ML19290A313

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Amend 19 to DPR-50 Requiring Positive Blocking of Electrical Power to Core Flood Tank Vent Valves Except Under Specified Conditions & Requiring Periodic Venting of Pumps & Lines Associated W/High & Low Pressure Injection Sys
ML19290A313
Person / Time
Site: Crane Constellation icon.png
Issue date: 08/23/1976
From: Reid R
Office of Nuclear Reactor Regulation
To:
Shared Package
ML19290A311 List:
References
NUDOCS 7911060554
Download: ML19290A313 (7)


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'*g' UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D. C. 20555 METROPOLITAN EDISON COMPANY JERSEY CENTRAL POWER AND LIGHT COMPANY PENNSYLVANIA ELECTRIC COMPANY DOCKET NO. 50-289 THREE MILE ISLAND NUCLEAR STATION, UNIT NO. 1 AMENDMENT TO FACILITY OPERATING LICENSE Amendment No.19 License No. OPR-50 1.

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

A.

The application for amendment by Metropolitan Edison Company, Jersey Central Power and Light Company, and Pennsylvania Electric Company (the licensees) dated July 12, 1976, complies with the standards and requirements of the Atomic Energy Act of 1954, as amended (the Act), and the Commission's rules and reoulations 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 reoulations of the Commission; C.

There is reasonable assurance (1) 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.

1555 199 7911oe055y

2.

Accordingly, the license is amended by changes to the Technical Specifications as indicated in the attachment to this license amendment.

3.

This licante amendment is effective as of the date of its issuance.

FOR THE NUCLEAR REGULATORY COMMISSION Y

/

Robert W. Reid, Chief Operating Reactors Branch #4 Division of Operating Reactors

Attachment:

Changes to the Technical Specifications Date of Issuance: August 23, 1976 1555 200

ATTACHMENT TO LICENSE AMENDMENT NO. 19 FACILITY OPERATING LICENSE NO. DPR-50 DOCKET NO. 50-289 Revise Appendix A as follows:

Remove Pages Insert Pages 3-21 & 3-22 3-21 & 3-22 4-41 & 4-42 4-41 & 4-42 Changes on the revised pages are indicated by marginal lines. Pages 3-21 and 4-42 are unchanged and are included for convenience only.

I555 20i

3. 'i EMERGDiCY CORE COOLING, REACOR BU!LDING }ERGENCY COOLINC AND REACOR BUILDING SPRAY SYS':DG Applicability Applies to the operating status of the emergency core coolin6, reactor building emergency cooling, and reactor building spray syste=s.

Objective To define the conditions necessary to assure imnediate availability of the emergency core cocling, reactor building emergency cooling and reactor buildin6 spray systems.

Speci fi cation 331 he reactor s si, not be made critical unless the following conditions are met:

3 3 1.1 Injection Syste=3 he borated water storage tank shall contain a minimum of a.

350,000 gallons of water having a minimum concentration of 2,270 ppm boron at a temperature not less than 40 F.

De manual valve on the discharge of the BWST shall be locked open.

b.

Wo makeup pu=ps are operable in the engineered safeguards mode povered from independent essential busses.

Wo decay heat removal pumps are operable, c.

d.

Wo decay heat removal coolers and their cooling water supplies are operable.

(See Specification 3.3.1.k) e.

Wo EWST level instru=ent channels are operable.

f.

he two reactor building e*np isolation valves (DifV6A/B) shall be either manually ce remote-nanually operable.

3.3 1.2 Core Flooding System Wo core flooding tanks eaet. containing 10h0 2 30 ft3 of borated a.

water at 600 1 25 psig shall be available.

b.

Core floodin6 tank boron concentration shall not be less than 2,270 ppm boron.

c.

The electrically operated discharge valves from the core flood tank vill be assured open by administrative control and pcsition indication la=ps on the engineered safeguards status panel.

Respective breakers for these valves shall be open and con-spicuously marked.

d.

One core flood tank pressure instru=entation channel and one core flood tank level instru=entation channel per tank shall be operable.

-*2 1555 202

7-V3A and CF-V3B shall are flood tank (CFT) vent v6 _

be closed and the breakers to the CFT vent valve motor operators shall be tagged open, except when adjusting core flood tank level and/or prest,ure.

3 3.1.3 Reactor Building Spray System and Reactor Building Ehergency Cooling System The following components must be operable:

Two reactor building spray pumps and their associated spray a.

nozzles headers and two reactor building emergency cooling fans and associated cooling units (one in each train).

b.

