A fire damaged the Eldorado Park substation in Johannesburg and cut power to several areas. City Power said technicians restored supply at some affected substations the same day after clearing transmission lines of smoke. Mop-up work included removing oil from a damaged transformer and assessing structural damage to the feederboard room. Officials said they suspected sabotage; this report does not confirm that.
Contributing factors
The cause was not established in the report. Officials said they suspected deliberate interference.
Lessons learned
Substation operators should keep physical security under review where assets have been targeted.
Early investigation and site control help when deliberate interference is suspected.
Plans for transformer isolation, oil recovery and structural assessment can limit the impact of a substation fire.
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