Frequency Control. ZESA and ZESCO NCCs will consult each other and agree on the expected load and station loading patterns each week for the week following. ZESA NCC will issue operating instructions on a day to day basis to stations in Zimbabwe as will ZESCO NCC in Zambia. Minute by minute frequency control will be done by Kafue Gorge or Kariba South depending on which station is agreed to be on the best position to do so. The time error should not exceed plus or minus 10 seconds.
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