Text

Amend 71 to License DPR-67,permitting Continued Operation at Rated Thermal Power for Specified Time Following Dropped Control Element Assembly.Action Statements for Tech Spec 3.1.3.1 Reformulated
	ML17216A406
Person / Time
Site:	Saint Lucie
Issue date:	01/15/1986
From:	Thadani A; Office of Nuclear Reactor Regulation
To:	; Florida Power & Light Co
Shared Package
ML17216A407	List: ML17216A406; ML17216A408;
References
	DPR-67-A-071 NUDOCS 8601230541
	Download: ML17216A406 (12)
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t UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D. C. 20555 FLORIDA POWER 8( LIGHT COMPANY DOCKET NO. 50-335 ST.

LUCIE PLANT UNIT NO; 1

AMENDMENT TO FACILITY OPERATING LICENSE Amendment No.

71 License No.

DPR-67 1.

The Nuclear Regulatory Commission (the Commission) has found that:

~ A.

B.

C.

D.

E.

The application for amendment by Florida Power 8 Light Company, (the licensee) dated July 19, 1985, complies with the standards and requirements of the Atomic Energy Act of 1954, as amended (the Act) and the Commission's.rules and regulations set forth in 10 CFR Chapter I; The facility will operate in conformity with the application, the provisions of the Act, and the rules and regulations of the Commission; There is reasonable assurance (i) that the activities authorized by this amendment can be conducted without endangering the health and safety of the public, and (ii) that such activities will be conducted in compliance with the Commission's regulations; The issuance of this amendment will not be inimical to the comon defense and security or to the health and safety of the public; and The issuance of this amendment is in accordance with 10 CFR Part 51 of the Commission's regulations and all applicable requirements have been satisfied.

8601230541 860ii5 PDR ADOCK 05000335 PDR P

2.

Accordingly, Facility Operating License No.

DPR-67 is amended by changes to the Technical Specifications as indicated in the attachment to this license amendment, and by amending paragraph 2.C.(2) to read as follows:

(2)

Technical S ecifications The Technical Specifications contained in Appendices A and 8, as revised through Amendment No. 7>, are hereby incorporated in the license.

The licensee shall operate the facility in accordance with the Technical Specifications.

3.

This license amendment is effective as of the date of its issuance.

FOR TK NUCLEAR REGULATORY COMMISSION

Attachment:

Changes to the Technical Specifications Asho C. Thadani, Director PWR roject Directorate 88 Division of PWR Licensing-8 Date of Issuance:

January 15, 1986

ATTACHMENT TO LICENSE AMENDMENT NO. 71 TO FACILITY OPERATING LICENSE NO. DPR-67 DOCKET NO. 50-335 Replace the following pages of the Appendix "A" Technical Specifications with the enclosed pages.

The revised pages are identified by amendment number and contain vertical lines indicating the area of change.

The corresponding overleaf pages are also provided to maintain document completeness.

Remove Pa es 3/4 1-20 3/4 1-21 3/4 1-22 3/4 1-23 8 3/4 1-3 B 3/4 1-4 B 3/4 1-5 Insert Pa es 3/4 1-20 3/4 1-21 3/4 1-22 3/4 1-23 B 3/4 1-3 B 3/4 1-4 B 3/4 1-5 (repositioned)

REACTIVITY CONTROL SYSTEMS SURVEILLANCE RE UIREMENTS Continued 2.

Verifying the water level in each water source, and 3.

Verifying the boric acid makeup tank solution temperature.

b.

At least once per 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months by verifying the RWT temperature.

ST.

LUCIE - UNIT 1 3/4 1-19

REACTIVITY CONTROL SYSTEMS 3 4.1.3 MOVABLE CONTROL ASSEMBLIES FULL LENGTH CEA POSITION LIMITING CONDITION FOR OPERATION 3.1.3.1 The CEA Block Circuit and all full length (shutdown and regulating)

CEAs shall be OPERABLE with each CEA of a given group positioned within 7.5 inches (indicated position) of all other CEAs in its group.

APPLICABILITY:

MODES 1* and 2*.

ACTION:

a.

With one or more full length CEAs inoperable due to being immovable as a result of excessive friction or mechanical interference or known to be untrippable, determine that the SHUTDOWN MARGIN require-ment of Specification 3.1.1.1 is satisfied within 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months and be in HOT STANDBY within 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months .

b.

With the CEA Block Circuit inoperable, within 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months either:

1.

With one CEA position indicator per group inoperable, take action per Specification 3.1.3.3, or 2.

With the group overlap and/or sequencing interlocks inoper-able, maintain CEAs in groups 3, 4, 5 and 6 fully withdrawn and withdraw the CEAs in group 7 to less than 5X insertion and place and maintain the CEA drive system mode switch in either the "Manual" or "Off" position, or 3.

