Transformer explosion reported to have knocked out power in Hyannis

What happened

At about 7.30pm on 14 August 2024, a transformer reportedly exploded on Phinney's Lane in front of the Cape Cod Beer Company in Hyannis, Massachusetts, according to Hyannis News. Police and firefighters responded. The outlet reported two pole fires in the area. When it arrived, one had self-extinguished and the other was still burning. The explosion reportedly ignited several small grass fires, which were quickly dealt with. Barnstable Police shut down Phinney's Lane traffic in the area of Attucks Lane until Eversource could arrive, which was just before 8.00pm. The explosion reportedly knocked out power in parts of Hyannis and Barnstable Village, and traffic lights went dark for a period of time.

Contributing factors

Not reported. The source does not give a cause for the transformer explosion or the pole fires.

Lessons learned

1. Utilities should inspect pole-mounted transformers and their connections for overheating, leaks and deterioration, since a transformer failure can produce both an explosion and pole fires.
2. Emergency services and utilities should agree a joint plan for isolating power and closing roads quickly, so that scene control does not depend on a single responder.
3. Where a grid fault knocks out traffic signals, police should plan manual traffic control early to limit disruption and risk to road users.

More lessons on electrical protection and isolation, from every incident on the register.

Source

hyannisnews.com