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KR0101243 KAERI/TR-1680/2000 A Study on Maintenance Rule Program and Its Application at Korean NPP Rev.O

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Page 1: A Study on Maintenance Rule Program and Its Application at … · 2005. 1. 17. · S. 2 Delphi ^r ^ 31 20 S 3 Minimal Cutsets for Sum of All Core Damage Sequences o}| 22 3. 4 RRW

KR0101243

KAERI/TR-1680/2000

A Study on Maintenance Rule Program

and Its Application at Korean NPP

Rev.O

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PLEASE BE AWARE THATALL OF THE MISSING PAGES IN THIS DOCUMENT

WERE ORIGINALLY BLANK

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2000

: 2000. 11

_. T _

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| * j # o ^ (Rev.o)

9«RS(Maintenance Rule : 10 CFR 50.65)[1]s|

(Technical

Specification)^!M 3.?^ §)-SSx|A|^(Allowed Outage Time ; AOT), 7|-i-#

A|a(ln-Service Test ; 1ST) i ! 7 ( - l§ ^ (In-Service Inspection ; ISO T ? I #

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s| PSA 3 ^ ££-& ^ y a | e i PSA

3,]o|| cut!- °iip.m t!-^a

0|§S- °\A\

- II -

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#o|

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- Ill

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V. g^HiJ- m^[s\ #•§•

A|

(Traditional Deterministic Regulation; TDR)7[- ^?lp|$A|-:n.(Design Basis

Accident; DBA)o|| u ^ # *rJL S i c ^ , AJS|£ § a o|§ flxil (Reliability

Informed Regulation; RIR)fe 2rl-i=*j£!-£1 £3 g (Probabilistic Safety

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SUMMARY

I. Project Title

A Study on Maintenance Rule Program and Its Application at Korean NPP

II. Objective and Requirement of the Project

The objective of the project is to understand the effectiveness and the

application method of the Maintenance Rule, which is one of the

performance-based regulations and to propose the effective maintenance and

regulation method.

We expect the safety of a plant can be improved because the performance of

an effective maintenance will reduce the failures of the safety-related systems

due to the improvement of reliability, availability and operability for

safety-related components. Also, the number of the transients will be

decreased. That is, appropriate maintenance is essential to keep the safety of

a plant. Therefore, we began on the research about the Maintenance rule.

Maintenance Rule requires monitoring of the overall continuing effectiveness of

licensee maintenance programs. It ensures that safety-related and certain

nonsafety-related SSCs(Structures, Systems and Components) are capable of

performing their intended functions. Also, for nonsafety-related equipment, it

ensures that their failures, which prevent the fulfillment of safety-related

functions will not occur. Failures resulting in scrams and unnecessary

actuation of safety-related systems are minimized.

Traditional Deterministic Regulation(TDR) is based on the Design Basis

Accident (DBA); on the other hand, the reliability informed regulation is based

on the probabilistic safety assessment. However, reliability informed regulation

would accompany with the risk. To prevent those risks, it needs the support

of the performance-based regulation one of which is Maintenance Rule.

Moreover, the result of the performance-based regulation can support the

plant life extension.

III. Scope and Contents of Project

- v -

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The Maintenance Rule has been implemented officially since 1996 in the USA.

Therefore, we survey the Maintenance Rule program and applications

performed in the USA, and also develop a Maintenance Rule program to

apply to Korean Nuclear Power Plants. In addition, we applied the

Maintenance Rule Program to the two pilot systems of Ulchin 3,4 Units

roughly with the Maintenance Rule Program developed in this project.

IV. Results of the Project

We developed the maintenance Rule application Program that is available to

apply to Korean NPPs. Also, we reviewed the feasibility of Maintenance Rule

application on Korean nuclear power plants through the application process for

the pilot systems.

However, we could not catch the effectiveness of Maintenance Rule

performance in direct with the result from the only two pilot systems'

application. But we came to the decision that the Maintenance Rule is

necessary to perform the Risk Based Regulation because the RIR can bring

the reduction of the safety on plant.

And, the side effects of the Maintenance Rule performance is the data

collected for the maintenance rule program application. These data can

support the plant life extension and can be used for reliability informed

regulation.

That is, Reg. Guide 1.174[13] requires the element monitoring as the

requirement of the RIR. The maintenance rule is just the element monitoring.

Also, it is expected that the maintenance rule can help to regulate effectively

through the unified regulation method.

V. Proposal for Applications

We prospect to support the regulatory body and the licensee with the

Maintenance Rule Program developed in this project.

- VI -

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2

n. §j i

syiv.v. •s-^tm a^°i #§TIISI vi

SUMMARY V

I. Project Title V

II. Objective and Requirement of the Project V

III. Scope and Contents of Project V

IV. Results of the Project VI

V. Proposal for Applications VI

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- VII -

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- VIII -

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- 5 -

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- 13 -

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ssc§•*! aHAi(Final Safety Analysis Report ; FSAR)oi|Ai §°|sl-3. Si

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- 14 -

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Reactor coolantsystemChemical volumeand control system

- Electric powersystem (AC,DC)

mum.31 fe

- Pressurlzer- PORVs- Steam generators

- Main feedwater system- Steam generators- Turbine- Main steam system

- Instrument air

- Containmentspray system

- Fan coolers~ Isolation

valves- Supporting

Equipment

- Injectlon/reclrculatlon/ - Main feedwatershutdown (I.e.. ECCS) - Auxiliary feedwaler

- Containment - Supporting equipment - Steam generatorbuilding (e.g., service water, - Steam dumps

component coolingwater, ESFAS,electric power, disseigenerators, instrumentair)

* Deviations from which result in accident initiation and safety challenges

- Circulating water system- Component cooling

water system- Service water system- Main condensor

SSC

15 -

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EOP SXKHIAH S H S J I J D U I g

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- 16 -

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2. ^ § £ 0 | | n|*|-^ S°j=o| & SSC

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PSAS^I- SEfe # 2 . ehS?|-^^1 -g-Ccritical safety function system)£| £-s- S £ ^ # #

§1-01 aSthciK

PSAi-|- IPE f- t i S SSCOII msH-M-b 7|7|S § ^ ! 2 S in-feJ^^ei5E(Core Damage

Frequency ; CDF), RRW(Risk Reduction Worth), RAW(Risk Achievement Worth)* @?moi o| §• em

NUMARC 93-01 [2,5]0l|Ai x||A|§|.^. g,^0|cK 0|

fi|o)t£ 27|cHlf-tp#u!£(Large Early Release-Frequency ; LERF) &§\O\\ ^ ®]-§-W

^ X i ^ 7 | 5 # SSK>I 0| 7|^S| 22M^Oll tt|-S|. -g~R-«D£. @CK

•& 7|# MIlAiollAi^ 7|# 7||a-s| ^ $ o S ERAW(Effective RAW) & Q # A^shoj Til

IPE &M CH^O| o)-t! SSColl c

ISHS, Delphi ihS # s l § £ * 1 §7F g ^ g f o|

hcK o| [C

Safety Analysis Report ; FSAR)s| -^

hfe 4=^ 7|7|(Passive equipment)^

oil D|*|fe SS0| s 5!^.^ 2.^©cK ^ , PSA

7|7|# d S ^ P I fl«HA

flaaoii D | * I^ gg=oi ^ ssc,SSC,7|7|,

fe SSC,^ 7|7|

B SSC

- 17 -

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Cp|£o| 7|7|

4JIWFSARa^Afltoii ¥1»J

Sfe t£K

ys7|7i

SSgo] 7|7|

2 a 2 £ °lst|

BOP 7I[£7| 7|

ej{i7|7|s)

713&4I S5a|s^7^^ a ^ i

fiS5(IS7|7|

11

?ltl £011 o|*lfeS§o|

T § ?|7| .

