Document: NUREG-0800
Document ID: 8c2fce42-281a-4a50-9de7-513df024f27c
Document Type: srp
Title: CONTROL ROOM HABITABILITY SYSTEM
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0523/ML052340712.pdf
Revision Date: 2023-06
Chapter: 6
Section ID: 6.4
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CFR Title: 

Content:
oviding adequate protection against radiation and toxic gases such that the radiological exposures are within the limits of this criterion, and 2. GDC 4, "Environmental and Missile Design Bases," with respect to the environmental effects of the release of toxic gases and 3. GDC 5, "Sharing of Structures, Systems and Components," with respect to ensuring that the control room, shared by Units and of the (insert PLANT NAME) facility will not significantly impair the ability of the control room personnel to perform safety functions, including, in the event of an accident in one unit, an orderly shutdown and cooldown of the other unit(s)." 6.4-14 Rev. 2 - July 1981 These conclusions are based on the staff review and evaluation that the control room habitability systems meet the regulatory positions of Regulatory Guide 1.52, "Design Testing and Maintenance Critria for Engineered-Safety-Feature Atmospheric Cleanup System Air Filtration and Adsorption Units of Light-Water-Cooled Nuclear Power Plants," Regulatory Guide 1.78, "Assumptions for Evaluating the Habitability of a Nuclear Power Plant Control Room During a Postulated Hazardous Chemical Release," and Regulatory Guide 1.95, "Protection of Nuclear Power Plant Control Room Operators Against an Accidental Release." In meeting the positions of these regulatory guides, the applicant has demonstrated that the control room will adequately protect the control room operators and will remain habitable in accordance with Task Action Plan Item 11I.D.3.4 of NUREG-0737. If the design is not adequate, the fact is stated. Alternatives such as an increase in the charcoal filter flow rate may be indicated as is given in the example below: The staff has calculated the potential radiation doses to control room personnel following a LOCA. The resultant whole body doses are within the guidelines of General Design Criterion 19. The thyroid dose resulting from exposure to radioactive iodine exceeds the dose guidelines. A method of meeting