Be in at least HOT STANDBY.

c ~

d.

With one full length CEA inoperable due to causes other than addressed by Action a above, but within its above specified align-ment requirements and either fully withdrawn or within the long term steady state insertion limits if in CEA group 7, operation in MODES 1 and 2 may continue.

With one or more full length CEAs misaligned from any other CEAs in its group by more than 7.5 inches but less than 15 inches, operation in MODES 1 and 2 may continue, provided that within one hour the misaligned CEA(s) is either:

1.

Restored to OPERABLE status within its above specified alignment requirements, or

See Special Test Exceptions 3.10.2 and 3.10.5.

ST.

LUCIE - UNIT 1

3/4 1-20 Amendment No. g7, 7I

REACTIVITY CONTROL SYSTEMS FULL LENGTH CEA POSITION Continued LIMITING CONDITION FOR OPERATION Continued e.

2.

Declared inoperable and satisfy SHUTDOWN MARGW requirements of Specification 3.1.1.1.

After declaring the CEA inoperable, operation in MODES 1 and 2 may continue pursuant to the requirements of Specification 3.1.3.6 for up to 7 days per occurrence with a total accumulated time of < 14 days per calendar year provided all of the following conditions are met:

a)

Within 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months , the remainder of the CEAs in the group with the inoperable CEA shall, be aligned to within 7.5 inches of the inoperable CEA while maintaining the allowable CEA sequence and insertion limits shown on Figure 3.1-2; the THERMAL POWER level shall be restricted pursuant to Specification 3.1.3.6 during subsequent operation.

b)

The SHUTDOWN MARGIN requirement of Specification 3.1.1.1 is determined at least once per 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months ; otherwise, be in at least HOT STANDBY within 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months .

With one full length CEA misaligned from any other CEA in its group by 15 or more inches, operation in MODES 1

and 2 may continue provided that the misaligned CEA is positioned within 7.5 inches of other CEAs in its group in accordance with the time constraints shown in Figure 3.l-la.

With one full-length CEA misaligned from any other CEA in its group by 15 or more inches beyond the time constraints shown in Figure 3.l-la, reduce power to < 705 of RATED THERMAL POWER prior to completing ACTION f.l or f.2.

1.

Restore the CEA to OPERABLE status within its specified align-ment requirements, or 2.

Declare the CEA inoperable and satisfy the SHUTDOWN MARGIN requirements of Specification 3.1.1.1.

After declaring the CEA inoperable, operation in MODES 1 and 2 may continue pursuant to the requirements of Specification 3.1.3.6 provided:

a)

Within 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months the remainder of the CEAs in the group with the inoperable CEA shall be aligned to within 7.5 inches of the inoperable CEA while maintaining the allowable CEA sequence and insertion limits shown on Figure 3.1-2; the THERMAL POWER level shall be restricted pqr@ant to Specification 3.1.3.6 during subsequent operation.

ST.

LUCIE - UNIT 1

3/4 1-21 Amendment No. 71

REACTIVITY CONTROL SYSTEMS FULL LENGTH CEA POSITION Continued LIMITING CONDITION FOR OPERATION Continued b)

The SHUTDOWN MARGIN requirement of Specification 3.1.1.1 is determined at least once per 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months .

g.

With more than one full length CEA inoperable or misaligned from any other CEA in its group by 15 inches

{indicated position) or

more, be in HOT STANDBY within 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months .

h.

With one full-length CEA inoperable due to causes other than addressed by ACTION a above, and inserted beyond the long term steady state insertion limits but within its above specified alignment requirements, operation in MODES 1 and 2 may continue pursuant to the requirements of Specification 3.1.3.6.

SURVEILLANCE RE UIREMENTS 4.1.3.1.1 The position of each full length CEA shall be determined to be within 7.5 inches (indicated position) of all other CEAs in its group at least once per 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months except during time intervals when the Deviation Circuit and/or CEA Block Circuit are inoperable, then verify the individual CEA positions at least once per 4 hours4.62963e-5 days 0.00111 hours 6.613757e-6 weeks 1.522e-6 months .

4.1.3.1.2 Each full length CEA not fully inserted shall be determined to be OPERABLE by inserting it at'east 7.5 inches at 1~:ast once per 31 days.

4.1.3.1.3 The CEA Block Circuit shall be demonstrated OPERABLE at least once per 31 days by a functional test which verifies that the circuit prevents any CEA from being misaligned from all other CEAs in its group by more than 7.5 inches (indicated position).

