ML20078Q235

Proposed Tech Specs 3.3.3.7, Chemical Detection Sys & 3.8.4.1, Electrical Equipment Protective Devices- Containment Penetration Conductor Overcurrent Protective Devices & Associated Bases

ML20078Q235
Person / Time
Site:	South Texas
Issue date:	02/15/1995
From:	HOUSTON LIGHTING & POWER CO.
To:
Shared Package
ML20078Q232	List: ML20078Q235 ST-HL-AE-5000, Application for Amends to Licenses NPF-76 & NPF-80, Relocating TS 3.3.3.7 & 3.8.4.1 to Technical Requirements Manual
References
NUDOCS 9502210162
Download: ML20078Q235 (15)

Text

_

ATTACllMENT 3 PROPOSED RELOCATION OF SELECTED TECllNICAL SPECIFICArlONS AND ASSOCIATED BASES TO Tile TECilNICAL REQtJIREMENTS MANIJAL (TRM) 9502210162 950215 PDR ADOCK 05000498 PDR P

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SOUTll TliXAS - UNITS 1 & 2 3/4 3-75 Unit 1 - Amendment No. 49 Unit 2 - Amendment No. 38 i

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ST-ill-AE-5000 Page 2 of 8 INSTRUMl!NTKFION 3.3.3.7 (This specification number is not used.)

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SOUTil TliXAS - UNITS 1 & 2 3/4 3-75

ST-ill-AE-5000 Page 3 of 8 EI.liCTRICAl POWi!R SYSTEMS N4A4-FAFXITRICAirEOUIPMENT-PHirlT4rFIVFel)F#KM CONTAINMENT-PENETH ATION-CONul'4ZFOH4WEHOUR HENT--PH4 FITizf4 VE DFNKM MMIT4NG-CONDIT4GN-FOR-GPERAT4GN

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ST-ilL-AE-5000 Page 4 of 8 El.ECTRICAL POWER SYSTEMS SU1WF4LLANCF RlW)MIREMENTS (Gmtinued)

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ST-IIL-AE-5000 Page 5 of 8 El.ECTRICAL POWIiR SYSTEMS 3.3.8.4 (This specification number is not used.) SOUTil TliXAS - UNITS 1 & 2 3/4 8-17

ST-llL-AE-5000 Page 6 of 8 lit.l!CTRICAL POWER SYSTliMS 3.3.8.4 (This specification number is not used.) l l SolITil Tl!XAS - UNITS 1 & 2 3/4 8-18

l e ST-HL-AE-5000 Page 7 of 8 I l REMOTE SilHTDOWN SYSTEM (Continued) The OPERAlllLITY of the Remote Shutdown System ensures that a fire will not preclude achieving safe shutdown. The Remote Shutdown System instrumentation, control, and power circuits and transfer switches necessary to eliminate effects of the fire and allow operation of instrumentation, control and power circuits required to achieve and maintain a safe shutdown condition are independent of areas where a fire could damage systems normally used to shut down the reactor. This capability is consistent with General Design Criterion 3 and Appendix R to 10 CFR Part 50. 3/4.3.3.6 ACCIDENT MONITORING INSTRUMENTArlON The OPERAlllLITY of the accident monitoring instrumentation ensures that sufficient intbrmation is available on selected plant parameters to monitor and assess these variables following an accident. This capability is consistent with the recommendations of Regulatory Guide 1.97, Revision 2, " Instrumentation for Light-Water-Cooled Nuclear Power Plants to Assess Plant Conditions During and Following an Accident," December 1980 and NUREG-0737, " Clarification of TMl Action Plan Requirements," November 1980. The instrumentation listed in Table 3.3-10 corresponds to the Category 1 instrumentation fbr which selection, design, qualification and display criteria are described in Regulatory Guide 1.97, Revision 2. 3/4.3.3.7 (Not Used)G141MCAL DFTECTION SYSTEMS he4P14rMHL!TY of the Chemieel-Deteetiot: Sy sten., c:t.re:; ilmsuffic:ent capaMlity is-twaihd4tHo-premiptly de:ee: nd initiate p:oteetive acti,...a the event cf..a aceitlental-ehemieel telea:,e. Thi; capaMiity i, requ: red to pro:ce: c( ntrol re, m ;,er:, anel-tmd.. e; a.s:er.:. ith.the teewmnendationw4-Regulatory Guide 178, "Awm>pth:: 'br F;ahmting4he !!abitaMiited a Nuclear Pc ac: Plaat-Ct n:rol Ri s :a4bing Postuktted44antrtle..; Chemical Relea:,c," hme 4 W 4-14++ision-in4he-Aetica 9:atement-wineluded th l eentlition*-whereby-the-inopereMiity-of-the Chem: cal Detection l SyMem-preclude:; the.:e of amkeup m required fer Action l Statemeta-a-fm444DFc f.nd 6 of Technka! Specificatic:. ' 7 7 l l m4aNe ' ' ', !1em44-AGT44N 27. 28 l l f he-auttemttie-aetuatiem+f-the-Gotatt44 tem 44VAC a.akeup l mode-while-in-t he-Aethe-Statement-for-the-Chemieal4 Meet io n. l Swtensioesiot-twistitute .alathus44eehnical l Specifietaiem ? J ' 7 ACT!ON.. or4Wwauie-this-aetuation l pmteet*-thmetatetMtem. radiolog: cal even: l l 3/4.3.3.8 (Not Used) l SOUTil TEXAS - UNITS I & 2 113/43-5 AMENDMENT NOS.15 AND 5 i