2i£Aia A|OII

FSARei ns

^o7|gg

£57i|S7|7|

Standby I Operating : Passive

°l*lrr AjEH

- 18 "

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7\. Delphi ^7F

Delphi 7 | g e Helmed Gordon^] s|«fl 7HSJ-S HJS

0| gj-^e PSA ££^ IPE

Delphi S 7 H ?|§HAi^ °jxi, ^^\±°.\ o^g 7 |-^# z i s^M A p A| &}^§

7|-^ §yo| nfl,

^t[7\ $\t$M 7|-#x|(weighting factor)cH| S§x|(scale value)*

0| §7|- «hSS| O |fe S 2S\ 7AZ-\. 0^|0||Ait Afi A|

m Delphi S7|-7|- SSt!- H-& § u | ^ S ^ § CH J- SSColt

- 19 -

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2. Delphi oj|

A^Ol| CHS- UJ-S1.Required to shutdown reactor and maintain in safe

shutdown condition2.Required to maintain fuel cladding and/ or the

reactor coolant pressure boundary3.Required to remove atmospheric heat and

radioactivity4.Required to remove heat from the reactorAccident Response TotalAccident Response Total x 3(additional emphasis)

1 .Required to provide primary side heat removal2.Required to power conversion3.Required for primary, secondary, or containment4.Required to provide cooling water, component or

room5.Required to provide electric power (AC, DC power)6.Required to provide other motive or control

powerOnstrument air)Normal Operations Total?rS*l i f = (MH em Ir x 3) + (3&SS fttNRV ratio(aS ?lij£.*l «ls )= Pr§*l § f x 10) / 1128(tJ|eil*l)

7h#*l

4.0*

6.7*

7.3*

9.0*2781

4.7*7.7*4.7*4.3*

6.7*3.7*

31.8112.8

1

Scale

(1-10)

8*

7*

6*

9*

8*8*6*7*

6*5*

"4. PSA 2 f #

SSC

Sl'bGI, NUMARC 93-01 o||Ai JH|A|S|-IJ ° i ^ | g £ g^± 7^|(Risk Reduction Worth ;

RRW), £ IU£ ^ - ^ 7r*l(Risk Achievement Worth ; RAW) na|3. in-fej^^j-u|JE(Core

Damage Frequency ; CDF)« o | # S ^ S^rSrfe ^Ho | cHasjo|cK HB-ju^ o|# § 2

ERAW(Effective Risk

s| 2&«rf§ RAW aAchievement Worth) gj-a#

- 20 -

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(D

£ SSO| S SSC

K o|

h. o| aH, PSA a i

, DG(Diesel Generator), ^ F g ^ l S ^

O|OH, 715

ssc

Oil a|*|fe SISO| a-

o||S MS, ohEH a 3O||Aife ipa| i

90%?r s|fe

o|2|- as B iS°s si^EiSSfM- assw ?IS£o)| D|*| . sso| & ssc

- 21 -

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s. 3.

No.12345678910

*

Mean8.820e-074.329e-073.780e-072.660e-072.520e-072.070e-071.989e-071.649e-071.590e-071.590e-07

*

FV0.10790.05300.04630.03250.03080.02530.02430.02020.01940.0194

*

Cumulative0.10790.16090.20710.23970.27050.29590.32020.34040.35980.3793

Cut SetsHSMVW67576 ISLNR-AC11HR ISBOHSMVWGHDR MXOPHDPLI ISGTRIRVRHSMVWGHDR MXOPHDPLI ISLMTC IATWSFSSKZSIAS ILLFSOPHBISIAS ILLHSOPHHLCLR ILLHSOPHHLCLR IML

(2) RRW

NUMARC 93-01 [5]oi| cch=ei, R R W «

fe ?ll?J-4;#2.£(Risk reduction importance)7\

^.(cumulative risk reduction importance)^

. §2.

§mfe RRW r

RRWS , 0|

Z| 7|7|0|| C«

$£r y g £ S PSA

RRW7|- 1.005 O|

fe RRW

- 22 -

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3. 4.

EventHSMVW67576HSMVWGHDRNR-AC11HRHSMPW00102HCCQKCCPAFCVW104849HSMPK00102MFMPM07PFSSKZSISASAFTPS01BAAFTPWO1B2AAFCVW1007AB8ABAFCVW1003AB4ABAFCVW 1012 AB 4 ABHCCQWHPPHSSPPSUMP

:

mean2.94E-042.40E-043.90E-028.90E-052.40E-052.08E-068.52E-052.64E-021.17E-031.50E-021.20E-031.68E-061.68E-061.68E-066.00E-055.00E-05

i

rrw1.13561.08391.05541.03341.03281.03241.03191.02991.02781.02741.02551.02551.02551.02551.02231.0207

(3) R A W *

RAW

o| RRW«

^ s 5fe RAW

31

RAW g a

- 23 -

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3. 5. RAW f 2 £ o||

EVENT

AFCVW104849

AFCVW1007AB8AB

AFCVW10 0 3 AB 4 AB

AFCVW1012AB4AB

EDBYW125DC

AFPTK005678

HCCQKCCP

EDBSYDC01B

HSCVWG540123

HSCVWG212347

CVTKBRWTOO

CVCVW30506

HSMVW67576

HSSPPSUMP

HSCVW20506

HSMPW00102

HSMPK00102

HCCQWHPP

HCCQKHPP

HSCVW4 04 05

HSCVW42426

HSMVWGHDR

HSCVWG112343

AFCVW1012B4AB

AFCVW1007B8AB

MEAN

2.08E-06

1.68E-06

1.68E-06

1.68E-06

3.84E-06

2.64E-06

2.40E-05

4.80E-06

1.68E-06

1.68E-06

2.40E-06

2.08E-06

2.94E-04

5.00E-05

2.08E-06

8.90E-05

8.52E-05

6.00E-05

2.40E-05

2.08E-06

2.08E-06

2.40E-04

1.68E-06

1.87E-06

1.87E-06

RAW15069.8678

14804.33

14804.33

14804.33

4712.1089

1474.7272

1325.4577

1077.8596

1055.1975

1055.1975

954.7738

952.9386

406.7416

406.9675

406.0106

364.362364.3073

364.1145

363.6757

361.7929

341.1786

323.5703

320.5644

192.5216

192.5216

:

(4) Effective RAW»

RAW ssc»

SSCOil b|

1 ^ RAW

, RAW

7-lsl-oi

^Hrfe Effective RAW

|(w) (weld inspection importance measure)[10]£r

E. s|£(risk measure)

li(w) = PiX lite)

i°| u[0\E.

o||7r

- 24 -

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Effective RAW(ERAW)

ERAWi =

^ s - 7|7|

7| B7^ Di -E RAWgi* 5>*|e} 7|7| J i g S H S 5§Wl S|S US- S[#0| ^ S 7 |7 | A

S| ERAW SOI Dj ?H§ ^ SicK o||* #0 j , 7|7| A2h BS| Hg«|-#-i- 2|4 P(A)#

0.01, P(B)» 0.001O|B^ 7|-S§m, O| nj|S| RAW* 4 ^ 1, 2B^ t[°i ERAWfe

0.00271- £|CH RAW» U|H§H M OH, BS|

A2j ao| Ci 3 ^ . ZlB-iH^. ERAW«

SSC» d S S f e S0| § u | f l § ^ ! # « fl«H-Hfe

3,4S7|°| PSA H i ^l#o)| c(|5|-a| ERAW2|- RAWOll

-g S 6O||A-| 2i 7 |^A^o i | cut!- ERAWS|- RAW

- 25 -

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S. 6. RAW&F ERAW a 110.

