Text

Tech Spec Pages for Amendment 311 Regarding New Technical Specification for Loss of Power Instrumentation for Emergency Diesel General Auxiliary Feedwater Actuation (TS-04-01)
	ML062710019
Person / Time
Site:	Sequoyah
Issue date:	09/14/2006
From:	; NRC/NRR/ADRO/DORL/LPLII-2
To:	;
	Pickett D, NRR/DORL, 415-1364
Shared Package
ML062710162	List: ML062160250; ML062710017; ML062710019;
References
	TAC MC4584, TAC MC4585
	Download: ML062710019 (13)
	v • d • e

(4)

Pursuant to the Act and 10 CFR Parts 30, 40 and 70, to receive, possess, and use in amounts as required, any byproduct, source or special nuclear material without restriction to chemical or physical form, for sample analysis, instrument calibration or associated with radioactive apparatus or components; and (5)

Pursuant to the Act and 10 CFR Parts 30, 40 and 70, to possess, but not separate, such byproduct and special nuclear materials as may be produced by the operation

-of the Sequoyah and Watts Bar Unit 1 Nuclear Plants.

C.

This license shall be deemed to contain and is subject to the conditions specified in the Commission's regulations set forth in 10 CFR Chapter I and is subject to all applicable provisions of the Act and to the rules, regulations, and orders of the Commission now or hereafter in effect; and is subject to the additional conditions specified or incorporated below:

(1)

Maximum Power Level The Tennessee Valley Authority is authorized to operate the facility at reactor core power levels not in excess of 3455 megawatts thermal.

(2)

Technical Specifications The Technical Specifications contained in Appendices A and B, as revised through Amendment No.

, are hereby incorporated into this license. The licensee shall operate the facility in accordance with the Technical Specifications.

(3)

Initial Test Program The Tennessee Valley Authority shall conduct the post-fuel-loading initial test program (set forth in Section 14 of Tennessee Valley Authority's Final Safety Analysis Report, as amended), without making any major modifications of this program unless modifications have been identified and have received prior NRC approval. Major modifications are defined as:

a.

Elimination of any test identified in Section 14 of TVA's Final Safety Analysis Report as amended as being essential;

b.

Modification of test objectives, methods or acceptance criteria for any test identified in Section 14 of TVA's Final Safety Analysis Report as amended as being essential;

c.

Performance of any test at power level different from there described; and Amendment No. 311

INDEX DEFINITIONS SECTION 3/4.2 POWER DISTRIBUTION LIMITS 3/4.2.1 AXIAL FLUX DIFFERENCE (AFD)........................................................................................

3/4 2-1 3/4.2.2 HEAT FLUX HOT CHANNEL FACTOR-FQ (Z).............................

3/4 2-5 3/4.2.3 NUCLEAR ENTHALPY HOT CHANNEL FACTOR.............................................................

3/4 2-10 3/4.2.4 QUADRANT POW ER TILT RATIO.....................................................................................

3/4 2-12 3/4.2.5 DNB PARAM ETERS...........................................................................................................

3/4 2-15 3/4.3 INSTRUMENTATION 3/4.3.1 REACTOR TRIP SYSTEM INSTRUMENTATION................................................................

3/4 3-1 3/4.3.2 ENGINEERED SAFETY FEATURE ACTUATION SYSTEM INSTRUMENTATION....... 3/4 3-14 3/4.3.3 MONITORING INSTRUMENTATION RADIATION MONITORING INSTRUMENTATION.............................................................

3/4 3-39 MOVABLE INCORE DETECTORS (Deleted)...........................................

3/4 3-43 SEISMIC INSTRUMENTATION (Deleted).........................................................................

3/4 3-44 METEOROLOGICAL INSTRUMENTATION (Deleted).....................................................

3/4 3-47 REMOTE SHUTDOWN INSTRUMENTATION 3/4 3-50 CHLORINE DETECTION SYSTEMS (DELETED)............................................................

3/4 3-54.

ACCIDENT MONITORING INSTRUMENTATION...........................

3/4 3-55 FIRE DETECTION INSTRUMENTATION (DELETED)......................................................

