ML14183A323
| ML14183A323 | |
| Person / Time | |
|---|---|
| Site: | Robinson  |
| Issue date: | 09/05/1995 |
| From: | Matthews D NRC (Affiliation Not Assigned) |
| To: | |
| Shared Package | |
| ML14183A324 | List: |
| References | |
| NUDOCS 9509080304 | |
| Download: ML14183A323 (5) | |
Text
UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 20555-0001 CAROLINA POWER & LIGHT COMPANY DOCKET NO. 50-261 H. B. ROBINSON STEAM ELECTRIC PLANT, UNIT NO. 2 AMENDMENT TO FACILITY OPERATING LICENSE Amendment No. 166 License No. DPR-23
- 1.
The Nuclear Regulatory Commission (the Commission) has found that:
A.
The application for amendment by Carolina Power & Light Company (the licensee), dated June 3, 1995, as supplemented on August 7, 1995, complies with the standards and requirements of the Atomic Energy Act of 1954, as amended (the Act), and the Commission's rules and regulations set forth in 10 CFR Chapter I; B.
The facility will operate in conformity with the application, the provisions of the Act, and the rules and regulations of the 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 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 Commission's regulations and all applicable requirements have been satisfied.
- 2.
Accordingly, the license is amended by changes to the Technical Specifications, as indicated in the attachment to this license amendment; and paragraph 3.B. of Facility Operating License No. DPR-23 is hereby amended to read as follows:
9509080304 950905 PDR ADOCK 05000261 P
-2 B. Technical Specifications The Technical Specifications contained in Appendices A and B, as revised through Amendment No. 166, are hereby incorporated in the license. Carolina Power & Light Company shall operate the facility in accordance with the Technical Specifications.
- 3.
This license amendment is effective as of the date of its issuance and shall be implemented within 60 days.
FOR THE NUCLEAR REGULATORY COMMISSION David B. Matthews, Director Project Directorate II-1 Division of Reactor Projects -
I/II Office of Nuclear Reactor Regulation
Attachment:
Changes to the Technical Specifications Date of Issuance: September 5, 1995
ATTACHMENT TO LICENSE AMENDMENT NO. 166 FACILITY OPERATING LICENSE NO. DPR-23 DOCKET NO. 50-261 Replace the following pages of the Appendix A Technical Specifications with the enclosed pages. The revised areas are indicated by marginal lines.
Remove Pages Insert Pages 3.2-1 3.2-1 3.2-4 3.2-4
3.2 CHEMICAL 0 VOLUME CONTROL SYSTEM Applicability Applies to the operational status of the Chemical and Volume Control System.
ObJective To define those conditions of the Chemical and Volume Control System necessary to ensure safe reactor operation.
Specification 3.2.1 When fuel is in the reactor there shall be at least one flow path to the core for boric acid injection. The minimum capability for boric acid injection shall be equivalent to that supplied from the refueling water storage tank.
3.2.2 The reactor shall not be made critical unless the following Chemical and Volume Control System conditions are met:
- a.
Two charging pumps shall be operable'.
- b.
Both boric acid transfer pumps shall be operable.
- c.
The boric acid tanks together shall contain a total minimum of 3080 gallons of 20,000 to 22,500 ppm boron solution at a temperature of at least 1450F.
- d.
System piping, instrumentation controls, and valves shall be operable to the extent of establishing one flow path from the boric acid tanks and one flow path from the refueling water storage tank to the Reactor Coolant System.
'The Emergency Power sources are not required for operability of the charg ing pumps.
3.2-1 Amendment No. 166
- c.
Tho fety injection pumps can take ir suction from the re ing water storage tank.
System reliability is reduced when two of the three charging pumps are out of service; therefore, the outage time has been limited. Since credit is not taken for the charging pumps as accident mitigation equipment (i.e.,
engineered safety feature equipment assumed to function in an accident analyzed in the Final Safety Analysis Report (FSAR), Chapter 15), operability of the respective emergency electrical power source (i.e.. emergency diesel generator) is not necessary for the operability of a charging pump.
The quantity of boric acid in storage from either the boric acid tanks or the refueling water storage tank is sufficient and fast enough to borate the reactor to cold shutdown at any time during core life. Thus, the out of service interval for the boric acid pumps is considered conservative since borated water is also available from the refueling water storage tank via the charging pumps. Approximately 2640 gallons of the 20,000 to 22,500 ppm boron solution are required to meet cold shutdown conditions.14 Thus a minimum of 3080 gallons in the boric acid tanks is specified. An upper concentration limit of 13% boric acid (22,500 ppm) in the tank is specified to maintain solution solubility at the specified low temperature limit of 1450F. Two channels of heat tracing are installed on lines normally containing concentrated boric acid solution to maintain the specified low temperature limit. The plant operating procedures require immediate action to effect rep.airs of an inoperable component; therefore, in most cases repairs will be completed in less than the specified repair time.
When borating to the cold shutdown condition using boric acid from the boric acid tanks, make up water must be supplied to compensate for shrinkage of the reactor coolant. Sufficient water for this purpose must be maintained in the primary water storage tank and the refueling water storage tank as required in 3.2.2.f and 3.3.1.1.a.
The overall reliability of the chemical and volume control system is improved by its normal mode of operation, i.e., at least one charging pump, one boric acid transfer pump and one boric acid tank are in continuous operation.
The plant operating procedures will require immediate action to effect repairs of an inoperable component and, therefore, in most cases repairs 3.2-4 Amendment No.166