Z8522 Cut Off

Z8536 Semi Cut Off

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

Illumination Data
To British Standard 1788 and CP1004.

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 Wind Area 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.