We may not have any wires but, just next to Wokingham station, we do still have a few poles. They had been hiding in the dense woodland that had been allowed to invade the slopes by the railway. As you can see, a lot of trees of similar girth were cut down and I was impressed that the chainsaw brigade could spot which ones were poles and leave them - even when camouflaged by ivy leaves.
Was there ever a siding or head shit there, these types of poles on the
SR▸ with only 2 insulators often had lighting on them, or it could have been an electricity supply for the local electricity company / board
Exploiting the zoom effect in that photo, I can see more than by eye. For a start, the nearer pole is actually reinforced concrete, so might have won a game of scissors-paper-stone with a chainsaw. The two behind it do look round and wooden, though hard to see in detail. And why one has a ladder fixed to it, apparently wrapped in vegetation, who knows?
And while there's only the two running lines here (between the skew bridge in the picture and the footbridge the picture was taken from) in any of the old maps I've looked at, some time between the 1930s and 1960s the entry line for the goods yard at the station was extended into this section. There had always been an unused space for it under the footbridge, oddly.
The ladder would indicate lighting use
Poles for floodlighting usually had only two wires, possibly more in very extensive installations. If arc lamps were used there was usually a winch to lower the whole lighting unit to near ground level for attention, as this was needed frequently. For filament lamps, or later mercury lamps, a ladder was often provided for lamp replacement.
A few installations used series lighting, whereby special lamps of low voltage were used in series on a high voltage supply. Never popular in the UK▸ , more of a USA thing.
Typical UK railway siding / walkway light would have been enamelled metal lampshade.
I am so happy I no longer have to repair / maintain such lighting any longer
