Document UT-MT-0428
Page 8 of 35
Edition 11/03/2014
Supersedes edition 04/30/2012
INSET RUNWAY EDGE LIGHT SLRE
INSTRUCTION MANUAL FOR USE, INSTALLATION AND MAINTENANCE
1
GENERAL
SLRE S
emi-flush runway edge light is high intensity, uni-bidirectional, inset, 12”
steady-burning type.
These fixtures are intended for use as runway edge or threshold\end, in order to
provide a visual aid to the moving aircraft.
SLRE lights are in compliance with ICAO Annex 14 Vol.1, FAA AC 150/5345-46 (Style
2), IEC TS 61827 (Style 3) and STANAG 3316.
The fixtures described in this manual are designed to be connected to series circuit,
fed through standard isolation transformers connected to CCR with variable current
from 2.8 A to 6.6 A.
Location of these fittings shall be in compliance with ICAO – Annex 14, STANAG 3316
and FAA.
2
MAIN FEATURES
Each light assembly consists of a removable fixture and a shallow base receptacle.
The fixture is waterproof and designed to withstand aircraft impact and roll-over
loads without damage.
The fixture can be bidirectional type (bidirectional dome provided with two optical
windows and equipped with two lamps that can operate simultaneously or in
independent way) or unidirectional type (unidirectional dome provided with one
optical window and equipped with only one lamp); it is also possible to obtain an
unidirectional light from a bidirectional dome choosing the ‘X – Screened’ option (see
Figure 3); this configuration includes a bidirectional dome and a screen to blind the
unused optical window.
2.1
REMOVABLE LIGHT UNIT
The removable fixture mainly consists of a dome, an optical assembly and a lower
cover.
2.1.1
Dome
The
dome
is made of treated aluminium casting and includes one or two windows to
seat the prisms, complete with gaskets, kept in the proper position by means of a
mounting plate fixed with three screws HSFH M5x12. In correspondence of the
windows, the dome is outside provided with identification letters “A”, “B” and “C”.
Opposite apertures are parallel to the centerline axis and the different toe-in of the
lamps give the correct light beam depending on the kind of fixture: runway edge or
threshold\end light.