ML031120091

TS Pages

ML031120091
Person / Time
Site:	Pilgrim
Issue date:	04/21/2003
From:	NRC/NRR/DLPM
To:
References
TAC MB6213
Download: ML031120091 (3)

Text

LIMITING CONDITION FOR OPERATION SURVEILLANCE REQUIREMENTS 3.10 CORE ALTERATIONS 4.10 CORE ALTERATIONS Applicability: Applicability:

Applies to the fuel handling and core Applies to the period testing of those reactivity limitations during refueling interlocks and instrumentation used and core alterations. during refueling and core alterations.

Obiective: Obiective:

To ensure that core reactivity is within To verify the operability of the capability of the control rods and to instrumentation and interlocks used in prevent criticality during refueling. refueling and core alterations.

Specification: Specification:

A. Refueling Interlocks A. Refueling Interlocks

1. During in-vessel fuel movement with 1. Prior to in-vessel fuel movement with equipment associated with the equipment associated with the interlocks the refueling equipment refueling equipment interlocks, the interlocks shall be operable with the interlocks shall be functionally tested.

reactor mode switch locked in the They shall be tested at weekly "Refuel" position. If one or more intervals thereafter until no longer required refueling equipment required.

interlocks are inoperable:

a. Suspend in-vessel fuel movement with equipment associated with the inoperable interlock(s) immediately.

OR

b. Insert a control rod withdrawal block AND verify all control rods are fully inserted.

2. When the reactor vessel head is 2. When the reactor vessel head is removed and any control rod is removed and any control rod is withdrawn the one-rod-out interlock withdrawn the one-rod-out interlock shall be operable with the reactor shall be functionally tested at weekly mode switch locked in the "Refuel" intervals. The functional test is not position. If the one-rod-out interlock required to be performed until 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> is inoperable: following withdrawing a control rod.

a. Suspend control rod withdrawal immediately.

AND

b. Initiate action to fully insert all control rods in core cells containing one or more fuel assemblies immediately.

Amendment No. 8, 199 3/4.1 0-1

LIMITING CONDITION FOR OPERATION SURVEILLANCE REQUIREMENTS 3.10 CORE ALTERATIONS (Cont) 4.10 CORE ALTERATIONS (Cont)

B. Core Monitoring B. Core Monitoring During core alterations when fuel is in the Prior to making any alterations to the core vessel two SRM's shall be operable, one the SRM's shall be functionally tested and in the core quadrant where fuel or control checked for neutron response. Thereafter, rods are being moved and one in an while required to be operable, the SRM's adjacent quadrant. For an SRM to be will be checked daily for response.

considered operable, the following conditions shall be satisfied:

1. The SRM shall be inserted to the normal operating level. (Use of special moveable, dunking type detectors during initial fuel loading and major core alterations in place of normal detectors is permissible as long as the detector is connected to the normal SRM circuit.)

Amendment No. 8, 199 3/4.1 0-1 a

LIMITING CONDITION FOR OPERATION SURVEILLANCE REQUIREMENTS 3.10 CORE ALTERATIONS (Cont) 4.10 CORE ALTERATIONS (Cont)

B. Core Monitorinc (Cont) B. Core Monitoring (Cont)

2. The SRM shall have a minimum of 3 Spiral Reload cps except as specified in 3 and 4 below. During spiral reload, SRM operability will be verified by using a portable external

3. Prior to spiral unloading, the SRM's source every 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> until the required shall have an initial count rate of 2 3 amount of fuel is loaded to maintain 3 cps.

cps. During spiral unloading, the As an alternative to the above, up to two count rate on the SRM's may drop fuel assemblies will be loaded in different below 3 cps. cells containing control blades around each SRM to obtain the required 3 cps.

4. During spiral reload, each control cell Until these assemblies have loaded, the shall have at least one assembly with cps requirement is not necessary.

a minimum exposure of 1000 MWD/ST.

C. Spent Fuel Pool Water Level C. Spent Fuel Pool Water Level Whenever irradiated fuel is stored in the Whenever irradiated fuel is stored in the spent spent fuel pool, the pool water level shall be fuel pool, the water level shall be recorded maintained at or above 33 feet. daily.

D. Multiple Control Rod Removal D. Multiple Control Rod Removal

1. Any number of control rods and/or 1. Within 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br /> prior to the start of removal control rod drive mechanisms may be of control rods and/or control rod drive removed from the reactor pressure mechanisms from the core and/or reactor vessel provided that at least the pressure vessel and at least once per 24 following requirements are satisfied until hours thereafter until all control rods and all control rods and control rod drive control rod drive mechanisms are mechanisms are reinstalled and all reinstalled and all control rods are fully control rods are fully inserted in the core. inserted in the core, verify that:

a. The reactor mode switch is operable a. The reactor mode switch is operable and and locked in the Refuel position locked in the Refuel position.

I except that the position indication may be bypassed, as required, for those control rods and/or control rod drive mechanisms to be removed, after the fuel assemblies have been removed as specified below.

Amendment No. 39, 41, 105, 199 314.1 0-2