ML20247L263
| ML20247L263 | |
| Person / Time | |
|---|---|
| Site: | Diablo Canyon  |
| Issue date: | 03/27/1989 |
| From: | Knighton G Office of Nuclear Reactor Regulation |
| To: | |
| Shared Package | |
| ML20247L266 | List: |
| References | |
| NUDOCS 8904050421 | |
| Download: ML20247L263 (7) | |
Text
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UNITED STATES
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NUCLEAR REGULATORY COMMISSION To {
'l WASHINGTON, D. C. 20555
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1 PACIFIC GAS AND ELECTRIC COMPANY l
l DIABLO CANYON NUCLEAR POWER PLANT, UNIT 1 DOCKET N0. 50-275 i
AMENDMENT TO FACILITY OPERATING LICENSE i
i l
Amendment No. 34 l
License No. DPR-80 j
l 1.
The Nuclear Regulatory Commission (the Conunission) has found that-I A.
The application for amendment by Pacific Gas & Electric Company (the licensee) dated April 18, 1988 complies with the standards and l
requirements of the Aton:lc Energy Act of 1954, as amended (the Act), and the Commission's regulations set forth in 10 CFR Chapter i
I; B.
The facility will operate in conformity with the ap)lication, the provisions of the Act, and the regulations of tie Commission; C.
There is reasonable assurance (i) that the activities authorized by this amendment can be conducted without endangering the health and safety of the public, and (ii) that such activities will be conducted in compliance with the Commission's regulations; D.
The issurice of this amendment will not be inimical to the common defense and security or to the health and safety of the public; i
and E.
The issuance of this amendment is in accordance with 10 CFR Part 51 of the Commission's regulations and all applicable requirements have been satisfied.
8904050421 890327 PDR ADOCK 05000275 P
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Accordingly, the license is amended by changes to the Technical Specifications as indicated in the attachment to this license amendment, and paragraph 2.C.(2) of Facility Operating License No. DPP-80 is hereby amended to read as follows:
(2)TechnicalSpecifications The Technical Specifications contained in Appendix A and the Environmental Protection Plan contained in Appendix B, as revised j
through Amendment No. 34, are hereby incorporated in the license.
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Pacific Gas & Electric Company shall operate the facility in 6ccordance with the Technical Specifications and the Environmental I
Protection Plan, except where otherwise stated in specific license j
conditions.
3.
This license amendment becomes effective at the date of its issuance.
FOR THE NUCLEAR REGULATORY COMMISSION
<# v George'W. Knigh} ton, Director i
Project Directorate V Division of Reactor Projects - III, IV, V and Special' Projects l
Attachment:
l Changes to the Technical Specifications Date of Issuance: March 27, 1989 i
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UNITED STATES
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g NUCLEAR REGULATORY COMMISSION l
WASHINGTON, D. C. 20555 s.,*..,*/
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PACIFIC GAS AND ELECTRIC COMPANY DIABLO CANYON NUCLEAR POWER PLANT, UNIT 2 DOCKET NO. 50-323 l
AMENDMENT TO FACILITY OPERArING LICENSE Amendment No. 33 License No. DPR-82 1.
The Nuclear Regulatory Comission (the Comission) has found that:
A.
The application for amendment by Pacific Gas & Electric Company (the licensee) dated April 18, 1988 complies with the standards and requirements of the Atomic Energy Act of 1954, as amended (the Act), and the Comission's regulations set forth in 10 CFR Chapter I;
B.
The facility will o:erate in conformity with the ap)11 cation, the provisions of t1e Act, and the regulations of t1e Comission; C.
There is reasonable assurance (i) that the activities authorized by this amendment can be conducted without endangering the health and safety of the public, and (ii) that such activities will be conducted in compliance with the Commission's regulations; D.
The issuance of this amendment will not be inimical to the common defense and security or to the health and safety of the public; and E.
The issuance of this amendment is in accordance with 10 CFR Part 51 of the Comission's regulations and all applicable requirements have been satisfied.
