Hazard Evaluation cont'd - doe-std-3009-94_cn3

DOE-STD -3009-94

analyses, etc., is understood.

Table 3-2, although not filled out, provides an example of another type of

evaluation table. Whereas Table 3-1 is based more on a What- if or PHA-type

approach, Table 3-2 is based on a failure modes and effects analysis (FMEA)

approach. The basic outputs, however, remain unchanged. The second

example is provided to indicate there is no one correct approach or

presentation. The only constant is that effort needs to be expended only to the

level necessary to basically characterize the accident spectrum.

Hazard evaluation presents potential accidents in terms o f hazards, energy

sources, causes, preventive and mitigative features, consequence estimates, and

frequency estimates. Where a large number of scenarios are involved, present

simple summaries in the text of this chapter with detailed tables generated in

the performance of the hazard evaluation included as an appendix to the DSA.

Beyond the basic results, the individual subheadings (Sections 3.3.2.3.1

through 3.3.2.3.5) of Section 3.3.2.3, "Hazard Evaluation," present organized

summaries of specific topics of concern.

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