ML20134M586

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Proposed Tech Spec Re Rated Thermal Power Range Over Which Rod Block Monitor Channels Must Be Operable
ML20134M586
Person / Time
Site: Brunswick  Duke Energy icon.png
Issue date: 08/28/1985
From:
CAROLINA POWER & LIGHT CO.
To:
Shared Package
ML20134M576 List:
References
NUDOCS 8509040187
Download: ML20134M586 (10)
v • d • e


Text

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a ENCLOSURE 1 TO NLS-85-189 PROPOSED TECHNICAL SPECIFICATION PAGES BRUNSWICK-1 1 ROD BLOCK MONITOR OPERABILITY (84TSB12) l gDR50904clB7 850828

p ADOCK 05000324 l PDR l

(1543NLU/mfI

SUMMARY

LIST OF REVISIONS PAGE NO. DESCRIPTION 3/4 1-17 APPLICABILITY -

Change to read " OPERATIONAL CONDITION 1, when THERMAL POWER is greater than or equal to 35% of RATED THERMAL POWER."

3/4 3-41 Table 3.3.4 Change Note

  • to read "When THERMAL POWER is greater than or equal to 35% of RATED THERMAL POWER."

3/4 3-43a Table 4.3.4-1 -

Change Note

  • to read "When THERMAL POWER is greater than or equal to 35% of RATED THERMAL POWER."

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, (BSEP-1-64)

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REACTIVITY CONTROL SYSTEMS ROD BIACK MONITOR LIMITINC CONDITION FOR OPERATION 3.1.4.3 Both Rod Block Monitor (RBM) channels shall be OPERABLE.

APPLICABILITY: OPERATIONAL CONDITION 1, when THERMAL POWER is greater than or equal to 35% of RATED THERMAL POWER.

ACTION:

a. With one RBM channel inoperable, POWER OPERATION may continue provided that eithers
1. The inoperable RBM channel is restored to OPERABLE status within l 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />, or
2. The redundant RBM is demonstrated OPERABLE within 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br /> and at least once per 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> until the inoperable RBM is restored to OPERABLE status, and the inoperable RBM is restored to OPERABLE status within 7 days, or
3. THERMAL POWER is limited such that MCPR will remain above 1.07 assuming a single error that results in complete withdrawal of any single control rod that is capable of withdrawal.

Otherwise, trip at least one rod block monitor channel.

b. With both RBM channels inoperable, trip at least one rod block monitor channel within one hour.

SURVEILLANCE REQUIREMENTS 4.1.4.3 Each of the above required RBM channels shall be demonstrated OPERABLE by performance of a CHANNEL FUNCTIONAL TEST and CHANNEL CALIBRATION at the frequencies and during the OPERATIONAL CONDITIONS specified in Table

'4.3.4-1.

BRUNSWICK - UNIT 1 '3/4 1-17 Amendment No.

- ( BSEP-1-64 )

l TABLE 3.3.4-1 (Cont _inued)

, - .. CONTROL ROD WITHDRAW /.L BLOCK INSTRUMENTATION NOTE (a) he minimum number of OPERABLE CHANNELS may be reduced by one for up to 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> in one of the trip systems for maintenance and/or testing except for Rod Block Monitor function.

(b) This function is bypassed if detector is reading >100 cps or the IRM channels are on range 3 or higher.

(c) This function is bypassed when the associated IRM channels are on range 8 or higher.

(d) A total of 6 IRM instruments must by OPERABLE.

(e) This function is bypassed when the IRM channels are on range 1.

  • 'When THERMAL POWER is greater than or equal to 35% of RATED THERMAL POWER.

,# This signal is contained in the, Channel A logic only.

BRUNSWICK - UNIT 1 3/4 3-41 Amendment No.

(BSEP-1-64) - -

g TABLE 4.3.4-1 (Cont'd)

E m CONTROL ROD WITHDRAWAL BLOCK INSTRIMENTATION SURVEILLANCE REQUIREMENTS N

O CHANNEL OPERATIONAL i CHANNEL FUNCTIONAL CHANNEL CONDITIONS IN WHICH g TRIP FUNCTION AND INSTRUMENT NUMBER CHECK TEST CALIBRATION (a) SURVEILLANCE REQUIRED s

[ 5. SCRAM DISCHARCE VOLUME (C11-LSH-N013E)

a. Water Level - High NA Q R 1, 2, 5**

(a) CHANNEL CALIBRATIONS are electronic.

(b) This calibration shall consist of the adjustment of the APRM flow biased setpoint to conform to a calibrated flow signal. .

(c) Within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> prior to startup, if not performed within the previous 7 days.

(d) When changing from CONDITION 1 to CONDITION 2, perform the required surveillance R within 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> after entering CONDITION 2.