t I ST-llL-Ai!-5000 I, 6 i Page 8 of 8 I!I.liCTRICAL POWi!R SYSTliMS IlASliS 3/4.N.4 (Not Used}E4EFIRIGAirF4)UIPMENT PH4FIEGlWE DEVIGFE i C*mtain.nent clearieal-penetratums-tmd-tenetmtian etadae:or, are pratee:cd by chher deenergiAng-ei+etstet*ld"..tuired-dtwing reactor-operatio: or b;. de:nons: rating the G. FhRARIM44-of-pr:....,.~ a n.,mA... _......tr......_....m.

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1 l i i P r i ATTACllMENT 4 TECilNICAL SPECIFICATION SCREENING EVALUATION BASED ON Tile FINAL POLICY STMEMENT CRITERIA i r b 1

I t e a ST-lR-AE-5000 Page 1 of 5 Technical Soecificalion Screenina Form (1) TECHNICAL SPECIFICATION Chemical Detection Systerns STP f.S. LOCATIONINUMBER 3.3.3. 7 l (2) EbALUATION BASED ON FINAL POLICY STATEMENT CRITERIA I is the iechnical Specincation app 1icable to: YES NO X (1) Installed instrumentation that is used to detect. and indicate in the control room. a significant abnormal degradation of the reactor coolant pressure boundary. X (2) A process variable. design feature. or operating restriction that ic an initial condition of a Design Bases Accident or Transient analysis that either assumes the failure of or presents a challenge to the integrity of a fission product { barrier. X (3) A structure, system. or component that is part of the primary success path and which functions or actuates to mitigate a Design Bases Accident or Transient that either assumes the failure of or presents a challenge to the integrity of a i fission product barrier. X (4) A structure. system. or component which operating experience or probabilistic safety assessment has shown to be significant to the public health and safety. If the answer to any one of the above questions is "YES" then the Specifications shall be included in the Technical Specifications. If the answer to all four Criteria is "N0" then the Specifications may be relocated to licensee-controlled documents.

9 ST-ill-AE-5000 Page 2 of 5 i Technical Specificalion Screenina form (3) DISCUSSION The Chemical Detection System Instrumentation is used to detect an accidental toxic gas release and isolate the control room atmosphere. An accidental toxic gas release is not a Design Basis Accident or transient. The Chemical Detection System Instrumentation is not installed instrumentation that is used to detect, and indicate in the control room. a signi5 cant abnormal degradation of the reactor coolant pressure boundary. The Chemical Detection System Instrumentation does not meet Criterion 1. The Chemical Detection System Instrumentation is not a process variable, design feature, or operating restriction that is an initial condition of a Design Bases Accident or Transient analysis that either assumes the failure of or presents a challenge to the integrity of a Mssion product barrier. The Chemical Detection System Instrumentation does not meet Criterion 2. The Chemical Detection System Instrumentation is not a structure. system. or component that is part of the primary success path and which functions or actuates to mitigate a Design Bases Accident or Transient that either assumes the failure of or presents a challenge to the integrity of a fission product barrier. The Chemical Detection System Instrumentation does not meet Criterion 3. The Chemical Detection System Instrumentation is not a structure. system. or component which operating experience or probabilistic safety assessment has shown to be signi5 cant to the public health and safety. The Chemical Detection System Instrumentation does not meet Criterion 4. (4) CONCLUS10N This Spec 1fication should be included in Technical Specifications. x This Specification may be relocated to a License-controlled Document. i l s

