Event
- Event ID
- 262
- Quality
- Description
- A leak occurred on the safety valve of a train wagon transporting liquid hydrogen. The train was composed of 10 wagons. The train was stopped on the railway several hours to allow depressurisation of the wagon. Train circulation was interrupted. A safety zone is set up and two gate-keepers are evacuated. Travellers travelled further by buses.
- Event Initiating system
- Classification of the physical effects
- Unignited Hydrogen Release
- Nature of the consequences
- Leak No Ignition (No additional details provided)
- Macro-region
- Europe
- Country
- France
- Date
- Main component involved?
- Prd (Valve)
- How was it involved?
- Leak & Formation Of A Flammable H2-Air Mixture
- Initiating cause
- Unknown
- Root causes
- Unknown (No additional details provided)
Facility
- Application
- Hydrogen Transport And Distribution
- Sub-application
- H2 rail transport
- Hydrogen supply chain stage
- Hydrogen Transport (No additional details provided)
- All components affected
- safety valve
- Location type
- Open
- Location description
- Railway Or Train Station
- Operational condition
Emergency & Consequences
- Number of injured persons
- 0
- Number of fatalities
- 0
- Post-event summary
- The train was stopped on the railway for several hours, to allow depressurisation of the wagon. Train circulation was interrupted. A safety zone is set up and two gate-keepers are evacuated. Travellers travelled further by buses.
- Emergency action
- The driver immediately isolated the hose by shutting off the trailer manifold valve.
Event Nature
- Release type
- Liquid
- Involved substances (% vol)
- H2 100%
- Presumed ignition source
- No ignition
- Deflagration
- N
- High pressure explosion
- N
- High voltage explosion
- N
References
- Reference & weblink
Event description in the French database ARIA<br />
https://www.aria.developpement-durable.gouv.fr/accident/3814/<br />
(accessed December 2020)<br />
JRC assessment
- Sources categories
- ARIA
