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Electrical
More than 30 type, 22000 lighting units, are located in the Terminal building, fluorescent, Metal halide, Halogen and high pressure sodium. Main distribution boards (MDBs) are fed from the low voltage side of the step-down transformers, which in turn feeds, the final branch panels that supply voltage to different loads.
Various types of lifts with different sizes, in addition to Escalators and Travelators are used to facilitate the passenger's circulation in the airport. They are equipped with many safety devices.
The airfield of Rafik Hariri international airport is divided into three major runways: -Runway 03-21 and associated taxiways -Runway 16-34 and associated taxiways -Runway 17-35 and associated taxiways The airfield lighting system for each runway is composed of subsystem that gives the pilot of an operating aircraft visual guidance required by different types of operation depending on the classification of the approach system and the visual range.
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A
high quality MV circuit breakers using
Normaclade withdrawable, 12KV, 1600Amp, 25KA
type switchgear, (Manually or Electrically
operated). 
Three
medium voltage feeders feed the main 11kV
switchgears in the Utility Plant building, two
feeders from EDL and One from the Main power
plant. The main
11kV switchgears in turn distribute
medium voltage power to different satellite
substations through three busbars.
Step-down
Cast resin - Dry type transformer 11/0.4KV
250/500/1000KVA 3-Phase, indoor, Mounting and
housing inside cabinet - metal enclosure are
distributed in different substations at
different locations, and transfer the medium
voltage power into low voltage to be used for
different loads.
The
power management system is designed to manage
the power failure and power restoration, to load
/ unload some satellite substation transformers
according to priority program and the generating
power plant, and to localize earth faults in BIA
network.
The
main emergency power plant provides a power of
1673 KW through 11KV Genset, 1673 kW of power,
and following 6 cylindrical in-line block engine
design. 
Another
kind of emergency generators are used at BIA,
these are the low voltage standby generators.
They are designed to insure instant power for
the essential loads during power failures in
different buildings and locations. The following
types are used: 
The
window Cleaning system consists of 3 units one
unit for cleaning the entrance façade windows;
another unit is used for the south façade, and
the third unit for the control tower.
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