ML18017A853

Proposed Tech Specs Pages,Revising TS 3/4.9.4 to Allow Penetrations Which Provide Direct Access from Containment Atmosphere to Outside Atmosphere to Remain Open During Refueling Operations

ML18017A853
Person / Time
Site:	Harris
Issue date:	08/26/1999
From:	CAROLINA POWER & LIGHT CO.
To:
Shared Package
ML18017A852	List: ML18017A851 ML18017A853
References
NUDOCS 9908310235
Download: ML18017A853 (5)

Text

REFUELING OPERATIONS

,3/4.9. 4 CONTAINMENT BUILDING PENETRATIONS LIMITING CONDITION FOR OPERATION 3.9.4 The containment building penetrations shall be in the following status:

a. The equipment door closed and held in lace by a minimum of four bolts, copra l~ <4 l er qf

b. A minimum of one door in each airlock is closed, and Each penetration providing direct access from the containment atmosp e to the ts e atmosphere shall be either:

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1. ose y a manual or automatic isolation valve, blind flange or equivalent, or

2. Be capable of being closed by OPERABLE automatic normal containment purge and containment pre-entry purge makeup and exhaust isolation valves.

APPLICABILITY: During CORE ALTERATIONS or movement of ir radiated fuel within the containment.

ACTION:

With the requirements of the above specification not satisfied, immediately suspend all operations involving CORE ALTERATIONS or movement of i rradiated tuel in the containment building.

SURVEILLANCE REQUIREMENTS ra & ~ bii~8~ iso(~

4.9.4 Each of the above required containment building enetrations shall be determined to be either in its closed/isolated condition or capable of being closed by OPERABLE automatic normal containment purge and containment >l~K pre-entry purge makeup and exhaust isolation valves at least once per 7 days during CORE ALTERATIONS or movement of irrad' fuel in the containment building by: a'6k' el~

a. Verifying the penetrations are i ei closed/isolated a or pre mI~ c< d~(')so) eJ+

b. Testing the normal containment purge and containment pre-entry purge makeup and exhaust isolation valves per the applicable portions of Specifica'tion 4.6.3.2.

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3/4 9-5 Amendment No. 61

3/4.9 REFUELING OPERA IONS BASES 3/4.9. 1 BORON CONCENTRATION The limitations on reactivity conditions during REFUELING ensure that:

(1) the reactor will remain subcritical during CORE ALTERATIONS, and (2) a uniform boron concentration is maintained for reactivity control in the water volume having direct access to the reactor vessel. These limitations are consistent with the initial conditions assumed for the boron dilution incident in the safety analyses and are specified in the cycle-specific COLR. The boron concentration limit specified in the COLR ensures that a core K,<< of

< 0.95 is maintained during fuel handling operations. The administrative controls over the required valves during refueling operations precludes the ossibility of uncontrolled boron dilution of the filled portion of the RCS.

his action prevents flow to the RCS of unborated water by closing flow paths from sources of'nbor ated water.

3/4.9.2 INSTRUMENTATION The OPERABILITY of the Source Range Neutron Flux Monitors ensures that redundant monitoring capability is available to detect changes in the reactivity condition of the core.

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3/4.9.3 DECAY TIME - DELETED Q~

3/4.9. 4 CONTAINMENT BUILDING PENETRATIONS The requirements on containment building penetration closure and OPERABILITY ensure that a release of radioactive material within containment will be restricted from leakage to the environment. The OPERABILITY and closure restrictions are sufficient to restrict radioactive material release from a fuel element rupture based upon the lack of containment pressurization potential while in the REFUELING MODE.

/4.9.5 COMMUNICATIONS - DELETED Qi SHEARON HARRIS - UNIT 1 B 3/4 9-1 Amendment No. 61

Penetrations applicable to Technical Specification 3.9.4.b and 3.9.4.c may be opened provided the following administrative controls are in effect:

l. The breached penetration shall be capable of being closed within twenty minutes afler a fuel handling accident in containment.

2. An individual or individuals shall be designated and available at all times, capable of closing the breached penetration, and able to communicate directly with the Control Room.

3. The breached penetrations shall not be obstructed unless capability for rapid removal of obstructions is provided (such as quick disconnects for hoses).

4. For Air Locks, at least one door must be capable of being closed and secured.

These administrative controls assume that penetrations which provide direct access from the Reactor Containment Building to atmospheres other than the Reactor Auxiliary Building are limited to 706 square inches. Additionally, the driving force for established flow rates out of the Reactor Containment Building aAer Containment Ventilation Isolation is limited to 0.45 inwc.

Containment penetrations that provide direct access from containment atmosphere to outside atmosphere must be isolated, or capable of isolation via administrative controls, on at least one side of containment. Isolation may be achieved by an OPERABLE automatic isolation valve, or by a manual isolation valve, blind flange, or equivalent.

