ML20064L619

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Proposed Tech Specs Reflecting New LTOP Controls Using Variable LTOP Sys & Addition of Requirement for Operable High Pressure Safety Injection Pump Handswitch
ML20064L619
Person / Time
Site: Calvert Cliffs  Constellation icon.png
Issue date: 03/17/1994
From:
BALTIMORE GAS & ELECTRIC CO.
To:
Shared Package
ML20064L606 List:
References
NUDOCS 9403250135
Download: ML20064L619 (9)
v • d • e


Text

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NITACllMENT (1)

UNIT 1 TECIINICAL SPECIFICATION REVISED MARKED UP PAGES l

1 I

9403250135 940317 3 PDR pon P

ADOCK05000317]i

t INSERT A (for Technical Specification 3.4.3 Actions)

a. If one or both PORV(s) has excessive seat leakage, within 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> close the associated block valvc(s) and ruaintain power to the block valve (s).
b. With one PORV inoperable due to causes other than excessive PORV seat leakage, within 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> either restore the PORV to OPERABLE status or close the associated block valve and remove power from the block valve; restore the PORV to OPERABLE status within the following 5 days or be in HOT STANDBY within the next E hours and at or below 365'F within the following M hours.
c. With both PORVs inoperable due to causes other than excessive PORV seat leakace. within I hour either restore one PORV to OPERABLE status or close the associated block valve and remove power from the block valve: restore one PORV to OPERABLE status within the followinc 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> or be in HOT STANDBY within the next 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> and at or below 365'Fwithin the followinc 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />.
d. With one or both block valve (s) inoperable, within I hour restore the block valve (s) to OPERABLE status or place its associated PORV(s)in override closed. Restore at least one '

block valve to OPERABLE status within the next 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> if both block valves are inoperable: restore any remainine inoperable block valve to OPERABLE status within the followine 5 day; otherwise, be in at least HOT STANDBY within the next R hours and at or below 365

  • F within the following M hours.

t

- - - - - -, ~. - - , ,

INSERT H (finr Technical Specification 3/4.43)

Above 365'E At or below 365'IMpecification 3/4.4.9.3 annlics  :

l l

h

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I I

~.,,._ , _ - , . - . . - - - -

r , , . . , ,

3/4.4 REACTOR COOLANT SYSTEM 3/4.4.9 PRESSURE / TEMPERATURE LIMITS Overpressure Protection Systems LIMITING CONDITION FOR OPERATION 3.4.9.3 The following overpressure protection requirements shall be met:

a. One of the following three Overpressure Protection Systems shall be in place: -
1. Two power ..r ated relief valves (PORVs) with a setpoint t~.cc the curve in Figure 3.4.9-3*f~iIr, ShuwesoW
2. A single PORY with a trip setpoint below the curve in Figure 3.4.9-3Mnd a Reactor Coo ant _SyitJmysnta t I.3 square incMt, or wN4 ys oas aAle@ b'och $4c.oPN ,
3. A Reactor Coolant System (RCS) vent 12.6 square inches.
b. Two high pressure safety injection DIPSI) pump ' shall be disabled by either removing (racking out) their motor circuit breakers from the electrical power supply circuit, or by locking shut their discharge valves.
c. The HPSI loop motor operated valves (MOVs)' shall be prevented from automatically aligning HPSI pump flow to the RCS by placing their hand switches in pull-to-override.
d. No more than one OPERABLE high pressure safety injection pump with suction aligned to the Refueling Water Tank may be used to ,

inject flow into the RCS and when used, it must be under manual  !

control and one of the following restrictions shall apply:

1. The total high prer* + safety injection flow shall be limited to 5 210 gp. 4 l
2. A Reactor Coolant System vent of a 2.6 square inches shall exist.
e. When not in use, the above OPERABLE high pressure safety  !

injection pump shall have its handswitch in pull-to-lock. '

APPLICABILITY: When the RCS temperature is 5 365*F and the RCS is vented I to < 8 square inches.  !

When on snutdown cooling. *he PORV trip setpoint shall be 5 429 psia. l EXCEPT wnen required for testing.

CALVERT CLIFFS - UNIT 1 3/4 4-32 Amencment :4o. MY .

