beside the opening in the L-868B base so that the L-823 connector can be connected with the mating receptacle from the L-830 isolation transformer in the base. Make sure that the

© 2001 Siemens Airfield Solutions, Incorporated

96A0149E

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All rights reserved

Issued 5/01

 

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Contents Type L-852A-D Dualite Bidirectional Taxiway Light Fixtures Record of Changes Rev Description EC No Checke Approved DateTable of Contents List of Figures List of Tables Warranties Disclaimers 96A0149E Safety Safety Symbols Type L-850A Dualite Bidirectional Runway Light Fixture96A0149E Safety Symbols contd Qualified Personnel Intended Use Installation Operation 96A0149E Description Type FunctionOptical Assembly Description contdOptical Assembly Description Quantity Specifications Dimensions WeightIf you order this This connector is supplied MountingPavement Recess and Wireways Preparation Pavement Recess and Wireways Preparation contd Recess HoleWireways Preparation Installation on L-868B Base96A0149E Installation on L-868B Base Installation on Siemens Airfield Solutions Shallow BaseAlignment Jig 852A-D Light Fixture 96A0149E Interval Maintenance Task Action Maintenance Maintenance ScheduleMaintenance Procedures Cleaning Light Channel and Prism Replacing LampBolt #1 Bolt #6 Bolt #2 Bolt #5 Bolt #3 Bolt #4 Removing L-868B Base Water Cleaning Light Channel and Prism contdRetorquing Mounting Bolts Troubleshooting Troubleshooting contd Repair Replacing Film Disc Cutout Assembly 96A0149E Replacing Lamp Replacing Lamp contd Description Part Number Parts Using the Illustrated Parts List852A-D Light Fixture Part Numbering System Filter Colors Film Disc CutoutLamp 852C or D Options 852A, B, or C Options852A-D Light Fixture Parts ListList contd 104 mm Recommended Spare Parts

L-852A-D specifications

The Siemens L-852A-D is an advanced lighting system designed primarily for airport applications, providing a robust solution for runway edge lighting. This innovative product is engineered to enhance safety and operational efficiency in various weather conditions, catering to the unique demands of modern air traffic management.

One of the most notable features of the L-852A-D is its LED technology. The use of light-emitting diodes significantly increases energy efficiency compared to traditional incandescent lights. LEDs are known for their long lifespan, often exceeding 50,000 hours, which translates to reduced maintenance costs and less frequent replacements. This is particularly beneficial in airport environments where minimizing downtime is crucial.

The L-852A-D is designed to provide exceptional visibility with its high-intensity output, crucial for both day and night operations. The system's optical design ensures uniform light distribution, which enhances pilot awareness and improves navigation during takeoff and landing. Additionally, the device is engineered to comply with international aviation standards, ensuring reliability and safety in all conditions.

Another key characteristic of the L-852A-D is its durability. The system is constructed to withstand harsh environmental conditions, including extreme temperatures, high winds, and moisture. Its housing is built from corrosion-resistant materials, ensuring longevity even in challenging climates. The product is also designed to be highly resilient to impacts, which is essential in high-traffic airport settings.

The L-852A-D incorporates sophisticated control technologies that enable adaptive lighting capabilities. This feature allows for automatic adjustments based on external conditions, such as visibility levels, significantly enhancing operational efficiency. Furthermore, it can be integrated with central control systems, allowing for seamless management and monitoring from a single point.

Safety is paramount in airport operations, and the L-852A-D includes features that enhance user and operational safety. Its low profile reduces the risk of physical hazards, while the integrated fail-safe mechanisms ensure continued operation in the event of a power failure.

In summary, the Siemens L-852A-D runway edge lighting system combines advanced LED technology, durability, and intelligent control features to provide an efficient and reliable solution for airport environments. Its main attributes include energy efficiency, long lifespan, compliance with regulatory standards, and robust construction, making it an ideal choice for enhancing safety and operational efficiency in aviation lighting.