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:
OL stages) and the design implementation as depicted on electrical drawings (OL stage) of the means proposed for 137 automatically indicating at the system level a bypassed or deliberately inoperative status of a redundant portion of a safety-related system are reviewed to ascertain that the design is consistent with Regulatory Guide 1.47 and Branch Technical 8.3.1-25 DRAFT Rev. 3 - April 1996 Position ICSB 21 (PSB). This position establishes the basis to be considered in arriving at an acceptable design for the inoperable status indication system. 8. Fire Protection for Cable Systems138 In ensuring that the requirements of General Design CriterionGDC 3 have been met, CMEBSPLB will review the design of the fire stops and seals, including the 139 materials, their characteristics with regard to flammability and fire retardancy, and their fire underwriters rating in accordance with SRP Section 9.5.1. All cable and cable tray penetrations through walls and floors as well as any other types of cable ways or conduits should have fire stops installed. PSBEELB will review cable 140 derating and raceway fill to ensure compliance with accepted industry practices. 9. Reliability Program for Emergency Onsite AC Power Sources Regulatory Guide 1.155 provides guidance for setting minimum reliability goals for emergency onsite ac power sources. Review is conducted in accordance with SRP Section 8.4 (proposed) to verify that the target reliability for such sources satisfy the positions of Regulatory Guide 1.155. Regulatory Guide 1.155 also recommends 141 that the reliable operation of emergency onsite ac power sources be ensured by a reliability program designed to maintain and monitor the reliability level of each power source over time for assurance that the target reliability levels are being achieved. The reliability program is reviewed to verify its adequacy with respect to station blackout considerations. The reviewer verifies that the reliability program includes provisions