Faulty insulator causes outage in Taichung residential area

What happened

Shortly after 00:29 on 15 November 2026, homes in a residential area near an industrial zone in Wuqi District, Taichung City, lost power. Residents on local social media suspected that a transformer box had exploded. Taipower's Central Regional Office said the cause was a defective supply component, a pin insulator, on the distribution equipment serving the streets of Ziqiang 1st and 2nd Street and Zili 1st and 2nd Street. Supply returned after six seconds.

Because the faulty equipment needed replacing, Taipower then carried out a planned outage for repair work, with extra crews brought in. Power was fully restored by 04:30. Taipower's account, as reported, did not mention an explosion, and the report did not give the number of customers affected.

Contributing factors

Taipower attributed the outage to the defective pin insulator. The source does not say why the component failed or when it was last inspected.

Lessons learned

1. Inspect pin insulators and other distribution fittings on a fixed schedule.
2. When a fault clears within seconds, check the faulty equipment before relying on automatic restoration, because a brief restoration can mask a developing defect.
3. Plan equipment replacement so that repairs are combined into one planned outage with advance notice, and publish a prompt explanation so residents do not assume an explosion.

More lessons on maintenance, inspection and ageing assets, outages, backup supply and restoration, from every incident on the register.

Source

news.ltn.com.tw