ML19210A322
| ML19210A322 | |
| Person / Time | |
|---|---|
| Site: | Crane  |
| Issue date: | 08/23/1978 |
| From: | Reid R Office of Nuclear Reactor Regulation |
| To: | |
| Shared Package | |
| ML19210A319 | List: |
| References | |
| NUDOCS 7910290556 | |
| Download: ML19210A322 (5) | |
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- t NUCLEAR REGULATORY COMMisslON 3%
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.. j METROPOLITAN EDISON COMPANY JERSEY CENTRAL POWER AND LIGHT COMPANY I
PENNSYLVANI A ELECTRIC C0fiPANY DOCKET NO. 50-289 l
THREE MILE ISLAND NUCLEAR STATION, UNIT N0. 1 Af1END'1ENT TO FACILITY OPERATING LICENSE Amendment No. 43 License No. DPR-50 1.
The Nuclear Regulitory Conmission (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 January 27, 1978, as supplemented by letter dated July 17, 1978, 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 authorind 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 c' 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.
1488 179 7910290 Md s
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2.
Accordingly, the licence 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-50 is hereby amended to read as follows:
(2) Technical Specifications The Technical Spccifications contained in Appendice:
i A and B, as revised through Ar.endment No. 43, are hereby incorporated in the license.
The licensee shall operate the facility in accordance with the Technical Specifications.
3.
This license amendment is effective as of the date of its issuance.
FOR THE NUCLEAR REGULATORY COMMISSION
-ek Y.
1 Robert W. Reid, Chief Operating Reactors Branch #4 Division of Operating Reactors
Attachment:
Changes to the Technical Specifications Date of Issuance: August 23, 1978 1488 180 9
ATTACliMENT TO LICENSE AMENDMEIG NO. 43 FACILITY OPERATING LICE 1SE NO. DPR-Ei DOCKET NO. 50-289 Revise the Appendix A Technical Specifications as follows:
Remove Paaes Insert Pages 3-19 3-19 3-20 3-20 The changed areas on the revised pages are shown by marginal lines.
1488 181
3.2 MA}5UP A:iD PURIFILnTIO?i AND CIEMICA-ADDITIO!i SYSTO'S Arp3fechility Applies to the operational status of the makeup and purification and the chemical addition syste=s.
Objective To provide for adequate boration under all operating conditions to assure ability to brinC the reactor to a cold shutdown condition.
Specific:tien The reactor shall not be critical unless the followin6 conditions are met:
a 3 2.1 Two makeup and purificatien pumps are operable except as specified in 3.3.2.
3.2.2 A source of concentrated boric acid solution, in addition to the borated water stcrage tank, is available and operable.
This can be either:
a.
The boric e.cid mix tank containing at least the equivalent cf 800 ft3 of 8700 ppm boron as boric acid solutien with a tempera of at least 10 F above the crystallization temperature.
Systen piping and valves necessary to est6blish a ficv path frca the tank to the makeup and purificaticn system chall also be operable and shall have it least the same temperature require;...
as the boric acid =ix tank.
One associated boric acid pump shall be operable.
b.
A rec 3 aimed bdric acid storage tank centaining at leaat the equivalent of 600 ft3 or 6700 ppm boren as borie acid scluti:n 0
with a temperature of at least 10 F above the crystallizatica temperature.
System piping and valves necessary to establich c flow path from the tank to the makeup and purification cystem chall also be operable and shall have at leact the same temperc.u-:
requirement as the reclaimed boric acid tank.
One associated reclaimed boric acid pump shall be operable.
kcea The makeup and puri ficctier system cnd che dcal addi i n systems provide 1
control of thc reactor coolant boron concentration.
This is nonnal]y acecmplir.hed by uring, any of the three makeup and purification pumps ir seri c ;
vith n beric acid pump a:seciated with the boric acid mix tank or a reclu.a_C boric ncid pmp onsociated with a reclaimed boric acid storage tank.
1rae ali. trust e nd.md of 'ecration vill be the use of the ntkeup and puri fiest.a.
pu ps tC:i: ; e,u-tien directly frce the borated water storat;e tank. U) 1488 182 oP o W T9fa u
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3-19
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The quantity of boric acid in storage from either of the three above mentic.m.
sources is sufficient to borate the reactor coolant system to a one percent suberitical margin in the cold condition at ;he Vorst time in core life vi,h a stuck control rod assembly.
liinimum volumes (including a 10 percent safet, factor) of 800 ft3 of 8700 ppm boron as concentrated beric acid solutica in the boric acid mix tank or in a reclai=ed boric acid storage ter.k or 26,500 gallons of 2270 pp:a bcron as boric acid solution in the borated water stor2r e z
tank (3) vill each catisfy this requirer.ent.
Tne specification assures that./.
least two cf these supplies are available whenever the reactor is critical e-that a single failure vill not prevent toration to a co3d condition.
The minimum valumes of boric acid solution given include the boren necessary to account for xencn decay.
The primary method of adding bcron to the reactor coolant system is to pump the concentrated boric acid solution (8700 ppa boren, mininum) into the makeup tank using either the 10 sp; boric acid pumps or the 30 gpm reclaimed ber_c acid pumps.
Using only one of the two 10 gpm boric acid pu=ps, the req ire:'
volume can be injected in less than ten hours.
The alternate method of ailit M.
is to inject boric acid frca the borated vater storage tank using the makeup and purification pumps.
The required 26,500 gallons of boric acid can be injected in less than three and one half hours using only cne of the makeup I
and purification pumps.
Concentration of boron in the boric acid mix tank or a reclaimed boric ac2d storage tank =ay be higher than the concentration which vculd crystalline at ambient conditions.
For this reason, t'.e boric acid mix tank is proviced c:
an immersion electric heating element and the reclaited beric acid tanks :.re provided with low pressure steam heating jackets to maintain the temperature of their contents well above (100 F or more) the crystalli zation tenperattac of the boric acid solution contained in them.
Both types of heaters art controlled by temperature sensors i==ersed in the solution contained in t'.e tanks. 'Further, all piping, pu=ps and valves associated with the borie s.cid mix tank and the reclaimed boric acid storage tanks to transport beric acid so3ution from them to the cakeup and purification system are provided with redundant electrical heat tracing to ensu e that the beric acid solutden vill be maintained 100 F or more above its crystal 11:atien temperature.
Tne elect::ct.
heat tracinC is controlled by the temperature of the exteran1 surfaces of the piping systems.
Once in the me.keup and purification system, the boric acid so:'ution is sufficiently well n:ixed and diluted so that normal system terpe: e-c.
assure boric acid solubility.
"WP!pilh References D
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