ML20084B183

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Proposed Tech Specs 3.6.1.1,3.6.1.2 & 3.6.1.3 Re Local Leak Rate Testing
ML20084B183
Person / Time
Site: South Texas  STP Nuclear Operating Company icon.png
Issue date: 05/25/1995
From:
HOUSTON LIGHTING & POWER CO.
To:
Shared Package
ML20084B187 List:
References
NUDOCS 9505310162
Download: ML20084B183 (7)
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Text

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ST-IIL-AE-5091 Page 2 3/4.6 CONTAINMENT SYSTEMS ATTACIIMENT 6 1/L6.1 PRIMARY CONTAINMENT CONTAINMENT INTEGRITY LIMITING CONDITION FOR OPERATION 3.6.1.1 Primary CONTAINMENT INTEGRITY shall be maintained. APPLICABILITY: H0 DES 1, 2, 3, and 4. LCHOR:

  • Without primary CONTAINMENT INTEGRITY, restore CONTAINMENT INTEGRITY within I hour or be in at least HOT STANDBY within the next 6 hours and in COLD SHUTDOWN within the following 30 hours.

SURVEILLANCE RE0VIREMENTS 4.6.1.1 Primary CONTAINMENT INTEGRITY shall be demonstrated: At least once per 31 days by verifying that all penetrations

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capable of being closed by OPERABLE containment automatic isolation valves and required to be closed during accident conditions are closed by valves, blind flanges, or deactivated automatic valves secured in their positions, except as provided in Specification ^ 3.6.3; By verifying that each containment air lock is in compliance with b. the requirements of Specification 3.6.1.3; and After each closing of each penetration subject to Type 8 testing, c. except the containment air locks, if opened following a Type A or 8 test, by leak rate testing the seal with gas at a pressure no't less l rate f,-+these seals is added to the leakage rates determined 1. than P or pursuant to Specification 4.6.1.24. for all other Type B and C penetrations, the combined leakage rate is less than 0.60 L,.

  • Except valves, b51nd flanges, and deactivated autom tic valves which are incated inside the contati.r.ient and are locked, sealed or otherwise secured in the closed position. These penetrations shall be verified closed during each COLD SHUIDOWN except that such verification need not be performed more often than once per 92 days.

SOUTH TEXAS - UNITS 1 & 2 3/4 6-1 Unit 1 - Amendment No. 61 Unit 2 - Amendment No. 50 we.es<,s.ns oo2

1 l i l. 9' 4 ST-11L-AE-5091 Page 3 ) CONTAINMENT SYSTEMS ATTACIIMENT 6 CONTAINMENT LEAKAGE I LTHITING CONDITION FOR OPERATION Containment leakage rates shall be limite'd to: 3.6.1.2 An overall integrated leakage rate Ef less than or equal to a. -P'Afr-for all penetrations b. A combined leakage rate of less than 0.60 L and valves subject to Type B and C tests, w$en pressurized to P,. APPLICA81t111: HODES 1, 2, 3, &nd 4. AC.T104: With either ti.e measured overall integrated containment leakage rate exceeding ll penetrations and valves subjecf. or the measured combined leakage rate for ato Types B and 0.75 L andthecombinedleakageratefor integrated leakage rate to less than 0.75 L,ts to less than 0.60 L, prhr te til penetrations subject to Type B and C tes prrform 200*f. or -incresting-the Resjew. 'heclent Systein teiaperature ebev te ne, Actried A uha 3. /.. l.1. SURVEILLANCE REOUIREMENTS -The ;ntainment it:kage-n tes-shall b: dem nstate -at-t e f;1hwing-d h 4.6.1.2 with th: criterier-test schedtrie end shdi be determined h ;;nferan:: eethods-tad provisi;ns sp;;if4 d or ndersed h App:ndi* J ;r 10-GFR Pert 50r Three Type A teett-(OvereH-lategnted Cent +%ent-L :k:ge Rate) -e. shall-be conducted :t 'O i 10 m: nth i terv:h dark; shutd;wn at a-l n -pressttre-eet less th:n P,, '!.2 p;ig, d:rb; cath 10 y;;r stedee-The-th4rd-te:t of ::ch ::t shall b; ::nducted during the- -peH cd. i spection;- -shtttdem-for the 10 ye:r phnt inter" ice n Pe,e Qu c n ce q w.!sk 4 M. A. e-n %'.ns % s anel {alc-a s ~t he CA> a kn d ~+- ac \\uc.\\c. -{- e s kny ge. & ak e.3 e t ce-p ~ d el \\k 3c c-obb~ Cc W Ok- \\O CE L AeeeA w L as / ~ gcM A 6-6"P 'M-g SOUTH TEXAS - UN]15 ) t. 2 3/4 6-2 Unit 1 - Amendment No. M,61 Unit 2 - Amendment No. M,50 n c.9sws.t35on:

