ORNL-TM-3253 by Jon Morrow

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O A K R I D G E N A T I O N A L LABORATORY operated by

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STE

U N I O N CARBIDE CORPORATION for the U. S. ATOMIC ENERGY COMMISSION

ORNL - TM - 3253 0

DATE

February 1 0 , 1971

PERIOD BETWEEN EXAMINATION ..--

I@RE PR0CEDUJ.E-3-FOR-THE

U _ . " Y

-I-

-r

AND ULTIMATE . ._...._DISPOSAL n .

".--I.

(Phase I11 of Decommissioning P r o g r d

R . H. Guymon

ABSTRACT

T h i s document d e s c r i b e s t h e c o n d i t i o n of t h e MSRE and s p e c i f i e s procedures t o b e followed a f t e r t h e p o s t - o p e r a t i o n examinations and b e f o r e t h e u l t i m a t e d i s p o s a l o f t h e f i s s i l e and r a d i o a c t i v e m a t e r i a l i n t h e r e a c t o r . The f u e l salt w i l l b e k e p t f r o z e n i n t h e s e a l e d d r a i n t a n k s , w i t h i n secondary containment whose o n l y opening i s through f i l t e r s t o a s t a c k . S u r v e i l l a n c e w i l l c o n s i s t of remote monitoring and d a i l y v i s i t s by X-10 p l a n t p e r s o n n e l . P e r s o n n e l a c c e s s w i l l b e c o n t r o l l e d by t h e s e c u r i t y f e n c e around t h e r e a c t o r b u i l d i n g . The MSRE Procedures s p e c i f y remedial a c t i o n s f o r abno-1 c o n d i t i o n s . Also s p e c i f i e d a r e procedures and r e s p o n s i b i l i t i e s f o r maintenance, m o d i f i c a t i o n s , and removal of s u r p l u s equipment.

. Keywords: m o l t e n - s a l t r e a c t o r s , MSRE, p r o c e d u r e s , s t o r a g e , s u r v e i l l a n c e , a d m i n i s t r a t i o n , containment, f l o w s h e e t s , maintenance, o p e r a t i o n s , ORNL, p l a n s , t e s t i n g .

NOTICE This document contains information of o preliminary nature and was prepared primarily for internal use a t h e Oak Ridge National Laboratory. It i s subiect to revision or correction and therefore does not represent a final report.

BISTRfBUTION OF THIS DOCUMENT IS UNLIYlTEb

iii

LJ i

Table of Contents Page ~BSTRACT A.

B. C. D.

F. G.

......................... DESCRIPTION AND NORMAL OPERATING CONDITIONS . . . . . . . . . INTRODUCTION

........................ DATA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1. Control-Room Log . . . . . . . . . . . . . . . . . . . . . 2. Periodic Logs . . . . . . . . . . . . . . . . . . . . . . ABNORMAL CONDITIONS ..................... POWER OUTAGES. . . . . . . . . . . . . . . . . . . . . . . . . ANNUUTASKS.. ....................... 1. Recombine Fluorine by Heating t h e Drain Tank . . . . . . . 2. Pressure T e s t o f t h e Reactor and Drain Tank Cells . . . . 3. FD-2 and FP Pressure . . . . . . . . . . . . . . . . . . . 4. Ventilation System . . . . . . . . . . . . . . . . . . . . 5. RC A i r Activity. . . . . . . . . . . . . . . . . . , . . . 6. ~ u m p p u m p s . . . . . . . . . . . . . . . . . . . . . . . . 7. Miscellaneous . . . . . . . . . ‘. . . . . . . . . . . . . MAINTENANCE AND REPAIRS . . . . . . . . . . . . . . . . . . . REMOVAL OF EQUIPMENT OR INSTRUMENTATION . . . . . . . . . . . ACCESSCONTROL. . . ORGANIZATION AND CHANGES . . . . . . . . . . . . . . . . . . . SURVEILLANCE.

REFETBNCES.

...........................

