Document: NUREG-0800
Document ID: bc7e4c14-0eaa-4591-a506-23d7893f8a00
Document Type: srp
Title: as establishing acceptable guidance for meeting the requirements of this criterion.
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0520/ML052070498.pdf
Revision Date: 2023-06
Chapter: 8
Section ID: 8.3.1
CFR Part: 
CFR Title: 

Content:
, as endorsed by Regulatory Guide 1.153, provides criteria used to evaluate all aspects of the instrumentation, control, and electrical portions of auxiliary supporting systems and features, including basic requirements that call for auxiliary supporting systems and features to satisfy the same criteria as the supported safety systems. 117 The PSBEELB reviews the instrumentation, control, and electrical aspects of the 118 vital supportingauxiliary supporting systems and features to ensure that their 119 design conforms to the same criteria as those for the systems that they support. DRAFT Rev. 3 - April 1996 8.3.1-24 Hence, the review procedure to be followed for ascertaining the adequacy of these vital supporting systems and features is the same as that discussed herein for the 120 onsite systems. In essence, the reviewer first becomes familiar with the purpose and operation of each vital supportingauxiliary supporting system and feature , 121 including its components arrangement as depicted on functional P&IDs. Subsequently, the design criteria, analyses, and description and implementation of the instrumentation, control, and electrical equipment, as depicted on electrical drawings, are reviewed to verify that the design is consistent with satisfying the acceptance criteria for Class 1E systems. In addition, it is verified that the vital supportingauxiliary supporting system redundant instrumentation, control devices, 122 and loads are examined to verify that they are powered from the same redundant distribution system as the system that they support. The PSBEELB will also 123 verify that the vital supportingauxiliary supporting systems which are associated 124 with the emergency diesel engine such as the fuel oil storage and transfer system, cooling water system, starting air system, and lubrication system are in accordance with the acceptance criteria. The ASBSPLB reviews the other aspects of the vital supportingauxiliary 125 supporting systems to verify that