Event
- Event ID
- 279
- Quality
- Description
- Explosion in generator area, thought to be hydrogen leak as a result of radial lead seal failure. Extensive plant damage.
- Event Initiating system
- Classification of the physical effects
- Hydrogen Release and Ignition
- Nature of the consequences
- Macro-region
- Europe
- Country
- United Kingdom
- Date
- Main component involved?
- H2 Coolant System (Rotating Seal)
- How was it involved?
- Leak & Formation Of A Flammable H2-Air Mixture
- Initiating cause
- Unknown
- Root causes
- Unknown (No additional details provided)
- Root CAUSE analysis
- The reason for the radial lead seal failure is not given. Root cause also unknown.
Facility
- Application
- Power Plant
- Sub-application
- unspecified
- Hydrogen supply chain stage
- All components affected
- Generator system
- Location type
- Unknown
- Operational condition
Emergency & Consequences
- Number of injured persons
- 0
- Number of fatalities
- 0
Event Nature
- Release type
- gas
- Involved substances (% vol)
- H2 100%
- Presumed ignition source
- Not reported
- Deflagration
- N
- High pressure explosion
- N
- High voltage explosion
- N
References
- Reference & weblink
Event description provided by HSE, original source confidential
JRC assessment
- Sources categories
- HSE
