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The wind will cause the wires to "sing".
Which reminds me of Alan Lamb (not the cricketer) and his recordings featuring the sounds of telegraph wires in the Australian outback.
Most of his recorded work uses a stretch of abandoned telegraph poles that he purchased from the Australian telephone company, christening his instrument the Faraway Wind Organ, on which he made recordings for nearly twenty years before the wires were vaporized by lightning and termites devoured the poles. His recordings were not as simple as putting up microphones to record the wind. He attached contact microphones to every possible surface, capturing ants and spiders walking on the wires, cows brushing against the poles, and eventually interactions of his own devising. He built massive bows for the wires, which he has described, but without providing any photographs.
http://www.sounddesign.unimelb.edu.au/web/biogs/P000277b.htm
https://classicaldrone.blogspot.com/2009/05/drone-classics-night-passage.html
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Five-Hats
The wind will cause the wires to "sing". The whine is just the noise powerful electric equipment often makes, most audible when you're close to it. So the imagery here is of him imagining a link to her through the natural/unnatural sounds of his everyday (and very solitary) work. It's not a creepy song.