3/4:4 REACTOR COOLANT SYSTEM LIMITING CONDITION FOR OPERATION (Continued)

ACTION: ,W n bf.5 N

a. With one PORY inoperable? either restore the inoperable PORY to OPERABLE status within 5 days or depressurize and vent the RCS through a 1 1.3 square inch vent (s) within the next 48 hours5.555556e-4 days <br />0.0133 hours <br />7.936508e-5 weeks <br />1.8264e-5 months <br />; D maintain the RCS in a vented condition until both PORVs have been 948 7d56C0 @ restored to OPERABLE status.

g With both PORVs inoperable, depressurize and vent the RCS through a 2 2.6 square inch vent (s) within 48 hours5.555556e-4 days <br />0.0133 hours <br />7.936508e-5 weeks <br />1.8264e-5 months <br />; maintain the RCS in a vented condition until either one OPERABLE PORY and a vent of 11.3 square inches has been established or both PORVs have been restored to OPERABLE status.

't" r t" eoev ac8 *< > e t-GB mitigate 1 t" a RCS t

pressuret"transient, a Special Report s prepared and submitted to the Commission pursuant to Specification 6.9.2 within 30 days. The report shall describe the circumstances initiating the transient, the effect of the ,

PORVs or vent (s) on the transient and any corrective action  ;

necessary to prevent recurrence.

h With less than two HPSI pumps' disabled, place at least two HPSI pump handswitches in pull-to-lock within fifteen minutes and _- _ 1 disable two HPSI pumps within the next four hours.

  • With one or more HPSI loop MOVs' not prevented from automatically p I aligning a HPSI pump to the RCS, imediately place the MOV l handswitch in pull-to-override, or shut and disable the affected MOV or isolate the affected HPSI header flowpath within four hours, and implement the ACTION requirements of Specifications 3.1.2.1, 3.1.2.3, and 3.5.3, as applicable.

l With HPSI flow exceeding 210 gpm while suction is aligned to the l RWT and an RCS vent of < 2.6 square inches exists, j

1. Imediately take action to reduce flow to less than or equal to 210 gpm. l ,
2. Verify the excessive flow condition did not raise pressure l above the maximum allow ble pressure for the given RCS l temperature on Figure 3.4.9-1 or Figure 3.4.9-2. j i

l i

EXCEPT wnen recuired for testing.

CALVERT CLIFFS - UNIT 1 3/4 4-33 AmencmentNo.y)[

3/4.4 REACTOR COOLANT SYSTEM BASES limit includes allowances for instrumentation uncertainty, charging pump flow addition and RCS expansion following loss of decay heat removal. The HPSI flow is injected through only one HPSI loop MOV to limit  !

instrumentation uncertainty. No more than one charging pump (44 gpm) is allowed to operate during the HPSI mass addition.

Three 100% capacity HPSI pumps are installed at Calvert Cliffs. Procedures will require that two of the three HPSI pumps be disabled (breakers racked out) at RCS temperatures less than or equal to 365'F and that the remaining l HPSI pump handswitch be placed in pull-to-lock. Additionally, the HPSI pump nonnally in pull-to-lock shall be throttled to less than or equal to 210 gpm when used to add mass to the RCS. Exceptions are provided for ECCS l testing and for response to LOCAs.

To provide single failure protection against a HPSI pump mass addition transient when in MPT enable, the HPSI loop MOV handswitches must be placed in pull-to-overridc so the valves do not automatically actuate upon receipt of a SIAS signal. Alternative actions, described in the ACTION statement, are to disable the affected MOV (by racking out its motor circuit breaker or equivalent), or to isolate the affected HPSI header. Examples of HPSI header isolation actions include; (1) de-energizing and tagging shut the ..

HPSI header isolation valves; (2) locking shut and tagging all three HPSI .

pump discharge valves; and (3) disabling all three HPSI pumps.  !

RCS temperature, as used in the applicability statement, is determined as follows: (1) with the RCPs running, the RCS cold leg temperature is the

' appropriate indication (2) with the Shutdown Cooling System in ope ration, 1 O the shutdown cooling temperature indication is appropriate, (3) if neither l the RCPs or shutdown cooling is in operation, the core exit thermocouples '

d// are the appropriate indicators of RCS temperature.