8 10

10 10

17 25

26 28 29 29 30 30

34 34

38 40

This report was prepared as an account of work sponsored by the United States Government. Neither the United States nor the United States Atomic EnerSy Commission, nor any of their employees, nor m y of their contractors, subcontractors, or their employees, makes any warranty, express or implied, or assumes any legal liability or responsibility for the accuracy, comgleteness or usefulness of any information, apparatus, ’moduct or process disclosed, or represents that Its me &odd not &fringe privately owned rights.

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W f B U T l O N OF THIS DOC--

IS ZTNL

INTRODUCTION

The retirement o r decommissioning of t h e MSRE involves s e v e r a l phases. Phase I i s t h e period between t h e end of power operation and t h e postoperation examinations, which is Phase 11. Phase I11 i s t h e i n t e r i m period between t h e completion o f t h e examinations and t h e f i n a l d i s p o s a l which

i s Phase I V . During Phase 111, some of t h e information given i n t h e MSRE Design and Operations Reports (Refs. 1 through 9 ) and t h e f a c i l i t y drawings w i l l s t i l l b e applicable.

Much of t h e equipment w i l l not b e i n s e r v i c e , however,

and most o f t h e procedures which were followed during operation w i l l no longer b e applicable.

This report describes t h e systems which w i l l be

used and s p e c i f i e s t h e normal conditions and s u r v e i l l a n c e required during Phase 111. It a l s o lists t h e more probable abnormal s i t u a t i o n s which could develop and prescribes remedial actions.

The system of access c o n t r o l ,

approvals required f o r maintenance and changes, and r e s p o n s i b i l i t i e s are delineated.

This document supersedes a l l previous operating procedures

f o r t h e MSRE.

DESCRIPTION AND NORMAL OPERATING CONDITIONS

Most of t h e equipment and instrumentation involved during Phase I11 i s shown i n Figure B-1.

Pertinent information on t h e instruments i n

s e r v i c e i s given i n Table B-1.

Plan views of t h e b u i l d i n g showing evacu-

a t i o n routes a r e shown i n Figure B-2.

axe given i n Table B-2. (D-AA-A-40880

The most o f t e n used abbreviations

Master, marked-up,.copies of t h e flowsheets

t o 40890) , t h e instrument application drawings (D-AA-B-40500

t o 40515) and t h e e l e c t r i c a l power d i s t r i b u t i o n drawing (E-20794-ED-153-D)

w i l l be kept up t o date and available i n t h e MSRE c o n t r o l room i n Building 7503.

Another up-to-date

s e t of drawings w i l l be kept i n t h e

outermost room of t h e o f f i c e building (Room 17, Building 7509). About one-half of t h e f u e l s a l t (5,460 l b s ) i s s t o r e d i n FD-1 and t h e o t h e r h a l f (4784 l b s ) i n FD-2.

A l l of t h e f l u s h s a l t (9,460 l b s ) i s

,,,

9' I

(3 I

SAMPLER ENRICHER c,

'---1

I I

r----------

I I

I ---1 NORTI SERVI

ECTRIC \REA

I I

I I I

I I --I

VENT

164

UOUSE

REACTOR

h-r'

UIGH ACTIVITY ON RM-5658 aU: WILL C W W - S

,-c

I I I

AND FROM OTHER H I 8IRE643 AY

SEE D-AA-1-40ab3

FlGlJRE 6-1 5 R E FLOWSHE€T FOR PHASE

L.RR

Fig. B-1.

S-6.n /

MSRE Flowsheet for Phase I11 I

Table B-1

No.

Location

Range

NO.

** FE-Sl H20

n-Sl

Stack Pnl.

0-1 in.

LI-RC-C

0-20 i n . H20 LE-RC-C

LI-DTC-AI.

TR.

LI-FSC-A LI-FSC-A

LI-FSC-A

TR TR

Primary Element

LE-DTC-Al

0-52 i n . H20 LELDC-C 11 LE-FSC-A

Variable Monitored

No.