EVENT

NR-HSMV-HL

NR-AC6HR

HSMVW67576

MSCKZTBV

NR-AC11HR

HSMVWGHDR

EGDGR01E

EGDGR01B

EGDGR01A

MFMPM07P

AFTPS01BA

MSSVZRESEAT

HSMPW00102

AFTPS02AB

HCCQKCCP

AFCVW104849

HSMPK00102

EGDGM01E

FSSKZSIASAFTPW01 B2AAFTPW1 007AB8AB

AFTPW1003AB4AB

AFTPW1012AB4AB

HCCQWHPP

HSSPPSUMP

IAACSCM02B

MEAN

1.90E-01

1.40E-01

2.94E-04

1.00E-01

3.90E-02

2.40E-04

5.76E-02

5.76E-02

5.76E-02

2.64E-02

1.50E-02

4.00E-02

8.90E-05

1.50E-02

2.40E-05

2.08E-06

8.52E-05

2.78E-02

1.17E-031.20E-031.68E-06

1.68E-06

1.68E-06

6.00E-05

5.00E-05

2.00E-02

RAW

1.0422

1.0878

406.9675

1.0163

2.2935

323.5703

1.0252

1.0206

1.0201

2.0708

2.7513

1.0001

364.362

2.1362

1325.4577

15069.8678

364.3073

1.022

24.120121.676914804.33

14804.33

14804.33

364.1145

406.7416

1.0009

ERAW

1.98E-01

1.52E-01

1.20E-01

1.02E-01

8.94E-02

7.77E-02

5.91 E-02

5.88E-02

5.88E-02

5.47E-02

4.13E-02

4.00E-02

3.24E-02

3.20E-02

3.18E-02

3.13E-02

3.10E-02

2.84E-02

2.82E-022.60E-022.49E-02

2.49E-02

2.49E-02

2.18E-02

2.03E-02

2.00E-02

- 26 -

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3 .

SSC

S o |g£ (availability)^

(reliability)O|cK flS£ol| a|s|fe ggo | & SSC2|- flS£ol| n|*|fe g®0| *|-& SSC

g CH7|^E||O|| SJ^ SSColl q fHAi ^ ?j|# ££^ 7|^o|| c\\m *)# 7tea- o |§M^£si- ssc ? te -yn« ^=^ 11^21 -y^7|$# -y§&cK 01 cm, n^° i A H ^ I ^ -

oil ^ ^ A i ^

S t ^ £ Si K ^ a , ?iato)| D|x|fe g§o| ^ ^ SSC-^1, a s & S^OIIEJ- SSC 7teo|

foil,

PSAOl|Ai

b | j a § ^ !S t [cK o| an,of Service Time ; OOS Time)* gj-§|-oi ^ A | 7|z]-o^ \J^o\

^§(.j) o| AJ^.7 |$0| *|S 7 teCDF §

- 27 -

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7|7|s| 0|§M^ol[ uJtm flSS. 7|tt|fe. i.0e-6S5. fllt^K ^ , i.0e-8O|S(-B

^ 3|o|EIs|

ZIB|L.|.

-ycH#(demand-based failure rate)^

(demand & time-based) -^EHftS ^ ^ - m AIZ} 7|g(time-based) -ysHfe- Poisson £ s ^ « O|#§Foi §|a y[^tl Un ^ » f

7 | s o^ i - ^ |PE dioiEj DC^ 7j.A|(surveillances)

Poisson

Poisson

x=0

- 28 -

Page 42: A Study on Maintenance Rule Program and Its Application at … · 2005. 1. 17. · S. 2 Delphi ^r ^ 31 20 S 3 Minimal Cutsets for Sum of All Core Damage Sequences o}| 22 3. 4 RRW

P(r)O| 1O%(5E& 5%)0|^0|olot Sf2, S ^ S SS#(false alarm rate)

95%) O|&# t ^ S f e r

alarm)o)| 2|

=H# (fail to start) 4!sH#o| qi-^-g- 0.01 SJEO|cK ZLS-JHS 7|-go||si ioo%oii 71-a-ji, ois-sus-s <^# O I # § M 3I&SFS i y i & y- s u s 5% MI

x| 15%, aa | j i 2ei i S - y- Sf-lS 0.1%

oi CK

(Reliability performance criteria)^! g ^ , NUMARCO||Ai § b | » #3|

7|-s- jlS"(maintenance preventable functional failures : MPFFs)£M-

oi mi, 7 |^

NUMARC 93-01 [5]o||Ai^ >g&± ^°\ ^ ^ 7 | § # 7000 1 #o||7|*| S:7j| #^(capability)# £

St

PLG[33]o||Ai *||ehS|ai a l t ^ 3 ^ ^ g s | AH^

- 29 -

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s. 7.

£!£E(Non-risk

;ensitive reactor trip

frequency)

PSA results indicate a

>90% confidence of

meeting and risk levels

kept within 5% of baseline

value

Tr-ft!- ej£(Risk-sensitive

nitiator frequency)

Zero events/3-year

PSA results indicate a

>90% confidence of

meeting could have large

isk impact and likely NRC

concerns

Zero events/3-year

PSA results indicate a

>90% confidence of

meeting could have large

risk impact and likely NRC

concernsRunning average unplanned

capacity loss factorNo more than a 10%

increase in cumulative

annual core damage prob.

or 1yr running average

CDF

Uncertainties in PSA results

preclude more accurate

estimates; NRC reluctance

to accept greater increase

ltd LERF

No more than a 50%

increase in the cumulative

annual large early reliance

frequency or 1 yr running

average LERF

Uncertainties in PSA results

preclude more accurate

estimates; NRC reluctance

to accept greater increase

Zero events/3-year

Should not occur with

three train design and

increased sensitivity to

NRC concerns

- 30 -

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4. £fe7|§ Ho\s\ SS ^(Balancing)

§ <M 0|

o|7|

o||s zj-^Sl- n£HH» #«H - SSH MS, f^m^ S-oi i f i t ^ SJCK Ps ^ , pp# ?j|a|g Sd|oi| o|§H 7 | ^ ^ s s

^ t % t , P,S MA|o)| 7 | ^ 4=S« S l f «|-#o|5|- s ^ , P = PP + Pf s HSSc:F. P,

Pp, Prb IPE ^O||Ai ° j ^ E | ^ 7 | £ A^Oll CH#H|fe ^#SJtO|CK ££ US §U| 0 |§M-^

S ^ , P= U

, P= PP + Pr(Pp)O|cK 0i7|Ai, pp0||

dPf / dPp = 0 | )

M, Pf y\ s|

C4|A-| S^ojSh 4= oJcK X\*\!E: P= Pp OJS 2|O|°fCh ?!M2F ^ - t d ^ ° | ^0|7|- P,

o| ziBHHo||Ai ^ ^ ° j ^ d ^ go | ps| s i^Sioi p f°|

0|£|- 1*01 ^ ^ - 7 | ^ ^ § A|

- 31 -

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p=pp+pf

P=Pr

6.

