Table 3-1. Safety System-Function Matrix

DOE-STD-1021-93

Table 3-1

Safety System-Function Matrix

(For Illustration Only)

Facility Name: XXX

Facility Hazard Category: I

Function (1)

Safety Systems(2)

G(3)

1. Containment/Confinement

2. Safe Shutdown or Safe-

State Maintenance

3. Maintaining Nuclear

Subcriticality or Radiation

Protection

4. Monitoring Radioactivity,

Criticality or Toxicity

5. Emergency Handling,

Hazard Recovery, etc.

6. Control or Support of

Above Safety Functions.

Notes:

The functions are listed for illustration only; obtain actual description of functions from SAR related

documents.

Attach brief description of each system with layout sketches showing location, boundary, and

interface. All safety systems, including those which do not have NPH-related safety functions,

should be listed here for completeness, ease of checking, and record-keeping purposes.

System G is an example of a case where a system can be classified as a safety system in the SAR,

but may not have any NPH-related safety significance. Such systems shall be treated as "other"

systems for the purpose of performance categorization of their components (see Subsection 3.4).

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