ML17264B039

Proposed Tech Specs Revising Allowable Value & Trip Setpoint for High Steam Flow Input Into LCO Table 3.3.2-1,Function 4d (Main Steam Isolation) to Address Issues Identified in Rev Revised Setpoint Analysis Study

ML17264B039
Person / Time
Site:	Ginna
Issue date:	09/29/1997
From:	ROCHESTER GAS & ELECTRIC CORP.
To:
Shared Package
ML17264B034	List: ML17264B033 ML17264B038 ML17264B039
References
NUDOCS 9710020027
Download: ML17264B039 (8)

Text

Attachment II Marked Up Copy of R.E.Ginna Nuclear Power Plant Technical Specifications Included Pages: 3.3-26 B 3.3-82*, B 3.3-84" These bases pages are being provided for information only to show the changes RG8cE intends to make following NRC approval of the I.AR.The bases are under RGB control for all changes in accordance with Specification 5.5.13.9710020027 970929 PDR ADQCK 05000244 P PDR ESFAS Instrumentation 3.3.2 Table 3.3'-1 (page 2 of 3)Engineered safety Feature Actuation system Instrwlentation FUNCTION APPLICABLE MODES OR OTHER SPECIFIED CONDITIONS REQUIRED SURVEILLANCE CHANNELS CONDITIONS REQUIREMENTS ALLOMABLE VALUE TRIP SETPOINT 4.Steam Line Isolation a.Manual Initiation b.Automatic Actuation Logic and Actuation Relays c.Contaiment Pressure-High High (b)3(b)1 2(b)3(b)1 2(b)3(b)1 per loop 2 trains D,G E,G-F,G SR 3.3.2.4 SR 3.3.2'SR 3.3.2.1 s 20 psig RR 3.3.2.2 SR 3.3.2.5 NA NA (C.RR-I d.High Steam Flow 1 2(b)3(b)2 per~~steam line F,G SR 3.3.2.1 SR 3.3.2.2 SR 3.3.2.5 0.(I (=.(s~ibm/hr 9 i%i-ps+IOUS Pr s 0.4E6 ibm/hr oI~vpsl g I OOS Coincident with Safety Injection Refer to Function 1 (Safety Injection) for all initiation functions and requirements.

Coincident with T,~-Low 122 3 2 per loop F,G SR 3.3.2.1 a 543 F SR 3.3.2.2 SR 3.3.2.5 a 545 F e.High-High Steam Flow 1,2,3 2 per steam line F,G SR 3.3.2.1 SR 3.3.2.2 SR 3.3.2.5<3.7E6 s 3.6E6 ibm/hr 9 ibm/hr a 755 pslg 755 pslg Coincident with Safety Injection Refer to Function 1 (Safety Injection) for all initiation functions and requirements.(b)Except when both MSIVs are closed and de-activated.(continued)

R.E.Ginna Nuclear Power Plant 3.3-26 Amendment No.61 It ESFAS Instrumentation B 3.3.2 BASES APPLICABLE SAFETY ANALYSES, LCO, and APPLICABILITY c.Steam Line Isolation-Containment Pressure-Hi h Hi h (continued)

Containment Pressure-High High must be OPERABLE in MODES I, 2, and 3, because there is sufficient energy in the primary and secondary side to pressurize the containment following a pipe break.This would cause a significant increase in the containment pressure, thus allowing detection and closure of the MSIVs.The steam line isolation Function must be OPERABLE in MODES 2 and 3 unless both MSIVs are closed and de-activated.