- 32

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5. £i=r

o| gfe

fe£ 51 7| -

si

^^(Trigger)^«1 2

, 0 | \SHB\

0|

Sf

, O| tt«°| § U | O|

& 0,1,2,3,4

0,1,2,3,4^

7|

- 33 -

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o.95Si 50S|

0123456

7II- 2.7- ^ = 2035.8%37.7%18.8%5.95%1.33%

7\% a ^ ^ = 507.69%20.3%26.1%22.0%13.6%6.58%2.60%

S0|| AH 71

2=1

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3O| o| o|a.

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1. 2§

2. -S- 1

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a ^ ois1. 2&?2 . 3|-7H: -k

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3. H&SH|O|^ §7^

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6. gslaf ois

- 34 -

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SSC £}§« SIS" 7\& SJ*]S *l|1go||Ai fl|A|s- SSC

SS 3,42?l S|#2l-a^M-^ MiAi(Final Safety Analysis Report;

FSAR)[18], u|4rS£l ^*W(Emergency Operating Procedure; EOP)[19], * 5 ! 3,4S

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-, o|

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s i t ! - H-E ?ll#

psAOllAi iB|©hx| stS uIin-y(non-core)O^S ^B |L[ gJ-A^ E||7|

^^(containment failure)

- 35 -

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Page 75: A Study on Maintenance Rule Program and Its Application at … · 2005. 1. 17. · S. 2 Delphi ^r ^ 31 20 S 3 Minimal Cutsets for Sum of All Core Damage Sequences o}| 22 3. 4 RRW

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Page 76: A Study on Maintenance Rule Program and Its Application at … · 2005. 1. 17. · S. 2 Delphi ^r ^ 31 20 S 3 Minimal Cutsets for Sum of All Core Damage Sequences o}| 22 3. 4 RRW

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Page 77: A Study on Maintenance Rule Program and Its Application at … · 2005. 1. 17. · S. 2 Delphi ^r ^ 31 20 S 3 Minimal Cutsets for Sum of All Core Damage Sequences o}| 22 3. 4 RRW

S. 11. 3,4 (1/3)

Prob. FV Cutsets

8.820e-07

4.329e-07

3.780e-07

2.660e-07

2.520e-07

2.070e-07

1.989e-07

1.649e-07

1.590e-07

1.590e-07

1.531e-07

1.500e-07

1.464e-07

1.402e-07

1.342e-07

1.236e-07

1.236e-07

1.236e-07

1.080e-07

1.004e-07

9.854e-08

9.450e-08

9.345e-08

9.040e-08

8.946e-08

7.803e-08

7.803e-08

7.200e-08

6.300e-08

4.998e-08

4.998e-08

4.959e-08

4.845e-08

4.800e-08

4.641 e-08

4.454e-08

4.454e-08

4.380e-08

3.780e-08

3.416e-08

3.416e-08

0.1079

0.0530

0.0463

0.0325

0.0308

0.0253

0.0243

0.0202

0.0194

0.0194

0.0187

0.0184

0.0179

0.0172

0.0164

0.0151

0.0151

0.0151

0.0132

0.0123

0.0121

0.0116

0.0114

0.0111

0.0109

0.0095

0.0095

0.0088

0.0077

0.0061

0.0061

0.0061

0.0059

0.0059

0.0057

0.0055

0.0055

0.0054

0.0046

0.0042

0.0042

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0.1609 NR-AC11HR ISBO

0.2071 HSMVWGHDR MXOPHDPLI ISGTR

0.2397 IRVR

0.2705 HSMVWGHDR MXOPHDPLI ISL

0.2959 MTC IATWS

0.3202 FSSKZSIAS ILL

0.3404 FSOPHBISIAS ILL

0.3598 HSOPHHLCLR ILL

0.3793 HSOPHHLCLR IML

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0.4514 HSMPW00102 MXOPHDPLI ISGTR0.4678 HSMPK00102 MXOPHDPLI ISGTR

0.4830 AFCVW1007AB8AB SDOPHEARLY ILOFW0.4981 AFCVW1012AB4AB SDOPHEARLY ILOFW0.5132 AFCVW1003AB4AB SDOPHEARLY ILOFW0.5264 HCCQKCCP ISGTR0.5387 MXOPHEBOR IATWS

0.5508 AFOPHALTWT SCOPHSDCOP ILOFW SDOPHLATE-HD1

0.5623 HCCQWHPP MXOPHDPLI ISGTR

0.5738 HSMPW00102 MXOPHDPLI ISL0.5848 AFOPHALTWT ILOFW SDOPHLATE-HD1 MSOPHSR-T0.5958 HSMPK00102 MXOPHDPLI ISL0.6053 CSMPWCSSP ILL0.6149 CSMPWCSSP IML0.6237 HCCQKCCP ISL0.6314 HCCQWHPP MXOPHDPLI ISL0.6375 HSMVW67576 ILL0.6436 HSMVW67576 IML0.6497 AFTPW01B2A EGDGK01ABET ILOOP NR-AC6HR0.6556 LSMVWD61245T ILL

0.6615 HSMVO0675A HSMVO0676B ISL0.6672 HSMVWHHDR IML0.6726 HSMVWDHDR ILL0.6781 HSMVWDHDR IML0.6834 AFCVO1049B SDOPHEARLY ILSSB0.6881 HCCQKHPP MXOPHDPLI ISGTR0.6922 AFOPHALTWT SCMVW65152 ILOFW SDOPHLATE-HD10.6964 AFOPHALTWT SCMVW65354 ILOFW SDOPHLATE-HD1

- 65 -

Page 78: A Study on Maintenance Rule Program and Its Application at … · 2005. 1. 17. · S. 2 Delphi ^r ^ 31 20 S 3 Minimal Cutsets for Sum of All Core Damage Sequences o}| 22 3. 4 RRW

11. 3,4 : 3,4 : (2/3)

Prob. FV Cutsets

3,,277e-083.075e-08

222

222

22

22

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1

1

111

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,405e-08.326e-08.312e-08

,015e-08

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.868e-08

.754e-08

.699e-08

.548e-08

,513e-08

,513e-08,508e-08.508e-08

.508e-08

.452e-08

.448e-08

.448e-08,421e-08

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.343e-08

.340e-08

.274e-08

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AFCVW1003AB4AB MFOPHSUFWP ITRSN SDOPHEARLY-HD2HCCQKHPP MXOPHDPLI ISLAFMPW01A2B AFTPW01B2A SDOPHEARLY ILOFW

AFCVW104849 MFMPM07P SDOPHEARLY ITRSNAFTPS01BA AFMPS02BB SDOPHEARLY ILODCLSMPWLPSIP ILLHCOPVCQHPPA HCSKWHPP MXOPHDPLI ISGTRHCOPVCQHPPB-HD

