A brief history of British pylons, or electricity transmission towers to be specific. From the inception of the National Grid in the 1920s, through the supergrid upgrades from 132 kV to 275 kV and 400 kV, to the T-Pylons in the present day. Also looking at the common technical features of a high-voltage overhead power line, the power capacities of them and what is involved in calculating that.

Sources:
Transmission and Distribution Electrical Engineering (Colin Bayliss / Brian Hardy)
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CEGB- 'Power To The People' (1985) [ Ссылка ]
Various other National Grid and other publications
Newsreels credited in video
With special thanks to the engineers who entertained my dumb questions while having other things to do

Music: Aaron Kenny - English Country Garden, Half Cool - Next Steps, Half Cool - Peachy, Patrick Patrikios - Know Myself (all YouTube audio library)
Karl Casey @ White Bat Audio - Slave To The Grid

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