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Widespread power failures on the West Rand and in northern Johannesburg could take up to three days to resolve because of an unprotected strike.
Johannesburg City Power said on Thursday that they are unable to timeously attend to calls, resulting in a service backlog in affected areas.,
A few hundred City Power staff downed tools on Wednesday because they were unhappy about a new shift system the power distributor was implementing.
City Power said that the strike was not union-led.
Meanwhile, generators are reportedly powering the Houghton home of former president Nelson Mandela which is also hit by the power outage.