Annunciator Switch No. Setpoint

Stack Flow RC Sump Level DTC Sump Level

DC Sump Level FSC-Sump Level

LE-TC-A

LE-SC-A

SC Sump Level

LE-WTC-A

WTC Sump Level

LS-PRS

Pump Room Sump L e v e l

XA-SD-8

LS-PRS

---

TC Sump Level

PI-572B

ACR

0-50 pSig

PT-572B

FD-2 Pressure

XA-SD-1

PS-572

PI-589A

ACR

0-50 psig

PT-592B

FP Pressure

XA-SD-2

PS- 589

1.2 psig 40.5 p s i g

PI-927A

Stack Pnl. -8-0 i n . H20 PI-927A

Stack F i l t e r I n l e t Suction

XA-SD-3

PS-927

4-1 i n . H20

PI-RC-A

MCR

-15-50 pSig

RC Pressure

XA-SD-4

PS-RC-1

41 p s i g

RI-565-B

ACR

0-100 mR/hr

RC Air Activity

XA-SD-5

RS-565-B

420 mR/hr

RI-565-C

ACR

XA-SD-5

RS-565-C

420 mR/hr

RI-S1-A

ACR

RI-S1-B

ACR

RI-S1-C

ACR

PT-RC-A

RM-565-B 0-100 mR/hr RM-5654

**** **** ****

*** *** RC Air Activity

RM-Sl-A

Stack B,y a c t i v i t y

XA-SD-6

RS-S1-A

<6000 c/m

RM-Sl-B

Stack u a c t i v i t y

XA-SD-6

RS-S1-B

e6000 c/m

R&SI-C

Stack Iodine Activity

XA-SD-~

RS-S1-C

~ 6 0 0 0c/m

* A l l annunciators repeat a t ORML Central Waste Monitoring F a c i l i t y (Building 3105). ** See c a l i b r a t i o n curve f o r conversion t o ***High a c t i v i t y indication (>20 mR/hr) on ef liot wh e. r RSS-565-B or -C w i l l close HCV-565. **** These a l s o i n d i c a t e as w e l l as annunciate at t h e ORNL

Range switching 1s provided. Monitoring F a c i l i t y (Building 3105).

INSTRUMENTATION

Read-Out Instrument

Central Waste

Table E-1

Instrumentation (continued)

Read-Out Instrument BO.

Location

Range

NO.

0-5000 c p m

RM-7001

RI-7012

Hi Bay Hi Bay

0-25 mR/hr

TR-SD-1-1

ACR

0-1000'F

TR-SD-1-2

ACR

0-1000'F

RM-7012 TE-FD1-19A TE-FD1-5

TR-SD-1-3 ACR

0-1000'F

RI-7001

TR-SD-1-4

ACR

0-1000'F

TR-SD-1-5

ACR

0-1000'F

TR-sD-~-~ ACR

0-1000'F

TR-SD-1-7

ACR

0-1000'F

m-m-1-8

ACR

0-1000'F

TR-SD-1-9

ACR

0-1000'F

TR-SD-1-10 ACR

0-1000'F

TR-SD-1-ll

0-1000'F

***#A l l

ACR

Primary Element

V a r i a b l e Monitored

NO.

Hi Bay Constant Air Monitor XA-SD-7 Hi Bay Monitron XA-SD-7

-- Probe -- Bottom TE-FDl-15 FD-1 temp. - Lower s i d e TE-FD2-19A FD-2 temp. -- Probe ~ e m 2 - 5 FD-2 temp. -- Bottom ~ ~ 4 ~ 2 - 1FD-2 5 temp. -- Lower s i d e TE-FFT-4 FFT temp. -- Bottom TE-FFT-ll FFT temp. -- Lower Side FFT temp. -- Mid Side TE-FFT-7 TE-DTC-6 DTC temp. -- SE TE-RC-1 RC temp. -- SW

Annunciator Switch no. Setpoint RS-7001

4000 cpm

RS-7012

25 mR/hr

FD.1 temp. FD-1 temp.

annunciators repeat at ORNL Central Waste Monitoring F a c i l i t y (Building 3105).

