TCN Repairs Zaria–Funtua Transmission Line Without Power Outage

The Transmission Company of Nigeria (TCN) has completed live-line maintenance on the Zaria–Funtua 132kV transmission line without interrupting bulk power supply.

The maintenance, carried out by TCN’s Kaduna Region Live-Line Crew from July 4 to July 7, 2026, involved replacing damaged glass disc insulators on selected transmission towers with a combination of polymer and glass disc insulators to improve the reliability and integrity of the line.

According to a statement issued in Abuja on Wednesday by the TCN’s General Manager of Public Affairs, Ms Ndidi Mbah, the affected towers—T14, T17, T40, T63, T78, T175, T177, and T178—each had at least five damaged glass disc insulators that were replaced during the operation.

It stated that by carrying out the work under energised (live-line) conditions, TCN had eliminated the need for a planned outage, ensuring uninterrupted transmission of bulk electricity throughout the maintenance exercise.

It further stated that the successful operation highlights TCN’s commitment to strengthening the reliability, safety, and efficiency of the national transmission network through the deployment of modern live-line maintenance technology.