Text

Proposed Tech Specs 3/4.3 Re Instrumentation
	ML20217H803
Person / Time
Site:	Callaway
Issue date:	08/08/1997
From:	; UNION ELECTRIC CO.
To:	;
Shared Package
ML20217H793	List: ML20217H803; ULNRC-03625, Application for Amend to License NPF-30,revising Tech Spec 3/4.3 Re Instrumentation & Changing Slave Relay Quarterly Surveillance to Quarterly Actuation Logic Test for Ms & FW Isolation Sys Actuation & Relays;
References
	NUDOCS 9708130247
	Download: ML20217H803 (14)
	v • d • e

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i' ULNRC-03625 l

A'ITActiMENT 1 TEC11NICAL SPECIFICATION CIIANGES Current Table 3.3 3 (Page 3/4 3-16)

Current Table 3.3 3 (Page 3/4 3-17)

Current Table 3.3-3 (Page 3/4 3 20)

Current Table 3.3-3 (Page 3/4 3 21) :

Cunent Table 3.3 3 (Page 3/4 3-21(a)) l Cunent Table 4.3-2 (Page 3/4 3 35)

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. . . . _ . . . - -_ = . . . - - - - ..

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TA8tE 5 5-3 (Continued)

O q %, ,

, ENGINEERED SAFETY FEATURES ACTUATION SYSTEM INSTMBENTATIM ,

> i

-E. MINIMM E T0!AL No. CNUNIELS CNANNELS APPLICA8tE ~

4 FUNCTIONAL UNIT OF CHANNELS TO TRIP OPERABLE MODES ETION

. i g 3. Containment Isolation (continued) .

2 1, 2, 3, 4 17 7 2) ' Automatic Actuation ~2 1 .

i Logic and Actuation Relays (SSPS) -l 2 2 1, 2, 3, 0 17

3) Automatic Actuation 1 Logic and Actuation Relays (90P ESFAS) j

4) Phase "A" Isolation See Item 3.a. for all Phase "A* Isolation initiating l functions and requirements.

i.

4. Steam Line Isolation

a. Manual Initiation

~

w- 1) Individual 1/ steam line 1/ steam line 1/ operating 1, 2, 3 23

' steam ifne as 2 1, 2, 3 22

2) System 2 1

~

2 1, 2, 3 34 g l

b. 1) Automatic Actuation 2 1 Logic and Actuation '

Rela .

2/S!"S !..le 2/S" inh- 1, 2, 3 34e- f Automatic Actuation 3/55"0 Tak #

a- Logic and Actuation 2" / 2

/

Relays A f 3 2 2 1, 2, 3 33*

E. c. Containment Pressure-

2 High-2 n 33* !

1, 2, 3#

j' z d. Steam Line 3/ steam line 2/ steam line 2/ steam line Pressure-tow any steam

- .;ae t

.t 2/ steam line 2/ steam line 3ff 33* l

e. Steam Line Pressure- 3/ steam line [

" Negative Rate-High any steam -

line . ,.

TABLE J.3-3 fContinued) i (

p W -

ENGINEERED SAFETY FEATURE CTUATION SYSTEM INSilU DITATION .

P MINIMUM E TOTAL NO. CHANNELS CHMetELS APPLICABLE .

4 FUNCTIONAL WII' 0F CHMWlELS TO TRIP OPERABLE MDDES ETION

5. Feedwater Isolation & Turbine Trip h

Z a. 'l) Automatic Actuation 2 1 2 1, 2 27 I V y

2) Automatic Actuation -3/SZ L.in 2/SSPS Tnt - 2/55'S '. e:e 1, 2 4Ia-Logic and Actuation Relays 5) p f

b. Steam Generator Water 4/sta. gen. 2/sta. gen. 3/sta. gen. 1, 2 33*

Level High-High in any in each operating operating sim. gen. sim. gen.

5 c. Safety Injection See item 1. above for all Safety Injection initiating functions and requirements.

y O 6. Auxiliary Feedwater

a. Manual Initiation 3(1/ pump) 1/ pump 1/ pump 1, 2, 3 24

b. Automatic Actuation 2 1 2 1, 2, 3 34 Logic and Actuation Relays (SSPS)

c. Automatic Actuation 2 1 2 1, 2, 3 21 F Logic and Actuation

@ Relays.(BOP ESFAS) 3 d. Steam Generator Water Level Low-Low I

1) Start Motor-Driven Pumps 0 2/sta. gen. 3/sta. gen. I, 2, 3 33*, 35 m a) Steam Generator 4/sts. gen.

