Text

Tech Spec Pages for Amendments 242 and 223 Reactor Coolant System Pressure and Temperature Limits
	ML051940185
Person / Time
Site:	North Anna ; (NPF-004, NPF-007)
Issue date:	07/08/2005
From:	; NRC/NRR/DLPM
To:	;
	Honcharik M, NRR/DLPM, 301-415-1774
Shared Package
ML051860289	List: ML051940185;
References
	TAC MC3705, TAC MC3706
	Download: ML051940185 (9)
	v • d • e

RCS P/T Limits 3.4.3 3.4 REACTOR COOLANT SYSTEM (RCS) 3.4.3 RCS Pressure and Temperature (P/T) Limits LCO 3.4.3 RCS pressure, RCS temperature, and RCS heatup and cooldown rates shall be maintained within the limits specified in Figures 3.4.3-1 and 3.4.3-2 with:

I

a. A maximum heatup of 601F in any one hour. period;

b. A maximum cooldown of 1000F in any one hour period; and

c. A maximum temperature change of 100F in any one hour period during inservice hydrostatic and leak testing operations above the heatup and cooldown limit curves.

APPLICABILITY:

At all times.

ACTIONS CONDITION REQUIRED ACTION COMPLETION TIME A.- --

NOTE---------

A.1 Restore parameter(s) 30 minutes Required Action A.2 to within limits.

shall be completed whenever this AND Condition is entered.

A.2 Determine RCS is 72 hours8.333333e-4 days 0.02 hours 1.190476e-4 weeks 2.7396e-5 months acceptable for Requirements of LCO continued operation.

not met in MODEJ1, 2, 3, or 4.

B. Required Action and B.1 Be in MODE 3.

6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months associated Completion Time of Condition A AND not met.

B.2 Be in MODE 5 with RCS 36 hours4.166667e-4 days 0.01 hours 5.952381e-5 weeks 1.3698e-5 months pressure < 500 psig.

North Anna Units I and 2 3.4.3-1 Amendments 242/223

RCS P/T Limits 3.4.3 Material Property Basis Limiting ART:

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North Anna Units i and 2 Reactor Coolant System Heatup Limitations (Heatup Rates up to 60°F/hr),

Applicable for the first 50.3 EFPY for Unit 1, and 52.3 EFPY for Unit 2 (Including Margins for Instrumentation Errors)

North Anna Units 1 and 2 3.4.3-3 Amendments 242/223

RCS P/T Limits 3.4.3 Material Property Basis Limiting ART:

114-T, 218.5 deg. F 3/4-T, 195.6 deg. F 2500 -

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50 100 150 200 250 Wide Range Cold Leg Temperature (Deg. F) 300 350 Figure 3.4.3-2 (page 1 of 1)

North Anna Units 1 and 2 Reactor Coolant System Cooldown Limitations (Cooldown Rates up to 100°F/hr),

Applicable for the first 50.3 EFPY for Unit 1, and 52.3 EFPY for Unit 2 (Including Margins for Instrumentation Errors)

North Anna Units 1 and 2 3'.4.3-4 Amendments 242/223

RCS Loops-MODE 4 3.4.6 3.4 REACTOR COOLANT SYSTEM (RCS) 3.4.6 RCS Loops-MODE 4 LCO 3.4.6 Two loops consisting of any combination of RCS loops and residual heat removal (RHR) loops shall -be OPERABLE, and one loop shall be in operation.

- NOTE- - - --

1. All reactor coolant pumps (RCPs) and RHR pumps may be removed from operation for 5 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months per 8 hour9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months period provided:

a. No operations are permitted that would cause introduction into the RCS, coolant with boron concentration less than required to meet SDM of LCO 3.1.1; and

b. Core outlet temperature is-maintained at least 10'F below saturation temperature.

2. No RCP shall be started with c 2800F unless the secondary each steam generator (SG) is cold leg temperatures.

any RCS cold leg temperature side water temperature of

< 50F above each of the RCS I APPLICABILITY:

MODE 4.

ACTIONS CONDITION REQUIRED ACTION COMPLETION TIME A.

One required loop A.1 Initiate action to

-Immediately inoperable.

restore a second loop to OPERABLE status.

AND A.2 NOTE---------

Only required if RHR loop is OPERABLE.

Be in MODE 5.

24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months North Anna Units 1 and 2 3.4.6-1 Amendments 242/223

RCS Loops-MODE 5, Loops Filled 3.4.7 3.4 REACTOR COOLANT SYSTEM (RCS) 3.4.7 RCS Loops-MODE 5, Loops Filled LCO 3.4.7 One residual heat removal (RHR) loop shall be OPERABLE and in operation, and either:

a. One additional RHR loop shall be OPERABLE; or

b. The secondary side water level of one steam generator (SG) shall be 2 17%.

- - - - - - - - - - NOTE--

1. The RHR pump of the loop in operation may be removed from operation for < 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months per 8 hour9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months period provided:

a. No operations are permitted that would cause introduction into the RCS, coolant with boron concentration less than required to meet SDM of LCO 3.1.1; and

b. Core outlet temperature is maintained at least 10F below saturation temperature.

2. One required RHR loop may be inoperable for up to 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months for surveillance testing provided that the other RHR loop is OPERABLE and in operation.

3. No reactor coolant pump shall be started with one or more RCS cold leg temperatures < 2800F unless the secondary side water temperature of each SG is < 500F above each of the RCS cold leg temperatures.

4. All RHR loops may be removed from operation during planned heatup to MODE 4 when at least one RCS loop is in operation.

APPLICABILITY:

MODE 5 with RCS loops filled.

