The provided document is an "Operation & Maintenance Manual" for the YOUYANG AIRPORT LIGHTING EQUIPMENT INC. EHA series, which includes various types of elevated airport lights. The manual covers general information, product specifications, installation, maintenance, transportation, storage, and parts lists for several models: EHA-ALS-1 (Approach Center Line Light), EHA-RTHL (Runway Threshold Light), EHA-WBAR (Runway Wing Bar Light), EHA-RENL (Runway End Light), and EHA-STBL (Stop Bar Light).
Function Description
The EHA series lights are designed for airport runway and approach lighting systems, providing visual guidance for aircraft during takeoff, landing, and taxiing operations. Each model serves a specific purpose:
- EHA-ALS-1 (Approach Center Line Light): Illuminates the center line of the approach path, guiding pilots towards the runway. This light can also be used for crossbars in approach lighting systems.
- EHA-RTHL (Runway Threshold Light): Marks the beginning of the runway available for landing, indicating the threshold.
- EHA-WBAR (Runway Wing Bar Light): Provides additional visual cues at the runway threshold, often used in conjunction with threshold lights to define the landing zone.
- EHA-RENL (Runway End Light): Marks the end of the runway, indicating the point beyond which the runway is no longer suitable for aircraft operations.
- EHA-STBL (Stop Bar Light): Used to indicate a point beyond which an aircraft must not proceed without air traffic control clearance, typically at runway-holding positions.
These lights are crucial for enhancing safety and operational efficiency at airports, especially during low visibility conditions. They are designed to meet international standards such as FAA AC 150/5340-26 and ICAO regulations for airport lighting.
Important Technical Specifications
The EHA series lights share several common technical specifications, with variations in light color and beam characteristics depending on their function.
General Environmental Properties (Common to all listed models):
- Operating Temperature: -55°C to +55°C
- Storage Temperature: -40°C to +60°C
- Precipitation (Ingress Protection): IP54, indicating protection against dust ingress and splashing water from any direction.
- Salt Fog: Exposure to a corrosive salt atmosphere, ensuring durability in various environmental conditions.
- Temperature Shock: Exposure of the hot light fixture to cold water spray, demonstrating robustness against rapid temperature changes.
- Humidity Scope: 98% at room temperature for 25°C.
Electrical Properties (Common to all listed models):
- Input Power: 6.6A series circuit, indicating compatibility with constant current series circuits commonly used in airport lighting.
- Power Consumption: 73VA.
- Lamp Type: LED lamp, specifically LCW CQAR6EA METAL PCB(OSRAM) for green and red lights, and LCW CQAR14EA for white lights.
- Lamp Specification: 26.4W.
- Lamp Life: >30,000 hours, ensuring long operational life and reduced maintenance frequency.
Mechanical Properties (Common to all listed models):
- Installation Height: 300mm Maximum.
- Size: Ø167*300mm Maximum.
- Weight: 3.2Kg.
- Frangibility of Coupling: Breakable under 230kg pressure on 30cm from breakable points, a critical safety feature allowing the light fixture to break away upon impact, minimizing damage to aircraft.
- Surface Treatment: Powder electrostatic painting.
- Light Body Material: Aluminum die-casting.
- Reflector Material: Polycarbonate (Ø111*27.4).
- Front Glass Material: Heat resistant glass (Clear).
- 2 Pole Plug: FAA L-823, STYLE 6.
Photometric Properties (Specific to each model):
-
EHA-ALS-1 (Approach Center Line Light / Crossbars Light - White):
- Light Color: White.
- Main Beam Angle: Vertical: 2.5°~13.5°, Horizontal: ±10°.
- Min. Average Intensity: 20,000 cd.
- Min. Intensity (Main beam curve): 10,000 cd.
- Min. Intensity (10% beam curve): 1,000 cd.
- Min. Intensity (5% beam curve): 500 cd.
- Chromaticity: White (x: 0.4046, y: 0.3911).
-
EHA-RTHL (Runway Threshold Light - Green):
- Light Color: Green.
- Main Beam Angle: Vertical: 1°~10°, Horizontal: ±5.5°.
- Min. Average Intensity: 10,000 cd.
- Min. Intensity (Main beam curve): 5,000 cd.
- Min. Intensity (10% beam curve): 1,000 cd.
- Min. Intensity (5% beam curve): 500 cd.
- Chromaticity: Green (x: 0.2643, y: 0.4164).
-
EHA-WBAR (Runway Wing Bar Light - Green):
- Light Color: Green.
- Main Beam Angle: Vertical: 0.5°~10.5°, Horizontal: ±7°.
- Min. Average Intensity: 10,000 cd.
- Min. Intensity (Main beam curve): 5,000 cd.
- Min. Intensity (10% beam curve): 1,000 cd.
- Min. Intensity (5% beam curve): 500 cd.
- Chromaticity: Green (x: 0.2643, y: 0.4164).
-
EHA-RENL (Runway End Light - Red):
- Light Color: Red.
- Main Beam Angle: Vertical: 0.25°~4.75°, Horizontal: ±6°.
- Min. Average Intensity: 2,500 cd.
- Min. Intensity (Main beam curve): 1,250 cd.
- Min. Intensity (10% beam curve): 250 cd.
- Min. Intensity (5% beam curve): 125 cd.
- Chromaticity: Red (x: 0.6889, y: 0.3110).
-
EHA-STBL (Stop Bar Light - Red):
- Light Color: Red.
- Main Beam Angle: Straight, Vertical: 1°~8°, Horizontal: ±10°.