Range switching is provided. These also indicate as w e l l as annunciate at t h e ORNL Central Waste Monitoring F a c i l f t y (Building 3 0 5 ) .

5 ORNL-OWB 74-995

HEALTH PHYSICS

-N-

INSTRUMENT

-**a-

SECURITY FENCE

@ TURNSTILE

(OUTBOUND ONLY)

GUARD POST

"2" BUILDING 7509 OFFICE AREA

REMOTE ROOM CONTROL MAINTENANCE ELEVATION 862tt Oin.'"D"

ELDG. 7503

- 852-ft

LEVEL

E$E" EOUIPMENT

PLOT PLAN

- M S R E AREA

"F"

ELDG. 7 5 0 3 - 8 4 0 - f t

Fig. B-2.

Ehergency Evacuation Routes

LEVEL

Table B-2 EQUIPMENT AND LOCATION ABBREVIATIONS AB

Auxiliary Board

Main Board

ACB

Auxiliary Charcoal Bed

MCR

Main Control Room

ACR

Auxiliary Control Room

NESA

North E l e c t r i c Service Area

Blower House

Pump Room

Charcoal Bed (main)

PRS

Pump Room Sump

Coolant Cell

Reactor C e l l

CDC

Coolant Drain Cell

RMC

Remote Maintenance P r a c t i c e Cell

CDT

Coolant Drain Tank

Equipment Storage C e l l

Cooling Tower

Stack

Decontamination Cell

SESA South E l e c t r i c Service Area

Diesel House

SER

Special Equipment Room

DTC

Drain Tank Cell

Stack Fan

Fuel D r a i n Tank

SFA

Stack F i l t e r ( f a n ) Area

FFT

Fuel Flush Tank

Switch House

FSC

Fuel Storage Cell

Service Tunnel

FST

Fuel Storage Tank

Spare C e l l

High Bay

Transmitter Room

HCP

Heater Control Panel

VH WR WT

Vent House

WTC

Waste Tank C e l l

Water Room Liquid Waste Tank

7 s t o r e d i n FFT.

The salt i s a t ambient temperature and pressure with all

heaters turned o f f .

The salt fill l i n e s (104, 105, and 106) have been

severed and are blanked i n t h e d r a i n tank c e l l . t r a n s f e r freeze valves (107, 108, and 109).

S a l t i s frozen i n t h e

The equalizer l i n e (521)

between t h e tanks and t h e f u e l c i r c u l a t i n g system has been blanked i n t h e drain Cell.

The helium supply l i n e s (572, 574, 576) a r e capped.

The

vent valves (HCV-573, -575, -577, and -533) a r e open ( s i n c e they a r e f a i l open valves) but HV's-542, vent house a r e closed. tanks.

-52211, -522B, -538B, -57lB, and -561 i n t h e

Thus t h e r e normally i s no purge o r vent f r o m t h e

The drain tanks and t h e f l u s h tank gas spaces a r e interconnected

through t h e vent valves and t h e equalizer valves (HCV-544, -545, -546). The pressure i n t h e tank system i s indicated and annunciated by PIA-572 i n t h e a u x i l i a r y control room.

The drain tank and other temperatures

can be read on TR-SD-1. The f u e l c i r c u l a t i n g system contains only r e s i d u a l amounts of f l u s h salt.

The system w a s opened at t h e r e a c t o r , f u e l pump, heat exchanger,

and l i n e 103.

These openings were sealed i n various ways and were shown

not t o leak excessively a t 5 psig.

Since some of t h e heat exchanger tubes

were cut o u t , t h e main coolant s a l t l i n e s (200 and 201) communicate with t h e f u e l system and were therefore welded shut j u s t outside t h e r e a c t o r cell.

The system i s at ambient temperature and pressure.

The helium

supply l i n e s (516, 592, 593, 596, 589, 599, and 600) a r e capped.

