ML20216E210

Proposed Tech Specs,Modifying Defueled TS 3.1.3 to Allow Util to Continue W/Implementation of Ynps Decommissioning Plan Which Has Been Incorporated Into Ynps FSAR

ML20216E210
Person / Time
Site:	Yankee Rowe
Issue date:	09/05/1997
From:	YANKEE ATOMIC ELECTRIC CO.
To:
Shared Package
ML20216E178	List: ML20216E172 ML20216E210
References
NUDOCS 9709100112
Download: ML20216E210 (6)

Text

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ATTACIIMENT B REVISED DEFUELED TECIINICAL SPECIFICATION AND BASIS PAGES 9709100112 970905 R

ADOCK 050000 9

9.

3/4.1 SPENT FUrt PIT WATER [fVit LlHITING CONDITION FOR OPERAil0N 3.1.1 At least 14 feet of water shall be maintained over the top of irradiated fuel assemblies seated in the storage racks.

3.1.2 At least 5 feet of water shall be maintained over the top of irradiated fuel assemblies while the fuel assemblies are not seated in the storage racks.

3.1.3 Irradiated fuel assemblies may be transported in or out of the spent fuel pit, without the minimum 5 feet of water over the top of the irradiated fuel assemblics, when they are transported within a shipping and/or transfer cask.

APPilCABillTY?

Whenever irradiated fuel assemblies are in the spent fuel pit.

ACTION:

With the requirements of the specification not satisfied. place irradiated components in a safe condition and suspend fuel handling operations within'the spent fuel pit and crane operations with. loads over the spent fuel pit.

Restore water level to within its limit within 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br />.

SURVEILLANCE REQUIREMENTS 4.1.1 The water level in the spent fuel pit shall be determined to be at least its minimum required depth at least once per 7 days when irradiated fuel assemblies are in the spent fuel pit'.

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YANKEE ROWE 3/4-2 l

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l 3/4.7 CRANf TRAVfL SPfNT FUft Pli LIMITING COND1110N FOR OPERA 110N 3.2 Loads in excess of 900 pounds shall be prohibited from travel over the spent fuel Dit except for thet a.

$ pent fuel Storage Building roof hatches, b.

Spent fuel inspection stand, c.

fuel handling equipment, I

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Spent fuel racks.

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Cask components and associated lif ting devices, j

f.

Shipping and/or transfer casks:

80 tons maximum gross weight on Yard Area Crane, 9

Shipping cask liners, h.

Volume reduction equipment, 1.

Cask set down pad, and l

j.

Spent fuel assembly nondestructive test equipment, i

APPilCABillTY:

With fuel assemblies in the Spent fuel Pit, 3.C11.Q11, With the requirements of the above specifications not satisfied.

l place the crane load in a safe condition.

SURVEILLANCE REQUIREMENTS l

4.2.1 Loads in excess of 900 pounds shall be prevented from traveling over the spent f uel pit by administrative control, except that the a.

Spent fuel Storage Building roof hatches, spent fuel inspection stand, fuel handling equipment, spent fuel racks, spent fuel assembly nondestructive test equipment, cask set down pad, shipping cask liners, volume reduction equipment, cask components and associated lifting devices, j

.and shipping and/or transfer casks may travel over the l

spent fuel pit in accordance with approved written i

procedures:

l YANKEE ROWE 3/4-3

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3/4,1 SPtNT Fl1Il Pli WATill trvrt BASl5 The restriction of 14 feet of water cover for irradiated fuel assemblies seated in storage racks ensures that sufficient water depth is available to rtmove 98% of the approximately 30% iodine gap activity released from the rupture of an irradiated fuel assembly.

The minimum water depth is consistent with the assumptions of the accident analysis.

The restriction of S feet of water cover for irradiated fuel assemblies not seated in the storage racks ensures that the exposure to personnel in the spent fuel pit area during fuel movements will,be maintained ALARA.

When spent fuel is transported in or out of the spent fuel pit within a l

shipping and/or transfer cask, shielding for personnel exposure is provided by the cask system.

The cask system ensures that exposure to i

personnel will be maintained ALARA.

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i YANKEE ROWE B3/4-3

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4 3/4.2 CRANI TRAVft SPINT filf t P[T BASES 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 racks will not result in a critical array.

This assumption is consistent with the activity release assumed in the accident analysis.

Handling of the present Spent fuel Storage Building roof hatches under administrative control will assure safe handling of the roof hatches.

The restriction of movement of the spent fuel inspection stand, the l

spent fuel assembly nondestructive test equipment, the cask hatch cover.

the volume reduction equipment and the shipping cask liners over spent l

fuel ensures that these items cannot be dropped on spent fuel.

Dropping 4

any one of these items from its maximum height will not result in loss of integrity of the spent fuel pit floor. Handling of the fuel handling equipment for infrequent maintenance under administrative control will ensure the safe handling of any fuel handling components.

l The use of a single failure proof crane provides assurance that a credible single failure will not result in the shipping and/or transfer cask, the cask set down pad, the cask hatch cover, and the cask components and associated lifting devices having an adverse effect on the spent fuel pit or the irradiated fuel in the spent fuel pit.

The restriction on movement of the shipping and/or transfer cask, the cask set-down pad, the cask hatch cover, and the cask components and lifting devices further ensures that these items cannot be dropped on spent fuel in the spent fuel pit storage racks.

The use of a single failure proof crane ensures that the cask hatch cover and the cask components and associated lifting devices, which are permitted over the spent fuel in the cask, cannot be dropped on the spent fuel, The safe load path is

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established to support the defense in depth approach to safety concerning heavy loads over the spent fuel pit.

Deviations from or changes to the safe load path shall be performed in accordance with approved written procedures which have been approved by PORC.

YANKEE-ROWE B3/4 4

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3/4.? CRANF TRAVFl

$ PINT Fllft PIT SURVEILLANCC RLOUIREMENTS (Continued) j b.

The volume reduction equipment, the spent fuel inspection I

stand, and the spent fuel assembly nondestructive test equipment shall be prevented _from traveling over fuel assemblies in the spent fuel pit by administrative control.

The volume reduction equipment (when transported by the Yard Area Crane), the shipping cask liners, the cask set down pad, and the shipping and/or transfer casks shall be prevented from traveling over fuel assemblies in the spent fuel pit by administrative control and by the Yard Area Crane travel limit switch, which prevent movement of a

2 these loads beyond the southern end of the safe load pcth.

The cask hatch cover and the cask components and associated lifting devices shall be prevented from traveling over 4

spent fuel assemblies stored in the spent fuel pit by administrative control and by the Yard Area Crane travel limit switch, except that the cask hatch cover and the cask components and associated lifting devices may be allowed over the spent fuel assemblies in the shipping and/or transfer cask when used in conjunction with cask operations; 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.

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