Event
- Event ID
- 755
- Quality
- Description
A minor fire broke out following a gas leak from hydrogen cylinders. A truck was returning to the base company after offloading hydrogen cylinders at a factory. The driver lost control and crashed against a pillar on a bridge over a river and overturned. Police brought a crane from to right the vehicle but as the lift started, the truck rolled backwards, the crane's wire rope snapped, damaging the valves on several cylinders and leaking hydrogen then caught fire. Fire and Rescue Service Personnel took more than an hour to extinguish the fire. The road was blocked for about six hours.
- Event Initiating system
- Classification of the physical effects
- Hydrogen Release and Ignition
- Nature of the consequences
- fire
- Macro-region
- Asia
- Country
- India
- Date
- Component involved
- valve (generic)
- Failure mode
- rupture & ignition
- Initiating cause
- impact, rollover, crash
- Root CAUSE analysis
The INITIATING CAUSE was the loss of control of the vehicle by the driver.
The ROOT CAUSE was a human error causing the roll-over, and probably additional errors during rescue operations.- Root causes
- Date entry in HIAD
- 01/01/2020
Facility
- Application
- Hydrogen transport and distribution
- Sub-application
- CGH2 tube trailer
- Hydrogen supply chain stage
- All components affected
hydrogen cylinders
- Process temperature range [C]
- ambient temperature (-50°C to +50°C)
- Process pressure range [MPa]
- medium to high pressure (10 to 50 MPa)
- Location type
- Unknown
- Location
- highway or similar
- Operational condition
- Description of the facility/unit/process/substances
DESCRIPTION OF THE ROUTE
A truck was returning to Nagapattinam after offloading hydrogen cylinders at a factory in Ranipet in Vellore (360 km) and the driver lost control and crashed against a pillar on a bridge over Gadilam river and overturned.
Emergency & Consequences
- Number of fatalities
- 0
- Number of injured persons
- 1
- Post-event summary
Police brought a crane from SIPCOT to right the vehicle but as the lift started, the truck rolled backwards, the crane's wire rope snapped, damaging the valves on several cylinders and leaking hydrogen then caught fire. Tamil Nadu Fire and Rescue Service Personnel took more than an hour to extinguish the fire. The road was blocked for about six hours.
- Emergency action
Police brought a crane from SIPCOT to right the vehicle but as the lift started, the truck rolled backwards, the crane's wire rope snapped, damaging the valves on several cylinders and leaking hydrogen then caught fire. Tamil Nadu Fire and Rescue Service Personnel took more than an hour to extinguish the fire. The road was blocked for about six hours.
Lesson Learnt
- Lesson Learnt
Truck drivers delivering hydrogen cylinders should take extra care about safety and drive more carefully.
In-depth data
- Release type
- gas
- Involved substances (% vol)
- H2 100%
- Release temperature [°C]
- 25
- Probable IGNITION SOURCE
References
- Sources categories
- Unknown
- Reference & weblink
Original source lost
