Document: NUREG-0800
Document ID: 8c755ba5-45e1-492e-b36c-5fa2fa5b3e29
Document Type: srp
Title: Appendix 7-A
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0525/ML052500545.pdf
Revision Date: 2023-06
Chapter: 7
Section ID: 7
CFR Part: 
CFR Title: 

Content:
EE Std 498 (Withdrawn), "IEEE Standard Supplementary Requirements for the Calibration and Control of Measurement and Test Equipment Used in the Construction and Maintenance of Nuclear Power Generating Stations," and ANSI/NCSL Std Z540, "General Requirements for Calibration Laboratories and Measuring and Test Equipment," provide guidance for the calibration and control of measuring and test equipment used in the maintenance of instrument setpoints. Generic letter 91-04, "Guidance on Preparation of a Licensee Amendment Request for Changes in Surveillance Intervals to Accommodate a 24-Month Fuel Cycle," provides guidance on issues that should be addressed by the setpoint analysis when calibration intervals are extended from 18 months to 24 months. The Staff has reviewed setpoint methodologies submitted as either topical reports or as support for amendments to technical specifications, and found that they met the requirements of the above regulations. 3. Definitions Section 3 and Figure 1 of ISA-S67.04, Part I, provide acceptable definitions (except as noted by Draft Reg. Guide DG-1045) of setpoint terminology and relationships between trip setpoint, allowable value, analytical limit, limiting safety system setting (LSSS) and safety limit. 4. Purpose The purpose of this BTP is to provide guidance for NRC staff to verify conformance with the previously cited regulatory bases and standards for instrument setpoints. This BTP has three objectives: • To verify that setpoint calculation methods are adequate to ensure that protective actions are initiated before the associated plant process parameters exceed their analytical limits. • To verify that setpoint calculation methods are adequate to ensure that control and monitoring setpoints are consistent with their requirements. • To confirm that calibration intervals and methods established are consistent with safety analysis assumptions. B. Branch Technical Position 1. Introduction Instrumentation and control (I&C)