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At times of electrical emergency, the power is not all that is lost

Six years ago this month, an all-but-forgotten power crisis arose in Africa that should have taught the developed world a lesson. One man - planning to cut it up into bracelets to sell to tourists - unbolted a steel strut from a 27-metre mast holding up part of the power line connecting the Kafue Gorge hydroelectric power station in Zambia with the southern African electricity grid. As a result, the mast collapsed, bringing down two more masts and starting a chain reaction that eventually ...

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