ML20092F956
| ML20092F956 | |
| Person / Time | |
|---|---|
| Site: | Vogtle  |
| Issue date: | 01/30/1989 |
| From: | Brown R GEORGIA POWER CO. |
| To: | |
| Shared Package | |
| ML20092F288 | List:
|
| References | |
| CON-IIT05-002-132C-90, CON-IIT5-2-132C-90, RTR-NUREG-1410 LO-IU-40101-02, LO-IU-40101-2, NUDOCS 9202190572 | |
| Download: ML20092F956 (9) | |
Text
i USERWCOPY Georgia Power 2
w POWER GENERATION DEPARTMENT
- A.
VOGTLE ELECTRIC GENERATING PLANT INSTRUCTIONAL UNIT TITLE:
MAK3 EMERGENCY CLASSIFICATION NUMBER:
L0-10-40101-02-001 ROGRAM:
1.! CENSED DPERATOR OR 2
AUTHOR:
FRANt: WURSTER / STEVE DEAN DA TE:
1/27/89 9QM
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REFERENCES:
91001-C, REV 6 K-
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O LO-lu-40101-02-001:
Make Energency Classification EEBEDB56bCE.0BJEGIIVE G1v>n that a degradation of a plan; systes that can cause a significar,t release of ractoactivity fif not controlled), a natural phenosenen, or a signif icant plant radioactivity release has occurred, classif y the emergency bases upon the sever'ty of the probles.
IbE0B00II0B in the event af a plant emergency, the Energency Virector is responsible for declaring and classifying the emergency and for imploesnting protectivn actions tecause of the inorgs.scy.
The 0505 will assume the position of Emergency Director until the OSOS is properl*f relievec by a person frov i
plant aar.agement ijho is qualified to serve a-the Emergency Director (general manager or vice president, nuclear operations).
The OSOS is respotesib e f or the initial emergency classification.
Subsequent required ections, including making approfetate no'aifications and possibly evacuating personrrl, will be made by the Esargency Director and will be dependent upon the unorgency classification.
The typss of emergencies listed below are in order of increasing significance.
1.
Nottlicatton of unusual Event 2.
Alert 3.
Site Area Emergency 4.
General Energency A wide range of problems can lead to a plant escrgetir.y.
These ocssibilities have been grouped into 10 categartes for purposes of classifying the emerger.cy, 1.
A losa of off-site power for the plant 2.
A severe violaticn of Technical Specificationt 9
3.
High radioactivity levels in or around the plant 4
Degradation of plant systems required to control the plant 5.
Natural phenomenon, including a tornado, hurrica9s, or earthquake 6.
Man-esde hazards, '.ncluding explottons, toxic gas releases, aircraf t crashea, and train derallaants 7.
Security threats 8.
A fission product harrier degradation, caused by clad or f uel damage, a LOCA, or a containsent breach 9
A complete lost of a systen necessarv for the safe shutdown of the plant 10.
Any other unespected event or condition tnat inhibits safe operation of the plant 1-1
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BB0GEQuBE.11901:C i
i Obtain a copy of Procedure 91001-C, "Esergency Classification and laplementing Instructions,' for reference.
To classify the esorgency, you
-nould relata the probles to the matrix (Figure 4) found in Procedure i
<1001-C.
To determine if a fission product barrier has been breached, use Figures 1, 7. and 3 for a fault-tree analysis using the Energency Response Factisties (ERF) computer; tnen refer to the matria in Figure 4 to i
determine the emergsney classificatten.
i l
Data Sheet i aust be completed to dernment the emergency classification.-
f Follow the appripriate checkiist to veraf y that the recuared actions are carried out.
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b CLOE!!fXIb0.IBE.EDEBGENCY i
DEIEBDINE.IBE.IYEE.0E EDEBSENCY.C08D1I108 Use Procedure 91001 C and rigure 4 to deterathe the type of emergency condition, the ten categories previously discussed must be considered when classiiving the energency.
j To determine if a _ fission product barrier has been breached, use Figures 1
(
1-3 and the ERF computer to evaluate the integrity of-the fuel cladding, the Reactor Coolant Systes, and the containment.
Fuel Cladding integrity - Go to the SPDS annunciator keyboard on the ERF computer to determine if there is a breach of the clad fission barrier.
14 this 'REAC,' or ' CORE CLO' pushbuttons/alares are red or r
orange, or-if 'ktAT SINK" pushbutten/alara is red, then a f uel clad failure aust be assumed.
You can'nonitor the status tree by depressing the respective pushnutton.
You must also consider other factors when trying to determine fuel / clad daeage.
These factors can be found'in Figure 1 of the procedure.
If any of those f actri s exist, e
then you must also assume a fuel / clad failure, even if you do not have an SPDS alara.
RCS-Integrity - The RCS integrity must also be considersd for the emergency classification.
If the ' CORE CLG' or the_"RCS INT' alarm is red or orange, the RCS is breached.
Again, other factors eust be l-considered.
They can be_found_on Figure 2-cf the proceJure.
If any-of those factors exist, an RCS breach is-assumed to have occurred.:
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Containment Integrity - The status of the containment's_ integrity can-
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be found by-observing the *CNMi' alars on the SPDS.
