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
- release, no ignition
- Macro-region
- Europe
- Country
- France
- Date
- Component involved
- PRD (valve)
- Failure mode
- leak
- Initiating cause
- unknown
- Root causes
- Date entry in HIAD
- 01/01/2022
Facility
- Application
- Hydrogen transport and distribution
- Sub-application
- H2 delivery to customers
- Hydrogen supply chain stage
- All components affected
LH2 rail tanker
- Process temperature range [C]
- cryogenic temperature (below -50°C)
- Process pressure range [MPa]
- low to medium pressure (below 2 MPa)
- Location type
- Open
- Location
- railway or train station
- Operational condition
Emergency & Consequences
- Number of fatalities
- 0
- Number of injured persons
- 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
A leak occurs on the safety valve of a liquid hydrogen wagon. The train is composed of 10 wagons. The train is stopped on the railway several hours to allow degassing of the wagon. Train circulation is interrupted. A safety zone is set up and two gate-keepers are evacuated.
Travellers are transported by buses.
In-depth data
- Release type
- Liquid
- Involved substances (% vol)
- H2 100%
- Probable IGNITION SOURCE
References
- Sources categories
- ARIA
- Reference & weblink
Event description in the French database ARIA
https://www.aria.developpement-durable.gouv.fr/accident/3814/
(accessed December 2020)