3/4 3-58 DELETED........

........... 3/4 3-70 EXPLOSIVE GAS MONITORING INSTRUMENTATION..................................................

3/4 3-71 LOSS OF POWER DIESEL GENERATOR START INSTRUMENTATION........................ 314 3-76 SEQUOYAH - UNIT 1 V

Amendment No. 62, 138, 148, 227, 245, 305, 311

TABLE 3.3-3 (Continued)

ENGINEERED SAFETY FEATURE ACTUATION SYSTEM INSTRUMENTATION TOTAL NO.

OF CHANNELS CHANNELS TO TRIP MINIMUM CHANNELS OPERABLE APPLICABLE MODES FUNCTIONAL UNIT ACTION

7. This FUnctional Unit has been deleted.

8. ENGINEERED SAFETY FEATURE ACTUATION SYSTEM INTERLOCKS

a. Pressurizer Pressure-P-1 "1/Not P-11 3

2 2

1,2,3 22a

b. Deleted

c. Steam Generator Level P-14 3/loop 2/loop any loop 3/oop 1,2 22c SEQUOYAH - UNIT 1 3/4 3-21 Amendment No. 41, 129, 141, 160,182, 188,207, 310, 311

TABLE 3.3-3 (Continued)

TABLE NOTATION Trip function may be bypassed in this MODE below P-11 (Pressurizer Pressure Block of Safety Injection) setpoint.

Trip fubnction automatically blocked above P-1 1 and may be blocked below P11 when Safety Injection on Steam Line Pressure-Low is not blocked.

I ACTION STATEMENTS ACTION 15 ACTION 16 ACTION 17 With the number of OPERABLE Channels one less than the Total Number of Channels, be in at least HOT STANDBY within 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months and in COLD SHUTDOWN within the following 30 hours3.472222e-4 days 0.00833 hours 4.960317e-5 weeks 1.1415e-5 months ; however, one channel may be bypassed for up to 4 hours4.62963e-5 days 0.00111 hours 6.613757e-6 weeks 1.522e-6 months for surveillance testing per Specification 4.3.2.1.1 provided the other channel is OPERABLE.

Deleted.

With the number of OPERABLE Channels one less than the Total Number of Channels, STARTUP and/or POWER OPERATION may proceed provided the following conditions are satisfied:

a.

The inoperable channel is placed in the tripped condition within 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months .

b.

The Minimum Channels OPERABLE requirements is met; however, the inoperable channel may be bypassed for up to 4 hours4.62963e-5 days 0.00111 hours 6.613757e-6 weeks 1.522e-6 months forsurveillance testing of other channels per Specification 4.3.2.1.1.

With the number of OPERABLE Channels one less than the Total Number of Channels, operation may proceed provided the inoperable channel is placed in the bypassed condition within 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months and the Minimum Channels OPERABLE requirement is met; one additional channel may be bypassed for up to 4 hours4.62963e-5 days 0.00111 hours 6.613757e-6 weeks 1.522e-6 months for surveillance testing per Specification 4.3.2.1.1.

With less than the Minimum Channels OPERABLE, operation may continue provided the containment purge supply and exhaust valves are maintained closed.

With the number of OPERABLE Channels one less than the Total Number of Channels, restore the inoperable channel to OPERABLE status within 48 hours5.555556e-4 days 0.0133 hours 7.936508e-5 weeks 1.8264e-5 months or be in at least HOT STANDBY within the next 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months and in COLD SHUTDOWN within the following 30 hours3.472222e-4 days 0.00833 hours 4.960317e-5 weeks 1.1415e-5 months .

ACTION 18 ACTION 19 ACTION 20 SEQUOYAH -.UNIT 1 3/4 3-22 Amendment No. 63,141, 168,182,188, 202, 207, 213, 301, 311

TABLE 3.3-3 (Continued)

ACTION 21 -

ACTION 22 ACTION 23 -

With less than the Minimum Number of Channels OPERABLE, declare the associated auxiliary feedwater pump inoperable, and comply with the ACTION requirements of Specification 3.7.1.2.