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2.
Accordingly, the license is amended by changes to the Technical Specifications as indicated in-the attachment to this license amendment, and paragraph 2.C.(2) of Facility Operating License No. DPR-82 is hereby amended to read as follows:
(2)TechnicalSpecificatiog The Technical Specifications contained in Appendix A and the Environmental Protection Plan contained in Appendix B, as revised through Amendment No. 33
, are hereby incorporated in the license.
Pacific Gas & Electric Company shall operate the facility in accordance with the Technical Specifications and the Environmental Protection Plan, except where otherwise stated in specific license conditions.
3.
This license amendment becomes effective at the date of its issuance.
FOR THE NUCLEAR REGULATORY COMMISSION I
George,. Knigh
, Director Proje Directorate V Division of Reactor Projects - III, IV, V and Special Projects
Attachment:
Changes to the Technical Specifications Date of Issuance: March 27, 1989 l
l
4 ATTACHMENT T0' LICENSE AMENDMENT NOS. 34 AND 33 FACILITY OPERATING LICENSE NOS. DPR-80 AND DPR-82
-DOCKET NOS. 50-275 AND 50-323 Replace the following pages of the Appendix "A" Technical Specifications with the attached pages. The revised pages are identified by Amendment number and contain vertical lines indicating the. area of change.
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MMITINGSAFETYSYSTEMSETTINGS BASES Steam Generator Water Level The Steam Generator Water Level Low-Low trip protects the reactor from loss of heat sink in the event of a sustained steam /feedwater flow mismatch resulting from loss of normal feedwater.
The specified Setpoint provides allowances for starting delays of the Auxiliary Feedwater System.
Steam /Feedwater Flow Mismatch and Low Steam Generator Water Level The Steam /Feedwater Flow Mismatch in coincidence with a Steam Generator Low Water Level trip is not used in the transient and accident analyses but is included in Table 2.2-1 to ensure the functional capability of the specified trip settings and thereby enhance the overall reliability of the Reactor Trip System.
This trip is redundant to the Steam Generator Water Level Low-Low trip.
The Steam /Feedwater Flow Mismatch portion of this trip is activated when the steam flow exceeds the feedwater flow by greater than or equal to 1.45 x 106-lbs/hr for Unit 1 and 1.49 x 106 lbs/hr for Unit 2.
The Steam Generator Low Water level portion of the trip is activated when the water level drops below 7.2%, as indicated by the narrow range instrument.
These trip values include sufficient allowance in excess of normal operating values to preclude spurious trips but will initiate a Reactor trip before the steam generators are dry.
Therefore, the required capacity and starting time requirements of the auxiliary feedwater pumps are reduced and the resulting thermal transient on the Reactor Coolant System and steam generators is minimized.
Ujedervoltage and Underfrequency - Reactor Coolant Pump Busses The Undervoltage and Underfrequency Reactor Coolant Pump Bus trips provide core protection against DNB as a result of complete loss of' forced coolant flow.
The specified Setpoints assure a Reactor trip signal is generated before the Low Flow Trip Setpoint is reached.
Time delays are incorporated in the Under-frequency and Undervoltage trips to prevent spurious Reactor trips from momen-tary electrical power transients.
For undervoltage, the delay is set so + hat the time required for a signal to reach the Reactor trip breakers following the simultaneous trip of two or more reactor coolant pump bus circuit breakers shall not exceed 0.9 seconds.
For underfrequency, the delay is set so that the time required for a signal to reach the Reactor trip breakers after the Underfrequen-cy Trip Setpoint is reached shall not exceed 0.3 seconds.
On decreasing power, the Undervoltage and Underfrequency Reactor Coolant Pump Bus trips are automa-tically blocked by P-7 (a power level of approximately 10% of RATED THERMAL POWER with a turbine impulse chamber pressure at approximately 10% of full power equivalent); and on increasing power, reinstated automatically by P-7.
DIABLO CANYON - UNITS 1 & 2 B 2-7 Amendment Nos.34 and 3;
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