Water tevel tow- in any in each C tow (Adverse operating operating Containment sim. gen. sim. gen.

i Environment) ~

4.a .

TABLE 3.3-3 (Continued)

TABLE NOTATION

- Trip function may be blocked in this MODE below the P-!! (Pressurizer Pressure Interlock) Setpoint.-

1. Trip function automatically blocked above P-ll and may be blocked below P-ll when Safety injection on low steam line pressure is not blocked, fit Trip function may be blocked just before shutdown of the last operating main .

feedwater pump and restored just after the first main feedwater pump is put into service (following its startup trip test). i

The provisions of Specification 3.0.4 are not applicable.

- One in Separation Group 1 and one in Separation Group 4.

" The de-energization of one train of BOP ESFAS actuation logic and actuation relays renders two of the four channels inoperable. Action Statement 21 applies to both functional Units 6.c and 6.g in this case.

"**The provisions of Specification 3.0.4 are not applicable in Modes 5 and 6.

4 Only the shutdown portion of one sequencer is required to be OPERABLE in Modes 5 and 6 which corresponds to the OPERABLE Emergency Diesel Generator, v

. u Operability is only required for associated OPERABLE bus in Modes 5 and 6. -

h++ /eg/cMA domb.//

/1CFZ.S chonal M " "'""'"

Gntid }10STATEME

f h* PJ"*UC 4, pgMCT j- ,

err .,4 ACTION 14 - WitfiYhenu channels one less than the Minimum Channels OPERABLE requirement, be in at least HOT STANDBY within 12 '

hours 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, provided the other channel is OPERABLE.

ACTION 15 - With the number of OPERABLE channels one less than the Total Number of Channels, operation may proceed until performance of the next required ANANLOG CHANNEL OPERATIONAL TEST provided the inoperable channel is placed in the tripped condition within 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months .

ACTION 16 - 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 bypass condition 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- '

ACTION 17 - With less than the Minimum Channels OPERABLE requirement, operation may continue provided the containment purge supply and exhaust. valves are maintained closed.

T

) Amendment No, t.6,64,69,85

" CALLAWAY - UNIT 1 3/4 3-20 Correction letter of 1/6/94

l l

TABLE 3.3-3 (continued) '

ACTION STATEMENTS (continued) i ACTION 25 - With the number of OPERABLE channels one less than the Minimum Channels OPERABLE requirement, declare the affected diesel generator and off-site power source inoperable and take the ACTION required by Specification 3.8.1.1 or 3.8.1.2.

ACTION 26 -

With the number of OPERABLE channels one less than the Minimum Channels OPERABLE requirement, 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 initiate and maintain operation of the Control Room Emergency Ventilation System.

ACTION 27 - With the number of OPERABLE channels one less than the Minimum Channels OPERABLE requirement, be in at least HOT STANDBY within 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 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 provided the other channel is OPERABLE.

AGT10N-276 - "ith-the avm'urv vf-Gr d M LE-:h::::1: ::: .ees-then the T+t++

E;5er ef-Chan:1;, :;:retien :y prettet Th in;perebit chann:1 fe44: te : non-tr4p;;d-::nditionr-With the as.v.b;r f bel'Id- 02LRASLE :henneit one-leis then ihv11nimum channels urt.KAutE Tkts taquirementr-be-4n-at-least-HOT-STAND 9Y within-le-heur:. Onb p.," tuda-aay-be-pl+eed-in test for up to 4 hours4.62963e-5 days 0.00111 hours 6.613757e-6 weeks 1.522e-6 months ivr avi vei-14ence-t+et4*g p;r 5;;;ificet4ea 4.3.2.1 pruvided the ether trein is

% OPERABt.6-(NOTE: ACTION STATEMENTS 28 THROUGH 31 ARE LOCATED ON OTHER TABLES.)

i

)

CALLAWAY - UNIT 1 3/4 3-21 Amendment No. 64r85,117

TABLE 3.3-3 (Continued 1 o ACTION STATEMENTS (Continued) 3 ACTION 3? - With the number of OPERABLE channels one less than the Total Number of Channels, except for testing, STARTUP and/or POWER OPERATION may proceed for up to 72 hours8.333333e-4 days 0.02 hours 1.190476e-4 weeks 2.7396e-5 months 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 , and i b. The Minimum Channels OPERABLE requirement 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 j i

for surveillance testing of other channels per Specification 4.3.2.1.

