Local Philips Iridium2s

An evolution of Philips' incredibly popular Iridium lantern, the Iridium2 first appeared in Derby towards the end of 2011, when a number of examples were installed on the A52 dual carriageway to the east of the city; the existing columns supporting Thorn Triumph 2 lanterns being replaced as part of the City's Street Lighting PFI. The lantern would not be used again until early 2014, when two major interchanges on the A38 dual carriageway were relit with Iridium2s.

An example of a new twin-arm column fitted with a couple of Iridium2s on the A52, in November 2011.

 

The new lanterns are fitted with Royce Thompson SC1000/SAV 35 Lux photocells.

 

There is no bowl option available for this lantern; only a flat glass cover.

 


Further along the A52, at its junction with the A38 at the busy Markeaton roundabout, new octagonal sheet steel columns supporting Iridium2s were installed in early 2014.

 

Unlike the above examples, these lanterns are fitted with Telensa radio nodes on 20 mm diameter conduit threads, in order to allow for remote switching, as well as dimming during quieter periods of the night.

 

These examples fall under the ownership of the Highways Agency; however, a couple of standard Iridiums (SGS 254s) on Ashbourne Road are visible in the background - these are owned and maintained by the Local Authority.

 

As this close-up proves, the lantern isn't quite level on its bracket.

 

The unpainted galvanised finish of the Stainton columns glimmered slightly in the September sunlight.

 

Although these lanterns are mounted side-entry, they can instead by installed post-top.

 

The blanked-off post-top entry position is visible on the lantern's underside. Also visible here is the SON-T lamp within the lantern's optic.

 
 

A little further along the A38, from the stretch between the Burnaston exit to its junction with the A50 near the Toyota car factory, Iridium2 lanterns can also be seen. These replaced remotely-geared Philips MA 60 180 W SOX lanterns in late 2014 / early 2015.

 

These lanterns were direct replacements for the MA 60s; the work being carried out during off-peak lane closures.

 

Once again, radio receivers are fitted to the new lanterns.

 

The low-profile optic is apparent here.

 

The column on the right, below, is the last one on this particular circuit. The columns after this are fed and switched from elsewhere. At the time of photographing, in September 2015, these columns still retained Thorn Pilote T2 lanterns, dating from the early 1990s.

 

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