With less than the Minimum Number of Channels OPERABLE, declare the interlock inoperable and verify that all affected channels of the functions listed below are OPERABLE or apply the appropriate ACTION statement(s) for those functions.

Functions to be evaluated are:

a.

Safety Injection Pressurizer Pressure Steam Line Pressure Negative Steam Line Pressure Rate

b.

Deleted

c.

Turbine Trip Steam Generator Level High-High Feedwater Isolation Steam Generator Level High-High With the number of OPERABLE channels one less than the Total Number of Channels, be in at least HOT STANDBY within 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months and in at least HOT SHUTDOWN within the following 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months ; however, one channel may be bypassed for up to 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months for surveillance testing per Specification 4.3.2.1.1.

With the number of OPERABLE channels one less than the Total Number of Channels, restore the inoperable channel to OPERABLE status within 48 hours5.555556e-4 days 0.0133 hours 7.936508e-5 weeks 1.8264e-5 months or be in at least HOT STANDBY within 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months and in at least HOT SHUTDOWN within the following 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months .

With the number of OPERABLE channels one less than the Total Number of Channels, restore the inoperable channel to OPERABLE status within 48 hours5.555556e-4 days 0.0133 hours 7.936508e-5 weeks 1.8264e-5 months or declare the associated valve inoperable and take the ACTION required by Specification 3.7.1.5.

Deleted ACTION 24 ACTION 25 -

ACTION 34 SEQUOYAH - UNIT 1 3/4 3-23 Amendment No. 12, 63, 129, 141, 160, 182, 188, 207, 310, 311

TABLE 3.3-4 (Continued)

ENGINEERED SAFETY FEATURE ACTUATION SYSTEM INSTRUMENTATION TRIP SETPOINTS FUNCTIONAL UNIT NOMINAL TRIP SETPOINT ALLOWABLE VALUES ii. RCS Loop AT Equivalent to Power

> 50% RTP Coincident with Steam Generator Water Level-Low-Low (Adverse) 15.0% of narrow range instrument span

> 14.4% of narrow range instrument span and Containment Pressure (EAM) or Steam. Generator Water Level-Low-Low (EAM) 0.5 psig

_< 0.6 psig 10.7% of narrow range instrument span

> 10.1% of narrow range instrument span

d. S.1.

e. Loss of Power Start See 1 above (all SI Setpoints)

Refer to Function 1 of Table 3.3-14 for setpoints and allowable values.

1. Voltage Sensors

2. Load Shed Timer

f. Trip of Main Feedwater Pumps

g. Auxiliary Feedwater Suction Pressure-Low N.A.

N.A.

h. Auxiliary Feedwater Suction Transfer Time Delays 3.21 psig (motor driven pump) 13.9 psig (turbine driven (pump) 4 seconds (motor driven pump) 5.5 seconds (turbine drive pump) 2 2.44 psig (motor driven pump)

> 12 psig (turbine driven pump)

< 4.4 seconds and

> 3.6 seconds (motor driven pump) n

< 6.05 seconds and

Ž4.95 seconds (turbine driven pump)

Amendment No. 29, 94, 129, 141, 151,182,183, 188,207, 219, 310, 311 SEQUOYAH - UNIT 1 3/4 3-27a

TABLE 3.3-4 (Continued)

ENGINEERED SAFETY FEATURE ACTUATION SYSTEM INSTRUMENTATION TRIP SETPOINTS FUNCTIONAL UNIT NOMINAL TRIP SETPOINT ALLOWABLE VALUES

7.

This Functional Unit has been deleted.

I

8.

ENGINEERED SAFETY FEATURE ACTUATION SYSTEM INTERLOCKS

a. Pressurizer Pressure

1. Not P-11, Automatic Unblock of Safety Injection on Increasing Pressure

2.

P-1 1, Enable Manual Block of Safety Injection on Decreasing Pressure 1970 psig 1962 psig

< 1975.2 psig

> 1956.8 psig Amendment No. 33, 129, 141, 182, 188,207,219, 310, 311 SEQUOYAH - UNIT 1 3/4 3-27b

TABLE 4.3-2 (Continued)

ENGINEERED SAFETY FEATURE ACTUATION SYSTEM INSTRUMENTATION SURVEILLANCE REQUIREMENTS CHANNEL CHANNEL CHECK CALIBRATION FUNCTIONAL UNIT

c.

