Table 3.

The assessment of consequence levels in risk events.

Consequences levels	The reference value of the probability interval for the occurrence of the risk event	Definition
Very high	[0.8, 1]	The consequences are very serious
High	[0.6, 0.8)	The consequences are serious
Medium	[0.4, 0.6)	It has a certain impact, and it is necessary to take preventive measures for the possible consequences
Low	[0.1, 0.4)	It is insignificant, but unavoidable
Negligible	[0, 0.1)	It doesn't matter, no need to think about it