Specification Clearside 8254/5
USE
Side road lighting; the lantern is designed for mounting at heights between 15 ft and
18 ft and at a spacing of 100-120 ft.
The lantern is very suitable for use on housing estates, especially in new towns.
TUBES
Two 2 ft. 40W Osram fluorescent tubes
MOUNTING
The Z8254 side entry lantern requires not less than 5 in. of horizontal unthreaded 1.1/4 in.
B.S.P. When fully home two 7/16 in. Allen-type grub screws grip the barrel. The design allows
for the lantern to be elevated slightly if this is required to add to the appearance of an
installation.
The Z8255 top entry lantern requires 2 in. of threaded 1.1/4 in. B.S.P.
LANTERN BODY
One-piece silicon aluminium alloy die-casting. The gear and wiring necessary to operate the tubes
is fitted to a removable tray screwed to bosses in the body casting. The body also carries the
two lampholder supports.
An earthing screw, porcelain terminal block and porcelain cable cleat are provided.
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OPTICAL SYSTEM
Light control is obtained by two 'Perspex' refractor plates. The prismatic sides of the plates
are bonded, one to each inner side of a 'Perspex' bowl. Both inner and outer surfaces of
the bowl are smooth for easy cleaning. A white over-reflector is a secondary component of the optical
system. The inside of the body and the ends of the enclosing bowl are given a matt finish
to diffuse stray light and give the lantern a pleasing appearance. The enclosing bowl is held to
the lantern body by stainless steel toggle clips and toggle hinges. A tropicalised felt gasket
between the body casting and bowl ensures a weatherproof seal when the lantern is closed.
WEATHERING FINISH
The alloy used is specially selected for its resistance to corrosion. Further protection is
obtained by the use of pre-treatment primer and silver top coat, stoved on.
Export packing details on application
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