Parts of Ilocos Sur may have a power interruption lasting up to eight hours on Saturday, June 25, the National Grid Corp. of the Philippines said.
In its advisory, the NGCP said this is due to preventive and corrective maintenance activity affecting areas serviced by ISECO.
The NGCP said the scheduled power interruption is from 7 a.m. to 3 p.m.
Affected areas include those serviced by ISECO;s Candon and Santiago Substations.
The NGCP said this is due to the replacement of selected line wood pole structures and hardware along San Esteban-Candon 69-kilovolt transmission line.