It refers to lights of low (medium) intensity with parallel (sequential) power supply in OMI schemes, in accordance with NGEA 92 (Standards of fitness for operation of civil aerodromes).
Directional lights with parallel (sequential) power supply are designed for light marking and visual identification of the extreme 600m. to the runway end as part of the schemes of lighting and signalling equipment of OMI with one or two landing directions. Arrangement and configuration in NGEAGA-92.
The fire is resistant to external climatic influences according to GOST 15150-69 in accordance with all-climatic execution with placement category 1 (street).
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