A 132kV trip and panels caught fire at the Pyramid substation, in Tshwane.
In an update on Wednesday morning, around 6am, the City of Tshwane, said the fault was isolated, but the sub transmission and maintenance team, are currently attending the outage.
The outage has affected areas around Pyramid, including Pumulani and parts of Watloo substations.
The restoration time is not yet known, since the team has to assess the extent of the damage.
Picture: Supplied