Document: NRC Regulatory Guide
Document ID: f92b5e1e-0bb1-4850-acb7-d4534cc77577
Document Type: regulatory_guide
Title: Wide-Range Spent Fuel Pool Level Instrumentation + HISTORY - HISTORY 11/2015 – DG-1317 , Proposed Revision 0
Source: NRC Regulatory Guide Division 1
Source URL: https://www.nrc.gov/docs/ML1424/ML14245A454.pdf
Revision Date: 2023-06
Chapter: 
Section ID: RG-1.227
CFR Part: 
CFR Title: 

Content:
ons identified in this section, the methods described in NEI 12-02, Revision 1, dated August 2012. The NRC staff has determined that the methods described in the NEI document constitute procedures and processes generally acceptable to the NRC staff for demonstrating compliance with the regulatory requirements for reliable wide-range SFP instrumentation in 10 CFR 50.155. Licensees may use methods other than those provided in NEI 12-02, Revision 1, to meet the regulatory requirements for reliable wide-range SFP instrumentation. The NRC staff will review such methods and determine their acceptability on a case-by-case basis. Except in those cases in which a licensee proposes an acceptable alternative method for complying with these regulations, the NRC staff will use the methods described in this RG to evaluate licensee compliance with the applicable regulations. 1. Introduction Section 1 of NEI 12-02, Rev. 1 provides a brief history of the events at Fukushima Dai-ichi nuclear power plant and the issuing of NRC Order EA-12-051 for reliable, wide-range SFP instrumentation. Staff Position: The staff has no exceptions or clarifications for Section 1 of NEI 12-02, Rev. 1. 2. Levels of Required Monitoring Section 2 of NEI 12-02, Rev. 1 describes the 3 critical levels in the SFP that must be monitored to demonstrate compliance with the regulations. Staff Position: The staff has no exceptions or clarifications for Section 2 of NEI 12-02, Rev. 1. 3. Instrumentation Design Features Section 3 of NEI 12-02, Rev. 1 describes the types of instruments that can be used to monitor the SFP water level, their arrangement, mounting, qualification, accuracy, and testing. Staff Position: The staff has the following exceptions and clarifications for Section 3.4, “Qualification” of NEI 12-02, Rev. 1: 3.4 Qualification - Guidance The second bullet under subheading “Guidance” states that “…instrument channel reliability shall be demonstrated…” for the “…effects of shock and