Heliport Approach Path Indicator Installation Guidance Manual
Heliport Approach Path Indicator Installation Guidance Manual
CM-HT12/P
Welcome to use our products, please read the product manual before use.
Contents
1.1 Quality assurance and responsibility 3
3.0 Introduction of PAPI system 4
5.1 Flange mounting dimension 10
5.4 Elevation adjustment and setting. 13
Preface
The Part 9 of ICAO《airport service manual》"maintenance practices of the airport" and the FAA's ac150/5345-26 "maintenance of the airport visual AIDS" are the highest standards for installation and maintenance of the lighting fixtures.These two standards are heavily referenced in this manual.
The content of this manual is important. Please read carefully before installation and commissioning. After properly understanding the whole content, strictly follow the method of construction as stipulated in the instruction, ensure that the product is properly installed and used safely. The daily maintenance personnel of the airport should do routine maintenance work in strict accordance with the relevant regulations to ensure the best working condition of the lamps and lanterns.
Safety standards must be strictly observed. Non-professionals are prohibited from touching lights and equipment. In any case, live work should be avoided. The construction or maintenance personnel should have the knowledge of first aid in case of emergency.
1.0 Considerations
l Precision approach path indicator can only be used in airports.
l Be careful when handling; Landing or collision will cause damage to the inner light bulb or other optical parts of the product, and may result in scratches.
l Ensure that power is off when installing PAPI; The current shock caused by the installation of the lamp may cause the light source to be damaged.
l Make sure grounding is effective before the power is energized
l The breakable mechanism at the bottom of the leg is forbidden to apply excessive force when installation.
l wet hand to touch the internal electrical equipment shall be strictly prohibited.
l The skin of wires should be replaced immediately if it is broken.
1.1 Quality assurance and responsibility
This product from normal use but no more than a year after installation within 12 months of shelf life, or in the warranty period stipulated in the tender and bid, any defects in design, material or process, the manufacturer will be responsible for free replacement. But manufacturer does not assume the use of the light bulb attrition is damaged, and because of the unqualified installation, maintenance method is not correct, improper operation, power supply system fault, watchung caused by wrong operation and so on damage compensation. The compensation of the manufacturer is limited to the precise approach to the channel indicator itself and does not involve any other loss of the user.
2.0 Standard
l Annex 14 to the Convention on International Civil Aviation – Aerodromes
l AC-137-CA-2015-07 Precision approach path indicator
2.1 Operational environment
l Environmental temperature -40 ° C ~ + 55 ° C;
l Degree of protection IP65, can work normally in the corrosive salt fog.
2.2 Features
l Straight red-white boundary, red-white transition zone<3 arc minute, in compliance with ICAO Annex 14;
l High precision, stable and reliable structure, easy to operate and maintain;
l Electrical apparatus control system, PAPI system shut down if there is abnormality;
l Internal electric inclinometer can reach a resolution value of 0.01° and Show the elevation Angle of the lamp
l Able to store Angle data, elevation Angle over threshold shutdown system.
l Closed optical system refrains foreign objects from entering on routine maintenance;
2.3 Optical properties
The transition from red to white is not greater than 3 arc points in the Angle of the beam center.The light intensity and the color coordinates of the light conforms to the light intensity distribution requirements of Annex 14.
Figure 1. The light intensity distribution curve
2.4 Power supply mode
The PAPI system is powered by constant current regulator with two 200W isolation transformer
3.0 Introduction of PAPI system
The PAPI system is used to guide aircraft to approach the runway at an appropriate altitude.
The upper part of the beam is white and the lower part is red.In the visual range, different elevation lights in PAPI system allow the aircraft to see different combinations of red and white light at different altitudes.The pilot determines and adjusts the altitude of the aircraft by the combination of the beam he sees, making it at the right height. APAPI system consists of two precision approach path indicators.
3.1 Signals
If the beams of the PAPI system aim at the near slope in accordance with the prescribed Angle, Pilots see different colors at different heights.
a) If the height is right, two lamps that are close to the runway are red, and the two lamps that are farther from the runway are white.
b) If the height is high, you can see that the nearest light to the runway is red, and the three luminaries furthest from the runway are white. If the height is too high, all the lamps are white;
c) If the height is low, you can see that the three lights closest to the runway are red, and the light from the farthest from the runway is white. When it is Far below to the approaching slope, all lights are red.
APAPI system:
a) If the height is right, the lamp that are close to the runway is red, and the lamp that are farther from the runway is white.
b) If the height is high, you can see two lamps are white.
c) If the height is low, you can see two lamps are red.
