OPERATING & MAINTENANCE MANUAL MODEL : EHA series
YOUYANG AIRPORT LIGHTING EQUIPMENT INC. Page
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3
.3.1 MOUNTING DEEP BASE
Flexible conduit may be connected to the base either
through a hub or grommet.
Notes:
1.
RIGID CONDUIT
(OPTIONAL)
MUD DAM
102 mm
FLANGE RING
FLEXIBLE CONDUIT
SUBGRADE
VARIES
VARIES
BASE AND
OR SUBBASE
CAGE #4 BARS
STEEL REINFORCING
VARIES
CONCRETE
3mm
6mm APPROX
76mm
305mm MIN
152 mm Min
Figure 3.2 DEEP BASE (L-867 TYPE)
Deep base for approach light shall be mounted and installed as per below procedure.
1) Prepare installation drawing for deep base to install on the runway and taxiway.
2) Mark deep base installation position on the pavement.
3) Do cutting using machine. (Refer Figure 3.2 )
4) Do cutting for Cable conduit.
5) The bottom cutting size should be 150mm Min deeper and 305mm Min wider than
base box size.
6) Install deep base.
7) Fix the deep base adjusting to each runway direction.