AFTPS01BA HCCQMAFMP2B SDOPHEARLY ILODCAFPTK005678 SDOPHEARLY ILOFW NR-AFIKAFCVW1003AB4AB MFMPM07P SDOPHEARLY ITRSNAFCVW1007AB8AB MFMPM07P SDOPHEARLY ITRSNAFCVW1012AB4AB MFMPM07P SDOPHEARLY ITRSNCSMPKCSSP ILLCSMPKCSSP IMLAFCVW104849 SDOPHEARLY ILOOPAFOPHALTWT HCCQKCCP ILOFWEDBSYDC01B ILODC

AFOPHALTWT MFMPM07P SCOPHSDCOP ITRSNDOPHLATE-HD1HSMPW00102 IMLHSMPW00102 ILLAFCVW1012AB4AB SDOPHEARLY ILOOPAFCVW1003AB4AB SDOPHEARLY ILOOP

AFCVW1007AB8AB SDOPHEARLY ILOOPAFTPW01B2A HCCQKCCP ILOFWHSMPK00102 IMLHSMPK00102 ILLAFOPHALTWT MFMPM07P ITRSN SDOPHLATE-HD1MSOPHSR-T

AFTPS01BA AFMPM02BB SDOPHEARLY ILODCHCOPVCQHPPA HCSKWHPP MXOPHDPLI ISLHCOPVCQHPPB-HD

AFTPR01BA AFMPR02BB SDOPHEARLY ILODCAFTPS01BA HCCQRCCPB ILODCAFOPHALTWT SCOPHSDCOP ILOOP SDOPHLATE-HD1

- 66 -

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3. 11. IS 3,4 : 3,4 (3/3)

Prob. FV Cutsets

1.183e-081.116G-081.103e-081.102e-081.080e-081.039e-08

1.020e-081.020e-081.020e-081.020e-081.020e-089.855e-099.846e-099.496e-099.496e-099.496e-099.496e-099.496e-099.496e-099.496e-099.496e-099.496e-09

0.00140.00140.00130.00130.00130.0013

0.00120.00120.00120.00120.00120.00120.00120.00120.00120.00120.00120.00120.00120.00120.00120.0012

0.78510.78650.78780.78920.79050.7918

0.79300.79430.79550.79680.79800.79920.80040.80160.80270.80390.80510.80620.80740.80850.80970.8109

AFTPS02AB AFMPR02BB SDOPHEARLY ILSSB.AFTPR01BA AFMPS02BB SDOPHEARLY ILODC

AFOPHALTWT ILOOP SDOPHLATE-HD1 MSOPHSR-TAFTPS02AB EDBSYDC01B ILOCCWCVTKBRWT00 ISGTR

MSCKZTBV MSSVWMSSVALLM ITRSNSDOPHEARLY-HD1T MSOPHSR-THCCQWHPP ILLHCCQWHPP IMLHCCQWCSP ILLHCCQWLPP ILL

HCCQWCSP IML

AFTPS02AB AFMPS02BB SDOPHEARLY ILSSBFSOPVSIAS FSSKZSIAS ISGTR

CSMVW3536 ILL NR-CSMVCCMVWCSHX IML NR-CSMVHSMVW32131 IML NR-HSMV-HL

CSMVW3536 IML NR-CSMVHSMVW60304 ILL NR-HSMV-HLHSMVW69899 IML NR-HSMV-HLHSMVW60304 IML NR-HSMV-HLHSMVW32131 ILL NR-HSMV-HLCCMVWCSHX ILL NR-CSMV

- 67 -

Page 80: A Study on Maintenance Rule Program and Its Application at … · 2005. 1. 17. · S. 2 Delphi ^r ^ 31 20 S 3 Minimal Cutsets for Sum of All Core Damage Sequences o}| 22 3. 4 RRW

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S 13. 3,4 3,4 (RAW)

Event

123456789

1011121314151617181920212223242526272829303132333435363738394041424344454647484950

ISLMXOPHDPLISDOPHEARLYISGTRILOFWILLHSMVW67576HSMVWGHDRIMLAFOPHALTWTISBOSDOPHLATE-HD1NR-AC11HRILOOPITRSNHSOPHHLCLRILODCIATWSHSMPW00102IRVRHCCQKCCPHSMPK00102AFCVW104849MFMPM07PFSSKZSIASAFTPS01BAMTCMFOPHSUFWPAFTPW01B2ASDOPHEARLY-HD2AFCVW1003AB4ABAFCVW1007AB8ABAFCVW1012AB4ABFSOPHBISIASHCCQWHPPNR-AC1HRHSSPPSUMPCSMPWCSSPEDBYW125DCILSSBAFTPS02ABMSOPHSR-TSCOPHSDCOPILOCCWNR-AC6HREGDGK01ABETAFMPR02BBAFTPR01BAMXOPHEBORAFMPS02BB

Mean

3.000e-033.500e-011.460e-014.500e-035.040e-011.700e-042.940e-042.400e-041.7006-041.450e-031.110e-051.590e-013.900e-026.150e-023.000e+009.350e-043.540e-032.070e-058.900e-052.660e-072.400e-058.520e-052.080e-062.640e-021.170e-031.500e-021.000e-021.300e-021.200e-034.040e-011.6806-061.680e-061.680e-069.700e-046.000e-056.200e-015.000e-054.590e-043.840e-061.500e-031.500e-027.780e-048.480e-041.530e-011.400e-014.800e-033.600e-037.200e-034.850e-033.000e-03

FV

0.22740.19100.15760.13900.12990.12810.12050.07810.07740.06340.05870.05760.05300.04850.04390.03890.03880.03860.03260.03250.03160.03120.03040.02950.02730.02670.02530.02470.02450.02420.02410.02410.02410.02270.02200.02140.02050.01920.01830.01790.01720.01720.01670.01530.01440.01430.01400.01250.01230.0116

RAW

76.57661.35481.922131.75621.1279754.3930410.6014326.4229456.403044.68765292.55081.30482.30521.74060.970742.564211.92691864.2644367.6136122363.03911319.6593367.558414599.15822.089524.33002.75183.50762.877421.42211.035714332.009814332.009814332.009824.3336367.34461.0131410.380642.86354754.866712.90472.131123.118520.67701.08481.08863.95474.87192.72113.52064.8493

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3.

8S|

O| ran^ 4 c ( |o|

zj

7.

- 70 -

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8.

