Z8522 Cut Off
|
Z8536 Semi Cut Off
|
Lamp
250W or 400W Truelite MBF/U colour corrected lamp. 310W, 360W or 400W Solarcolour
HPS lamp.
Mounting
A side entry socket is provided to accept a 5 in. length of unthreaded 1¼ in. B.S.P.
Lampholder
Porcelain G.E.S wired with heat-resisting insultated wire to a porcelain terminal block.
Construction
As Z8520 cut off and Z8526 semi cut off but with provision for
housing the lamp control gear. The reflector pressing is supported by an end casting
enlarged to house the control gear.
The underside of the casting is sealed by a hinged door giving access to the wiring connections
and the hardened screws that secure the lantern to the column bracket arm. The cast socket for
the bracket arm spigot has a barrier at the lantern end to prevent condensation entering the
gear compartment.
Weathering Finish
The alloy used is specially selected for its resistance to corrosion. Further protection
is obtained by the use of a pretreatment primer and stove enamel top coat.
Wind Area And Weight
|
Z8522CO |
0.52 sq.M. (1.64 sq.ft.) |
16.8kg (37lb) |
Z8536SCO |
0.212 sq.M. (2.28 sq.ft.) |
14.5kg (32lb) |
Illumination Data
To British Standard 1788 and CP1004.
Group A Mercury Lanterns
Truelite And Solorcolour Lanterns
Z8521 Cut Off
|
Z8527 Semi Cut Off
|
Lamp
250W, 400W or 700W Truelite MBF/U colour corrected lamp. 310W, 360W, 400W or 600W Solarcolour
HPS lamp.
Mounting
Top entry threaded 1¼ B.S.P. and complete with lock nut.
Lampholder
Porcelain G.E.S wired with heat-resisting insultated wire to a porcelain terminal block.
Construction
The lantern is suspended centrally by an aluminium alloy casting secured to the top of the reflector
pressing. The casting has a return on the inside to prevent condensation running down the supporting
barrel and entering the lantern.
A metal heat shield is fitted to protect the incoming supply cables.
Weathering Finish
The alloy used is specially selected for its resistance to corrosion. Further protection
is obtained by the use of a pretreatment primer and stove enamel top coat.
Wind Area And Weight
|
Z8521CO |
0.106 sq.M. (1.14 sq.ft.) |
6.12kg (13½lb) |
Z8527SCO |
0.17 sq.M. (1.84 sq.ft.) |
3.85kg (8½lb) |
Illumination Data
To British Standard 1788 and CP1004.
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