THE sudden trip-off of electric transmission lines caused Tuesday's less than an hour power blackout at the coverage area of Central Negros Electric Cooperative (Ceneco).

Cheryl Tortal, public relations officer of Ceneco, said that Tuesday's total blackout was an unscheduled power interruption triggered by a fault or trouble in the transmission lines of the National Grid Corporation of the Philippines (NGCP).

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NGCP acts as the electric power super-highway through which electric power generated by power generation companies are transmitted to electric distribution utilities like Ceneco.

The power interruption occurred at around 12:00 noon. After more than half an hour, power supply in some areas was restored.

Tortal said that they were only informed by NGCP that Amlan Lines 1 and 2 tripped off.

Amlan Lines run from the Palinpinon Geothermal Power Plant and passes through Dumaguete to the service areas of Ceneco in Bacolod City, Bago City, Murcia, Talisay City and Silay City. (TED)