  • When THERMAL POWER is greater than or equal to 35% of RATED THERMAL POWER. l y ** With any control rod withdrawn. Not applicable to control rods removed per

$ Specification 3.9.10.1 or 3.9.10.2.

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b __ - - . - - ---- - -- --

I ENCLOSURE 2 TO NLS-85-189 PROPOSED TECHNICAL SPECIFICATION PAGES BRUNSWICK-2 ROD BLOCK MONITOR OPERABILITY (84TSB12) a l

(1543NLU/mf )

SUMMARY

LIST OF REVISIONS PAGE NO. DESCRIPTION 3/4 1-17 APPLICABILITY - Change to read " OPERATIONAL CONDITION 1, when THERMAL POWER is greater than or equal to 35% of RATED THERMAL POWER."

3/4 3-41 Table 3.3.4 Change Note

  • to read "When THERMAL POWER is greater than or equal to 35% of RATED THERMAL POWER."

3/4 3-43a Table 4.3.4-1 - Change Note

  • to read "When THERMAL POWER is greater than or equal to 35% of RATED THERMAL POWER."

i (1543NLU/mf)

, (BSEP-2-59)

REACTIVITY CONTROL SYSTEMS ROD BLOCK MONITOR ,

LIMITING CONDITION FOR OPERATION 3.1.4.3 Both Rod Block Monitor (RBM) channels shall be OPERABLE.

APPLICABILITY: OPERATIONAL CONDITION 1, when THERMAL POWER is greater than or i equal to 35% of RATED THERMAL POWER. l ACTION:

i

a. With one RBM channel inoperable, POWER OPERATION may continue provided that either:
1. The inoperable RBM channel is restored to OPERABLE status within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />, or
2. The redundant RBM is demonstrated OPERABLE within 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br /> and at least once per 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> until the inoperable RBM is restored to OPERABLE status within 7 days, or i
3. THERMAL POWER is limited such that MCPR will remain above 1.07, j assuming a single error that results in complete withdrawal of i any single control rod that is capable of withdrawal. ,

, Otherwise, trip at least one rod block monitor channel;

b. With both RBM channels inoperable, trip at least one rod block monitor channel within one hour. .

SURVEILLANCE REQUIREMENTS 1

4.1.4.3 Each of the above required RBM channels shall be demonstrated '

OPERABLE by performance of a CHANNEL FUNCTIONAL TEST and CHANNEL CALIBRATION at the frequencies and during the OPERATIONAL CONDITIONS specified in Table 4.3.4-1.

9 BRUNSWICK - UNIT'2 3/4 1-17 Amendment No.

- (BSEP-2-59) l i

TABLE 3.3.4-1 (Continued)

CONTROL ROD WITHDRAWAL BLOCK INSTRUMENTATION NOTE (a) The alnimum number of OPERABLE CHANNELS may be reduced by one for up to 2

- hours in one of the trip systems for maintenance and/or testing except for Rod Block Monitor function.

(b) This function is bypassed if detector is reading >100 cps or the IRM channels are on range 3 or higher.

(c) This function is bypassed when the associated IRM channels are on range 8 or higher.

(d) A total of 6 IRM instruments must be OPERABLE.

(e) This function is bypassed when the IRM channels are on range 1.

  • When THERMAL POWER is greater than or equal to 35% of RATED THERMAL POWER.

,# This signal is contained in the Channel A logic only. -

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BRUNSWICK - UNIT 2 3/4,3-41 Amendment No.

(BSEP-2-59)

  • I g TABLE 4.3.4-1 (Cont'd)

E ca CONTROL ROD WITHDRAWAL BIDCK INSTRIMENTATION SURVEILLANCE REQUIREMENTS M

R CHANNEL OPERATIONAL g CHANNEL FUNCTIONAL CHANNEL CONDITIONS IN WHICH TEST CALIBRATION y TRIP FUNCTION AND INSTRUMENT NtWBER CHECK SURVEILLANCE REQUIRED

5. SCRAM DISCHARGE VOLUME (C12-LSH-NO13E)
a. Nater Level - High NA Q R 1, 2, 5**

(a) CHANNEL CALIBRATT.ONS are electronic.

(b) This calibration shall consist of the adjustment of the APRM flow biased setpoint to conform to a calibrated flow signal.

(c) Within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> prior to s.tartup, if not performed within the previous 7 days.

R (d) When changing from CONDITION 1 to CONDITION 2, perform the required surveillance

  • , within 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> after entering CONDITION 2.

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  • When THERMAL POWER is greater than or equal to 35% of RATED THERMAL POWER. {

g ** With any control rod withdrawn. Not applicable to control rods removed per p Specification 3.9.10.1 or 3.9.10.2.

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