188B. Off Road One, Winsford Industrial Estate, Wharton, Clive, Winsford, Cheshire With thanks to Dwight for informing me of these Survivors. Installed alongside a roadway belonging to one of the businesses on the Industrial Estate are four 25 ft (8 m) Stanton 8 concrete columns, equipped with F-type brackets and GEC Z8430CM lanterns. These would be intended for running a 250 - 400 Watt MBF (mercury vapour) lamp, but may have become disused by the time of photographing in September 2024, as contractors were working on the site, and had removed a fifth identical column already. Typically, this was nowhere to be seen, but the Z8430CM was missing its bowl anyway - according to historical Google Street View imagery, the bowl was hanging in 2009, but had disappeared completely by 2016, revealing an elliptical lamp within the lantern.
The columns are all installed on the same side of the road, with high voltage electricity conductors situated above them. This arrangement would never be permitted in the modern era, with the columns probably having to be shorter in height, and base-hinged, to avoid entering any proximity zones for the overhead conductors.
The installations are showing their age, however, with large amounts of concrete having broken off every bracket.
This type of glass prismatic bowl confirms that they are Z8430CMs, as original Z8430s employed a different type of bowl that was optimised for tubular medium pressure mercury (MA) lamps; the bowl was redesigned for the so-called Corrected Mercury lamps, which produced a different type of light distribution.
The main difference is that the Z8430 bowl employs a series of concentric ovals to serve as refractors, whereas the later bowl type features horizontal and vertical refractor prisms.
CLICK HERE TO MAKE A MONETARY DONATION
© 2002 - English Street Lights Online