North Anna Units 1 and 2 3.4.7-1 Amendments 242/223

Pressurizer Safety Valves 3.4.10 3.4 REACTOR COOLANT SYSTEM (RCS) 3.4.10 Pressurizer Safety Valves LCO 3.4.10 APPLICABILITY:

Three pressurizer safety valves shall be OPERABLE with lift settings of 2485 psig, +2%./-3% average with no single valve outside *3%.

MODES 1, 2, and 3, MODE 4 with all RCS cold leg temperatures > 2800F.

I

-NOTE-The lift settings are not required to be within the LCO limits during MODES 3 and 4 for the purpose of setting the pressurizer safety valves under ambient (hot) conditions.

This exception is allowed for 54 hours6.25e-4 days 0.015 hours 8.928571e-5 weeks 2.0547e-5 months following entry into MODE 3 provided a preliminary cold setting was made prior to heatup.

ACTIONS CONDITION REQUIRED ACTION COMPLETION TIME A. One pressurizer safety A.1 Restore valve to 15 minutes valve Inoperable.

OPERABLE status.

B. Required Action and B.1 Be in MODE 3.

6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months associated Completion Time not met.

AND OR B.2 Be in MODE 4 with any 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months RCS cold leg Two or more temperatures < 2800F.

pressurizer safety valves inoperable.

I North Anna Units 1 and 2 3.4. 10-1 Amendments 242/223

LTOP System 3.4.12 3.4 REACTOR COOLANT SYSTEM (RCS) 3.4.12 Low Temperature Overpressure Protection (LTOP) System LCO 3.4.12 An LTOP System shall be OPERABLE with a maximum of one charging pump and one low head safety injection (LHSI) pump capable of injecting into the RCS and the accumulators isolated, with power removed from the isolation valve operators, and one of the following pressure relief capabilities:

a. Two power operated relief valves (PORVs) with lift setting allowable values of: _ _

1. < 540 psig when any RCS cold leg temperature <28 0'F; and

2.

375 psig when any RCS cold leg temperature-< 1800F.

b. The RCS depressurized and an RCS vent of > 2.07 square inches.

NOTES- - - - - - - - - - - - -

1. Two charging pumps may be made capable of injecting for

< 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months for pump swapping operations.

2. Accumulator isolation with power removed from the isolation valve operators is-only required when accumulator pressure is greater than the PORV lift setting.

I APPLICABILITY:

MODE MODE MODE 4 when 5,

6 when any RCS cold. leg temperature is

2800F, the reactor vessel head is on.

I ACTIONS CONDITION REQUIRED ACTION COMPLETION TIME A. Two LHSI pumps capable A.1 Initiate action to Immediately of injecting into the verify a maximum of RCS.

one LHSI pump is capable of injecting into the RCS.

North Anna Units I and 2 3.4.12-1 Amendments 242/223

LTOP System 3.4.12 ACTIONS CONDITION REQUIRED ACTION COMPLETION TIME B. Two or more charging B.1 Initiate action to Immediately pumps capable of verify a maximum of injecting into the one charging pump is RCS.

capable of injecting into the RCS.

C. ---

NOTE---------

C.1 Isolate affected Immediately Only applicable when accumulator.

accumulator pressure is greater than PORV AND lift setting.

_ __ ___ __ _ C.2 Remove power from 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months affected accumulator An accumulator not isolation valve isolated.

operators.

OR Power available to one or more accumulator isolation valve operators.

D. Required Action and D.1 Increase RCS cold leg 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months associated Completion temperature to > 2800F.

Time of Condition C not met.

OR D.2 Depressurize affected 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months accumulator to less than PORV lift setting.

E. One required PORY E.1 Restore required PORV 7 days inoperable in MODE 4.

to OPERABLE status.

F. One required PORV F.1 Restore required PORV 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months inoperable in MODE 5 to OPERABLE status.

or 6.

I North Anna Units 1 and 2 3.4. 12-2 Amendments 242/223

LTOP System 3.4.12 SURVEILLANCE REQUIREMENTS SURVEILLANCE FREQUENCY SR 3.4.12.4 Verify required RCS vent 2 2.07 square 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months for inches open.

unlocked open vent valve(s)

AND 31 days for other vent paths SR 3.4.12.5 Verify PORV block valve is open for each 72 hours8.333333e-4 days 0.02 hours 1.190476e-4 weeks 2.7396e-5 months required PORV and PORV keyswitch is in AUTO.

SR 3.4.12.6 Verify required PORV backup nitrogen supply 7 days pressure is within limit.

SR 3.4.12.7 ---------

NOTE--------------------

Not required to be met until 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months after decreasing RCS cold leg temperature to 5 280 0F.

l Perform a COT on each required PORV, 31 days excluding actuation.

SR 3.4.12.8 Perform CHANNEL CALIBRATION for edch 18 months required PORV actuation channel.

North Anna Units 1 and 2 3.4.12-4 Amendments 242/223

v t e Letter Sequence Other
TAC:MC3705, (Open) TAC:MC3706, (Open)
Initiation Request, Request Acceptance... Administration Questions Answers Results Withdrawal Other: ML051860255, ML051940185, ML052300621
MONTHYEAR2004-07-01 [Table View]

Person / Time
ML051940185
Site:	North Anna (NPF-004, NPF-007)
Issue date:	07/08/2005
From:	NRC/NRR/DLPM
To:
Honcharik M, NRR/DLPM, 301-415-1774
Shared Package
ML051860289	List: ML051940185
References
TAC MC3705, TAC MC3706
Download: ML051940185 (9)
v • d • e

ML051940185

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