Summary
An electrical substation fire near Heathrow Airport was likely caused by moisture entering a mechanical device, leading to a power outage. This incident forced Heathrow to close temporarily, affecting thousands of flights and journey plans.
Key Facts
- An electrical substation fire happened near Heathrow Airport on March 20.
- The fire was likely due to moisture entering a bushing, which is a device that helps energy flow between electrical parts.
- The moisture caused a short circuit, sparking a fire.
- The power outage impacted 66,919 homes and businesses.
- Heathrow Airport had to close, causing thousands of flight cancellations.
- Around 270,000 journeys were affected due to the closure.
- The National Energy System Operator investigated the cause of the fire.
- The UK energy secretary ordered the investigation.
