ML20045B670

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Amend 21 to License NPF-86,revising App a TS Re ECCS, Specifically,Amend Modifies Acceptance Value for Surveillance Requirement Intended to Demonstrate That ECCS Capable of Delivering Adequate Flow of Cooling Water
ML20045B670
Person / Time
Site: Seabrook 
Issue date: 06/14/1993
From: Stolz J
Office of Nuclear Reactor Regulation
To:
North Atlantic Energy Service Corp
Shared Package
ML20045B671 List:
References
NPF-86-A-021 NUDOCS 9306180252
Download: ML20045B670 (5)


Text

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UNITED STATES l'

NUCLEAR REGULATORY COMMISSION n

S E

.E WASHINGTON, D. C. 20555 NORTH ATLANTIC ENERGY SERVICE CORPORATION. ET Al*

DOCKET NO. 50-443 SEABROOK STATION. UNIT NO. 1 AMENDMENT TO FACILITY OPERATING LICENSE Amendment No. 21 License No. NPF-86 1.

The Nuclear Regulatory Commission (the Commission) has found that:

A.

The application for amendment by North Atlantic Energy Service Corporation, et al. (the licensee), dated October 22, 1992, 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; tl.

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 Commirsion'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.

' North Atlantic Energy Service Corporation (NAESCO) is authorized to act as agent for the: North Atlantic Energy Corporation, Canal Electric Company, The Connecticut Light and Power Company, EUA Power Corporation, Hudson Light and Power Department, Massachusetts Municipal Wholesale Electric Company, Montaup Electric Company, New England Power Company, New Hampshire Electric Cooperative, Inc., Taunton Municipal Light Plant, The United Illuminating Company, and Vermont Electric Generation and Transmission Cooperative, Inc.,

and has exclusive responsibility and control over the physical construction, operation, and maintenance of the facility.

9306180252 930614 PDR ADOCK 0500 3

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. NPF-86 is hereby amended to read as follows:

(2) Technical Soecifications The Technical Specifications contained in Appendix A, as revised through Amendment No. 21, and the Environmental Protection Plan contained in Appendix B are incorporated into Facility License No.

NPF-86.

NAESCO shall operate tha facility in accordance with the Technical Specifications and the Environmental Protection Plan.

3.

This license amendment is effective as of the date of its issuance, to be implemented within 60 days of issuance.

FOR THE NUC'_ EAR REGULATORY COMMISSION W

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/ Job F. Stolz, Direc r

i Pr ject Directorat

-4

' Division of Reactor Projects - I/II Office of Nuclear Reactor Regulation

Attachment:

Changes to the Technical Specifications Date of Issuance:

June 14, 1993

I' ATTACHMENT TO LICENSE AMENDMENT NO. 21 FACILITY OPERATING LICENSE NO. NPF-86 DOCKET N0. 50-443 Replace the following pages of Appendix A, Technic *al Specifications, with the attached pages as indicated. The revised pages are identified by amendment number and contain vertical lines indicating the areas of change. Overleaf pages have been provided.

Remove Insert 3/4 5-7 3/4 5-7 3/4 5-3*

3/4 5-8*

l i

EMERGENCY CORE COOLING SYSTEMS ECCS SUBSYSTEMS - T,y GREATER THAN OR E00AL TO 350*F SURVEILLANCE RE0VIREMENTS 4.5.2 (Continued) g.

By verifying the correct position of each electrical and/or mechanical position stop for the following ECCS throttle valves:

1)

Within 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br /> following completion of each valve stroking operation or maintenance on the valve when the ECCS subsystems are required to be OPERABLE, and 2)

At least once per 18 months.

Hiah Head SI System Intermediate Head SI System Valve Number Valve Number SI-V-143 SI-V-80 1

SI-V-147 SI-V-85 SI-V-151 SI-V-104 SI-V-155 SI-V-109 SI-V-Il7 SI-V-121 SI-V-125 SI-V-129 h.

By performing a flow balance test, during shutdown, following completion of modifications to the ECCS subsystems that alter the subsystem flow characteristics and verifying that.

1)

For centrifugal charging pump lines, with a single pump running:

a)

The sum of the injection line flow rates, excluding the highest flow rate, is greater than or equal to 337 gpm, and

- l b)

The total pump flow rate is less than or equal to 550 gpm.

1 2)

For Safety Injection pump lines, with a-single pump running:

a)

The sum of the injection line flow rates, excluding the highest flow rate, is greater than or equal to 445 gpm, and i

b)

The total pump flow rate is less than or equal to 660 gpm.

3)

For RHR pump lines, with a single pump running, the sum of the injection line flow rates is greater than or equal to 3869 l

gpm.

4 SEABROOK - UNIT 1 3/4 5-7 Amendment No. 21

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EMERGENCY CORE COOLING SYSTEMS 3/4.5.3 ECCS SUBSYSTEMS - T,y, LESS THAN 350*F LIMITING CONDITION FOR OPERATION 3.5.3.1 As a minimum, one ECCS subsystem comprised of the following shall be OPERABLE:

a.

One OPERABLE centrifugal charging pump, b.

One OPERABLE RHR heat exchanger, c.

One OPERABLE RHR pump, and d.

An OPERABLE flow path capable of taking suction from the refueling water storage tank upon being manually realigned and transferring suction to the containment sump during the recirculation phase of operation.

APPLICABILITY: MODE 4.

ACTION:

a.

With no ECCS subsystem OPERABLE because of the inoperability of either the centrifugal charging pump or the flow path from the refueling water storage tank, restore at least one ECCS subsystem to OPERABLE status within 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> or be in COLD SHUTDOWN within the next 20 hours2.314815e-4 days <br />0.00556 hours <br />3.306878e-5 weeks <br />7.61e-6 months <br />.

b.

With no ECCS subsystem OPERABLE because of the inoperability of either the residual heat removal heat exchanger or RHR pump, restore at least one ECCS subsystem to OPERABLE status or maintain the Reac-tor Coolant System T,y, less than 350*F by use of alternate heat removal methods.

c.

In the event the ECCS is actuated and injects water into the Reactor Coolant System, a Special Report shall be prepared and submitted to the Commission pursuant to Specification 6.8.2 within 90 days describing the circumstances of the actuation and the total accumulated actuation cycles to date. The current value of the usage factor for each affected Safety Injection nozzle shall be provided in this Special Report whenever its value exceeds 0.70.

4 SEABROOK - UNIT 1 3/4 5-8

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