OPERATING & MAINTENANCE MANUAL MODEL : EHA series
YOUYANG AIRPORT LIGHTING EQUIPMENT INC. Page
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Wing Bar Light
Runway End Light
Runway Threshold Light
Figure 1.2 Lighting configuration(RTHL, RENL,WBL)
1) Runway threshold lights -
-. When a threshold is at the extremity of a runway, the threshold lights shall be
placed in a row at right angles to the runway axis as near to the extremity of the
runway as possible and, in any case, not more than 3 m outside the extremity.
-.Threshold lighting shall consist of :.
a) on a non-instrument or non-precision approach runway, at least six lights;
b) on a precision approach runway category I, at least the number of lights that
would be required if the lights were uniformly spaced at intervals of 3m
between the rows of runway edge lights; and
C) on a precision approach runway category II or III , lights uniformly spaced
between the rows of runway edge lights at interval of not more than 3m.
2) Wing bar
-. Wing bar lights shall be symmetrically disposed about the runway centre line at
the threshold in tow groups, i.e. wing bars. Each wing bar shall be formed by at
least five lights extending at least 10m outward from, and at right angles to, the
line of the runway edge lights, with the innermost light of each wing bar in the
line of the runway edge lights.
-. Runway threshold and wing bar lights shall be fixed unidirectional lights showing
green in the direction of approach to the runway. The intensity and beam spread
of the lights shall be adequate for the conditions of visibility and ambient light in
which use of the runway is intended.