Figure 2. PAPI and APAPI signal
If glide slope Angle is 3 °, the elevation of four PAPI elevation should be set to 3 ° 30 ', 3 ° 10 ', 2 ° 50 ', 2 ° 30 '. The height of the pilot’s eye above the aircraft’s ILS glide path/MLS antenna varies with the type of aeroplane and approach attitude. Harmonization of the PAPI signal and ILS glide path and/or MLS minimum glide path to a point closer to the threshold may be achieved by increasing the on-course sector from 20' to 30'. The setting angles for a 3° glide slope would then be 2°25', 2°45', 3°15' and 3°35'.
4.0 structure
A single lamp unit consists of a lamp body and three stents. The lamp body is composed mainly of top cover, front glass panel, box body, lens, color filter, light bulb and bracket, and the lamp is always provided with optical element positioning and protection. The bracket assembly consists of flanges, easy folds, long poles, screws, nuts and gaskets, which are used to support the lamp body and control the height and elevation of the lamp body.
Figure 3. PAPI appearance
4.1 Overall dimensions
The maximum installation height is 900mm, and the corresponding optical axis height is 826mm.
Figure 4. Overall dimensions of PAPI
Figure 5. Main parts of PAPI
1 | lid | 8 | Lens | 15 | Lens mount | 22 | Connection component B |
2 | Flat glass | 9 | Lens mount | 16 | Lens | 23 | Adjustable screw |
3 | Lens cover | 10 | Light body | 17 | Lens cover | 24 | The fastening screw |
4 | The tailgate | 11 | Filter holder | 18 | flange | 25 | Lens cover |
5 | The bulb clip | 12 | Filter press plate | 19 | Easy breaking parts | 26 | clip |
6 | The light bulb | 13 | Color filter | 20 | Extension rod | 27 | Flat glass |
7 | The light bulb holder | 14 | Color filter limit part | 21 | Connection component A | 28 | The front panel |
5.0 Installation position
From the runway entrance, the PAPI or APAPI must be installed on the left side of the runway unless it is not practicable. The PAPI system consists of four (APAPI two) equidistant sets of lamps.
The distance from the nearest runway to the PAPI lamp unit should be 15m (APAPI for 10m). All PAPI lighting units are not less than 14m (APAPI 9m) from other taxiway, runway and apron.
The spacing of PAPI units is usually 9m; It is only possible to use a distance of not less than 6m when the lifting width is not sufficient to accommodate four lamps with spacing of 9m. At this time, the lamp unit closest to the runway should not be less than 10m from the edge of the runway.
APAPI lamp unit spacing should be 6m. The installation error is plus or minus 1m.
Figure 6. PAPI installation position
Figure 7. APAPI installation position
5.1 Flange mounting dimension
The installation of PAPI lamp unit is fixed on the precast concrete base. Anchor the flange to the base with the anchor bolt embedded in the base. If the expansion bolts are used, the size must be greater than M10 x 120. The fixed position is shown in the figure.
Figure 8. Anchor bolt embedded position
5.2 Height setting
According to the requirements of the base height of the optical axis of PAPI system, set a benchmark horizontal line to meet this height requirement before the lamp body. Loosen the connection bolt of PAPI lamp, adjust the three adjusting screw on the lamp, make the light axis of the front part of the lamp body align with the base line. Fine-tune the screw and observe the horizontal blisters in the lamp until the lamp body level is up.
5.3 Connection method
Each lamp is equipped with two series of 200W isolation transformer. The power outlet of the lamp is connected to the outlet line of the insulated transformer box by the waterproof joint. The other end of the power supply is connected to the socket and is firmly fixed. The system USES 6.6A ac constant current source.
The four lamps in PAPI system are connected by the communication line and the red line is positive, the black is negative and cannot be reversed.
The power cord and communication bus must be protected by the flexible metal hose.
Figure 9. General wiring diagram
Figure 10. Internal wiring
Figure 11. CCR
You can choose a light bulb to close automatically or at least two lights in a lamp unit goes out will automatically close by installing Jump cap on the circuit board. If the jump is mounted on the left, the system automatically shuts down at least two light bulbs in each unit of the system. IF The jump is mounted on the right (or not), and when a light bulb goes out, the system shuts down automatically.
Figure 12. Jump cap
After the grounding wire enters the lamp body through the metal hose, insert the grounding terminal, tighten the screw, and press the ground wire.
If the isolation transformer does not have waterproof joint, it should pay attention to the wiring direction when wiring. As shown in the figure below, the input or forward direction of the symbol "+" symbol is usually red; The denotation of a symbol is the output or reverse, generally green. The wiring is guaranteed to be cocted by two wires of a different color, the secondary line is also connected by two different threads, and the remaining two different color lines connect the lamps and lanterns.
Figure 13. Isolation transformer wiring
8.0 Contact Information
HUNAN CHENDONG TECH CO., LTD
Address:#4, XinCheng Science and Technology Park, West of Yuelu road to Wanglong road, Yuelu district,Changsha city, Hunan province, China
Emma
what'sapp /wechat/phoine:0086 13342512879
E-mail: emma@chendongtech.com
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