7|7|o|| cHffl-

*£ 7|7|0||

oil

31

7|7|

fe s=o||4!sis. -^^

O| ^ PSA

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- fit^l, 0| S i °S^E i §U| f l§ &A|7|£ho| 2 ^ # ^ 2 | Z| 7i|S0|| cuei-

s t o|#MfeA|?h# Til^acK chg-s as^4=^ l l« 7|^o|| CHS- PSA o\g^ ^^7\

APC) fllt.^O|cK

(0.64*24+0.64*24)*2 = 61.4hrs/2year/train

# 7|s0l| CH& 0 | # # ^ £ ^ 7 | 5 £ £€• g f S ° l 3l£isW PSA 0 | # ^

92.2hrs/2year/trainH^ SSl^K ^ , PSA APC^

^ , PSA SlO)|Ai 7 f f g° ! 7|7|0||

SJ 7|7|0||

l-Sa^K 0|

H§H 2|Z| 1.36E-3[0.498/365]2F 1.14E-2[(2.08*2)

o| §u | f lS MUAgm SiaS. &^| ^ S A| A ^ S - ^ K

P S A A P C ^ ^|Aj§fe gHgJH go| Su | f lS o|SM^A l2i-# ? i l ^sM, MS

cHtHAi^ 35.9hrs/2yr/train, 7|7|^z|^^|#oi | c||3HA-l£- 199.7hrs/2yr/train

PSA

3,4S7|2| ic^j^^eiE. ^ § #7^|fe 34.67%

10 [-a51og 826*10"-11=34.67%

, CDFtee=8.26 x 10~6

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s. 14.

MR

Func

AF1AF1AF1AF1CC1CC1

Component

AFMPM01AAAFMPM02BBAFTPMO1 BAAFTPMO1ABCCMPM002PACCMPM002PB

PSA

MUA

1.76E-31.76E-31.76E-31.76E-32.63E-32.63E-3

PSA

APC

days/

yr0.640.640.640.640.960.96

MR

APC

days/

yr0.4980.4980.4980.4982.082.08

Train-*.

111122

MR APC

MUA

1.36E-31.36E-31.36E-31.36E-31.14E-21.14E-2

MR APC

Hrs/2yr/tr

35.856

199.7

PSA APC

Hrs/2yr/tr

61.4

92.2

PSA

2| 7|7|S|

SSCOll

PSA

7p|o||

XI581

A|n|-c|- 10-g-o.

1=21

18S

PSA

oii

PSA

siK o|

1.1709,

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7-1*1 Poisson

3 1 , fe 96.87%^.

20.54%0|H fe 96.87%?J

e 2.43%^

152|-

15.

ssasfos cuePSA 7IS Ma

AFMPR01AA

AFMPR02BB

AFMPS01AA

AFMPS02BB

AFTPR01BA

AFTPR02AB

AFTPS01BA

AFTPS02AB

CCMPR001PA

CCMPR001PB

CCMPR002PA

CCMPR002PB

CCMPS002PA

CCMPS002PB

PSA

S

3.60e-3

3.60e-3

3.0e-3

3.0e-3

7.2e-3

7.2e-3

1.5e-2

1.5e-2

1.2e-4

1.2e-4

t.2e-4

1.2e-4

i.3e-3

1.3e-3

Sfc A[Lf

Hourly

Hourly

Demand

Demand

Hourly

Hourly

Demand

Demand

Hourly

Hourly

Hourly

Hourly

Demand

Demand

s s ai.50e-4

i.50e-4

3.0e-3

3.0e-3

3.0e-4

3.0e-4

i.5e-2

1.5e-2

5.0e-6

5.0e-6

5.0e-6

5,0e-6

i.3e-3

i.3e-3

afgAiLf

5

5

32

32

20

20

32

32

8760

8760

8760

8760

18

18

1

1

1

1

1

1

1

1

1

1

1

1

2

2

^ S * l

1.1709

0.2688

P(n)%

8.3

20.54

P(n+I)

%

2.43

2.76

P(n)

%

96.87

97.24

n

3

1

n+l

4

2

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4. £ ^

t 34.67%)

5 .

0|0||

SSC 7 | ^ 0 | ^fe-

. o| HH,

SSC 7 | ^ s |

^(Trigger)

o|« fl«H, Su|

( o| nflsi

S o| [«|s|

3,427121

3

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4 g-

fe PUMAS-N

SSI-el- S H I1 -

o|g flJi|# #sn

S S 0|

0|S|- g ^ d

of Plant)?ll

SSC

-, o|a|-

BOP(Balnce

XICK

§J

SI

- 76 -

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h 01 &^

§ a ^gjtysoiiAH. £oix|±r ^ a ^ a s s

, |SI, 1ST, AOT, GQA§2| flfll^SHI flsH-Mfe- Reg. Guide 1.174[22]o||

o|S flfll A|ga| 5 2 o £ a i ^A|(eiement monitoring)* 2.^§F

So| sscc^l cHfi ^ f e ^ A | 0 | H ^ uhs o|o)| « H 9 S D K z i B i n s g

STI/AOT #S| S | £ § f i 0|S flfl|S| A | ^ ^ 7feS|-7|| S ^ Si

SE&, S « l f f S # 4=a«SS* | Data Rule* Su|ffSo||Ai

3! 2a | 3,4s:7|s|

(RPS/ESFAS)£

PSA S | a ^ l ^^|7r SSSI-HS., SXH "34:^1 &E|) gJ S S # aj-gth PSAPSA H I S shgi a-y tMioiiAi ss « | 7 ^ ° S 4*9a-

31 *|a|,

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fe 7|7| £ ^

=- o|Bit!- 4#

a- e¥^^oi PSAfe PSA

*\\ 3

A|0||

A|O]|

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5 g- s ^ a1?- s-»

Sga(2J 2^3 ^ ^ ^ I S b in-y^^BJHtCore Damage Frequency; CDF),

^A|-^ip#H15.(Large Early Release Frequency; LERF),

O|£|-

A|O|| i s

PSA

-s7|5 A|-0|2|

PSA H I M ^HSsHo^ # 5!o|cK

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6 9

1. U.S. Nuclear Regulatory Commission, 10 CFR 50.65, "Requirement for

Monitoring the Effectiveness of Maintenance at Nuclear Power Plants", 1991. 7

2. Nuclear Management and Resource Council, NUMARC 93-01, "Industry Guideline

for Monitoring the Effectiveness of Maintenance at Nuclear Power Plants, Rev.1",

1993. 5

3. U.S. Nuclear Regulatory Commission, Regulatory Guide 1.160, "Monitoring the

Effectiveness of Maintenance at Nuclear Power Plants, Rev. 1" , 1995

4. NUREG-1526, "Lessons Learned from Early Implementation of Maintenance Rule

at Nine Nuclear Power Plants," 1995. 6

5. Nuclear Management and Resource Council, NUMARC 93-01, Rev.2, "Industry

Guideline for Monitoring the Effectiveness of Maintenance at Nuclear Power

Plants, Rev.2", 1996. 4

6. U.S. Nuclear Regulatory Commission, 10CFR 50.63, "Loss of All Alternating

Current Power,"(Station Blackout Rule)

7. D. Mauldin, S. Boardman, 10 CFR 50.65 Maintenance Rule Implementation, The

Nuclear Power Industries Joint Emergency Diesel Generator Owners Group

Conference, 1997. 6

8. NEI 96-03 "Industry Guideline for Monitoring the Condition of Structures at

Nuclear Power Plants"

9. NUREG/CR-5695, "A Process for Risk Focused Maintenance",

10. Truong V. Vo, Bryan F. Gore, Elizabeth J. Eschbach, Frederic A. Simonen,

"Probabilistic Risk Assessment Based Guidance for Piping In-Service

Inspection", Nuclear Technology Vol 88, 1989. 10, Page 13 -20

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11. Richard G. Allen Jr., 6th International Conference on Nuclear Engineering,