Main Steam Generator Water Lvel--Low-Low

1. Steam Generator Water Level-Low-Low (Adverse)

2. Steam Generator Water Level-Low-Low (EAM)

3. RCS Loop AT

4. Containment Pressure (EAM)

d.

S.1.

e. Loss of Power Start

1. ' Voltage Sensors

2. Load Shed Timer

f. Trip of Main Feedwater Pumps

g. Auxiliary Feedwater Suction Pressure-Low h; Auxiliary Feedwater Suction Transfer Time Delays

7.

This Functional Unit has been deleted.

SEQUOYAH - UNIT 1 S

S S

S R

R R

R CHANNEL FUNCTIONAL TEST Q

Q Q

Q MODES FOR WHICH SURVEILLANCE REQUIRED 1,2,3 1, 2,3 1,2,3 1,2,3 See 1 above (all SI surveillance requirements)

N.A.

R R

N.A.

R R

M N.A.

R N.A.

N.A.

1,2,3 1,2,3 1,2 1,2,3 1,2,3 Amendment No. 29, 129, 141, 182, 188, 207, 253, 311 3/4 3-37

TABLE 4.3-2 (Continued)

ENGINEERED SAFETY FEATURE ACTUATION SYSTEM INSTRUMENTATION SURVEILLANCE REQUIREMENTS CHANNEL CHANNEL CHECK CALIBRATION CHANNEL FUNCTIONAL TEST MODES FOR WHICH SURVEILLANCE REQUIRED FUNCTIONAL UNIT I

8.

ENGINEERED SAFETY FEATURE ACTUATION SYSTEM INTERLOCKS

a. Pressurizer Pressure, P-1 1/Not P-1I

b. Deleted

c. Steam Generator Level, P-14

9. AUTOMATIC SWITCHOVER TO CONTAINMENT SUMP N.A.

R(2)

NA.

1,2,3 N.A.

R(2)

N.A.

1,2

a.

RSWT Level - Low COINCIDENT WITH Containment Sump Level -

High.

AND Safety Injection

b.

Automatic Actuation Logic S

S R

R Q

Q 1,2,3,4 1,2,3,4 (See 1 above for all Safety Injection Surveillance Requirements)

N.A.

M(1) 1,2,3,4 SEQUOYAH - UNIT 1 3/4 3-37a Amendment No. 47, 63, 129, 141, 182, 188, 207, 311

TABLE 4.3-2 (Continued)

TABLE NOTATION (1)

Each train or logic channel shall be tested at least every 62 days on a STAGGERED TEST BASIS.

(2)

The total interlock function shall be demonstrated OPERABLE during CHANNEL CALIBRATION testing of each channel affected by interlock operation.

SEQUOYAH - UNIT 1 3/4 3-38 Amendment No. 47, 182, 188, 207, 311

INSTRUMENTATION LOSS OF POWER (LOP) DIESEL GENERATOR (DG) START INSTRUMENTATION LIMITING CONDITION FOR OPERATION 3.3.3.11 The LOP DG start instrumentation for each function in Table 3.3-14 shall be OPERABLE.

APPLICABILITY:

MODES 1,2,3, and 4, When associated DG is required to be OPERABLE by LCO 3.8.1.2, "AC Sources -

Shutdown."

ACTION:

a.

With the number of OPERABLE channels one less than the Required Channels for voltage sensors, restore the inoperable channel to OPERABLE status within 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months or enter applicable Limiting Condition(s) For Operation and Action(s) for the associated DG set made inoperable by the channel.

b.

With the number of OPERABLE channels less than the Required Channels by more than one for voltage sensors or with the number of OPERABLE channels one less than the Required Channels for timers, restore all but one channel of voltage sensors and at least one timer for each function to OPERABLE status within 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months or enter applicable Limiting Condition(s) For Operation and Action(s) for the associated DG set made inoperable by the channels.

c.

Separate entry is allowed for each function.

d.