- Min. Average Intensity: Straight: 2,000 cd.
- Min. Intensity (Main beam curve): Straight: 1,000 cd.
- Min. Intensity (10% beam curve): Straight: 200 cd.
- Min. Intensity (5% beam curve): Straight: 100 cd.
- Chromaticity: Red (x: 0.6733, y: 0.3249).
Usage Features
The manual emphasizes correct usage and safety precautions. Users are advised to thoroughly read the manual and contact the Quality Assurance Team for any questions to ensure proper installation, operation, and maintenance. The manual distinguishes between "WARNING" (potential for serious injury or death) and "NOTICE" (potential for light injury or product troubles) to highlight critical safety information.
Installation:
- Lights are installed in a deep base or elbow, following FAA AC 150/5340-26 guidelines, or specific country regulations.
- Safety during installation: Always replace the light fixture when disconnected from line voltage. Avoid scars or impurities on frangible joint parts. Remove water from the deep base or cable conduit to prevent damage from freezing. Tightly fix secondary cables and isolating transformers. Do not carry or move the light fixture by its connected transformer or lead wire. Ensure replacement lights are of the equal type and color. Clean the fixture with plastic tools to avoid mechanical damage.
- Deep Base Mounting: Involves preparing the installation drawing, marking the deep base position, cutting using a machine, digging for the cable conduit, and fixing the bottom cutting size. Installation includes installing a ground rod, reclaiming the hole with concrete and epoxy, and removing trash and water.
- Connecting Transformer and Connector Kits: Requires cleaning the cable conduit, laying the fixture on a soft surface, connecting the coupling to the conduit, connecting the secondary connector kit to the isolating transformer, and then connecting the fixture's lead wire plug to the transformer's secondary cable receptacle. Taping with EPR and PVC isolation tape is crucial. Surplus lead wire should be filled into the conduit, and the fixture fixed with three bolts, ensuring cables are well-arranged.
- Installation of Mast (for elevated lights): The mast, composed of a glass fiber reinforced plastic (GRP) support part and light fixture, is installed on a concrete base with an anchor bolt. The mast is assembled with a special clamp after wiring. Installation involves checking all materials, ensuring the base box and cable piping are installed correctly, and verifying the isolation transformer connection. The manual provides detailed steps for vertical alignment, securing bolts, connecting cables, and final cleaning.
Operation:
- The lights are designed for continuous operation within specified environmental conditions.
- The LED lamp design ensures long-term, reliable illumination.
Maintenance Features
The manual provides a comprehensive "Preventive Maintenance Checklist" and "Troubleshooting" guide to ensure the longevity and optimal performance of the EHA series lights.
Preventive Maintenance Checklist:
- Daily: Check lighting illumination status.
- Weekly: Check for grass hindering illumination, and clean and check for damage to the lens.
- Monthly: Check alignment and direction of beam, and clean lamps and sockets.
- Half-Yearly: Check height of the lighting, moisture inside the lighting, and rust/peeled paint.
- Annually: Check for breaks in the lighting, cable resistance, and packings.
- Emergency: Check for de-icing and snow removal.
Troubleshooting:
The manual recommends replacing the full light fixture with a new one first to reduce airport shutdown time, then repairing the damaged fixture at a workshop.
- No Lighting:
- Lamp fault: Replace lamp.
- Lamp connected with secondary plug: Connect to circuit.
- 2nd plug of TR disconnected: Connect to connector.
- TR defect: Replace the defective isolating transformer.
- Low Intensity (Brightness):
- Lamp fault: Replace lamp.
- Inside dust: Cleaning.
- Water inlet: Refer to below clause (likely referring to a section on water ingress).
- Control part faulty: Replace control part.
- Water Inlet (Penetration):
- Damage of connect cable: Replace connect cable.
- Prism setting is not good: Prism change.
- Gasket-O ring damage: Gasket change.
Replacement Procedures:
Detailed instructions are provided for replacing key components:
- Front Lens Replacement: Involves loosening screws, removing the front lens, and replacing it with a new one.
- Reflector Changing: Requires loosening screws to separate the reflector from the fixture.
- Replacing LED Module: Involves loosening screws to separate the front body and control cover, then removing the LED module wires and replacing the faulty module.
- Replacing Control Assembly: Involves loosening the ring-clip to separate the front body and control cover, removing LED module wires, and then loosening screws to separate the control assembly from the cover.
- Replacing Lead Cable: Involves cutting the inserted plug and separating its parts, then replacing the cable plug, nut, rubber packing, connector, and H-type tubes.
- Cautions for Replacement: Always use new O-rings and packings, or confirm no damage if reusing. Wear soft gloves and avoid touching the lamp surface with bare hands. Apply anti-seize compound to stainless steel screws. A torque wrench should be used for tightening bolts (3N.m).
Transportation & Storage:
- Storage: Light fixtures should be packed in separate, labeled boxes and stored indoors in dry conditions, away from dust. Storage conditions: dry place without dust, temperature from -55°C to 70°C, humidity below 90%.
- Shipping: Heavier packages should be placed at the bottom. Outer boxes should indicate contents. Racks, boxes, and closed containers can be used. Precautions should be taken to protect contents from dust or impurities during opening. Shipment must comply with general terms and conditions for air and ocean freight.
The manual is a comprehensive guide for ensuring the safe and efficient operation and maintenance of the YOUYANG AIRPORT LIGHTING EQUIPMENT INC. EHA series airport lights.
To Next Page
Need help?
General
