Derby's Street Lighting PFI Contract
Burton Road, Littleover (Part Two)
The following photographs were taken on Saturday, 12th February 2011.
An integrally-geared Thorn Alpha 3 running a 250 W SON-E lamp was located adjacent the second of two pedestrian crossings installed on this road.
The lantern was fitted with a blue-cone Royce Thompson SC1000 photocell - the type used in Derby from the PFI's commencement until September 2010.
This was followed by another Alpha 3; this example apparently ran a 400 W SON-E lamp.
The next column had been replaced in the mid-2000s. A Holophane Syracuse Medium (QSM) lantern was fitted.
Both the outgoing and new columns are 10 m in height.
An identical column setup to that pictured above was installed outside the former Ken Ives Motors car showroom. After this, the lighting reverted to integrally-geared Thorn Alpha 4s; each running 135 W SOX.
Again, the columns are 10 m in height.
This outgoing column was largely surrounded by trees; hence, the new column being installed a few metres away.
One of the rear bowl clips on this lantern was missing.
Another replacement column then followed. This column was also due for replacement as part of this scheme, although its own replacement column is not shown here.
A general view back down the road.
The long outreaches of the brackets seemed to complement the equally long Alpha 4 lanterns.
Chain Lane leads off in the background.
The signlight units around the roundabout had already been replaced and were operational - albeit, only a few hours prior to these photographs being taken.
The Alpha 4 seen across the roundabout is seen again below - one of the front bowl clips was damaged; with the result that a length of insulation tape had been used to secure the bowl.
The reason for the earlier column replacements seems to have been due to corrosion - although not particularly obvious here, this column's shaft was heavily rusted.
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