Document UT-MT-0573
Page 13 of 28
Edition 03/13/2012
Supersedes edition 02/09/2010
SLTH – SEMI-FLUSH THRESHOLD LIGHT
INSTRUCTION MANUAL FOR USE, INSTALLATION AND MAINTENANCE
3.2.
SHALLOW BASE
The shallow base (mounting system B) (fig.7) consists of a treated aluminium casting
containing an electrical feed-thru system to connect the power cables, consisting of one
cable lead with receptacle incoming inside the base through one cable gland. The cable
lead with receptacle consists of two single-pole leads, size 2.5 mm
2
, 1 m long, with FAA L-
823 receptacle.
The letter "A" is printed inside the base for cable leads identification.
The base is equipped with an internal grounding screw with yellow-green cable lead, size
2.5 mm
2
, 0.250 m long, with female faston terminal for quick connection to the
corresponding of the fixture. An additional external grounding screw is provided close to
the cable entry.
The shallow base is designed for cementing in place by means of epoxy-resin in a hole
drilled in the pavement.
The fixture has to be fastened to the base by means of six hex cap screws, complete with
external silicon-coated lock-washer.
An O-Ring (separately supplied) must be placed between base and fixture for
watertightness (fig.7 - n°7) placed in the relevant shallow base groove.
The 12” shallow base is 320 mm in diameter and 150 mm high.
On request, special bases without cable lead can be supplied, provided with holes suitable
for conduit connections.
Inside the base two suitable holders (fig.7 - n°9) are provided to properly sustain the
secondary power cable, in case of this cable is inside incoming through a conduit.
1 - Cable gland for cable entry
2 - External grounding screw
3 - Cable leads with socket
4 - Internal grounding screw
5 - Grounding cable with female
faston terminal
6 - Letters “A” for cable lead
identification
7 - O-Ring between fixture and base
8 - Threaded inserts for fixture
fastening by bolts
9 - Power cable holders
Figure 7 – Standard 12” shallow base (mounting system “B”)
