ML20148K167

Proposed Tech Specs,Adding Shipping Cask Liners,Vol Reduction Equipment,Shipping Casks Not for Spent Fuel & Spent Fuel Assembly Nondestructive Test Equipment to Tech Spec 3.9.7

ML20148K167
Person / Time
Site:	Yankee Rowe
Issue date:	01/15/1988
From:	YANKEE ATOMIC ELECTRIC CO.
To:
Shared Package
ML20148G758	List: ML20148G751 ML20148K167
References
NUDOCS 8801270563
Download: ML20148K167 (2)

Text

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REFUELING OPERATIONS CRANE TRAVEL - SPENT FUEL PIT LIMITING CONDITION FOR OPERATION 3.9.7 Loads in excess of 900 pounds shall be prohibited from travel over the spent fuel pit except for the:

a. Spent. Fuel Pit Building roof hatches,

b. Spent fuel inspection stand.

-c. Fuel handling equipment,

d. Spent fuel racks,

e. Temporary gate, f.- Shielding panels, g.- Shipping cask liners,

h. Volume reduction equipment,

i. Shipping casks: 35 tons maximum gross weight - not for spent fuel, and J. Spent fuel assembly nondestructive test equipment.

APPLICABILITY: With fuel assemblies in the sper.t fuel pit.

ACTION With the requirements of the above specifications not satisfied, place the crane load in a safe condition. The provisions of Specification 3.0.3 are not applicable.

SURVEILLANCE REQUIREMENTS 4.9.7.1 Loads in excess of 900 pounds shall be prevented from traveling over the spent fuel pit by ad anistrative control, except that the:

a. Spent Fuel Pit Building hatches, the spent fuel inspection stand, the fuel i handling equipment, spent fuel racks, the temporary gate, the shielding panels, the spent fuel assembly nondestructive test equipment, the volume reduction equipment, the shipping cask liners, and the shipping casks (35 tons maximum gross weight - not for spent fuel) may travel over the spent fuel pit in accordance with approved written procedures;

b. The spent fuel inspection stand, the temporary gate, the shielding panels, the spent fuel assembly nondestructive test equipment and the cask hatch cover 3

shall be prevented from traveling over fuel assemblies in the spent fuel pit by administrative control. The volume reduction equipment, the shipping cask liners, and the shipping casks shall be prevented from traveling over fuel assemblies in the spent fuel pit by administrative control and by the steel framing at the southern edge of the SFP superstructure roof opening which is also at the southern end of the safo load path; and

c. Fuel handling equipment, when moved for maintenance, shall be prevented from traveling over fuel assemblies in the spent fuel pit by administrative control.

YANKEE ROWE 3/4 9-8 Amendment 3), $l, 57, 75, 93 ,

12 k p ,

V 1 I

8 REFUELING OPERATIONS l

BASES j

I 3/4.9.6 SHIELD TANK CAVITY MANIPULATOR CRANE OPERABILITY I l

The OPERABILITY requirements for the manipulator cranes ensure that: 1) the manipulator crane and universal handling tool will be used for movement of control {

rods and fuel assemblies, 2) each crane and tool has sufficient load capacity to i lift a control rod or fuel assembly, and 3) the core internals and pressure vessel '

are protected from excessive lifting force in the event they are inadvertently ,

engaged during lifting operations. l 3/4.9.7 CRANE TRAVEL - SPENT FUEL PIT The restriction on movement of loads in excess of the nominal weight of a fuel assembly over fuel assemblies in the spent fuel pit ensures that in the event this load is dropped (1) the activity release will be limited to that contained in a single fuel assembly, and (2) any possible distortion of the fuel in the storage tanks will not result in a critical array. This assumption is consistent with the activity release assumed in the accident analysis.

Handling of the present fuel pit building roof hatches for infrequent transfers of spent fuel racks by administrative control will assure safe handling of the roof hatches. The restriction of movement of the spent fuel inspection stand, the temporary gate, the shielding panels, the spent fuel assembly nondestructive test equipment, the cask hatch cover, the volume reduction equipment, the shipping cask liners, and the shipping casks over spent fuel ensures that these items cannot be dropped on spent fuel. Dropping any one of these items from its maximum height will not result in loss of integrity of the fuel pool floor. Handling of the fuel handling equipment for infrequent maintenance by administrative control will ensure the safe handling of any fuel handling components.

3/4.9.8 RESIDUAL HEAT REMOVAL AND COOLANT CIRCULATION The requirement that at least one residual heat removal (RHR) loop be in operation ensures that (1) sufficient cooling capacity is available to remove decay heat and maintain the water in the reactor pressure vessel below 1400F as required during the REFUELING MODE, and (2) sufficient coolant circulation is maintained through the reactor core to minimize the effect of a boron dilution incident and prevent boron stratification.

The requirement to have two RHR loops OPERABLE when there is less than 32 feet of water above the core ensures that a single failure of the operating RHR loop will not result in a complete loss of residual heat removal capability. With the reactor vessel head removed and 32 feet of water above the core a large heat sink is available for core cooling. Thus, in the event of a failure of the operating RHR loop, adequate time is provided to initiate emergency procedures to cool the Core.

YANKEE-ROWE B 3/4 9-2 Amendment No. 39, 66