The

main vent l i n e (522) i s closed by HV-522A and t h e upper offgas l i n e (524) i s capped i n t h e Special Equipment Room.

The pressure i s indicated and

annunciated by PIA-589 i n t h e Auxiliary Control Room. The coolant salt (3,575 l b s ) i s i n t h e coolant drain tank, a t ambient temperature and pressure.

Freeze valves 204 and 206 a r e frozen t o separate

it from t h e coolant c i r c u l a t i n g system.

The helium supply valve (HV-

5 U B ) i s closed and t h e vent l i n e i s blanked o f f t o i s o l a t e t h e tank.

The coolant c i r c u l a t i n g system contains only r e s i d u a l amounts of coolant salt. (masking t a p e ) .

It has been opened i n s e v e r a l places and i s l i g h t l y sealed There a r e no helium inputs t o t h e system o r vents from

it.

-6d

The main charcoal beds a r e i s o l a t e d by valves 522B and 557B. a u x i l i a r y charcoal bed i s i s o l a t e d by valves 561 and 5 6 2 ~ .

The

The r e a c t o r and drain tank c e l l membranes a r e sealed and t h e blocks

are secured.

The v e n t i l a t i o n valves (930B and 955B) a r e closed and locked.

The c e l l s a r e vented t o t h e s t a c k through l i n e 565.

by pressure from a cylinder of nitrogen.) t o r e d by RIA-565 B and C.

(HCV-565 i s kept open

Activity i n t h e l i n e i s moni-

High a c t i v i t y indication on e i t h e r detector

w i l l close HCV-565 and annunciate i n t h e a u x i l i a r y control room.

A l l other

l i n e s and penetrations i n t o t h e c e l l s a r e mechanically sealed. Stack fan SF-1 i s i n s e r v i c e and SF-2 i s i n standby (damper 925 open and 926 closed).

A l l t h r e e s t a c k f i l t e r s a r e i n service.

Most of t h e

building v e n t i l a t i o n flow i s from t h e high bay with smaller amounts from other areas including t h e chemical processing c e l l . bution i s not c r i t i c a l . )

(The r e l a t i v e distri-

The s t a c k flow i s indicated by FI-S1 at t h e stack.

The pressure at t h e inlet t o t h e f i l t e r s is indicated and annunciated by PIA-927A.

The a, B-y, and iodine a c t i v i t i e s i n t h e s t a c k a r e indicated

and annunciated i n t h e a u x i l i a r y control room and a t t h e ORNL Central Waste Monitoring F a c i l i t y (CWMF)

A l l water l i n e s t o t h e r e a c t o r and drain tank c e l l s have been disconnected.

The w a t e r l e v e l s i n all c e l l sumps can be checked using t h e bub-

b l e r l e v e l i n d i c a t o r s , but no annunciation is provided.

The waste tank i s

e s s e n t i a l l y empty and can a l s o be checked using a bubbler l e v e l indicator. The pump-room sump, which c o l l e c t s water from t h e f i l t e r p i t , french d r a i n s , e t c . , i s automatically pumped t o t h e drainage d i t c h by t h e sump pumps. High l e v e l i n t h i s sump is annunciated. The f i r e alarm and s p r i n k l e r system is i n se.rvice and maintained by t h e ORNL f i r e department. C.

SURVEILLANCE

Surveillance of t h e MSRE s h a l l be adequate t o prevent t h e development of any condition t h a t would threaten personnel s a f e t y o r t h e continuity of other ORNL a c t i v i t i e s . Radioactive and f i s s i l e materials are s o contained and s i t u a t e d t h a t c r i t i c a l i t y i s prevented and t h e p r o b a b i l i t y of any s i g n i f i c a n t r e l e a s e t o

9 t h e environment i s extremely small.

The p o t e n t i a l s f o r increasing tempera-

t u r e and pressure i n t h e containment o r t h e development of o t h e r potentia l l y damaging conditions a r e l i m i t e d s o t h a t such conditions can arise only slowly, i f at a l l .