The sodium thiosulfate tank shall contain not less than 34,000 pounds of sodium thiosulfate and not more than 36,000 pounds of sodium thiosulfate. The sodium thiosulfate vill be stored at a nominal 30 veight percent solution with nominal 1 5 weight percent boric acid-sodium hydroxide buffer at a pH of approximately 9 to 10.

The sodium hydroxide tank shall contain not less than 16,000 pounds of sodium hydroxide and not more than 17,000 pounds of sodium hydroxide. The sodium hydroxide vill be stored at a nominal 20 veight percent solution.

All manual valves in the discharge lines of the sodium c.

thiosulfate and sodium hydroxide tanks shall be locked open.

3 3 1.h cooling Water systems Two nuclear service closed cycle cooling vater pumps must a.

be operable.

b.

Two nuclear service river water pumps must be operable.

Two decay heat closed cycle cooling water pumps must be c.

operable.

d.

Two decay heat river vnter pumps must be operable.

Two reactor building emergency cooling river water e.

pumps must be operable.

3315 Engineered Safeguards valves and Interlocks Associated with the Systems in Specifications 3 3.1.1, 3 3.1.2, 3 3.1.3, 3 3.1.h are operable.

332 Maintenance shall be allowed during power operation on any component (s) in the makeup and purification, decay beat, RB emergency cooling water, RB spray, CFT pressure instrumentation, CFT level instrumentation, BWST level instrumentation, or cooling

~

vater systems which will not remove more than one train of each system from service. Components shall not be removed from service so that the affected system train is inoperable for more than 48 consecutive hours.

If the system is not restored to meet the requirements of Specifications 3 31 vithin 48 hours5.555556e-4 days <br />0.0133 hours <br />7.936508e-5 weeks <br />1.8264e-5 months <br />, the reactor shall be placed in a cold shutdown condition within twelve hours.

1555 203 3-22 Anendment No.19

k.5 2 EMERGENCY CORE COOLING SYSTEM Applicability Applies to periodic testing requirement for emergency core cooling systems.

Objective To verify that the emergency core cooling syste=s are operable.

Specification 4.5 2.1 High Pressure Injection.

During each refueling interval, system pumps and system high point l

a.

vents shall be vented, and a system test shall be conducted to demonstrate that the system is operable.

After a satisfactory test of the Emergency loading sequence (b.5 1),

the M. U. Pump and its required supporting auxiliaries will be started manually by the operator and a test signal vill be applied to the High Pressure injection valves to demonstrate actuation of the high pressure injection system for emergency core cooling operation.

b.

The test vill be considered satisfactory if the valves have completed their travel and the M.U. pumps are running as evidenced by the control board component operating lights, and either the station computer or pressure / flow indication.

h.5 2.2 Iov Pressure Injection During each refueling period, system pu=ps and high point vents l

a.

shall be vented, and a system test shall be conducted to demonstrate I that the system is operable. The auxiliaries required for low pressure injection are all included in the emergency loading sequence specified in 4.5 1.

b.

The test will be considered satisfactory if the decay heat pumps listed in 4.51.lb have been successfully started and the decay heat injection valves and the decay beat supply valves have completed their travel as evidenced by the control board component operating lights, and either the station computer or pressure / flow indication.

h.5 2.3 Core Flooding a.

During each refueling period, a system test shall be conducted to demonstrate proper operation of the system. During depressurization of the Reactor Coolant System, verification shall be made that the check and isolation valves in the core flooding tank discharge lines operate properly, b.

The test vill be considered satisfactory if control board indication of core flood tank level verifies that all valves have opened.

u-u1 1555 204 Amendment No. 19

h.5 2.h component Tests At intervals not to exceed 3 months, the compc..ents required for a.

emergency core cooling vill be tested.

b.

The test vill be considered satisfactory if the pu=ps and fans have been successfully started and the valves have completed their travel as evidenced by the control board component operating lights, and either the station computer or pressure /flov indication.

Bases The emergency core cooling syste=s are the principal reactor safety features in the event of a loss of coolant accident. The removal of heat from the core provided by these syste=s is designed to li=it core da=r.ge.

The low pressure injection pu=ps are tested singularly for operability by opening the borated water storage tank outlet valves and the bypass valves in the borated vater storage tank fill line. This allows water to be pu= ped from the borated water storage tank through each of the injection lines and back to the tank.

With the reactor shutdown, the valves in each core flooding line are checked for operability by reducing the reactor coolant system pressure until the indicated level in the core flood tanks verify that the check and isolation valves have opened.

REFERENCE (1) ISAR, Section 6.

1555 205 k-k2

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