Equivalent isolation methods include use of a material that can provide a temporary, atmospheric pressure, ventilation barrier for the other containment penetrations during fuel movement.

REFUELING OPERATIONS 3/4.9. 4 CONTAINMENT BUILDING PENETRATIONS LIMITING CONDITION FOR OPERATION 3.9.4 The containment building penetrations shall be in the following status:

The equipment door closed and held in place by a minimum of four bolts,

b. A minimum of one door in each airlock is capable of being closed*,

and Each penetration providing direct access from the containment atmosphere to the outside atmosphere shall be either:

1. Be capable of being* closed by a manual or automatic isolation valve. blind flange or equivalent, or

2. Be capable of being closed by OPERABLE automatic normal containment purge and containment pre-entry purge makeup and exhaust isolation valves.

APPLICABILITY: During CORE ALTERATIONS or movement of irradiated fuel within the containment.

ACTION:

With the requirements of the above specification not satisfied. immediately suspend all operations involving CORE ALTERATIONS or movement of irradiated fuel in the containment building.

SURVEILLANCE REQUIREMENTS 4.9.4 Each of the above required containment building penetrations shall be determined to be either in its closed/isolated condition, capable of being closed/isolated*. or capable of being closed by OPERABLE automatic normal containment purge and containment pre-entry purge makeup and exhaust isolation valves at least once per 7 days during CORE ALTERATIONS or movement of irradiated fuel in the containment building by:

a. Verifying the penetrations are either closed/isolated or capable of being closed/isolated*, or

b. Testing the normal containment purge and containment pre-entry purge makeup and exhaust isolation valves per the applicable portions of Specification 4.6.3.2.

• Penetrations may be opened under administrative controls except for containment purge and exhaust penetrations.

SHEARON HARRIS - UNIT 1 3/4 9-5 Amendment No.

3/4.9 REFUELING OPE NS BASES 3/4.9.1 -BORON CONCENTRATION The. limitations on reactivity conditioos during REFUELING ensure that:

(1) the reactor will remain subcriticaol during CORE ALTERATIONS 'and (2) a uniform boron concentration's maintained for reactivity contro1 in the water volume having direct access to the reactor vessel. These limitations are consistent with the initial conditions assumed foi the boron dilution incident in the safety analyses and are specified in the cycle-specific COLR. The boron concentration limit specified in the COLR ensures that a core K of

< 0.95 is maintained during fuel handling operations. The administrative controlS over the reauir'ed valves during refueling ojerations precludes the Dossibi Iity of uncontro] led boron dilution of the fi'lied oorfion of the RCS.

This action prevents flow to the RCS of unborated water bp closing fiow paths from sources of unborated water .

3/4.9.2 INSTRUMENTATION The OPERABILITY of the Source Range Neuhroo Flux Monitors ensures that redundant monitoring capability is available to detect changes in the reactivity condition of the core.

3/4.9.3 DECAY TIME - DELETED 3/4.9. 4 CONTAINMENT BUILDING PENETRATIONS The requirements on containment building penetration closure and OPERABILITY ensure that a re ease of radioactive material within containment will be restricted from eakage to the environment. The OPERABILITY and closure res riotions are sufficient to restrict radioactive material release from a fue element rupture based uoon the lack of containment pressurization Dotential while in the REFUELING MODE. Penetrations applicable to Technical Specification 3.9.4.b and 3.9.4.c may be opened provided the following administr ative controls are in effect:

1. The breached penetration shall be capable of being closed within twenty minutes after a fuel handling accident in containment.

2. AD individual or individua1s shall be designated and available at all times, capable of closing the breaciied penetration, and able to communicate directly with the Control Room.

3. The breached penetrations shall not be obstructed unless capability for rapid removal of obstructions is provided (such as qu'ick disconnects for hoses).

4. For Air Locks, at least one door must be capable of being closed and secured.

These administrative controls assume that penetrations which provide direct access from the Reactor .Containment Building to atmospheres other than the Reactor Auxiliary Building are limited to 706 sauare 'inches . Additionally the drivinq force for established flow rates out of the. Reactor Containment Building atter Containment Ventilat on Isolation is limited to 0.45 inwc.

C on t ainm e n t penet ra t i o n s th a t p r o vide direct access fro m cootainment atmosphere to outside atmosphere must be isolated, or capable of iSolation via admin)strative controls on at least one side of containment. solation may be achieVed bV an OPERABLE autOmatic isolation valve, or by a m nuaal isolation valve, blind flange, or equivalent. Equivalent isolation metho s include use of a material that can P rovide a tern p orar v, atmos p.heric pr essure ventilation barrier for the other containment penetrations during fuel movement.

3/4.9.5 COMMUNICATIONS - DELETED SHEARON HARRIS - UNIT 1 Amendment No