"Implementation of the maintenance rule at the San Onofre Nuclear Generating

Station(SONGS) Program Overview, Benefits, NRC inspection, and

enhancements", 1998. 5

12. Nuclear Management and Resources Council, NUMARC 87-00, Rev. 1,

"Guidelines and Technical Bases for NUMARC Initiatives Addressing Station

Blackout at Light Water Reactors", 1991. 8

13. NRC Reg. Guide 1.174,"An Approach for Using Probabilistic Assessment In

Risk-Informed Decisions on Plants-Specific Changes to the Licensing Basis",

1998.7

14. Inspection Procedure 62706, "Maintenance Rule," 1997. 12

15. Inspection Procedure 62707, "Maintenance Observation"

16. U.S. Nuclear Regulatory Commission, Reg. Guide 1.160, "Monitoring the

Effectiveness of Maintenance at Nuclear Power Plants", 1993

17. » £ ! 3,4 « H & s j e h S ^ S ^ &.3.M, 1997

18. § 3 3 , 4 Sj#2hSg§7|- 2.3.*\, 1997

19. -8£! 3,4

20. EPRI Technical Bulletin 96-11-01 ."Monitoring Reliability for the Maintenance

Rule", 1996. 11

21. EPRI Technical Bulletin 97-03-01 ."Monitoring Reliability for the Maintenance

Rule - Failure to Run", 1997. 3

22. S°IS 2U "I, 2000. 5

23.

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, 1998, 10

24.|, 1999, 10

25. S S I s\,1997, 10

26. a?PI SI, "S7|gg^7| oi^Oll p^# RPS/ESFAS|, 1999, 10

27. ?J^& ai,1998, 10

28. Aio|s S|, "984^ 1 Sf#^HS|, 1998, 10

29. UCHU SJ, "#Sl, 1998, 10

30. ,

X|-^oj-S|, 9 8 ^ ^ | £ [ # ^ S 2 | , 1998, 10

31. INPO AP-913, "Equipment Reliability Process Description", 2000. 3

32. IAEA, "Periodic Safety Review of Operational Nuclear Power Plants", SafetySeries No. 50-SG-012, A Safety Guide, Vienna, 1994

33. IAEA, "Training Course on Risk-Based Optimization of Tasks and Procedures in

NPP Operationdncluding Plant Design/Modification)", 1995. 7

34. J.T. Hawley, M.A. Melnicoff, "Calculation No.: BRW-97-0938-N : PSA Basisfor Braidwoods Maintenance Rule Performance Criteria", ComEd., 1997. 10. 16

35. G.P. Rozga, "Calculation/Addendum Title : PSA Assessment of MR APC and

RPC", Southern Co. 1998. 12.

36. EPRI TR-105396, "PSA Applications Guide", 1995. 8

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1=1

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1 . fl*ll *l£|>M(Reg. Guide) 1.160

NRCfe- 10 CFR Part 50, "Domestic Licensing of Production and Utilization Facilities"

s| 50.65 Hol|A-|, "Requirements for Monitoring the Effectiveness of Maintenance at

Nuclear Power Plants"^. 1991^ 7S 10S!

r:n 2 ass-(Reliability), o|g£(Availability)

, 0| S^l- M^IS^I(Transient) Mil

^ A p t 2£H

s| 2 S § #o|fe 5 j§ NRC2| ^#gHH(Defense in Depth) *So||Ai2|

S»H. ei-a^a sscej- saa- ui-ei-aas SSCOII

nn, ui-eta^a sscsi ^is-as JSH ei-aaa ? i ^

NUMARC 93-01 [2],"Industry Guideline

for Monitoring the Effectiveness of Maintenance at NPPs"-!- ^ l -^SitK o| X | * J A ^

- i

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NUMARC01H s ^ s i o i NRC I S § £ S NUMARCO||Ai g # gj

NRCfe- Reg. Guide 1.160# *l|A|iJ-o.SM| NUMARC 93-0101

1995^011 10 CFR 50.652I (a)(3)Sf B>S& Reg. Guide 1.160 Rev.1[3]«

(1) ^ 2 ^ , 7I IS, 7 j | ^ % 7|7|

fe 7|7| ,

EH (plant), ?l|#(system) Sfe- ^|^(train) ^5o||AHo| ^x\y[ o|-f-CH<EJcK

safety-significant)

(low safety-significant standby) SSCOil c^fHAife fi.# ?j|# SE

safety-significant) 7|-i- ^»J SSCOil

(performance criteria)-^ i-§-^ho

(2)

n|.# ^A|(surveillances), A|§H|-

51!?I

(3)

, o|e

- ii -

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(4)

NUMARC 93-

risk-significance^r non risk-significance^.

(5)

^ NUMARC 93-01 s| ?H§&

S S gJ-a(Safety significance ranking methodology)

SSC« flSEoll D|*|fe- g » 0 | 5 SSC21-

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2. StilflS * i§ T U ^*\M : NUMARC 93-01

NUMARC 93-01, "Industry Guideline for Monitoring for the Effectiveness of

Maintenance NPPs[2]",€- 10 CFR 50.65[1]£r Reg. Guide 1.160[3]o||A-j -ygSI-JL &

NUMARC 93-01 [2]S|

ssc» m^ss ^fi-sfeEii, eraas sscoii^*W(EOP), ^ a 7 p | s s ( M a s t e r Equipment List) #S|

K o| g § b | f l S s |§ cH-feKfliAH fl|a|Sfe s s c ^ S^H a s

?II5- (Fire Protection SSC), aej -^a SSC(Security SSC), a|4r -=-3 - tdI (Emergency

Facilities) ||0|Dh

•4. ^I1£O|| n | * | ^ goi=o| ^ SSC

fe SSC # ?llj£o|| a|*|fe. g®o| ^ SSC

level)2|

n|s|fe gS,fco| ۥ SSC -JdS^IS S a 2 S f e RRW (Risk Reduction Worth),

CDF(Core Damage Frequency), RAW(Risk Achievement Worth )# o|g§|-o^

(1)

s| RRW» n&ste., o|

iv -

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£]£}• RRWfe

SSC2-I

ssc

RRW § S £ S § ^(normalize) el

SSD4, RRW7|- 1.005

stag, o|# ssc

(2)

90% mi, o|o||

(3) RAW#

o)| n^|. ZJ-A|(monitoring)t^K o|uH, ^ ^

r i , O|oj| ix|-# a j ^ a

fe g ^ , 10CFR 50.65[1]2|

Q|^sfe sscoll

fe 10 CFR 50.65[1]s| (a)(2)!KH| g

oj oi|Bj-ga|(Preventive Maintenance) H^ZLlJOl ^ S s | i Sife 5 °

(a)(2)Soll ^ § f e

(a)(D

(1) - ^ ^

- v -

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o|#§# 95% 0 | ^ o S .X|BHO t!-c|-Dj O|

0.

