Fire on a bus while refuelling

Event

Event ID: 1087
Quality: 2
Description: The fire developed on a hydrogen bus during filling, and was detected due to the development of smoke and a smell of burned materials.
The power cable of the compressor had overheated. Two are the possible causes: (1) the cable had been wrongly installed or fixed, or (2) the electrical system had caused too high current in the cable.
The corrective actions have been:
(a) To ship the affected component to the manufacturing company for inspection
(b) To replacement of the affected component with a new one.
(c) To perform an inspection of the system on all the other buses in function.
Event Initiating system: Hydrogen System Initiating Event
Classification of the physical effects: No Hydrogen Release
Nature of the consequences: Near Miss
Macro-region: Europe
Country: France
Date: 10/05/2022
Main component involved?: Fcev (Bus)
How was it involved?: Fire
Initiating cause: Conventional Component Failure (Electricity, Power)
Root causes: System Design Error
Root CAUSE analysis: The INITIATING cause was the overheating of an electrical cable during refuelling.
Two are the possible causes or this:
(1) the cable had been wrongly installed or fixed, or
(2) the electrical system had caused too high current in the cable.

Application: Road Vehicles
Sub-application: Hydrogen bus
Hydrogen supply chain stage: Hydrogen Transfer (No additional details provided)
All components affected: power cable
Location type: Confined
Operational condition: Normal
Pre-event occurrences: It happened during refuelling

Number of injured persons: 0
Number of fatalities: 0
Post-event summary: Nobody was in the proximity of the bus.
20 days of operation were lost.

Corrective Measures: (a) To ship the affected component to the headquarter for inspection
(b) To replacement of the affected component with a new one.
(c) To perform an inspection of the system on all the other buses in function.