DECOMMISSIONING SAFETY REFERENCE LEVELS REPORT ...

WENRA harmonized decommissioning reference levels report - 43 -
- (from surrounding industrial and military installations or transport infrastructure)
- Aircraft crash
- Missiles due to structural/mechanical failure in surrounding installations
- Flooding (failure of a dam, blockage of a river)
- Power supply and potential loss of power
- Civil strife (terrorism, sabotage, infrastructure failure, strikes and blockages)
Internal postulated events
- Loss of energy and fluids : Eletrical power supplies, air and pressurized air, vacuum, super heated water
and steam, coolant, chemical reagents, and ventilation;
- Use of electricity and chemicals
- Mechanical failure including drop loads, rupture (pressure retaining vessels), leaks (corrosion), plugging
- Instrumentation and control, human failures
- Internal fires and explosions (gas generation, process hazards)
- Flooding, vessel overflows