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ZSSK Cargo 183 035-5flagStrba Strba

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©  Apr 28, 2012


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NIKON D60

Exposure: 25/10000
Focal length: 50 mm
ISO: 100
Time: 08:52

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In the former USSR for a overhead wire of 3 kV DC the double wire is used. Section in square millimeters for this current size. Why here one wire?
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