Document: NUREG-0800
Document ID: fa9a9d5c-42ee-4507-b736-571f01da69cc
Document Type: srp
Title: CONTROL SYSTEMS
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0706/ML070670042.pdf
Revision Date: 2023-06
Chapter: 7
Section ID: 7.7
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Content:
REVIEW RESPONSIBILITIES Primary - Organization responsible for the review of instrumentation and controls Secondary - None I. AREAS OF REVIEW The objectives of the review are to confirm that the control systems conform to the acceptance criteria and guidelines, that the controlled variables can be maintained within prescribed operating ranges, and that effects of operation or failure of these systems are bounded by the accident analyses in Chapter 15 of the safety analysis report (SAR). The specific areas of review are as follows: 1. This Standard Review Plan (SRP) section describes the review process and acceptance criteria for those control systems used for normal operation that are not relied upon to perform safety functions following anticipated operational occurrences or accidents. The control systems covered by this SRP section include those control systems that control plant processes having a significant impact on plant safety. These control systems are those systems that can, through normal operation, system failure or inadvertent operation, affect the performance of critical safety functions. Table 7.7-1 of this SRP section lists examples of control system functions that may be included in the scope of SRP Section 7.7 for boiling water and pressurized water reactors. The actual 7.7-2 Revision 5 - March 2007 list of system functions and systems included in the scope of SRP Section 7.7 will be plant-specific. A specific plant may not necessarily incorporate all of the functions listed in Table 7.7-1, may require functions beyond those listed in Table 7.7-1, or may group functions into systems differently than indicated in Table 7.7-1. The organization responsible for the review of instrumentation and controls (I&C) also has secondary review responsibility for I&C portions of support systems and plant process systems. The acceptance criteria and review procedures of SRP Section 7.7 are also applicable to these other I&C systems. Table 7.7-2 of this SRP