TCN Completes Live-line Maintenance on Zaria–Funtua Transmission Line
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TCN Completes Live-line Maintenance on Zaria–Funtua Transmission Line
By Alabidun Shuaib AbdulRahman
The Transmission Company of Nigeria, TCN, says it has successfully completed live-line maintenance on the Zaria–Funtua 132kV transmission line without interrupting bulk power transmission.
TCN disclosed this in a statement obtained by INCNews247 on Thursday, noting that the maintenance was carried out by its Kaduna Region Live-Line Crew between July 4 and July 7, 2026.
According to the company, the exercise involved the replacement of damaged glass disc insulators on selected transmission towers with a combination of polymer and glass disc insulators to improve the integrity and reliability of the transmission line.
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It stated that the affected towers included T14, T17, T40, T63, T78, T175, T177 and T178, with each tower having at least five damaged glass disc insulators.
The company explained that the maintenance was executed under energized, or live-line condition, eliminating the need for a planned outage and ensuring uninterrupted transmission of bulk electricity throughout the operation.
TCN noted that the successful completion of the exercise demonstrated its commitment to maintaining a safe, reliable and efficient transmission network through the deployment of modern live-line maintenance techniques.
The company added that the adoption of live-line maintenance allows critical repairs to be carried out without disrupting power supply, thereby enhancing grid reliability and improving service delivery to electricity consumers.