Restore the inoperable channel to OPERABLE status within 72 l hours or be in at least HOT STAND 8Y 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 followirig 30 hours3.472222e-4 days 0.00833 hours 4.960317e-5 weeks 1.1415e-5 months .

With the number of OPERABLE channels one less than the Total Number of Channels due to testing of a channel, that channel may be tripped 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.

ACTION 33 - With the number of OPERABLE channels one less than the Total Number of Channels, STARTUP and/or POWER OPERATION may proceed i provided the following conditions are satisfied:

, s. The inoperable channel is placed in the tripped condition

- within 6. hours, and

b. The Minimum Channels OPERABLE requirement is met; however, i the inoperabic 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 of other channels per Specification 4.3.2.1.

ACTION 34 - With the number of OPERABLE channels one less than the Minimum Channels OPERABLE requirement, be in at least HOT STANDBY 4 witisin 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-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 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 provided the other channel is OPERABLE.

AC-TM 34. -

f 0*E** .' E cher..: 1: ::: 10:: th: the Tetal-t":r ;f Channels, ep ieties r.ey pre;;;d. Th; in;;;r:ble--

Ddd c.hannel-felle-ts ; ;;; tripp;d ;;;ditbn. With th; M :r-ef This ' r b.. _ S.," E D... .t'..nl'" mN'i . $5'E'N ' '

- . m o n m m n u ...... . _ +

pgfisw at least un7 suyTDOWN_within the in11owina 6 knurt. na= t 3 %.

may_bs-pl: M h test h r ;; to 4 hear; fer :;rv;il h n:; -

t::th; p;r Spe;ificetiec 4.3.2.1 prevised th. viher train -ir 4PERAlH;E'-

, A A ACTION 35 - With an inoperable delay timer in the Trip Time Delay circuitry, STARTUP and/or POWER OPERATION may proceed provided ,

that the Vesm1 AT (Power-1, Power-2) channels in the affected T protection sM s are placed in the tripped condition within 6

) hours.

CALLAWAY - UNIT 1 3/4 3-21(a) Amendment No. 4h44,117

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TABLE 4.J _2 fontInued) -

ENGINEERED SATETY FEATURES ACTUATION SYSTEN INSTRUNENTATION n SURVElttANCE REQUIREMENTS G 1 RIP E AMALOG ACTUATING N00E5 E CHANNEL DEVICE MASTER SLAVE FOR WHICN

' CHANNEL CHANNEL OPERATIONAL OPERATIONAL ACTUATION RELAY RELAY SURVEILLANCE C_AllBRATION TEST TEST LOGIC TEST TEST TEST 15 REQUIRED r E

FUNCTIONAL UNIT EHECK

[ 4. Steam Line Isolation M.A. N.A. N.A. R N.A. N.A. M.A. 1, 2, 3

a. Manual Initiation N.A.

M.A. M.A. N.A. N(1) N(1) Q 1, 2. 3 !

b. 1) Automatic Actuation Logic and Actuation Relays (55PS) ~

M.A. M.A. M.A. N.A. h g,g, 4 g 7. 3

2) Automatic Actuation g($ jy,A ,

togic and Actuation Relays (MSFIS) 5 R n M.A. N.A. M.A. M.A. 1, 2, 3 w c. Containment Pressure-

High-2 5 R Q N.A. M.A. N.A. M.A. 1, 2, 3

[ d. Steam line Pressure-tow

5 R Q N.A. M.A. N,A, N,g, 3 1 e. Steam Line Pressure-Negative Rate-High

5. Feedwater Isolation & Turbine Trip M.A. N.A. M.A. M.A. N(1) N(1) Q(3) I, 2 g

a. 1) Automatic Actuation logic and Actuation Relays (SSPS)

M.A. N.A. N.A. M.A. .#-A- N.A* n i n, ~ I. 2 <

t E

2) Automatic Actuation logic and Actuation gg ,r M.A.

Relays (MSFIS)

{ 5 R' Q N A- N.A. M.A. N.A. 1, 2 2 b. Steam Generator Water !