4.1.3.1.4 The CEA Block Circuit shall be demonstrated OPERABLE by a func-tional test which verifies that the circuit maintains the CEA group overlap and sequencing requirements of Specification 3.1.3.6 and that the'circuit prevents the regulating CEAs from being inserted beyond the Power Dependent Insertion Limit of Figure 3.1-,2:

a.

Prior to each entry into MODE 2 from MODE 3, except that such verification need not be performed more often than once per 31 days, and b.

At least once per 6 months.

t'

The licensee shall be excepted from compliance during the startup test program for an entry into MODE 2 from MODE 3 made in association with a measurement of power defect.

ST.

LUCIE - UNIT 1

3/4 1-22 Amendment No. 7g,gg, 7I

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Fksurc 3.1-la Allmible Tfae to Real)on CEA vs. ln)t)il Fq ST. LUCIf - UNIT 1 3/4 1-23 Amendment No. 71

REACTIVITY CONTROL SYSTEMS POSITION INDICATOR CHANNELS LIMITING CONDITION FOR OPERATION 3.1.3.3 All shutdown and regulating CEA reed switch position indicator channels and CEA pulse counting position indicator channels'hall be OPERABLE and capable of determining the absolute CEA positions within

+ 2.25 inches.

APPLICABILITY:

MODES 1 and 2.

ACTION:

a.

Deleted.

b.

With a maximum of one reed switch position indicator channel per group or one (except as permitted by ACTION item d. below) pulse counting position indicator channel per group inoperable and the CEA(s) with the inoperable position indicator channel partially inserted, within 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months either:

1.

Restore the inoperable position indicator channel to OPERABLE status, or 2.

Be in HOT STANDBY, or 3.

Reduce THERMAL POWER to < 7OX of the maximum allowable THERMAL POWER level for the existing Reactor Coolant Pump combination; if negative reactivity insertion is required to reduce THERMAL POWER, boration shall be used.

Operation at or below this reduced THERMAL POWER level may continue provided that within the next 4 hours4.62963e-5 days 0.00111 hours 6.613757e-6 weeks 1.522e-6 months either:

a)

The CEA group(s) with the inoperable position indi-cator is fully withdrawn while maintaining the withdrawal sequence required by Specification 3.1.3.6 and when this CEA group reaches its fully withdrawn position, the "Full Out" limit of the CEA with the inoperable position indicator is actuated and verifies this CEA to be fully withdrawn.

Subsequent to fully withdrawing this CEA group(s), the THERMAL POWER level may be returned to a level wonsistent with all other applicable specifications~ or ST.

LUCIE - UNIT 1 3/4 1-24 Amendment No. 27

REACTIYITY CONTROL SYSTEMS BASES 3/4.1.2 BORATION SYSTEMS (Continued The boron addition capability after the plant has been placed in MODES 5 and 6 requires either 1660 gallons of 8% boric acid solution from the boric acid tanks or 1630 gallons of 1720 ppm borated water from the refuel-ing water tank to makeup for contraction of the primary coolant that could occur if the temperature is lowered from 200'F to 140'F.

3/4.1.3 MOVABLE CONTROL ASSEMBLIES The specifications of this section ensure that (1) acceptable power distribution limits are maintained, (2) the minimum SHUTDOWN MARGIN is maintained, and (3) the potential effects of a CEA ejection accident are limited to acceptable levels.

The ACTION statements which permit limited variations from the basic requirements are accompanied by additional restrictions which ensure that the original criteria are met.

/

The ACTION statements applicable to an inmovable or untrippable CEA and to a large misalignment

(> 15 inches) of two or more CEAs, require a

prompt shutdown of the reactor since either of these conditions may be indicative of a possible loss of mechanical functional capability of the CEAs and in the event of a stuck or untrippable CEA, the loss of SHUTDOWN MARGIN.

For small misalignments

(< 15 inches) of the CEAs, there is 1) a small degradation in the peaking factors relative to those assumed in generating LCOs and LSSS setpoints for DNBR and linear heat rate,

2) a small effect on the time dependent long term power distributions relative to those used in generating LCOs and LSSS setpoints for DNBR and linear heat rate, 3) a small effect on the available SHUTDOWN MARGIN, and 4) a small effect on the ejected CEA worth used in the safety analysis.

Therefore, the ACTION statement associated with the small misalignment of a CEA permits a one hour time interval during which attempts may be made to restore the CEA to within its alignment requirements prior to initiating a reduction in THERMAL POWER.

The one hour time limit is sufficient to (1) identify causes of a misaligned

CEA, (2) take appropriate corrective action to realign the CEAs, and (3) minimize the effects of xenon redistribution.

Overpower margin is provided to protect the core in the event of a large misalignment

(> 15 inches) of a CEA.