MM /4.4.10 STRUCTURAL INTEGRITY The inspection programs for the ASME Code Class 1, 2, and 3 components  !

ensure that the structural integrity of these components will be maintained at an acceptable level throughout the life o? the plant. To the extent -

applicable, the inspection program for these components is in compliance with Section XI of the ASME Boiler and Pressure Vessel Code.

l CALVERT CLIFFS - UNIT 1 3 3/4 4-10 Amencment No. 2SF

4 NITAC11 MENT (2)

UNIT 2 TECIINICAL SPECIFICATION REVISED MARKED UP PAGES y

3/4:4 REACTOR C00 TANT SYSTEM 3/4.4.9 PRESSURE / TEMPERATURE LIMITS Overoressure Protection S_ystems LIMITING CONDITION FOR OPERATION 3.4.9.3 The following overpressure protection requirements shall be met:

a. One of the following three overpressure protection systems shall '

be in place:

1. Two power-operated p11alyalres-4BORVs-)-with-Mif_t setting of 5 430 psiat or f raeciakd dect,4hes <pJe

' W11.ih

2. A single PORV with a lift setting of 5 430 psiafand a q,3 ,,c;g.,p Reactor Coolant System vent of t 1.3 square inches, o y,cu pe,
3. A Reactor Coolant System (RCS) vent t 2.6 square inche .
b. Two high pressure safety injection (HPSI) pumps' shall be disabled by either removing (racking out) their motor circuit breakers from the electrical power supply circuit, or by locking shut their discharge valves.
c. The HPSI loop motor operated valves (MOVs)# shall be prevented from automatically aligning HPSI pump flow to the RCS by placing their handswitches in pull-to-override.
d. No more than one OPERABLE high pressure safety injection pump with suction aligned to the Refueling Water Tank may be used to inject flow into the RCS and when used, it must be under manual control and one of the following restrictions shall apply:
1. The total high pressure safety injection flow shall be limited to 5 210 gpm OR
2. A Reactor Coolant System vent of 2 2.6 square inches shall exist.
e. When not in use, the above OPERABLE HPSI pump shall have its handswitch in pull-to-lock.

APPLICABILITY: When the RCS temperature is 5 305'F and the RCS is vented to < 8 square inches.  ;

l Except when required for testing. l CALVERT CLIFFS - UNIT 2 3/4 4-32 Amendment No. /,1[2/

p- ,

3/4;4 REACTOR COOLANT SYSTEM LIMITING CONDITION FOR OPERATION (Continued) _

3. If a pressure limit was exceeded, take action in accordance with Specification 3.4.9.1.

The provisions of Specification 3.0.4 are not applicable.

SURVEILLANCE REQUIREMENTS 4.4.9.3.1 Each PORY shall be demonstrated OPERABLE by:

a. Performance of 4 CHANNEL FUNCTIONAL TEST on the PORY actuation channel, but excluding valve operation, within 31 days prior to entering a condition in which the PORY is required OPERABLE and at least once per 31 days thereafter when the PORV is required OPERABLE.
b. Performance of a CHANNEL CALIBRATION on the PORV actuation channel at least once r 18 months.

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c. ting) valve ~ is open at least once per Verifying 72 the PORY hours when the P fRTTs being used for overpressure protection.
d. Testing in accordance with the inservice test requirements pursuant to Specification 4.0.5.

4.4.9.3.2 The RCS vent (s) shall be verified to be open at least once per 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br />

  • when the vent (s) is being used for overpressure protection.

4.4.9.3.3 All high pressure safety injection pumps, except the above OPERABLE pump, shall be demonstrated inoperable at least once per 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> by verifying that the motor circuit breakers have been removed from their electrical power supply circuits or by verifying their discharge valves are locked shut. The automatic opening feature of the high pressure safety injection loop MOVs shall be verified disabled at least once per 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br />.

The above OPERA 8LE pump shall be verified to have its handswitch in pull-to-lock at least once per 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br />.

i Except when the vent pathway is locked, sealed, or otherwise secured

^

in the open position, then verify these vent pathways open at least once per 31 days.

CALVERT CLIFFS - UNIT 2 3/4 4-34 Amendment No. I J P/

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