If it is red or orange, the containment is assueed breached.
Figure 3 lists the other l
factors that eust also be considered, stallar tofthe'above.
Just as.important as determining if a fisston product! barrier is_ breached
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i is the. determination lof how many carrim s have been breached.- As' the-l-2.
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c._.___________.._________._._-
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nupDer of breached barriers increases, se does the energency classification.
The other categories that are criteria in classifying an energency must also be considered'.
They are more ebviousi plant status, environmental conditions, reports from operators, and plant staff, etc.
I QEIEBU10E.ldC.(CEBGEDGi Gke5SIEl(61100 Using Figure a f rom the procedure, compare the known conditions with the i
conditions listed under the applicable categories to determine the correct emergency classification.
i fo determine the appropriate classification in terms of fission product 4
release, use the results of 6.he analysis of fission product barriers.
If a t
creacn was found in one of the three fission product barriers, the emergency snould be declared an Alert.
If two Barriers were breachedg-the classification should be a Site Area Emergehty, and if all three barriers nave been breached, a General Energer,cy exists.
C052LEIE.DBIB.lBEEI.1 This data sheet serves as documentation that you have cospleted the steps required to classif y the emergency, including analyses of the integrity of the fission product barriers using Figures 1, 2 and J.
Also, you determine the highest energency classification level for present plant conditions using Figure 4 i
l C0t2LEIE.IBE.CBECELISI.E08.!SE.E5EBGENCY.CLeSSJEIC8IIDH use the checklist f or the esorgency classification-that you have declared.
For a Notification of unusual Event classification, you will aske a public address announcement.
If the classification is for an Alert, you will also sound the Alert alarm, which is a warble tore.
The alara-for a Site Area Emergency is a pulse tonel the alarm f or a General Emergency ts a yelp tone.
For a Site Area or General Emergshey, in addition to asking the public address announcement and sounding the alara, you must direct-the site evacuation of all nonessenti.a! personnel.
Each cnecklist will direct you to the appropriate Energency Plan laplementing procedures (EPIP's)! these procedures.will be discussed in l
subsequent chapters.
You will continue to act as Emergency Director until
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you are relieved by a qualified person f rom plant sanagement.
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f LO-lu-40101-02 001:
Make toergency Classification REBE0BdebCE.0 VIDE Follow these steps'to make the energency classtitcation.
1.
Determine the type of esorgency condition.
2.
Detareine the energency classification.
3.
Complete Data Sheet 1.
4.
Cosplete the chacklist for the eeergency clasulfication.
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LO-!U-40101 02 00ll Make Energency Classification SELE:IESI Before pretending 'to the Task Practice. answer the folloising questions.
- l. Ih'....................orthe.....................willrettsve the OSOS as the Emergency Director.
2.
List the four energency classifications in order of increasine significance.
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3.
List the three fission product barriers.
4 What is the appropriate emergency classification if a breach is found in two fission product barriers 7 e
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885 WEBS 1.
general manager 5tce president, nuclear operations 2.
Natification of Unusual Event Alert Site Area Emergency General Emergency 3.
Fuel Cladding Reactor Coolant Systea Containment 4
Site area. af there are no additional problems that require t higher energency classification 1-6
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LO-!U-40161-02-00li Make teergency Classification 105t.230CIICE 1.
Review Procedure 91001-C.
Be sure that you understand the procedure liettations and the sequence of the steps.
If you have any questions, ask the instructor to explain.
2.
Use Procedure 91001-C to classif y the following energency situations.
Following a LOCA, the pressuriser level is dropping, and the a.
safety injection charging flow cannot esintain the pressuriser
- level, the dose rate at the protected area fence is seasured at to eR/ hour and the projected two-mile radius dose rate is 2 mR/ hour, b.
One hour af ter the accident described in "a," the dose rate at the protected area. fence has increased to 2 res/ hour, With the plant operating in mode 1, the operators discover that c.
both RHR trains are inoperable, d.
With the plant operating in node 1, the gross-tailed fuel detector alares and a cheatstry sample indicates high fission product composition in the fuell clad damage is suspected.
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L-
t A
LO-lu-40101-02-001:
Make Energency Classtiteation EEE0ioCE.QN.IBSE.EBBCIICE 1.
If you have a'ny questions, refer to the Information section of this chapter or ask your instructor.
2.
a.
Considering only the radioactivity release, the classification would be as an Alert, because the dose rate is greater than 0.5 mR/ hour but less than 50 mR/ hour (for a Site Area Energency classification).
However, the loss of coolant accident is 4
outside the makeup capability of the ECCS and constitutes a breach of a fission product barrieri therefore, the classification sust be a Site Area Energency.
Because the dose rate now exceeds the aanteus dose rate for a D.
Site Area Energency (less than I rea/ hour), the classification aust be upgraded ta a General Easrgency.
The inoperability of both RHR trains represents a loss of the c.
capability to cool down the RCS to less than 350 degrees F liable 2), a Site Area Emergency classification.
l d.
Using Figure i to evaluate the fuel cladding integrity, it must I
be assumed that the fuel cladding has been breached or challenged.
A breach or challenge to one of three fission product carriers aust be classified as an Alert.
1-8
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