NUREG-1537, Part 2 - NRC

8 ELECTRICAL POWER SYSTEMS
In this chapter of the SAR, the applicant discusses and describes the electrical
power systems at a non-power reactor facility designed to support reactor
operations. All non-power reactors require normal electrical service. Some nonpower
reactors may also require emergency electrical service to perform certain
functions related to reactor safety to ensure that, given a loss of normal electric
service, sufficient power will be available for mitigating the events discussed in
SAR Chapter 13, 'Accident Analysis." The design bases for these functions are
provided on a case-by-case basis in other chapters of the SAR, such as Chapter 4,
"Reactor Description"; Chapter 5, "Reactor Coolant Systems"; Chapter 7,
Instrumentation and Control Systems"; Chapter 9, "Auxiliary Systems";
Chapter 10, 'Experimental Facilities and Utilization"; Chapter 11, "Radiation
Protection Program and Waste Management"; and Chapter 13. Design and
functional information in Chapter 8 should be provided under the two categories:
normal and emergency electrical power systems.
8.1 Normal Electrical Power Systems
Areas of Review
Normal electrical power systems at non-power reactors are designed for safe
operation and shutdown of the reactor, and to provide for reactor use.' The'areas
of review for normal electrical power systems include these functions. In geheral
non-power reactors are designed for fail-safe passive shutdown by a reactor scram
in the event of the loss of offsite electrical services. Therefore, specially designed
active systems and components are not generally required. The reactor design
should use high-quality, commercially available components and wiring in
accordance with applicable codes in the normal electrical systems.
Specific areas for review for this section are discussed in Section 8.1 of the
standard format and content guide.
Acceptance Criteria
- The acceptance criteria for the information on normal electrical power systems at
non-power reactor facilities include the following:
* The design and functional characteristics should be comnmensurate with the
design bases, which are derived from other chapters of the SARP
* The facility should have a dedicated substation or a shared system designed
to provide reasonable assurance that other uses could not prevent safe
reactor shutdown.
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