ML20206R935

Proposed Tech Specs Re Refueling Equipment Interlocks Required Actions

ML20206R935
Person / Time
Site:	Grand Gulf, River Bend
Issue date:	01/12/1999
From:	ENTERGY OPERATIONS, INC.
To:
Shared Package
ML20206R932	List: ML20206R927 ML20206R935
References
NUDOCS 9901210342
Download: ML20206R935 (10)

Text

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Attachment 3 Mark-up of Affected Technical Specifications l and Bases )

Grand Gulf Nuclear Station l 1

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4 9901210342 990112 s.

PDR ADOCK 05000416 .

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l Refueling Equipment Interlocks 3.9.1 3.9 REFUELING OPERATIONS 3.9.1 Refueling Equipment Interlocks '

LCO 3.9.1 .The refueling equipment interlocks shall be OPERABLE.

APPLICABILITY: During in-vessel fuel movement with equipment associated with the interlocks.

ACTIONS  !

CONDITION REQUIRED ACTION COMPLETION TIME A. One or more required A.1 Suspend in-vessel Immediately refueling equipment fuel movement with interlocks inoperable, equipment associated  !

with the inoperable interlock (s). .

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~1nsuS 3.% i A SURVEILLANCE REQUIREMENTS SURVEILLANCE FREQUENCY SR 3.9.1.1 Perform CHANNEL FUNCTIONAL TEST on each of 7 days the following required refueling equipment interlock inputs:

a. All-rods-in,

b. Refuel platform position, and

c. Refuel platform main hoist, fuel loaded.

GRAND GULF 3.9-1 Amendment No. 120 t'

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l lNSERT 3.9-1 A L

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l A.2.1 Insert a control rod immediately -

l withdrawal block.

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A.2.2 Verify all control rods are fully immediately inserted in core cells r

containing one or more fuel assemblies.

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f^ - Refueling Equipment Interlocks B 3.9.1

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, BASES (continued)

' APPLICABILITY k .SJDE 5, a prompt reactivity excursion could cause fuel camage and subsequent release of radioactive material to the environment. The refueling equipment interlocks protect against' prompt reactivity excursions during MODE 5. -The

' interlocks are only required to be OPERABLE during in-vessel fuel movement with refueling equipment associated with the interlocks.

In MODES 1, 2, 3, and 4, the reactor pressure vessel head is l

on, and no fuel loading activities are possible. Therefore,

!- the refueling interlocks are not required to be OPERA 8LE in these MODES.

ACTIONS A.1 A2.1 anA 4 7 7 -

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With'one or more of the required refuelin equipment interlocks inomrable, the unit must be aced in a ;A3.9 -Je j  ;

l condition in witch the LC0 does not appl Op-vessel fuel l

movement with the affected refueling equipment must be immediately suspended. This action ensures that operations l

are not performed with equipment that would potentially not be blocked from unacceptable operations (e.g., loading fuel into a cell with a control rod withdrawn).. Suspension of L hA 3 I in-vessel fuel movement shall not preclude completion of i d 2.9-3 6  % movement of a component to a safe position.

SURVEILLANCE SR 3.9.1.1  ;

REQUIREMENTS , !

i Performance of a CHANNEL FUNCTIONAL TEST demonstrates each

! required refueling equipment interlock will function l

properly when a simulated or actyal signal indicative of a  ;

required condition is injected into the logic. The CHANNEL  ;

1 FUNCTIONAL TEST may be performed by any series of sequential, overlapping, or total channel steps so that the i entire channel is tested.  !

The 7 day Frequency is based on engineering judgment and is ,

considered adequate in view of other indications of  !

refueling interlocks and their associated input status that are available to unit operations personnel. l i

(continued) ,

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GRAND GULF B 3.9-3 Revision No. O i

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INSERT B 3.9-3A or the Surveillances are not needed. This can be performed by ensuring fuelassemblies are not moved in the reactor vessel or by ensuring that the control rods are inserted and can not be withdrawn.

Therefore, Required Action A.1 requires that INSERT B 3.9-3B Altemately, Required Actions A.2.1 and A.2.2 require that a control rod withdrawal block be  !

inserted and that all control rods subsequently verified to be fully inserted. Required Action A.2.1 ensures that no control rods can be withdrawn. This action ensures that conl cannot be inappropriately withdrawn because an electrical or hydraulic block to control rod withdrawal is in place. Required Action A.2.2 is performed after placing the rod withdrawal block ,

in effect and provides a verification that all rods in core cells containing one or more fuel l assemblies are fully inserted. The allowance to not verify that control rods associated with defueled cells are inserted is to allow control rods to be withdrawn in accordance w 3.10.6 while complying with these actions. This verification that all required control rods are inserted is in addition to the periodic verifications required by SR 3.9.3.1 and SR 3.10.6.2. Like Required Action A.1, Required Actions A.2.1 and A.2.2 ensure that unacceptable operations are blocked (e.g., loading fuel into a cell with the control rod withdrawn).

