ML18198A460

2018/07/17 Vogtle COL Docs - ITAAC Index No. 700 Discussion

ML18198A460
Person / Time
Site:	Vogtle
Issue date:	07/17/2018
From:	NRC
To:	NRC/NRO/DLSE/LB4
References
Download: ML18198A460 (8)

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C-368 4. a) The components identified in Table 2.7.1-1 as ASME Code Section III retain their pressure boundary integrity at their design pressure. b)The piping identified in Table 2.7.1-2 as ASME Code Section III retains its pressureboundary integrity at its design pressure.5.The seismic Category I equipment identified in Table 2.7.1-1 can withstand seismic designbasis loads without loss of safety functi on.6. a) The Class 1E components identified in Table 2.7.1-1 are powered from their respective Class 1E division. b)Separation is provided between VBS Class 1E divisions, and betw een Class 1Edivisions and non-Class 1E cable.7.The VBS and SDS provide the safety-related function to isolate the pipes that penetrate theMCR pressure boundary.8.The VBS provides the following nonsafety-related functions:a)The VBS provides cooling to the MCR, CSA, RSR, and Class 1E electrical rooms.

b)The VBS provides ventilation cooling to the Class 1E battery room s.c)The VBS maintains MCR and CSA habitability when radioactivity is detected.

d)The VBS provides ventilation cooling via the ancillary equipment in Table 2.7.1-3 to t heMCR and the division B&C Class 1E I&C rooms.

9.Safety-related displays identified in Table 2.7.1-1 can be retrieved in the MCR.10. a) Controls exist in the MCR to cause the remotely operated valves identified in Table 2.7.1-1 to perform their active functions. b)The valves identified in Table 2.7.1-1 as having protection and safety monitori ng system (PMS) control perform their active safety function after receiving a signal fromthe PMS.11.After loss of motive power, the valves identified in Table 2.7.1-1 assume the indicated loss ofmotive power posit ion.12.Controls exist in the MCR to cause the components identified in Table 2.7.1-3 to perform the listed functi on.13.Displays of the parameters identified in Table 2.7.1-3 can be retrieved in the MCR.

14.The background noise level in the MCR and RSR does not exceed 65 dB(A) when t he VBSis operatin g.Controls exist in the M CR to cause the components identi fied in Table 2.7.1-3 to per form t he l i st ed f u n c t i on.

C-370 Amendment No. 41 Table 2.7.1-2 Line Name Line Number ASME Code Section III Leak Before Break Functional Capability Required Main Control Room Supply VBS-L311 Yes No No Main Control Room Exhaust VBS-L312 Yes No No Main Control Room Toilet Exhaust VBS-L313 Yes No No Main Control Room Sanitary Vent Line SDS-PL-L016 Yes No No Main Control Room Sanitary Drain Line SDS-PL-L179 Yes No No Main Control Room Sanitary Drain Line SDS-PL-L182 Yes No No Main Control Room Water Line PWS-PL-L319 Yes No No Main Control Room Water Line PWS-PL-L320 Yes No No Main Control Room Waste Water Line WWS-PL-L808 Yes No No Main Control Room Water Line WWS-PL-L851 Yes No No Table 2.7.1-3 Equipment Tag No. Display Control Function Supplemental Air Filtration Unit Fan A VBS-MA-03A Yes (Run Status) Start Supplemental Air Filtration Unit Fan B VBS-MA-03B Yes (Run Status) Start MCR/CSA Supply Air Handling Units (AHU) A Fans VBS-MA-01A VBS-MA-02A Yes (Run Status) Start MCR/CSA Supply AHU B Fans VBS-MA-01B VBS-MA-02B Yes (Run Status) Start Division "A" and "C" Class 1E Electrical Room AHU A Fans VBS-MA-05A VBS-MA-06A Yes (Run Status) Start Division "A" and "C" Class 1E Electrical Room AHU C Fans VBS-MA-05C VBS-MA-06C Yes (Run Status) Start Division "B" and "D" Class 1E Electrical Room AHU B Fans VBS-MA-05B VBS-MA-06B Yes (Run Status) Start Table 2.7.1

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