i ST-ill.-Al'.-5000 Page 3 of 5 lechnical Soccificalion Screening Form (1) 1ECHNICAL SPECIF1 CAT 10N Flectrical Eauinment Protective Devices-Containment Penetration Conductor Overcurrent Protective Devices STP T.S. LOCATION / NUMBER 3.8.4.1 (2) EVALUATION BASED ON FINAL POLICY STATEMENT CRITERIA is the technical Specificalion applicable to: YES NO X (1) Installed instrumentation that is used to detect, and indicate in the control room. a signincant abnormal degradation of the reactor coolant pressure boundary. X (a?) A process variable. design feature. or operaling restriction that is an initial condition of a Design Bases Accident or Transient analysis that either assixites the failure of or presents a challenge ta the integrity af a fiss1on product barrier. i _L_ (3) A structure, system, or canponent that is part af ihe primary success path and which functions or actuates to mitigate a Design Bases Accident or Transient that either assumes the failure of or presents a challenge to the integrity of a fiss1on product barrier. X (4) A structure. system, or canponent which operating experience or probabilistic safety assessment has shown to be significant to the public health and safety. If the answer io any one af the above questions is "YES" then ihe Specihcations shall be included in the Technical Specifications. If the answ?r to all four Criteria is "NO" then the Specificalions may be relocated to licensea-controlled documents. l i l

ST-HL-AE-5000 Page 4 of 5 Technical Soecihcation Screenina form (3) DISCUSSION The Electrical Equipment Protective Devices-Containment Penetration Conductor Overcurrent Protective Devices are installed to minimize the potential for a fault in a component inside containment. This prevents an electrical penetration from being damaged in such a way that the containment structure is breached. The Electrical Equipment Protective Devices-Containment Penetration Conductor Overcurrent Protective Devices are not installed instrumentation that is used to detect. and indicate in the control room. a signihcant abnormal degradation of the reactor coolant pressure boundary. The Electrical Equipment Protective Devices-Containment Penetration Conductor Overcurrent Protective Devices do not meet Criterion 1. The Electrical Equipment Protective Devices-Containment Penetration Conductor Overcurrent Protective Devices do help preserve the assumptions of the safety analysis by enhancing proper equipment operation. however they are not a process variable, design feature, or operating restriction that is an initial condition of a Design Bases Accident or Transient analysis that either assumes the failure of or presents a challenge to the integrity of a hssion product barrier. The Electrical Equipment Protective Devices-Containment Penetration Conductor Overcurrent Protective Devices do not meet Criterion 2. The Electrical Equipment Protective Devices-Containment Penetration Conductor Overcurrent Protective Devices provide equipment and distribution system protection from faults or improper operation of other protective devices in addition to that provided by the design of the distribution system. However, the Electrical Equipment Protective Devices-Containment Penetration Conductor Overcurrent Protective Devices are not a structure. system. or component that is part of the primary success path and which \\ functions or actuates to mitigate a Design Bases Accident or Transient that either assumes the failure of or presents a challenge to the integrity of a fssion product barrier. The Electrical Equipment Protective Devices-Containment Penetration Conductor Overcurrent Protective Devices do not meet Criterion 3. Ihe Electrical Equipment Protective Devices-Containment Penetration Conductor Overcurrent Protective Devices are not a structure, system, or component which operating experience or probabilistic safety assessment has shown to be significant to the public health and safety. The Electrical Equipment Protective Devices-Containment Penetration Conductor Overcurrent Protective Devices do not meet Criterion 4.

i ST-HL-AE-5000 Page 5 of 5 (4) CONCLUSION This Specihcation should be included in Technical Speci6 cations. x This Specification may be relocated to a License-controlled Document. I ~ r .-mw a--,, ,.-w-y ,w y -e e...-wy.-.wea%w-ir -9gw -9g+.wme-}}