8.0 RELATIONSHIPS OF PROCESS HAZARD ANALYSES TO OTHER DOE
REQUIRED HAZARD ANALYSES
Because a PrHA can require a substantial investment, it is important to identify potential overlap
with other DOE hazard analysis requirements. This section provides a recommended approach
for satisfying the PSM Rule and the related requirements of a nuclear safety analysis report
10 CFR 830 Subpart B specifies that hazard and accident analyses be included in safety
analyses for nuclear facilities. Two nuclear SAR topics overlap with the PrHA.
Topic 5: Hazard Analysis and Categorization
Topic 11: Analysis of Accident Conditions
These topics are the subject of DOE Standard DOE-STD-1027-92 (CH-1), "Hazard
Categorization and Accident Analysis Techniques for Compliance with DOE Nuclear Safety
Analysis Reports," which provides guidance for facility managers. They are also discussed in
the DOE Standard DOE-STD-3009-94, "Preparation Guide for U.S. Department of Energy
Nonreactor Nuclear Facility Safety Analysis Reports," which describes a SAR preparation
method that is acceptable to DOE.
The requirements of DOE-STD-1027-92 (CH-1) are used as the basis for identifying the overlap
of nuclear facility safety analysis requirements with the requirements of the PSM Rule.
According to DOE-STD-1027-92 (CH-1), the level of hazard analysis required for a nuclear
facility SAR is determined by the facility's nuclear hazard classification as follows:
NUCLEAR HAZARD CATEGORY 3 FACILITIES.
Minimal hazard and accident analyses are
required. The PrHA should provide information to the safety analysis on release mechanisms,
engineering analysis, and consequence analysis.
2 FACILITIES. This category requires use of one of several
NUCLEAR HAZARD CATEGORY
analytical methods for developing qualitative accident scenarios. The choices are generally6
compatible with the requirements of the PSM Rule. If the PSM Rule requirements for PrHAs
Event Tree Analysis (ETA) is suggested by the DOE-STD-1027-92 (CH-1), but not included in the PSM
Rule. However, the PSM Rule does allow the use of "an appropriate equivalent methodology." Hence, if
ETA is to be used as the PrHA, the PrHA report must justify that the ETA method is appropriate and
equivalent to the methods listed in the rule.
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