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Eskom vows Koeberg reactor will return to service at weekend

Cape Community

Cape Town - Eskom's Koeberg nuclear power plant outside Cape Town will return to full service on Sunday after a fault exacerbated load-shedding this week, the power utility said on Thursday.

Unit 1 at South Africa's only nuclear power plant was taken offline by operators on Tuesday after its cooling capability was compromised by a faulty pump.

The pump was not able to reduce heat because a drum filter was clogged by marine life, Eskom said.

"The circulating cooling water system pump that tripped was due to low level in the suction pit as a result of the drum filter that was clogged by an acute ingress of marine life (jellyfish and fish)."

It added that normally Koeberg units can withstand the impact of one cooling water system pump failing, provided that operators reduce power to below 60 percent and ensure that the temperature of various secondary components stabilise.


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