. Level-High-High Safety injection See Item 1. above for all Safety Injection Survelliance Requirements.

E c. i

6. Ausi1iary f cedwater N.A. N.A. M.A. R N.A. N,A, g A. I, 2, 3

~_.

a. Manual initiattun N.A. M.A. N.A. N(1) N(g) Q l* 2* 3

b. Automatic Actuation N.A.

Logic and Actuation .

Relays (SSPS)

-_ _ == . .. .. . _. - . _ . - _ _ .

6 ULNRC-03625 ATTACllMENT 2 SIGNIFICANT liAZARDS EVALUATION

-. - .. _ - - _ .= - - - .

ULNRC-03625 Attachment 2 Page 1 of 4 SIGNIFICANT HAZARDS EVALUATION INTRODUCTION This proposed amendment requests a revision to Technical Specification (TS) 3/4.3.2 " Engineered Safety Features Actuation System Instrumentation. Table 3.3-3, Functional Units 4.b 2 and 5.a.2 are revised by: 1) making the number of Main Steam and Feedwater Isolation System (MSFIS) channels (programmable logic controllers or PLCs) consistent with the requirements for the Solid State Protection System (SSPS), 2) the addition of the +++ note to the Total No. of Chanr.els and Minimum Channels Operable columns and to the Table Notation section, and 3) deleting Action Statements 27a and 34a.

These Action Statements are replaced with existing Action Statements 27 and 34.

Table 4.3-2, Functional Units 4.b and 5.a are revised by changing the slave relay quarterly surveillance to a quarterly actuation logic test for the MSFIS actuation and relays, initiated from the SSPS slave relays.

BACKGROUND The MSFIS consists of three redundant programmable logic controllers in each of two separate trains arranged in a two-out-of-three voting configuration for each train. Union Electric replaced existing fixed logic portions of the MSFIS with programmable digital processor equipment (Amendment #117 dated October 1, 1996). With that change, Functional Units 4.b.2 and 5.a.2 were added to the TS. The intent of the TS change was to add requirements for MSFIS similar to those of the SSPS.

The NRC staff reviewed the TS changes and determined that the actions were consistent with the previous Callaway TS and the Westinghouse Standard TS and concluded that there was no reduction in the level of protection from that which the existing TS provides. The previous TS actions were based upon the number of OPERABLE SSPS trains.

However, after implementing the changes, we determined that the nomeclature used in Table 3.3-3 (channel versus train) was misleading and confusing. In addition, the quarterly slave ~ relay surveillance added by Amendment #117 actually tests the PLC logic and is initiated from the SSPS slave relays. Therefore, these changes remove the confusion

. . l

. . . b ULNRC-03625 l Attachment 2 Page 2 of 4 ;

associated with the logic surveillance and the number of required operable channels.

PROPOSED CRANGES Table 3.3-3, Functional Units 4.b.2 and 5.a.2 are revised by:

1) making the number of MSFIS channels consistent with the requirements for the SSPS. These changes are required because the current TS require immediate entry into ,

Specification 3.0.3 with both of the required PLCs per train .

inoperable (be in Hot Standby within 7 hours8.101852e-5 days 0.00194 hours 1.157407e-5 weeks 2.6635e-6 months ). These changes are-acceptable because loss of one HSFIS train (all three PLCs) should be no more restrictive than the loss of one SSPS train. ;

2) the addition of the +++ note to the Total No. of Channels and Minimum Channels Operable columns and to the Table Notation section. This note is added to clarify that a minimum of two PLCs are required in each MSFIS train for OPERADILITY.

3) deleting Action Statements 27a and 34a. Action Statements 27a and 34a provide guidance in the event of an inoperable '

MSFIS channel (PLC). These ACTION Statements currently require action "with the number of OPERABLE channels one less i than the minimum number of channels", but no action exists if none of the required channels (PLCs) per train are OPERABLE.

These Action Statements are replaced with existing SSPS Action Statements 27 and 34. These changes are required because the current TS require immediate entry into Specification 3.0.3 with both of the required channels (PLCs) per train inoperable (be in Hot Standby within 7 hours8.101852e-5 days 0.00194 hours 1.157407e-5 weeks 2.6635e-6 months ).

