Derby's Street Lighting PFI Contract

John 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	29240	1 FROM SIDDALS RD	SXPL2	55
2	29241	O/S M. & B. MOTORS	SXPL3	55
3	29242	OPP NEW ST	SXPL3	55
4	29243	1ST PAST NEW ST	SXPL3	55
5	29244	2 PAST NEW ST	SXPL2	55
6	29245	3 PAST NEW ST	SXPL2	55

The following photographs were taken on Sunday, 24th October 2010:

Many of the new columns were installed away from the outgoing columns; presumably, the new locations were found to allow for a more uniform light distribution than the previous column positions did.

Most of the outgoing lanterns were GEC Z9538s.

This somewhat abstract view of the replacement Iridium clearly shows the PFI-specification Royce Thompson SC1000 35 Lux photocell.

The solar-powered parking meter will no doubt benefit from having the new Cosmo-White lantern installed alongside it!

The bowl fitted to this Z9538 was not original - it was actually a second-hand bowl from a Simplex Aries. Owing to the different methods of securing an Aries bowl in comparison to a Z9538 bowl, a length of insulation tape has been wrapped around the assembly, in a vain attempt to hold the bowl in place.

The installation outside the cement works was one of the few to see the new column installed near the outgoing column.

A narrow reflector surrounded the lamp in the new lanterns:

The new column here was installed opposite the aptly-named New Street:

A newer column supporting a Thorn Beta 2 was installed after the junction.

A Philips SOX lamp was fitted in this lantern.

A final Z9538 appears in silhouette below.

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