In MODES 4, 5, and 6 the steam line isolation Function is not required to be OPERABLE because there is not enough energy in the primary and secondary sides to pressurize the containment to the Containment Pressure-High High setpoint.d.Steam Line Isolation-Hi h Steam Flow Coincident With Safet In'ection and Coincident With T-Low This Function provides closure of the MSIVs~w<'+'P

'uring an SLB or inadvertent openjyg of@g4G atmospheric relief or safety valv8to maintain at least one unfaulted SG as a heat sink for the reactor, and to limit the mass and energy release to containment.(continued)

R.E.Ginna Nuclear Power Plant B 3.3-82 Revision 6 ESFAS Instrumentation B 3.3.2 BASES APPLICABLE SAFETY ANALYSES, LCO, and APPLICABILITY d.Steam Line Isolation-Hi h Steam Flow Coincident With Safet In'ection and Coincident With T-Low (continued)

This Function must be OPERABLE in HODES I, 2, and 3 when a secondary side break or stuck open valve could result in rapid depressurization of the steam lines.The Steam Line Isolation Function is required to be OPERABLE in HODES 2 and 3 unless both HSIVs are closed and de-activated.

This Function is not required to be OPERABLE in HODES 4, 5, and 6 because there is insufficient energy in the secondary side of the plant to have an accident.e.Steam Line Isolation-Hi h Hi h Steam Flow Coincident With Safet In'ection tion provides closure of the HSI dur~in a team line brea (or dna ent openin+of an SG~aeÃp er>c re i s valve to ann a east one unfaulted SG as a eat sink for the reactor, and to limit the mass and energy release to containment.

FlOOWnlaid Value-~~" c+p te tin<-'ba+5 o~~~po~i tnv44 (oQQ c qp~or Two steam line flow channels per steam line are required to be OPERABLE for this Function.These are combined in a one-out-of-two logic t,o indicate high-high steam flow in one steam line.FT-464 and FT-465 are the two channels required for steam line A.FT-474 and FT-475 are the two channels required for steam line B.Each steam line is considered a separate function for the purpose of this LCO.The steam flow transmitters provide control inputs, but the control function cannot initiate events that the Function acts to mitigate.Therefore, additional channels are not required to address control protection interaction issues.S+ta~o~a~o~~co~i iooapQ,~~4~w,~g Alai+lAL o~OdlJ)A'L gi wi c, HAII Q'ieo~~'ELJ clod~og a~+io~eo~cw~~~h (continued)

R.E.Ginna Nuclear Power Plant B 3.3-84 Revision 6 Attachment III Proposed Technical Specifications Included Pages: 3.3-26 e ESFAS Instrumentation 3.3.2 Table 3.3.2-1 (page 2 of 3)Engineered Safety Feature Actuation System Instrwentation FUNCTION APPLICABLE MODES OR OTHER SPECIFIED COHDIT IOHS REQUIRED'URVEILLANCE ALLOHABLE CHANNELS CONDITIONS REQUIREMENTS VALUE TRIP SETPOINT 4.Steam Line Isolation a.Manual Initiation 1 2(b)3(b)1 per loop D,G SR 3.3.2.4 HA HA b.Automatic Actuation Logic and Actuation Relays 1,2()3()2 trains E,G SR 3.3.2.7 HA HA c.Containment Pressure-High High d.High Steam Flow 1 2(b)3(b)1 2(b)3(b)2 p r~~steam line F,G F,G SR 3.3.2.1 SR 3.3.2.2 SR 3.3.2.5 SR 3.3.2.1"SR 3.3.2.2 SR 3.3.2.5 s 20 psig s 0.66E6 ibm/hr g 1005 psi s 18 psig s 0.4E6 ibm/hr g 1005 psig Coincident with Safety Injection Refer to Function 1 (Safety Injection) for all initiation functions and requirements.

Coincident with T~-Low 12 3 2 per loop F,G SR 3.3.2.1 SR 3.3.2.2 SR 3.3.2.5 a 543 F a 545 F e.High-High Steam Flow 1,2(),3()2 per F,G SR 3.3.2.1 steam SR 3.3.2.2 line SR 3.3.2.5 s 3.7E6 ibm/hr g 755 psig s 3.6E6 Ibm/hr g 755 psig Coincident with Safety Injection Refer to Function 1 (Safety Injection) for all initiation functions and requirements.(b)Except when both MSIVs are closed and de-activated.(cont>nu)R.E.Ginna Nuclear Power Plant 3.3-26 Amendment No.61 I~0 P 4~4'A, Q)1 U