Derby's Street Lighting PFI Contract

Markeaton Street, City Centre

The equipment being removed consisted of the following items in 1997:

Seq. No. Lamp Number Location Lamp Type Watt Isolation Point
1 30834 ADJ NO 154 NUNS ST SXPL3 35  
2 30835 OS NO 27 SXPL2 35  
3 30836 OS NO 40 SXPL2 35  
4 30837 OPP NO 58 SXPL2 35  
5 30838 OS NO 72/74 SXPL2 35  
6 30839 OS NO 107 SXPL2 35  
7 30840 OPP NO 115 SXPL2 35  
8 30841 OPP NO 129 SXPL3 35  
10 30843 O/S NOS 137/139 SXPL2 35  
11 30844 OS NOS 145/147 SXPL2 35  
12 31460 OS NOS 153/155 SXPL2 35  
13 31461 OS NOS 159/161 SXPL2 35 Y
14 31462 ADJ GAS GOVERNOR SXPL1 35  
15 31463 OS ALLOTMENTS SXPL1 35  
17 31465 NONE STATED SXPL1 35  
18 31466 NONE STATED SXPL1 35  
19 31467 ADJ NORTH LODGE SXPL1 35  
20 31468 OS NORTH LODGE SXPL2 55  
21 31469 FP OS NORTH LODGE SXPL2 35  
22 31470 FP OS WOOD SXPL1 35  
23 31471 FP OS WOOD SXPL2 35  
24 31472 FP OS WOOD SXPL2 35  
25 31473 FP OS WOOD SXPL2 35 Y
26 31474 FP OS LAKE SXPL1 35  
27 98485 FP OS LAKE SXPL2 35  
28 84899 F/P OS LAKE SXP2 35  
29 84900 CENTRE OF F/BRIDGE SXPL2 35  
30 106531 JUNC MERCHANT ST FL 8  
31 113492 DESIGN FL 8  
32 113490 DESIGN FL 8  
33 113491 DESIGN FL 8  

The following photographs were taken on Sunday, 16th January 2011. Only the lighting from sequences 20 to 28 (above) is covered on this page.

A 6 m column fitted with an SGS 252-size Iridium was set to be replaced with...a 6 m column fitted with an SGS 252-size Iridium! The outgoing column used to be fitted with a 55 Watt SOX lantern.


The outgoing installations on the adjacent footpath all consisted of Abacus 5 m base-hinged tubular steel columns; all supporting Thorn Beta 5 35 Watt SOX lanterns. The replacement columns are all 6 m Mallatite mid-hinged tubular steel products.


The replacement Iridium lanterns are of the 'open reflector' variety; this has led to an internal component falling into the lantern's bowl.


This Beta 5 still looked relatively new, although an airgun pellet hole in the lantern's bowl had resulted in a large amount of detritus gathering around the lamp; significantly reducing the lantern's useful output.


The second Beta 5 sported a deeper bowl and was in a much cleaner internal condition.


The path then forked, although both sections were lit.


The outer bulb of the lamp fitted in this Beta 5 was completely black:


This Beta 5's bowl was also in need of cleaning - the new lighting here ought to brighten up the footpath considerably! A photocell was not yet fitted to the replacement lantern at the time of photographing.



The first Beta 5 on the right-hand side of the fork was another that sported a deep bowl.


The lantern appeared to be slightly damaged, as evidenced by its tilt on the bracket. Although the bowl may have been of polycarbonate construction (due to its slight yellow tinge), it may actually have been another acrylic bowl that simply required cleaning.


The following Beta 5's bowl had been secured using a length of insulation tape.


The new column was still awaiting its lantern at this time.


I had previously photographed the next installation in 2006, when the lantern had been vandalised.


The lantern wasn't in the best of conditions five years later - its taped-on bowl was broken, and the lamp did not work at night. Given that the column was set to be replaced almost imminently at this stage, repairs are now highly unlikely.


Thanks to the proximity of the adjacent footbridge, this column (and its replacement) could be seen from a rather unusual (unless you have access to a platform vehicle or are exceptionally tall!) angle.


Beginning in June 2017, a number of lanterns in Derby City Centre that were fitted new as part of the PFI replacement schemes a few years previously were replaced with OrangeTEK 'AriaLED' lanterns, as an energy-saving measure. The example seen immediately above saw such an exchange occur.


Only 10 LEDs are employed in this lantern; however, as the modules that contain them are configured for 20 LEDs, the front section contains 10 blank positions.


Once again, the adjacent bridge proved useful in photographing the lantern from a higher position than would be possible ordinarily.


This above-lantern view reveals a small thumbscrew on the top of the canopy.


An identification label exists behind the NEMA socket.


The Royce Thompson SC1000/SAV photocell fitted to the Iridium employed here previously has been re-used with this lantern.






© 2002 - English Street Lights Online