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Explosion Proof Lighting For Flare Stacks

​Guidelines for night marking flare stacks with obstruction lights

Flare stacks are gas combustion devices used in industrial plants such as petroleum refineries, chemical plants, natural gas processing plants as well as at oil or gas production sites having oil wells, gas wells, offshore oil and gas rigs and landfills.

There is no single standard defining minimum mandatory requirements governing design and installation of obstruction lighting; on the other hand the most common and widespread regulations are ICAO's and FAA's.
       
 Most important points to night marking flare stacks
  • lights shall be put between 1,5-3 m below the top of the chimney in order to avoid a potential disruption by the smoke;
  • the number of lights to be installed at the top and at each level depends on the diameter/width of the structure;
  • the number of light levels depends on the height of the structure;
  • lights shall be certified in accordance with ATEX/IECEx beacuse they are installed in hazardous and harsh environments.

Number and types of lighting levels (structure height)
H < 45m
1 level of low intensity obstruction lights shall be used

45m < H < 105m
2 levels of obstruction lights shall be used: top level with medium intesity, intermediate with low intensity

105m < H < 210m
4 levels shall be used: top with medium intesity, 1st intermediate with low intensity, 2nd intermediate with medium intensity, lower level with low intensity


Number of lights per level (structure diameter/width)

D < 6m
3 obstruction lights shall be used (120°) for flare stacks with circular base < 6m

D > 6m
4 obstruction lights shall be used (90°) for flare stacks with circular base > 6m

W < 45m
​
4 obstruction lights shall be used (one per corner) for flare stacks with square base

Commonly used lamps for Flare Stacks Lighting (Night)

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Low Intensity Obstruction Light for explosion proof (steady red light)

Type of beacon: single steady. Light Source: LED. Colour: red. Light Intensity > 32 cd.
ICAO TYPE B/FAA L-810.
ATEX certified. IECEx certified.

​Art. SEGS24A32_EXIIC, SEGS48A32_EXIIC, SEGS23A32_EXIIC

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Medium Intensity Obstruction Light for explosion proof (flashing red light)

Type of beacon: single flashing. Light Source: LED. Colour: red. Light Intensity > 2000 cd.
ICAO TYPE B/FAA TYPE L-864.
ATEX certified. IECEx certified.

​Art. SEGS24P2K_EXIIC, SEGS48P2K_EXIIC, SEGS23P2K_EXIIC 

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Complete range of explosion-proof warning lights for oil rigs and offshores

Check our complete range of solutions for explosion-proof (ATEX/IECEx certified) for oil rigs and offshores:
  • * ​Low intensity obstruction lights (ATEX certified, IECEx certified)
  • * Medium intensity obstruction lights (ATEX certified, IECEx certified)
* Control boards and accessories (ATEX certified, IECEx certified)​​* Custom solutions (ATEX certified, IECEx certified)

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