Product Specification

Product	Low Intensity Type A
Code
Version	V1.0
Date	2021/10/27

Designed by	Checked by	Approved by

Aviation obstruction lights are divided according to height. When natural objects or obstacles are higher than 45 meters from the surrounding ground, low intensity type A and low intensity type B aviation obstruction lights need to be installed.

 When the low intensity aviation obstruction light is displayed on a fixed object, whether it is Type A or Type B low intensity aviation obstruction light, it must be a constant red light. However, the C-type low intensity obstruction lights displayed on emergency and security vehicles and the D-type low intensity obstruction lights displayed on "follow me" vehicles must flash yellow. The low intensity obstruction lights on objects with limited maneuverability such as passenger boarding bridges must be red and constantly glowing, and their light intensity must be sufficient under the conditions of the light intensity of the nearby lights and the general lighting level for normal viewing of the object. Ensure the sharpness of objects. On other objects with limited maneuverability, low intensity obstruction lights must at least comply with relevant aviation regulations.

The number and arrangement of low intensity, medium intensity or high intensity obstruction lights must be able to mark the object in every azimuth. If the set obstruction lights cannot meet the basic outline of the marked object, the corresponding obstruction lights will be cancelled.

1 Technical Parameters

1.1 Dimensions (mm)

1.2 Technical Parameters

The following parameters are obtained under normal temperature test. (25℃)

Item of Test		Parameters
Model		FL-L810(A)
Structure Parameter	Nominal Dimension	137×137×231mm
	Installation Dimension	SEE BELOW
	Material of Lamp Panel	Aluminum Die    Casting
	Material of Cover	PC
Electrical Parameter	Rated Power	≤5W
	Input Voltage	AC176V-264V
Optical Parameter	Light intensity	Background brightness	Light intensity
		<50 cd/㎡	10Cd
	Light source	LED
	Light color	Red
Operating mode	Operating    mode	Steady burning
	Function	Aviation    obstruction light belongs to airfield ground light product, this product is &ldquo;Low    intensity type A light&rdquo;, it is widely used in airfield clearance zone,    airfield course sector, power tower and obstructions less than 45m, can    assist pilots to visualize the physical size of the obstruction, to ensure    safety flight.
Other Parameter	Operating tem.	-40～+55℃
	Wind load①	60m/s
	Protection	IP66
	Weight	1Kg

2. What are the characteristics of different aviation obstruction lights？

Aviation obstruction lights can be divided into low-intensity aviation obstruction lights, medium-intensity aviation obstruction lights and high-intensity aviation obstruction lights according to the installation height. According to the 2015 "People's Republic of China Civil Aviation Industry Standard MH/T 6012-2015" on aviation obstruction lights, it strictly requires the relevant characteristics of different aviation obstruction lights.

All aviation obstruction lights must meet the requirements of Table 4:

Aviation obstruction light installation characteristics

1. Low intensity obstruction lights

The characteristics of low-intensity obstruction lights should meet the requirements of Table 4 and Table 5. The horizontal beam spread angle of low-intensity obstruction lights is 360°.

The mechanical interface for the edge or bottom installation of Type A and Type B low-intensity obstruction lights should be G3/4 cylindrical pipe thread or G1 cylindrical pipe thread.

Low-intensity aviation obstruction light characteristics

2. Medium intensity obstruction lights

The characteristics of medium intensity obstruction lights should meet the requirements of Table 4 and Table 6. The horizontal beam spread angle of medium intensity obstruction lights is 360°.

Installation characteristics of medium intensity aviation obstruction lights

3. High intensity obstruction lights

The characteristics of high-intensity obstruction lights should meet the requirements of Table 4 and Table 6.

The horizontal beam spread angle of the high-intensity obstruction light is 90° or 120°, and multiple lamps can be used for 360° horizontal coverage.

3. Installation

3.1 Schematic Diagram

3.2 Instruction

In many cases, the aviation obstruction lights purchased can work normally and emit light when tested at the factory, but they cannot emit light normally or emit light abnormally when the project is installed and debugged on site.

The production, debugging and sales of aviation obstruction lights have a series of formal standard procedures. The lamps have been aging and tested for a long time before they leave the factory. According to statistics, the reasons for the obstruction lights not working normally in the project are basically due to on-site construction. The personnel failed to perform the normal wiring of the luminaire in accordance with the installation instructions of the luminaire. In some projects, if the local voltage is too high, the obstruction lights will be burned out directly. Therefore, before proceeding with the lamp installation operation, please read the lamp installation instruction manual to carry out the correct lamp installation work.

Aviation obstruction light signal line with flashing light cable has four cores, brown and black are power lines, gray (blue) line is signal line, and yellow-green is grounding line (PE); if the lamp needs to flash continuously, then After connecting all the wires of the same color in parallel, connect the brown and black wires to the power supply.

How to correctly set the position of aviation obstruction lights? do you know?

For a large object or a group of dense objects, the top light must at least show its high point or high edge relative to the obstacle limit surface to mark the basic outline and range of the object. If there are two or more edges of the same height, the edge closest to the landing zone must be marked. Where low-intensity obstruction lights are used, their longitudinal spacing must not be greater than 45 m. Where medium intensity obstruction lights are used, the longitudinal spacing of aviation obstruction lights must not be greater than 90m.

Suggestion-when the obstacle restriction surface involved is an inclined plane, and the object protruding above the obstacle restriction surface is not the high point of the object itself, an obstacle light should be added to the high point of the object.

When the top of the obstacle marked by the A-type medium intensity obstruction light is higher than the surrounding ground or the top elevation of nearby buildings (when the obstacle is surrounded by multiple buildings) by more than 105 m, an obstruction light must be added in the middle. The additional mid-level obstruction lights must be installed as far as possible between the top obstruction lights and the ground or the top elevation of nearby buildings at an equal distance of no more than 105 m.

When the top of the obstacle marked by the light intensity obstruction light in the B-type aviation obstruction light is 45 m higher than the surrounding ground or the top elevation of nearby buildings (when the obstacle is surrounded by multiple buildings), the aviation obstruction light must Add obstruction lights in the middle. The additional mid-level obstruction lights must be alternate B-type low-intensity obstruction lights and B-type medium-intensity obstruction lights, and as far as possible between the top obstruction lights and the ground or the top elevation of nearby buildings, the height of no more than 52m Set equidistantly.

The location of aviation obstruction lights has certain specifications. The location of aviation obstruction lights must be set without obstruction 24 hours a day to ensure that the flashing of the lamps can be recognized by the aircraft.

Airport sequential flashlight system consists of three parts: sequential flashlight aviation obstruction light, unit control box and main control cabinet.

4. Maintenance

4.1 Keep the light working in a stable and constant power supply;

4.2 Report to engineers once malfunction occurs;

5. Standard

All kinds of aviation obstruction lights should be ICAO(International Civil Aviation Organization) or FAA(Federal Aviation Administration) compliant. ICAO FAA both have a standard regarding all kinds of aviation obstruction lights, all lights should be designed and installed according to ICAO or FAA standard. In China, the standard is called “CAAC”(Civil Aviation Administration of China). All kinds of aviation obstruction lights should be compliant with CAAC when they are sold.

5.1 Low intensity type A light, International Civil Aviation Organization, annex 14, volume 1, 7^th edition, “airport design and operation”, July 2016, table 6.3.

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