However, this misalignm&t would cause distortion of the core power distribution.

This distributionknay, in turn.

have a significant effect on (1) the available SHUTDOWN MARGIN (2) the time-dependent long-term power distr ibutions relative to those used in generating LCOs and LSSS setpoints.

and (3) the ejected CEA worth used fn the safety analysis.

Therefore, the ACTION statement associated with the large mis-alignment of the CEA requires a prompt realignment of the misaligned CEA.

ST.

LUCIE - UNIT 1

B 3/4 1-3 Amendment No. 27,7I

REACTIVITY CONTROL SYSTEMS BASES 3/4.1.3 MOVABLE CONTROL ASSEMBLIES Continued The ACTION statements applicable to misaligned or inoperable CEAs include requirements to align the OPERABLE CEAs in a given group with the inoperable CEA.

Conformance with these alignment requirements brings the core, within a short period of time, to a configuration consistent with that assumed in generating LCO and LSSS setpoints.

However, extended operation with CEAs significantly inserted in the core may lead to pertur-bations in 1) local burnup,

2) peaking factors, and 3) available shutdown

'argin which are more adverse than the conditions assumed to exist in the safety analyses and LCO and LSSS setpoints determination.

Therefore, time limits have been imposed on operation with inoperable CEAs to preclude such adverse conditions from developing.

The requi~ement to reduce power in certain time limits, dependinq upon the previous Fr, is to eliminate a potential nonconservatism for situations when a

CEA has been declared inoperable.

A worst case analysis has shown that a

DNBR SAFDL violation may occur during the second hour after the CEA misalignment if this requirement is not met.

This potential DNBR SAFDL violation is eliminated by limiting the time operation is permitted at FULL POWER before power reductions are required.

These reductions will be necessary once the deviated CEA has been declared inoperable.

The time allowed to continue operation at a reduced power level can be permitted for the following reasons:

1.

The margin calculations that support the Tec/nical Specifications are based on a steady-state radial peak of F~

> 1.70.

2.

When the actual Fr < 1.70, significant additional margin exists.

3.

4.

T)is additional margin can be credited to offset the increase in F

with time that can occur following a CEA misalignment.

This increase in F is caused by xenon redistribution.

5.

The present analysis can support allowing a misalignment to egist for up to 60 minutes without correction, if the initial F~

< 1.67..

Operability of the CEA position indicators (Specification 3.1.3.3) is required to determine CEA positions and thereby ensure compliance with the CEA alignment and insertion limits and ensures proper operatiotj of the rod block circuit.-

The CEA ".Full In" and "Full Out" limits providgan addi-tional independent means-for determining the CEA positions when the CEAs are at either their fully inserted or fully withdrawn positions.

Therefore, the ACTION statements applicable to inoperable CEA position indicators permit continued operations when the positions of CEAs with inoperable position indicators can be verified by the "Full In" or "Full Out" limits.

ST.

LUCIE - UNIT 1

B 3/4 1-4 Amendment No. 7S,N~

REACTIVITY CONTROL SYSTEMS BASES 3 4.1.3 MOVABLE CONTROL ASSEMBLIES Continued CEA positions and OPERABILITY of the CEA position indicators are required to be verified on a nominal basis of once per 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months with more frequent verifications required if an automatic monitoring channel is inoperable.

These verification frequencies are adequate for assuring that the applicable LCOs are satisfied.

The maximum CEA drop time permitted by Specification 3.1.3.4 is the assumed CEA drop time of 3.1 seconds used in the safety analyses.

Measure-ment with Ta

) 515'F and with all reactor coolant pumps operating ensures that the meaNred drop times will be representative of insertion times experienced during a reactor trip at operating conditions.

The LSSS setpoints and the power distribution LCOs were generated based upon a core burnup which would be achieved with the core operating in an essentially unrodded configuration.

Therefore, the CEA insertion limit specifications require that during MODES 1 and 2, the full length CEAs be nearlv fully withdrawn.

The amount of CEA insertion permitted by the Long Term Steady State Insertion Limits of Specification 3.1.3.6 will not have a significant effect upon the unrodded burnup assumption but will still provide sufficient reactivity control.

The Power Dependent Insertion Limits of Specification 3.1.3.6 are provided to ensure that (1) acceptable power distribution limits are maintained, (2) the minimum SHUTDOWN MARGIN is maintained, and (3) the potential effects of a CEA ejection accident are limited to acceptable levels;

however, long term operation at these inser-tion limits could have adverse effects on core power distribution during subsequent'peration in an unrodded configuration.

ST.

LUCIE - UNIT 1

8 3/4 1-5 Amendment No. g7,82,"I

ML17216A406

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