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When there is insufficient power station capacity to supply the demand
(load) from all the customers, the electricity system could become
unstable, possibly resulting in a national black-out. To avoid this,
Eskom could be forced to request The EMM to cut supply to all other
customers. This could be done through either Scheduled or Emergency
Load Shedding.
During Scheduled load shedding parts of the network are switched off
according to a predetermined schedule, with the impact spread equitably
all Ekurhuleni suburbs, according to the attached schedules. Shedding
is predictable and allows for customers to plan accordingly.
In exceptional circumstances additional Emergency load shedding could
be required. Control Centres will shed load using emergency switching
in order to protect the network. This will be less predictable and all
customers can expect to be affected at any time.
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