Event
- Event ID
- 19
- Quality
- Description
A welder was welding a stainless steel drain pipe with an arc welder, above a sulphuric acid storage tank. When he lowered the pipe, the hydrogen gas in tank ignited causing an explosion and one casualty
- Event Initiating system
- Classification of the physical effects
- Hydrogen Release and Ignition
- Nature of the consequences
- Macro-region
- North America
- Country
- Canada
- Date
- Component involved
- chemical storage tank
- Failure mode
- internal explosion
- Initiating cause
- wrong operation
- Root CAUSE analysis
The INITIATING CAUSE was the fire started by igniting hydrogen contained in a tank. The source upon which his event is based, reported as ROOT CAUSES: management-failure, wrong-position, wrong-labelled.
- Root causes
- Date entry in HIAD
- 28/02/2009
Facility
- Application
- Chemical industry
- Sub-application
- chemicals storage and transport
- Hydrogen supply chain stage
- All components affected
chemicals storage tank
- Process temperature range [C]
- ambient temperature (-50°C to +50°C)
- Process pressure range [MPa]
- ambient pressure (around 0.1 MPa)
- Location type
- Unknown
- Location
- industrial area
- Operational condition
Emergency & Consequences
- Number of fatalities
- 1
- Number of injured persons
- 0
In-depth data
- Release type
- gas
- Involved substances (% vol)
- H2 100%
- Release temperature [°C]
- 25
- Probable IGNITION SOURCE
- Explosion type
References
- Sources categories
- FACTS
- Reference & weblink
Source unvailable
