Distribution Network Risk Assessment Using Multicriteria Fuzzy Influence Diagram

Table 8

Safety and environment criteria grades.

Grade	Safety risk	Environmental risk
1	No harmful consequences	No harmful consequences, Failure does not allow any release of chemicals into the environment
2	Minor: failure results in minor system damage but does not cause injury to personnel	Personnel exposure to harmful chemicals or radiation or fire
3	Critical: failure results in minor injury to personnel	A release of chemical to the environment