Document: NUREG-0800
Document ID: 924aeba2-7603-48d5-9467-ab37f7d036f0
Document Type: srp
Title: Revision 6 - August 2016
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML1601/ML16019A169.pdf
Revision Date: 2023-06
Chapter: 7
Section ID: 7
CFR Part: 
CFR Title: 

Content:
the reading of more than one instrument, the intent of this recommendation is met if the same variable and same display are used for accident monitoring even though the sensor(s) providing the signal are different. Alternate Instrumentation The use of alternate instrumentation to monitor variables different from those identified in RG 1.97, Revisions 2 and 3, is acceptable, provided that all three of the following criteria are met: (1) The alternate instrumentation fulfills the purpose of the variables identified in RG 1.97. (2) The alternate instrumentation conforms to the design and qualification criteria for the variables identified in RG 1.97. (3) No credit is taken by the applicant or licensee in post-accident procedures, emergency operating procedures, or functional recovery guidelines for indication of the variables identified in RG 1.97 for which the alternative instrumentation is proposed. BTP 7-10-6 Revision 6 - August 2016 Revision 4 of RG 1.97 does not identify specific variables to be displayed; therefore, this topic does not apply to Revision 4. BTP 7-10-7 Revision 6 - August 2016 Guidance for Boiling Water Reactor (BWR) and Pressurized Water Reactor (PWR) Variables Table 1, BWR Variables, and Table 2, PWR Variables, of RG 1.97, Revision 2, and Table 2, BWR Variables, and Table 3, PWR Variables of RG 1.97, Revision 3, identify guidelines for the range, design and qualification category, and purpose for specific BWR and PWR variables. For selected BWR and PWR variables identified in the tables, acceptable deviations or clarifications are identified in Tables 1 and 2, respectively, of this BTP. Tables 1 and 2 of this BTP list RG 1.97 variables and types of deviations from RG 1.97 guidelines (e.g., deviations with respect to category, redundancy, range, direct measurement), and provide a summary of the acceptance guidelines or clarification associated with the deviations. Revision 4 of RG 1.97 does not identify specific variables; therefore Tables 1 and