Thus t h e continuous presence of personnel at t h e reac-

t o r s i t e i s not required.

Surveillance t h e r e f o r e c o n s i s t s of scheduled

visits f o r data-logging and checking plus t h e continuous monitoring at t h e ORNL Central Waste Monitoring F a c i l i t y of key s i g n a l s f r o m t h e MSRE i n s t r u mentation. Each day a member of t h e ORNL Central Waste Monitoring Group s h a l l e n t e r t h e r e a c t o r b u i l d i n g t o make observations as required on a Daily Log Form.

During t h e l a s t week o f each month a q u a l i f i e d member of t h e Reactor

Division s h a l l make an inspection of t h e r e a c t o r b u i l d i n g , record d a t a , and make checks as required on a Monthly Log Form.

Equipment and instrumenta-

t i o n s h a l l be maintained on a r e g u l a r schedule and as required by personnel of the ORNL Plant and Equipment Division and Instruments and Controls D i v i sion.

When any of a s e l e c t e d l i s t of v a r i a b l e s goes out of limits (prescribed i n Table B-1) alarms occur both i n t h e r e a c t o r b u i l d i n g and at t h e ORNL Central Waste Monitoring F a c i l i t y i n Building 3105.

When an alarm occurs,

one person from t h e group on duty at t h e CWMF s h a l l go t o t h e MSRE s i t e , e n t e r t h e main c o n t r o l room and take appropriate action t o r e s t o r e normal conditions. Corrective actions f o r foreseeable abnormal s i t u a t i o n s a r e prescribed i n Section E of t h e s e Procedures.

I n a d d i t i o n , experienced former members

of t h e MSRE operations s t a f f s h a l l b e designated and a v a i l a b l e on c a l l f o r a s s i s t a n c e i n meeting needs t h a t may a r i s e .

(See Fig. K-1.1

The ORNL P l a n t Protection Division provides p r o t e c t i o n a g a i n s t e n t r y by unauthorized personnel (

-W

Section J) and against f i r e damage.

DATA

Control-Room Log

Every s i g n i f i c a n t event o r a c t i o n a f f e c t i n g t h e r e a c t o r s h a l l be recorded i n a journal-type logbook that i s kept i n t h e control room.

Some

items w h i c h s h a l l be included i n t h i s l o g are: Equipment s t a r t e d o r stopped. Valves opened o r closed.

Switches o r breakers opened o r closed. Procedures o r p a r t s o f procedures s t a r t e d , worked on pleted.

o r com-'

Changes i n s e t p o i n t s of switches. Annunciations, and action taken. Abnormal conditions o r malfunctioning equipment found. Maintenance and other non-operational jobs done. The person who makes an observation, o r takes action, o r i s i n charge of any Job s h a l l be responsible f o r seeing that an e n t r y i s made.

Log

e n t r i e s s h a l l be s u f f i c i e n t l y descriptive f o r others t o understand and each s h a l l include t i m e , date, and t h e name of the person making the entry

Carbon copies of t h e logbook sheets w i l l be removed when t h e monthly l o g i s taken and w i l l be s t o r e d i n a f i l e cabinet i n Room 17, Building

7509.

Periodic Logs The Daily Log includes recording various readings as indicated on

Form D-1.

This form prescribes "Log Limits" and i d e n t i f i e s the appropriate

corrective action i f a variable i s outside these limits.

(Corrective

actions, i d e n t i f i e d on Form D-1 by a l e t t e r , are d e t a i l e d i n Section E of these Procedures. )

The Monthly Log, w h i c h s h a l l b e f i l l e d out during t h e monthly inspection, i s Form D-2.

This form requires reading t h e s a l t tank temperatures, I

t h e w a s t e tank l e v e l and

sump l e v e l s .

It a l s o has spaces f o r i n d i c a t i n g

that o t h e r routine monthly t a s k s have been done.

