ML19045A491

(EA-13-109) HCVS FIP Follow-Up

ML19045A491
Person / Time
Site:	Hatch
Issue date:	01/28/2019
From:	Enfinger T Southern Nuclear Operating Co
To:	Rajender Auluck Division of Licensing Projects
Lee B, 301-415-2916, NRR/DLP
References
EA-13-109
Download: ML19045A491 (2)

Text

From: Auluck, Rajender To: Lee, Brian; Heida, Bruce; Wyman, Stephen; Armstrong, Garry; Roche, Kevin; Scales, Kerby; Parillo, John

Subject:

FW: Hatch HCVS FIP Follow-Up Date: Monday, January 28, 2019 3:49:18 PM From: Enfinger, Timothy Lee [1]

Sent: Monday, January 28, 2019 2:21 PM To: Auluck, Rajender <Rajender.Auluck@nrc.gov>

Subject:

[External_Sender] Hatch HCVS FIP Follow-Up Hello Raj, We have some supplemental information related to the Plant Hatch HCVS FIP for the staffs consideration. Can you provide us a ballpark timeframe for when review may be complete? Here is the supplemental information:

Action 1: Clarification on Manual Actions No follow-up after discussions regarding remote manual, with battery back-up, operation.

Action 2: Additional Information for Table 1 In regard to FIP Table 1, List of HCVS Component, Control and Instrument Qualifications additional information (in red text) for the HCVS effluent radiation monitor is provided here. Note that the local event temperature, local event humidity, and local radiation level are identical to those for the HCVS effluent strap-on thermocouple (applicable information repeated in table excerpt for convenience). The qualification temperature, humidity, and radiation are from SNC Document S-77683 (now loaded in the ePortal). The power supply is shown in the FIP, Attachment 3.

Local Local Local Event Qualification Qualification Qualification Component Name Equipment ID Range Location Event Radiation Qualification Power Supply Humidity Temp Humidity Radiation Temp Level Wetwell Vent Instruments and Components HCVS effluent strap- 1T48-N150 0-400°F Torus Bay 218°F 50-100% 1.39+E7 RAD IEEE 344-1975 0-500°F No electronics, not 3.00E+08 RAD None on thermocouple susceptible required HCVS effluent 1T48-N152 1E-1 to Torus Bay 218°F 50-100% 1.39+E7 RAD IEEE 344-1975 0-350°F 0-95% 2.00E+08 RAD 1R25S067 radiation monitor 1E+5 RAD/HR Action 3: Location of HCVS Batteries and Chargers This diagram indicates the location of the HCVS batteries and chargers.

Action 4: Confirmation Latest Revision of Specific Calculations/Evaluations are Provided on ePortal SMNH-13-013, Sizing of Accumulator Tanks for Reliable Hardened Containment Vent System for Unit 2, is Version 1.0. Confirmed Version 1.0 is on ePortal.

SMNH-13-019, Sizing of Nitrogen Bottles for Reliable Hardened Containment Vent System, is Version 1.0. Confirmed Version 1.0 is on ePortal.

A-47400, FLEX Portable System Pump Sizing Evaluations for Hatch Units 1 and 2 Core Cooling Phase 2, is Version 2.0. Confirmed Version 2.0 is on ePortal.

Respectfully, Tim Enfinger Senior Licensing Engineer Southern Nuclear 3535 Colonnade Parkway Bin N-274-EC Birmingham, AL 35243 Tel 205.992.7924 Email tlenfing@southernco.com southernnuclear.com