Table 4.3-2, Functional Units 4.b and 5.a are revised by i

changing the slave relay quarterly surveillance to a quarterly actuation logic test for the MSFIS actuation and relays, initiated from the SSPS slave relays.

These changes are acceptable because they are consistent with the requirements of the SSPS. The loss of one MSFIS train

_( all three channels or PLCs) should be no more restrictive than the loss of one SSPS train.

, EVALUATION The proposed changes do not involve a significant hazards consideration because operation of Callaway Plant in accordance with these changes would not:

ULHRC-03625 Attachment 2 Page 3 of 4

1. Involve a significant increase in the probability or consequences of an accident previously evaluated.

The proposed changes to TS have no adverse impact on the probability of occurrence or the consequences of an accident.

The proposed amendment does not change or alter the design assumptions for the systems or components used to mitigate the consequences of an accident and the methodologies used in the accident analysis remain unchanged. The operating limits and the radiological consequences will not be changed. No design basis accidents will be affected by these changes.

The proposed changes do not result in any hardware changes.

Therefore, the proposed changes do not involve a significant increase in the probability or consequences of an accident previously evaluated.

2. Create the possibility of a new or different kind of '

accident from any previously evaluated.

The proposed changes do not involve a physical alteration of the plant (no new or different type of equipment will be installed) or changes in parameters governing normal plant operation. All design and performance criteria continue to be met and no new failure mechanisms have been identified.

The proposed changes do not affect the design or operation of any system or component in the plant. The. safety functions of the related structures, systems or components are not changed in any manner, nor is the reliability of any structure, system or component _ reduced. However, these changes are consistent with the requirements for the SSPS.

Since the safety functions and reliability are not adversely affected, the proposed changes do not create the possibility of a new or different kind of accident from any accident previously evaluated.

3.- Involve a significant reduction in a margin of safety.

The proposed changes will not affect or change a safety limit or affect plant operations. These changes will not reduce the margin of safety assumed in the accident analysis nor reduce any margin of safety as defined in the basis for any TS. The proposed changes do not affect the acceptance criteria for_any analyzed event. No setpoints are revised and the system response time will not be affected.

UL!JRC-03635 ,

Attachment 2 Page 4 of 4

{

Conclusion ,

Based upon the preceding information, it has been determined ,

that the proposed changes do not involve a significant ;

increase in the probability or consequences of an accident i previously evaluated, create the possibility of a new or !

different kind of accident from any accident previously i ovaluated, or involve a algnificant reduction in a margin of safety. Therefore it is concluded that the proposed changes meet the requirements of 10CFR50.92 (c) and do not involve a '-

significant hazards consideration.

W I

+

4 i

-k=

l

_A: .,

ULNRC-03625 ATTACllMENT 3 ENVIRONMENTAL CONSIDERATION

ULNRC-03625 Attachment 3 Page 1 of 1 ENVIRONMENTAL CONSIDERATION This proposed amendment requests a revision to Technical Specification (TS) 3/4.3.2 " Engineered Safety Features Actuation System Instrumentation. Table 3.3-3, Functional Units 4.b.2 and 5.a.2 are revised by: 1) making the number of Main Steam and Feedwater Isolation System (MSFIS) channels (programmable logic controllers or PLCs) consistent with the requirements for the Solid State Protection System (SSPS), 2) the addition of the +++ note to the Total No. of Channels and Minimum Channels Operable columns and to the Table Notation section, and 3) deleting Action Statements 27a and 34a.

These Action Statements are replaced with existing Action Statements 27 and 34.

Table 4.3-2, Functional Units 4.b and 5.a are revised by changing the slave relay quarterly surveillance to a quarterly actuation logic test for the MSFIS actuation and relays, initiated from the SSPS clave relays.

The proposed amendment involves changes with respect to the use of facility components located within the restricted area, as defined in 10 CFR 20. Union Electric has determined that the proposed amendment does not involve:

(1) A significant hazard consideration, as discussed in Attachment 2 of this amendment application; (2) A significant change in the types or significant increase in the amounts of any effluents that may be released offsite; (3) A significant increase in individual or cumulative occupational radiation exposure.

Accordingly, the proposed amendment meets the eligibility criteria for categorical exclusion set forth in 10 CFR 51.22 (c) (9) . Pursuant to 10 CPR 51.22 (b), no environmental impact statement or enviromental assessment need be prepared in connection with the issuance of this amendment.

ML20217H803

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