technical

Aviation obstruction light setting place and scope

An arena, aviation obstruction light Settings and scope

The law of the People's Republic of China civil aviation products law and relevant state documents for setting up obstacles lights have specific provision:

1. The airport obstacle clearance protection limit high and ultra-high buildings and structures should be set up aviation obstacle lights and marks.

2. And on route around the airfield affect flight safety of artificial and natural obstacles shall be set up aviation obstacle lights and marks.

3. May affect flight safety ground tall, tall buildings and facilities shall be set up aviation obstacle lights and marks and keep the normal state.

4 departments of public security, fire control, transportation in the city has built helipad, above the city as a clearance, city of tall buildings and structures should be set to an empty obstacle lights and marks.

Second, the aviation obstruction light related standards, regulations and Suggestions

"Civil airport airfield technology standard MH5001-2013", issued by the international civil aviation organization, the international standards and construction measures airport "appendix 14 and civil aviation industry standard of the People's Republic of China aviation obstruction light (MH/T6012-2015). Obstacle lights have the following provisions: obstacles set up aviation obstacle lights must be flashing, so as to look down in the air and ground constant light source has obvious distinguish and visual distance can reach regulation.

Third, the classification of the aviation obstruction light

According to the MH/T60121999 issued by the international civil aviation organization "international standards and recommended practices airport" appendix 14, obstruction light points in the low light intensity, light intensity and strong highlights three major categories:

1. The low light intensity obstacle lights for a constant light, red, light peak strong at 32.5 CD, is generally not used alone, and the necessary and the light intensity, strong specular obstacle lights. Such as 45 meters above the building and facilities set have strong intensity or highlights in multilayer obstacle lights, in the strong light intensity or specular obstacle lights can be set up between the low intensity obstacle lights. (low light intensity obstacle lamp is red, the effective intensity 100 CD + / - 25%)

Intensity obstacle lights in 2. According to the requirements of light is divided into three types:

Obstacles lights, light intensity in the type A white flash light, the effective intensity 20000 CD, CD - 2000 for more than 105 metres buildings and facilities and background light strong obstacles or used with strong specular type B light dimmer.

Obstacles lights, light intensity in the type B for the red flash light, the effective intensity 2000 CD + / - 25%, to 105 meters below the building and facilities or with light intensity in type A, strong specular type A obstacle lights.

3. Strong specular obstruction light according to the requirements of light is divided into two kinds:

Strong specular type A obstacle lights for white flash light, and in the day, evening or the dawn and night all-weather variable intensity flash, the effective intensity to day 200000 CD + 25% respectively; Dusk or dawn 20000 CD + / - 25%; Night 2000 CD + / - 25%; Mainly used for more than 150 meters above the building and facilities, or strong Yu Zhongguang obstacle lights.

Highlights strong type B obstacle lights for white flash light, and in the day, evening or the dawn and night all-weather variable intensity synchronous flash three layer, the effective intensity to day 100000 CD + 25% respectively; Dusk or dawn 20000 CD + / - 25%; Night 2000 CD + / - 25%, mainly used for marking the place such as wire, cable tower and the high voltage transmission line iron tower.

Four, setting of aviation obstruction light distribution

1. Obstacles in its obstacle lights set obstacles should mark out the highest and most edge (i.e., recognizing the high and wide).

2. If the object at the top of the 45 meters higher than the surrounding ground, must be set up in the middle tier obstacle lights, the distance of the middle tier must not

Greater than 45 m and as far as possible equal (city more than 30 meters high buildings, in particular, want to consider adding an intermediary obstacle lights). Is located in the city and residential areas near buildings when setting an intermediary obstacle lamp, should consider to avoid make residents feel unhappy. General requirements from the ground can only see the light of dissipation.

3. The shape of the buildings set obstacles lights should be able to see the outline of an object from each aspect, a horizontal direction can be reference to 45 meters distance barriers lights.

4. About 105 meters high, facilities or anchor tower, the top of the tower, etc., should be set up at its tip in light intensity type A obstacle lights, and as the white flash, the lower layer set obstacles lights intensity type B in red.

5. More than 150 meters high objects (such as radio and television tower, large span cable-stayed bridge, etc.) should be set up at its tip highlights strong type A obstacle lights, and should be used, strong specular obstacle lights.

6. Ultra-high voltage transmission line iron tower should be set high strong type B obstacle lights, and the three layers of synchronous flash. Position to the top of the tower, the cable sagging low and middle position, and walk along the cable line is located in tower lateral direction.

7. To the chimney or other similar nature of the building, at the top of the obstacle lights must be in the top 1.5-3 m, considering the chimney pollution to lamps and lanterns, obstacle lights can be installed at the site of the 4-6 meters below the chimney mouth excerpts (see national standards).

8. No matter what kind of obstacle lights, the number of obstruction light at different heights and arrangement, should from different directions can be seen the object or group of contour, and consider the synchronization of obstacle lights flashing, in order to achieve obvious warning role.