Document: NUREG-0800
Document ID: a4e67620-0ec4-4f09-b256-5267a57180dd
Document Type: srp
Title: DEMINERALIZED WATER MAKEUP SYSTEM
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0520/ML052070518.pdf
Revision Date: 2023-06
Chapter: 9
Section ID: 9.2.3
CFR Part: 
CFR Title: 

Content:
the design of the DWMS, as described in the applicant's safety analysis report (SAR), is based on design criteria or regulatory guides that apply directly to the safety-related functional performance requirements for the DWMS. The ASBEMCB assuresensures that the 31 system is capable of providing the required supply of reactor coolant purity water to all systems. Several general design criteria and regulatory guides are used to evaluate the system design for those cases when a failure or malfunction of the DWMS could adversely affect essential systems 9.2.3-5 DRAFT Rev. 3 - April 1996 or components (i.e., those necessary for safe shutdown or accident prevention or mitigation). These are as follows: 1. General Design Criterion 2 (GDC 2), "Design Bases for Protection Against Natural 32 Phenomena," as related to the safety-related portions of the system being capable of withstanding the effects of earthquakes. Acceptance is based on meeting the guidance of Regulatory Guide 1.29, Position C-1, if any portion of the system is deemed to be safety- related, and Position C-2 for nonsafety-related functions. 2. General Design Criterion 5 (GDC 5), "Sharing of Structures, Systems, and 33 Components," in regard to the effect of sharing in multiple-unit facilities. Technical Rationale34 The technical rationale for application of these acceptance criteria to reviewing the DWMS is discussed in the following paragraphs:35 1. Compliance with GDC 2 requires that nuclear power plant structures, systems, and components important to safety be designed to withstand the effects of natural phenomena such as earthquake, tornado, hurricane, flood, tsunami, and seiche without loss of capability to perform their intended safety functions. GDC 5 applies to this SRP section because the reviewer evaluates the DWMS to ensure that it will withstand the effects of natural phenomena and will be capable of providing water of reactor coolant purity for makeup to the reactor coolant and associated