ML20083A002

Proposed Tech Specs,Revising LCO 3.4.2.2 & Table 3.7-2 of TS by Relaxing Lift Setting Tolerance of Pressurizer Safety Valves from +1% to +2% & MSSV from +1% to +3%

ML20083A002
Person / Time
Site:	South Texas
Issue date:	05/02/1995
From:	HOUSTON LIGHTING & POWER CO.
To:
Shared Package
ML20083A000	List: ML20083A002 ST-HL-AE-5077, Application for Amend to Licenses NPF-76 & NPF-80,revising LCO 3.4.2.2 & Table 3.7-2 of TSs by Relaxing Lift Setting Tolerance of Pressurizer Safety Valves from +1% to +2% & MSSV from +1% to +3%
References
NUDOCS 9505090239
Download: ML20083A002 (3)

Text

A o

4 4

4 y

ATTACHMENT 3 MARKED UP PAGES FOR PROPOSED CHANGES TO TECHNICAL SPECIFICATIONS m,,,,..,

9505090239 950502 PDR ADOCK 05000498 P

PDR

A ST-IIL-AE-5077 Attaclunent 3 Page 1 of 2 REACTOR COOLANT SYSTEM

- OPERATING LIMITING CONDITION FOR OPERATION 3.4.2.2 All precurizer Code safety valves shall be OPERABLE with a lift setting' of 2485 psig i + 2 %.* 8 APPLICABILITY: MODES 1,2 and 3.

A_CTION:

With one pressurizer Code safety valve inoperable, either restore the inoperable valve to OPERABLE

. status within I hour or be in at least HOT STANDBY within 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> and in at least HOT SIIUTDOWN within the following 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br />.

SURVEILLANCE REQUIREMENTS 4.4.2.2 No additional requirements other than those required by Specification 4.0.5.

The lift setting pressure shall correspond to ambient conditior,s of the valve at nominal naerating temperature and pressure.

2 The as'left lift setting shall be within '1% following valve testing; i

SOUTil TEXAS - UNITS I & 2 3/44-8 Unit 1 - Amendment No. 59 Unit 2 - Amendment No. 47

ST-HL-AE-5077 Page 2 of 2 i

TABLE 3.7-2 STEAM LINE SAFETY VALVES PER LOOP VAI,VE NUMBER LIFT SETTING :1 (i 4-3% ??

ORlFICE SIZE I.OOP A LOOPB LOOP C LOOP D 1.

PSV-7410 PSV-7420 PSV-7430 PSV-7440 1285 psig 16 in.2

- 2.

PSV-7410A PSV-7420A PSV-7430A PSV-7440A 1285 psig

- 16 in.2 3.

PSV-7410B PSV-7420B PSV-7430B PSV-7440B 1305 psig 16 in.2 4.

PSV-7410C PSV-7420C PSV-7430C PSV-7440C 1315 psig 16 in.2 -

5.

PSV-7410D PSV-7420D PSV-7430D PSV-7440D 1325 psig 16 in.2 l

'I M The litt setting pressure shall correspond to ambient conditions of the valve at nominal operating temperature and pressure.

• The as left, lift settigshall be;within11% followingyalvs;tesfmp; SOUTil TEXAS'- UNITS 1 & 2 3/47-3

.1

.-