ML18033A242

Proposed Tech Specs,Changing Valve Timing for Two Containment Isolation Valves Associated W/Rhr Sys

ML18033A242
Person / Time
Site:	Browns Ferry
Issue date:	06/13/1988
From:	TENNESSEE VALLEY AUTHORITY
To:
Shared Package
ML18033A241	List: ML18033A240 ML18033A242
References
TAC-00074, TAC-00075, TAC-00076, TAC-74, TAC-75, TAC-76, NUDOCS 8806170002
Download: ML18033A242 (4)

Text

TABLE 3.7.A PRIHARY CONTAINHENT ISOLATION VALVES

,"9 QR Number oF Power Maximum Action on t3R Initiating ZO 0'N 1 F Operated Valves

()H)JHH~ ~i~i~

Operating Normal Loziiian QO Hain steamline isolation valves QO (FCV-1-14, -26, -37, 8 -51; 1-15, AO -27,- 38, 8 -52) 3 < T < 5 0 GC

~N OOO Hain steamline drain isolation Q)R valves (FCV-1-55 8, 1-56) 15 GC OO 00 Reactor Water sample line CJOY nM00 .

isolation valves SC C3 Vl RHRS shutdown cooling supply isolation valves (FCV-74-48 8 -47) 40 SC RHRS LPCI to reactor (FCV-74-53, -67) 40 SC 2 Reactor vessel head spray isolation valves (FCV-74-77, -78) 30 SC RHRS flush and drain vent to suppression chamber (FCV-74-102, -103, -119, 8, -120) 20 SC

'k Suppression Chamber Orain (FCV 75-57, -5)) 15 0 A GC Drywell equipment drain discharge isolation valves (FCV-77-15A. 8 -15B) 15 Orywell floor drain discharge isolation valves (FCV-77-2A 8, -2B) 2 15 0 GC "These valves isolate only on reactor vessel low low water level (470") and main steam line high radiation of Group 1 isolations.

""These valves are normally open when the pressure suppression head tank is aligned to serve the RHR and CS discharge piping and closed when the condensate head tank is used to serve the RHR and CS discharge piping.

(See SpeciFication 3.5.H)

BFH-Unit 1

TABLE 3.7.A PRIHARY CONTAINHENT ISOLATION VALVES Number of Power Haximum Action on Operated Valves Operating Normal Initiating Znhmesl Quthgmf Qp~~ Eas.iQsm Siaaal 1 Hain steamline isolation valves (FCV-1-14, 26, 37, & 51; 1-15, 27, 38, & 52) 3 < T < 5 0 GC Hain steamline drain isolation valves (FCV-1-55 8 1-56) 15 GC lw Reactor Water sample line isolation valves SC RHRS shutdown cooling supply isolation valves (FCV-74-48 & 47) . -- 1 40 SC RHRS - LPCI to reactor (FCV-74-53 & 67) 2 40 SC RHRS flush and drain vent to suppression .

chamber (FCV-74-102, 103, 119, & 120) 20 SC Suppression Chamber Orain (FCV-75-57, 58) 15 0NR

'rywell equipment drain discharge isolation valves (FCV-77-15A 8 15B) 15 Drywell floor drain discharge isolation valves (FCV-77-2A & 2B) 2 15 GC "These valves isolate only on'reactor vessel low low water level (470") and main steam line high radiation of Group 1 isolations.

""These valves are normally open when the pressure suppression head tank is aligned to serve the RHR and CS, discharge piping and closed when the condensate head tank is used to serve the RHR and CS discharge piping.

(See Specification 3.5.H)

BFN-Unit 2

TABLE 3.7.A PRIHARY CONTAINHENT ISOLATION VALVES Number of Power Haximum Action on Operated Valves Operating Normal Initiating Inhume& )ethane Xim~~ P~Qsu Shmul Hain steamline isolation valves (FCV-1-14, -26, -37, & -51; 1-15

-27,- 38> & -52) 3 < T < 5 0 GC Hain steamline drain isolation valves (FCV-1-55 & 1-56) 15 GC Reactor Water sample line isolation valves SC RHRS shutdown cooling supply isolation valves (FCV-74-48 & -47) 40 SC RHRS - LPCI to reactor (FCV-74-53, -67) 40 SC RHRS flush and drain vent to suppression chamber (FCV-74-102, -103, -119, & -120) 20 SC Suppression Chamber Drain (FCV 75-57, -58) 15 Orywell equipment drain discharge isolation valves (FCV-77-15A, & -158) 15 GC Orywell floor drain discharge isolation valves (FCV-77-2A & -28) 2 15 0 GC "These valves isolate only on reactor vessel low low water level (470") and main steam line high radiation of Group 1 isolations.

""These valves are normally open when the pressure suppression head tank is aligned to serve the RHR and CS discharge piping and closed when the condensate head tank is used to serve the RHR and CS discharge piping.

{See Specification 3.5.H)

BFN-Unit 3

7I