SSColl qjsHA-ib 4 SSCOI V\n n^(specific) £!^7|S# gg&q- . C|P|&EHS|

#OII ma- uig-g A^S a.? X\B\ A|g gone!- ^ a # ^ ^7 | misoii, ^ ^ g*na (plant-level criteria)o||Ai § ad ^1£O)| g g g a|^j ^ oj

HHSt»|, gX|| A ^ S ^ - A|

7i|#o)| CHSH

S i t SSCi SiCh. 0|H SSCO1I

oil* S3

•s-^l(Surveillance Performance)* Sfe gi-QS

fe SSC -y=H7F §}ojg g ^ , o|

asfe aej M- « ^sth^. oi g ^ , n ssc# UKDSKH4, A|§5£X|(corrective action)

(a)(2)8£S cKI ^f i -m ^ SicK

A|§x|(scram)« ^S?| f f l , a 7 | ^

1-A|§X|7(-

level) ^ ^ 7 |

o}0|| o||7|*|

- oii7i*i a s

SSC71- ^^-^igoii D | ^ S ^ , n

il to Run)^ SSC£ (a)(2)&

hb H-E SSC-i

- vi -

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Sdl ^«H

7Mil

SSC

fr

4rE||(condition)7|- ^ - ^

- 6d MPFF2F A|g 5Ex| ^to|| ^ S S ° ! £ S ^ S«H MPFF7I- ^ ^ .

^ , © 7|7|S| MPFFS °JSH ?l|S0|U|. 7l|^o| A j ^ 7 | - # Q}^A|^ ^ on^ Hfl, H 7|

7|s| ^s(Goal)» ga«Ho|: S 5!eJ^I» assHof ShcK o}^ 7p | i g - s j ojoj0| gj-

. a s s A|ss*ie isacha, ^ i s -ysi- S£7i- SCK OI OH. MPFF^

a^l(Monitoring)t SSC I AJ^SJ. o|Slo)|

^ o m , @7|-sfe ?do|cK n a | j l zi 2 ^ 1

U S i S S A & flS(Station Blackout Rule, 10CFR 50.63)o||(EDG) AJS|£2|- ^ ^ flfl|S*|2|- ^SA^X|-2|-2| o f ^ g ^ ^ S S C o |

(surveillance)oil 3 & 7|Bh# ^ !^ i . ^K e>S SSC

(2) u |# c | ^ g**!7|(Emergency Diesel Generators) ^ f e

© ^ -S^ : SSAHi flS(Station Blackout Rule, 10CFR 50.63)[6]o|| 2| H U|AI.

SrS^I ^ S ^ S | £ » 0.954 0.975M

© o| a s StdlflS^I U|AJ. q g ^ g ? |

CD U|AJ. q g ^ g 7 | o | #M^£ fe IPE ^ ^ A| 7hS£|2J2L, o| a =

(Plant-specific) « l ^ q i B r a ^ l o|#M^-£SF u|jn^ot §FD^, O|

(a)(3) Soil

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(MPFF)sj

sscoii CHSH ^ ^ s ^ # flit

(1) MPFF2|

Soil S2JS

(2) MPFF7^ o|-td

Sfe 271A^Ol| SIS-

- MPFF# iBHSia HS-OI Zl SSC»

s, (a)(1)Sol|Ai (a)(2)l°(Surveillance) 7|Z>0| 6?HS O|S|-O|i, -M| * ^ | s | ^ A | 7|Z}

- vui -

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^0| t^^BlS Efl,

mi, J1S-2I ^I°J S 3 (Cause determination)o| 1 2 § ^ K ^ (a)(2)

SSC2I ^ ^ 0 | ^ ^ 7 | 5 0 | | ^

SSC^I 71-s- ^"H(functional failure),

MPFF.

(a)(2)*rOll*| ^So r Di , 0|

(a)(1)fH>ll ^m\ @^K SSC # 7 | ^ s | o ^ A | S | £ 7 F ^ g (inherently reliable)

il to Run)0| ^ g ^ f e

-7|sj §d | , gx|-, A | § (Periodic maintenance, inspection, testing) ; ^S"-^- tiHH,

&i JUS!- ^

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- x -

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- xi -

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PVNGS (1/2)

Maintenance Rule Annunciator Report for January, 1997

High Risk Significant Systems

AF/CT

ARCDCH

DG/DF/HEMPEECEWFTFWGT/NE

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SG

SI/XO

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- X V -

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3. A.1 PVNGS (2/2)

Maintenance Rule Annunciator Report for January, 1997HP

RKQD/QBSS

Hydrogen MonitoringHydrogen RecombinersHydrogen PurgePlant AnnunciatorEmergency Lighting (Site-wide)Nuclear Sampling System

Low Risk Significant Systems With Performance Criteria

PCQFRDSESQ

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Plant Level PerformanceUnplanned Capacity Loss FactorCO Control OilUnplanned Reactor Trip (1 trip per 7,000 hours in 36 months)Shutdown Performance (No unplanned change to reactivity, inventory, or heatremoval)

0 Established Target Met• 75% of Target or 1st Trigger Reached. Target Still MetO Exceeded Established Target Values for the MonthU = UnavailabilityR = ReliabilityP = Plant

UnitlU R

Unitl

Unit2U R

Unit2

Unit3U R

Unit3

Red Border Denotes System in (a)(l)

t Improving i Declining -»Steady

Performance Reported on a 12 Months RollingWindow

- X V I -

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A q

IMS

KAERI/TR-1680/2000

£4 D^ (Rev.O)

gj

(AR.TR f-

i^ 6] X] 110 p. fl«o), a*( ) 3 71

2000. 11

A4

^7fl( 0 ),

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, SSC, Risk Significant SSC, MPFF, ^^

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BIBLIOGRAPHIC INFORMATION SHEET

Performing Org.Report No.

Sponsoring Org.Report No.

Standard Report No. INIS Subject Code

KAERI/TR-1680/2000

Title / Subtitle

A Study on Maintenance Rule Program and Its Application at Korean NPPs (Rev.0)

Project Managerand Department(or Main Author)

Meejeong Hwang, Integrated Safety Assessment Team,

Researcher andDepartment

Kilyoo Kim, Dae-Il Kang, Joon-Eon Yang, Jaejoo Ha,

Integrated Safety Assessment Team,

PublicationPlace

Publisher KAERIPublication

Date2000. 11

Page 110 p. 111. & Tab. Yes( 0 ), No ( ) Size A4

Note

Classified Open( 0 ), Restricted(Class Document

Report Type Technical Report

Sponsoring Org. I Contract No.

Abstract (15-20Lines)

The objective of the Maintenance Rule is to requiremonitoring of the overall continuing effectiveness of

maintenance programs to ensure that safety related and certain1 i censee

nonsafety-related SSCs are capable of performing their intended functions and,

for nonsafety-related equipment failures will not occur that prevent the!

fulfillment of safety-related functions, and failures resulting in scrams andj

unnecessary actuations of safety-related systems are minimized. That is, properj

maintenance is essential to plant safety.

U.S. Maintenance Rule, which was effective July 1996 in USA., was not officially

adopted in Korea by Korean regulatory body. However, since many PSA and IPE have

been performed for NPPs, the philosophy and usefulness of the Maintenance Rule as

well as performance-based regulation are being acceptable.

We survey the Maintenance Rule program and applications in the USA, and also

developed the Maintenance Rule program to apply to Korean NPPs. In addition, we

applied the Maintenance Rule Program apply to Ulchin 3,4 Units roughly with the

Maintenance Rule Program developed in this project.

Subject Keywords(About 10 words)

Maintenance Rule, Prescriptive Regulation, Performance-basedRegulation, SSC, Risk Significant SSC, MPFF, Performance

Criteria, Reliability, Availability, Operability