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.i Attachment 4 Mark-up of Affected Technical Specifications and Bases River Bend Station

Refueling Equipment Interlocks 3.9.1

, '3.9 REFUELING OPERATIONS

- 3.9.1 Refueling Equipment Interlocks LCO 3.9.I The refueling equipment interlocks shall be OPERABLE.

~ APPLICABILITY: During in-vessel fuel movement with equipment associated with the interlocks.

ACTIONS CONDITION REQUIRED ACTION COMPLETION TIME A. One or more required A.1 Suspend in-vessel Immediately refueling equipment fuel movement with interlocks inoperable. equipment associated with the inoperable interlock (s).

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SURVEILLANCE REQUIREMENTS j SURVEILLANCE FREQUENCY .

4 SR 3.9.1.1 Perfom CHANNEL FUNCTIONAL TEST on each of 7 days the following required refueling equipment interlock inputs:

a. All-rods-in,

b. Refuel platform position, and

c. Refuel platfom main hoist, fuel loaded. -

4 RIVER BEND 3.9-1 Amendment No. 81

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. i INSERT 3.9-1 A

- OR 1 A.2.1 Insert a control fod immediately {

withdrawal block.

- AND  :

f A.2.2 Verify all control rods are fully immediately l inserted in core cells j containing one or more fuel 1 assemblies.

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Refueling Equipment Intericcks

.- B 3.9.1 BASES (continued)

APPLICABILITY In MODE 5, a prompt reactivity excursion could cause fuel damage and subsequent release of radioactive material to the

. environment. The refueling equipment interlocks protect against prompt reactivity excursions during MODE 5. The interlocks are only required to be OPERA 8LE during in-vessel fuel movement with refueling equipment associated with the interlocks.

! In MODES I, 2, 3, and 4, the reactor pressure vessel head is on, and no fuel loading activities are possible. Therefore,

! the refueling interlocks are not required to be OPERA 8LE in these MODES.

t ACTIONS 1. A2.1. qA A2 _

With one or more of the required refueli interlocks inoperable, the unit must be equipment ed in a ,

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condition in which the LCD does not appl 4V-vesselfuel movement with the affected refueling equipment must be immediately suspended. This action ensures that operations are not performed with equipment that would potentially not be blocked from unacceptable operations (e.g., loading fuel 4 m into a cell with a control rod withdrawn). Suspension of h) in-vessel fuel movement shall not preclude completion of f (6281-Tnw % movement of a component to a safe position.

SURVEILLANCE SR 3.9.1.1 . l REQUIREMENTS Performance of a CHANNEL FUNCTIONAL TEST demonstrates each required refueling equipment interlock will function ,

properly when a simulated or actual signal indicative of a )

required condition is injected into the logic. The CHANNEL  ;

FUNCTIONAL TEST may be performed by any series of  !

sequential, overlapping, or total channel steps so that the entire channel is tested.

The 7 day Frequency is based on engineering judgment and is considered adequate in view of other indications of refuelinq interlocks and their associated input status that are avai'able to unit operations personnel.

(continued) l L RIVER BEND 8 3.9-3 Revision No. 0 l

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l INSERT B 3.9-3A or the Surveillances are not needed. This can be performed by ensuring fuel assemblies are not i moved in the reactor vessel or by ensuring that the control rods are inserted and can not be withdrawn.

l Therefore, Required Action A.1 requires that j 1

INSERT B 3.9-3B Altemately, Required Actions A.2.1 and A.2.2 require that a control rod withdrawal block be inserted and that all control rods subsequently verified to be fully inserted. Required Action A.2.1 ensures that no control rods can be withdrawn. This action ensures that control rods cannot be inappropriately withdrawn because an electrical or hydraulic block to control rod j withdrawalis in place. Required Action A.2.2 is performed after placing the rod withdrawal block in effect and provides a verification that all rods in core cells containing one or more fuel assemblies are fully inserted. The allowance to not verify that control rods associated with defueled cells are inserted is to allow control rods to be withdrawn in accordance with LCO 3.10.6 while complying with these actions. This verification that all required control rods are fully inserted is in addition to the periodic verifications required by SR 3.9.3.1 and SR 3.10.6.2. Like Required Action A.1, Required Actions A.2.1 and A.2.2 ensure that unacceptable operations are blocked (e.g., loading fuel into a cell with the control rod withdrawn).

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