ML19225A827

Proposed Changes to Tech Specs Re Safety Relief Valve Tail Pipe Monitoring Sys

ML19225A827
Person / Time
Site:	Hatch
Issue date:	07/13/1979
From:	GEORGIA POWER CO.
To:
Shared Package
ML19225A825	List: ML19225A824 ML19225A827
References
NUDOCS 7907200341
Download: ML19225A827 (4)

Text

ATTACHMENT 1 NRC DOCKET 50-321 OPERATING LICENSE DPR-57 EDWIN I. HATCH NUCLEAR PLANT UNIT 1 PROPOSED CHANGE TO TECHNICAL SPECIFICATIONS Pursuant to 10 CFR 170.12 (c), Georgia Power Company has evaluated the attached propcsed amendment to Operating License DPR-57 and have determined that:

a) The proposed amendment does not require the evaluation of a new Safety Analysis Repctr or rewrite of the f acility license; b) The proposed amendment does not contain several complex issues, does not involve ACRS review, or does not require an environmental impact statement; c) The proposed amendment does not involve a complex issue, an environ-mental issue or more than one safety issue; d) The proposed amendment does involve a single issue; namely, additional Limiting Conditions for Operation and Surveillance Requirements that apply to the relief / safety valve tail pipe monitoring system which has been installed on Unit 1; and e) The proposed amendment is therefore a Class III amendment.

65 295 790720o Pli ,f

ATTACHMENT 2 NRC DOCKET 50-321 OPERATING LICENSE DPR-57 EDWIN I. HATCH NUCLEAR PLANT UNIT 1 PR0_ POSED CHANGE TO TECHNICAL SPECIFICATIONS The proposed change to the Technical Specifications would be incorporated as follows:

Remove Page Insert Page 3.6-9 3.6-9 3.6-9a 445 296

LIMITING CONDITIONS FOR OPERATION SURVEILLANCE REQU_IPIMENTS 3.6.H. Relief / Safety Valves 4.6.H. Relief / Safety Valves

1. When more than one relief / safety 1. End of Operating Cvele valve is known to be failed an orderly shutdown shall be initiated Approximately one-half of all and the reactor depressurized to relief / safety valves shall be less than 113 psig within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />. benchchecked or replaced with Prior to reactor startup from a a benchchecked valve each re-cold condition all relief / safety fueling outage. All 11 valves valves shall be operable. will have been checked or replaced upon the completion of every second operating cycle.

2. With one or more relief / safety 2. Each Operating Cycle valve (s) stuck open, place the reactor mode switch in the shutdown position. Once during each operating cycle, at a reactor pressure

>100 psig each relief valve shall be manually opened until thermocouples downstream of the valve indicate steam is flowing from the valve.

3. With one or more relief / safety 3. Integrity of Relief Valve Bellows

• valve tail pipe pressure switches inoperable and the associated The integrity of the relief valve relief / safety valve (s) otherwise bellows shall be continuously indicated to be open, place the monitored and the pressure switch reactor mode switch in the shutdown calibrated once per operating cycle position. and the accumulators and air piping shall be inspected for leakage once per operating cycle.

4. Relief Valve Maintenance At least one relief valve shall be disassembled and inspected each operating cycle.

5. Operability of Tail Pipe Pressure Switches The tail pipe pressure switch of each relief / safety valve shall be demonstrated operable by performance of a:

a. Functional Test:

445 297 1. At least once per 31 days, except that all portions of instrumentation inside the primary containment may be excluded from the

• Does not apply to two-stage Target Rock SRVs functional test, and 3.6-9

SURVEILLANCE REQUIREMENTS LillITING CONDITIONS FOR Ol'ERATION 4 . 6 . 11 . Relief / Safety Valves (Continued)

5. Operability of Tail Pipe Pressure Switches

a. Functional Test:

2. At each scheduled outage greater than 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> during which entry is made into the primary containment, if not performed within the previous 31 days.

b. Calibration and verifying the setpoint to be 20 + 5 psig at least once per 18 months.

Jet Pumps I. Jet Pumps

.I.

Whenever both recirculating pumps Whenever the reactor is in the Start & Ilot Standby or Run Mode are operating with the reactor in with both recirculating pumps the Start & llot Standby o'. Run Mode, operating, all jet pumps shall be jet pump operability sha.7.1 be checked operable. If it is determined that daily by verifying that the following a jet pump is inoperable, an orcerly conditions do not occur simultaneously.

shutdown shall be initiated and the 1. The two recirculation loops have reactor shall be in the Cold Shut-down Condition with 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />. a flow imbalance of 15% or more when the pumps are operated at the same speed.

A45 2.98 3.6-9a