Volume-IF - JantERmantER

DCPl·K9AOl
3.9.0 Interi1allllumination System
3.9.1 Lighting fixlures.6haII be j!rovided at the ground lloar and at each interior
platform. .
3.9.2 High pressure sodium vapour lamps of 7011501250 Watt rating with suitable
fittings shall be provided under intenial illumination.
3.9.3 Fixtures installed in rows &hall be aligned veriically and horizontally.
3.9.4 All Ighting flXlures 6haII be suitable for 240 V ± 10%. 50 HZ :t: 5%. single
phase. AC Supply.
3.9.5 The following minimum illumination level shall be achieved and guaranteed by
the Contractor : .
Minimum Illumination Level
Ground lloor. Platforms, stalIt:ase,
landings
Area of diff. Dis\, boards
50 Lux
150 lux
3.10.0 ObsIrud.1on Ughtlog System
3.10.1 The Contraclor shaD supply and Insfallthe aviation obstruction lighting system
on the chimney shall consist of the following items :
a) 4 sets of single obstruction Ilghl!l with fIXtures at each floor level.
b) Complete G.I. conduits, PVC insulated wires, G.I. grounding conductor,
weatherproof outdoor juootlon box and aD accessories viz. supports,
damps, junction boxes, etc. to make the installation complete In aM
respects
3.10:1 Aviation obstriJction lighting system shaD conform 10 the requirements of the
lateiIllndian Standard. the Intemational Civil Aviation organisation (ICAO), the
inSlnx:lioil ismied bY theOlreclcf . Genenll . of ;clvH AviatIoo.oJndi" . and th~
Directoratii of Air'Routeir& Aerodromes' (DARA) ciroularNo, 3 of '987.
3.10.2 The obstruction lights shall be provided at the levels indicated in the drawing.
3.10,3 All aviation obstruction lights at EL (+) 150 M and above shall be high intensity
llashing white light having an effective Intensity of not less than 4000 candelas.
The flash frequency shall be between 4O-6OImin.
. .
3.10.4 All aviation obstruction lights below EL. 150 M shall be medium intensity llashlng
red light having an effective intensity of not less than 1500 candel"s. The IIMh
frequency SMII be 4O-G0imin.
(PCA.CO-()03.S80SCSA24.d"",doc) V.1I-D2IS·XXIV : 30
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