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Typical light towers in Tricity

Typical light towers in Tricity

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Many Polish cities have street lighted by fixtures put on big light towers called in Poland kwiaty (flowers). Each region has distinct style for the towers. In Tricity the most popular are those with ten arms and a ring around the site where top is attached to the mast. Originally all ten arms were present and at the end of each one there was a OURW2250 fixture for 2 250W MV lamps so there were 20 250W MV bulbs per tower. In early nineties most of them lost 4 arms and sodium fixtures were put on the 6 arms which were left, various fixtures were used.

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Filename:DSC17782.JPG
Album name:trojmiejski / Lanterns in Poland
Keywords:Miscellaneous
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Date added:Jun 03, 2013
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Date Time:2013:05:17 17:54:49
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Al_M
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GEC Z9464 90w SOX/LPS


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Jun 03, 2013 at 03:19 PM Author: Al_M
Good description and history .

Traffic signals & street lighting engineer. Please bring SOX/LPS back Downunder!!

trojmiejski
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Jun 05, 2013 at 09:40 AM Author: trojmiejski
Absolute record was achieved in Bydgoszcz city, there were towers with 20 OURW2250 fixtures so with all 40 250W MV lamps one such tower consumed 10kW! Some time later they were modified to 10 OURW2250 and 10 OUS400 (for 400W HPS lamps) and even later 10 arms were cut leaving only OUS400 fixtures.
Here are photos of them in full glory: http://tinyurl.com/nyfyqhd
dor123
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Jun 05, 2013 at 10:09 AM Author: dor123
Who needs lampposts with 6-10 lanterns for urban roads?
Here in Israel, the lampposts have lampposts with two lanterns in case of two corresponding roads, lampposts with a single lantern for single roads.
Sometimes we have lampposts with 3-4 lanterns at junctions.
6-10 lanterns are usually used in highmasts, and these are usually special lanterns, often american made, but sometimes local made, that uses 400-1000W HPS lamps. They located sometimes at urban junctions at city centers, but usually on intercity roads.
In Haifa and Kiryat Ata, we have also lanterns that installed on an arm to regular electricity poles, in street that there is an electricity infrastructure based on overhead cables.
In Haifa, the most popular lanterns in the 80's, were the AEG Koffer 250 and old generation Koffer 150 mostly with two 250W or 125W MV lamps, and some new generation Koffer 150 with 100-150W HPS lamps.
In the 90's, Koffer 250 and old generation 150, were upgraded to 150W and 100W HPS lamps or being replaced by newer generation Koffer 150 with 100-150W HPS lamps.
Near the end of the 90's, AEG (And later Philips) Stradasole 400 and 530 with 150W HPS lamps, were appeared, and replaced many Koffer 150 lanterns.
Recently, various lanterns with flat lens (Known as cutoff optics [Or full cutoff in the US]) with 250W HPS lamps, begins to replace these German lanterns, including Fivep Oyster (Italy), Thorn Alpha 2000 (British), AEC Lunoid (Italy), Grechi Lumada (Italy), among others.
In Kiryat Ata, in the street where I lives (Lilenblum 13, Kiryat Benjamin neighborhood), There are AEG/Philips Triangel lanterns with 150W HPS lamps, both tubular clear and Osram NAV-E 150W. Most of them, as well as most of the german lanterns of the Koffer range of AEG in Haifa, have local made equipment of Eltam, Shteinitz and others. Eltam is the only gear manufacturer that remained in Israel.
In intercity roads, most of the lanterns are american (GE M400A2 or current M400A/R with flat lens (FCO) and 400W HPS lamps, but there are AEC Lunoid and Grechi lumada, as well).

I"m don't speak English well, and rely on online translating to write in this site.
Please forgive me if my choice of my words looks like offensive, while that isn't my intention.

I only working with the European date format (dd.mm.yyyy).

I lives in Israel, which is a 230V, 50hz country.

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Jun 05, 2013 at 02:46 PM Author: trojmiejski
Light towers pros are that fewer of them are needed to illuminate enviroment, for example five towers instead of ten 2 fixture lampposts, they illuminate greater area consistently and tram wires can be attached to them without a problem. It's important to remember that the light tower idea came in the time of fixtures for MV lamps which often didn't had good optics so light from many fixtures placed high was more consistent than that from single fixtures placed low, in the second case light ladder and other unwanted effects could be present in various degree depending on fixture model. Another thing is low efficiency of MV lamps so placing many in one place was a way to illuminate street with serious amount of lumens. Last thing important thing is such big masts were good propaganda factor of country's prosperity.
Another interesting thing is that as I said before in Bydgoszcz there were towers with the biggest amount of fixtures per tower with power consumption of 10kW. However the most power hungry towers were present in Warsaw, those had 12 OUR-1000 fixtures, each one for 1kW MV lamp so total power consumption was 12kW! I'm not counting losses on ballast, if counted, even more power was consumed.
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