Derby's Street Lighting PFI Contract - Santolina Drive, Oakwood

Seq. No.	Lamp Number	Location	Lamp Type	Watt	Isolation Point
1	99947	OS NO 3	SXPL2	35
2	99948	OPP BRYONY CL	SXPL2	35
3	99949	O/S NO 9	SXPL2	35
4	99950	OS NO 19	SXPL2	35
5	99951	OPP NO 14	SXPL2	35
6	99952	OS NOS 31/33	SXPL2	35
7	99953	OS NO 22	SXPL2	35
8	99954	FP TO WOOD RD	SXPL2	35
9	99955	OS NO 30	SXPL2	35
10	99956	OS NO 34	SXPL2	35

Most of the lanterns along this road were Thorn Beta 5 35 Watt SOX lanterns that dated from the early 1980s, when the road was constructed. This here Beta 5 will be taken into custody for attempting to impersonate a police officer by sticking a blue light on its canopy...actually, the 'light' is a Royce Thompson SC1000 photocell!

A Royce Thompson Tristar 1000 photocell was fitted to this lantern. Just visible within the lantern is the ignitor; proving that this is an integrally-geared version of the Beta 5.

The following column appears to be leaning - in actual fact, the column was straight; it is the photograph that was tilted - this is very unprofessional camera work if I may say so!

Looking towards Columbine Close now, and a pile of Balfour Beatty safety barriers can be seen stored on the grass verge:

A Thorn Gamma 6 dating from the 1990s was installed on a nearby footpath link. This is likely to have replaced another, earlier Gamma 6.

The replacement Iridium was fitted with a photocell that is calibrated to switch on at 35 Lux, instead of 70 Lux that had previously been specified for the PFI.

Another Iridium, awaiting a power supply, was installed nearby. The markings for various underground utilities on the footway resembled ancient tribal symbols to some degree...

Another Gamma 6 was installed on the opposite side of the road; unlike the example seen earlier, this lantern is likely to be original to when the road was constructed. Possibly the lantern's original cell, a Royce Thompson P5, was fitted.

Around the corner, another Gamma 6 was seen; however, this lantern had been fitted with an SC1000 cell. Notice that the space available for installing a column at this location is extremely restricted!

The new column on the footpath to Wood Road appeared to tower over its outgoing counterpart...then again, it did! A WRTL Arc lantern is seen fitted to the smaller column; this can only have been fitted a maximum of two years before these photographs were taken, as the Google Street View image (dating from approximately summer 2008) still shows a Gamma 6 attached to this column - see below.

An OSRAM 70 Watt SON lamp was fitted in the Arc - the presence of a barium getter at the lampholder end of the lamp confirms this.

This screenshot (taken from Google Street View) shows the Gamma 6 when still installed on this column:

The final column pictured here was located within a garden. In actual fact, it probably was installed within the highway boundary, even though the boundary line is not marked on site. In order to reduce the excavation at this location, the new column will be erected in the hole vacated by the outgoing column when it is removed - hence the 'In/Out' marking on the carriageway.