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I ST-liL-AE-5091 Page 5 i CONTAINMENT SYSTEMS ATTACIIMENT 6 SURVEILLANCE REOUIREMENTS (Continued) 1-Lesks;e ' rem iselatten valver that Sr ::al:d elth fluid frea e Se: _g. Syst:: ::y b; :::1;d:d, ::Sj;;t t; the previsien vi App.ndia J,. -Section-III.C.3, wh:n d:t: mining th: ::: bin:d 1 :k:g rate pre;id d th: S::1-Sy:.te: :nd v:1v:: cr; pras:;rized te et lee.t 1.10 F,.no the :::1 r,ym: ::p: ity 1: 2d: gat: t: :: int:!n :ystem pressgre fer- -et-least-30-dayst-- Leaka p b-Type B tests for penetration: ceploying-a-continu:::- o", '..^u.-..'.,- 440ni tori ng- &y+te.. ^,.. ".. ' - -.. >".. * - >. '..,,,.., - '. 3, ~ g -no-greater th:n ente per 3 years; :nd i. The provisions of Specification 4.0.2 are not applicable. 1 SOUTH TEXAS - UNils 1 & 2 3/4 6-4 Unit 1 - Arrendment No. 61 Unit 2 - Amendment No. 50 t MC-95.9ttM 0(c I a

ST-IIL-/dE-5091 Page 6 CONTAINMENT SfSTEMS ff ,127 [TTACliMENT 6 ( [g{IAINMENT AIR LOCKS LIMITING CONOTTION FOR OPERATION 3.6.1.3 Each containment air lock shall be OPERABLE with: Both doors closed except when the air lock is being used for normal a. transit entry and exit through the containment, then at least one air lock door shall be closed, and b. An overall air lock leakage rate of less than or equal to 0.05 L, at l P., -4h2-ptf97-APPLICABILITY: NODES 1, 2, 3, and 4. ACTION: With one containment air lock door inoperable: a. Maintain at least the OPERABLE afr lock door closed and either 1. restore the inoperable air lock door to OPERABLE status within 24 hours or lock the OPERABLE air lock door closed; Operation may then continue until performance of the next 2. required overall air lock leakage test provided that the OPERABLE air lock door is verified to be locked closed at least once per 31 days; 3. Otherwise, be in at 1 cast HOT STANDBY within the next 6 hours and in COLD SHUTDOWN within the following 30 hours; and 4. The provisions of Specification 3.0.4 are not applicable. b. With the containment air lock inoperable, except as the result of an inoperable air lock door, maintain at least one air lock door closed; restore the inoperable air lock to OPERABLE status within 24 hours or be in at least HOT STANDBY within the next 6 hours and in COLD SHUTDOWN within the following 30 hours. 1 SOUTH TEXAS - UNITS 1 & 2 3/4 6-5 Unit 1 - Amendment No. 61 Unit 2 - Amendment No. 50 1 l TSC 9095135 (X12

F t 1 ST-HL-AE-5091 Page 7 CONTAINMENT SYSTEMS ATTACHMENT 6 SURVF11 LANCE REOUIREMENTS 4.6.1.3 Each containment air lock shall be demonstrated OPERABLE: Within 72 hours following each closing, except when the air lock is a. being used for multiple entries, then at least once per 72 hours, by verifying seal leakage is less than 0.01 L as determined by precision flow measurements when measured for at least 30 seconds with the volume between the seals at a constant pressure not less than P,; b. By conducting overall air lock leakage tests at not less than P,, 4112-p+49r and verifying the overall air lock leakage rate is within its limit: 1) At least once per 6 months,* and 2) Prior to establishing CONTAINMENT INTEGRITY when maintenance has been performed on the air lock that could affect the air lock sealing capability.** At least once per 6 months by verifying that only one door in each c. air lock can be opened at a time. d." By verifying at least once per 7 days that the instrument air pressure in the header to the personnel airlock seals is 2 90 psig. By verifying the door seal pneumatic system OPERABLE at least once e. per 18 months by conducting a seal pneumatic system leak test and verifying one of the following: 1) That system pressure does not decay more than 1.5 psi from 90 psig minimum within 24 hours, or 2) That system pressure does not decay more than.50 psi from 90 psig minimum within 8 hours.

  • The provisions of Specification 4.0.2 are not applicable.
    • This represents an exemption to Appendix J, paragraph 111.D.2 of 10 CFR Part 50.

SOUTH TEXAS - UNITS 1 & 2 3/4 6-6 Unit 1 - Amendment No. 61,64 Unit 2 - Amendment No. 60,53 nc-es 93.ns m: l _}}

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