Enter applicable Actions of LCO 3.3.2, "Engineered Safety Feature Actuation System Instrumentation," for Auxiliary Feedwater Loss of Power Start Instrumentation made inoperable by LOP DG Start Instrumentation.

SURVEILLANCE REQUIREMENTS 4.3.3.11.1 Each LOP DG Start Instrumentation channel shall be demonstrated OPERABLE by the performance of the CHANNEL CHECK, CHANNEL CALIBRATION, and.CHANNEL FUNCTIONAL TEST operations for the MODES and at the frequencies shown in Table 4.3-10.

4.3.3.11.2 The ENGINEERED SAFETY FEATURES RESPONSE TIME of each LOP DG Start Instrumentation function shall be verified to be within the limit at least once per 18 months. Each verification shall include at least one train such that both trains are verified at least once per 36 months and one channel per function such that all channels are verified at least once every N times 18 months where N is the total number of redundant channels.

SEQUOYAH - UNIT 1 3/4 3-76 Amendment No. 311

TABLE 3.3-14 LOSS OF POWER DIESEL GENERATOR START INSTRUMENTATION APPLICABLE MODES OR CONDITIONS REQUIRED CHANNELS FUNCTIONAL UNIT

1.

6.9 k' Shutdown Board -

Loss of Voltage

a. Voltage Sensors

b. Diesel Generator Start and Load Shed 7"imer

2.

6.9 k.v Shutdown Board -

Degraded Voltage

a. Voltage Sensors

b. Diesel Generator Start and Load Shed Timer

c.

SI/Degraded Voltage Logic Enable Timer NOMINAL TRIP SETPOINT 5520 1.25 seconds 1, 2, 3, 4, #

3/Shutdown Board 1, 2,3, 4, #

1/Shutdown Board ALLOWABLE VALUES 5331 volts and

< 5688 volts 1.00 seconds and

< 1.50 seconds 1, 2, 3, 4, #

3/Shutdown Board 1, 2, 3, 4, #

1/Shutdown Board 1, 2, 3, 4 I/Shutdown Board 6456 volts 300 seconds 9.5 seconds

Ž6403.5 volts and

< 6522.5volts k 218.6 seconds

.and

< 370 seconds k 7.5 seconds and

<11.5 seconds

When associated DG is required to be OPERABLE by LCO 3.8.1.2, "AC Sources - Shutdown."

SEQUOYAH - UNIT I 3/4 3-77 Amendment No. 311

TABLE 4.3-10 LOSS OF POWER DIESEL GENERATOR START INSTRUMENTATION SURVEILLANCE REQUIREMENTS CHANNEL MODES FOR WHICH FUNCTIONAL UNIT CHANNEL CHANNEL FUNCTIONAL SURVEILLANCE CHECK CALIBRATION TEST REQUIRED

1.

6.9 kv Shutdown Board -

Loss of Voltage

a. Voltage Sensors N.A.

R M

1, 2, 3, 4, #

b. Diesel Generator Start and N.A.

R N.A.

1, 2, 3, 4, #

Load Shed Timer

2.

6.9 kv Shutdown Board -

Degraded Voltage

a. Voltage Sensors N.A.

R M

1, 2, 3,4, #

b. Diesel Generators Start N.A.

R N.A.

1, 2, 3,4, #

and Load Shed Timer

c. SI/Degraded Voltage Logic N.A.

R N.A.

1,.2, 3,4 Enable Timer

When associated DG is required to be OPERABLE by LCO 3.8.1.2, "AC Sources - Shutdown."

SEQUOYAH - UNIT 1 3/4 3-78 Amendment NO.

311

v t e Letter Sequence Other
TAC:MC4584, Add Upper Limits to the Voltage and Time Delay Setpoints of the Loss of Voltage Relays (Approved, Closed) TAC:MC4585, Add Upper Limits to the Voltage and Time Delay Setpoints of the Loss of Voltage Relays (Approved, Closed)
Initiation Acceptance... Administration Questions 13 January 2006 Answers 25 May 2006 Results Approval Other: ML062710017, ML062710019
MONTHYEAR2006-05-25 [Table View]

ML062710019

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