W-

Form D-l DAILY LOG -PHASE III

I 1 i i ! 4 I

See Section TX-4413

Form D-l DAILY LOG -PHASE III

'Location Description Primary Element

adjustdle #S*

TX-4413

See Section

E.,

and will

normally

be set lower than 6000

Form D-l DAILY LOG -PHASE III

St See Section TX- 4413

,hd

14 FormD-2 MONTHLYLOG (To be taken during the last week of each month)

NOTE: NOTIFY WASTEMONITORINGGROUPBEFORE STARTING What to do if out of Limits

Item

Jan or July

Feb Mar or or AUK Sept

April or act

May June or or Nov Dee

Initial

Review Daily Logs Review Console Log

-mm

3ecord TR-SD-1 Temps -1 - TE-FDl-19A <200째F (1 2 - TE-FDl-5 !

5- TE-~~2-5 6 - TE-FD2-15 7- TE-FFT-4 8 - TE-FFT-11 9 - TE-FFT-'T LO - TE-DTC-6 Ll - TE-RC-1

'm-4412

II II

0 11 1t <150째F 0

15 Form D-2 MONTHLYLOG

what.

to do if out of Limits --

Q Q Q Q 11

TX- 4412

Jan or July

Feb Mar or or Aug Sept

April or Ott

May June or or Nov Dee

Form D-2 MONTHLYLdG Inspect each of the following areas for hazards Tour the building. Punch~list any repairs or malfunctioning items or abnormal radiation. which are needed. Take cutie pie or chirper on tour. *

North Electric Service f

'Service

Area

Tunnel

Notify key holders (See Section J.) TX- 4412

of abnormal radiation

or contamination

areas.

ABNORMAL CONDITIONS

Whenever t h e l o g limits are exceeded o r an annunciation occurs, corrective a c t i o n i s necessary. trouble i s impractical.

To plan i n advance f o r all possible

A n attempt has been made t o a n t i c i p a t e some of

t h e more probable d i f f i c u l t i e s and suggest remedial actions.

"What t o do

i f out of limits" columns have been included i n t h e logs (Forms D-1 and

D-2) and i n t h e ' l i s t of annunciators (Table E-1).

Letters i n these columns

refer t o t h e suggested a c t i o n given i n Table E-2.

Power outages are cov-

ered i n Section F.

Table E-1

ANNUNCIATION

What t o Do If Out of L i m i t s

Annunciator No.

Switch No.

XA-SD-1

PS-572

High FD-2 Pressure

XA-SD-2

PS-589

High FT Pressure

XA-SD-3

PS-927

Low Ventilation Suction

XA-SD-4

PS-RC-1

High RC Pressure

XA-SD-5

RS-S1-A RS-S1-B

J J

Rs-S1-C

H i Stack Activity ( b y ) H i Stack A c t i v i t y (a) H i Stack A c t i v i t y (Iodine)

XA-SD-6

RS-565B RS-565C

H i RC Air A c t i v i t y H i RC Air A c t i v i t y

I I

XA-SD-7

RS-7001 RS-7012

H i Air A c t i v i t y H i Radiation

L L

XA-SD-8

IS-PRS

H i Pump Room Sump Level

*See NOTE:

Cause of Annunciation

Table E-2.

Loss of e l e c t r i c a l power w i l l a l s o annunciate a t t h e ORNL Central Waste Monitoring F a c i l i t y (Building 3105).

Table E-2 ABNORMAL CONDITIONS

Variable Out of L i m i t s

Code

Corrective Action

FD-1 Temp

I f TE-FDl-lgA

(TR-SD-1-1) i n d i c a t e s greater than 200°F, other FD-1 temperatures should be checked (TR-SD-1-2 & 3 ) . I f these a r e l e s s than 200°F, n o t i f y t h e MSRE Supervisor on t h e next regular work day. If a l l t h r e e temperatures a r e g r e a t e r than 200°F, n o t i f y him as soon as possible and check t h a t all h e a t e r s are o f f . If TR-SD-1 f a i l s , read t h e temperatures with a portable instrument and have TR-SD-1 repaired on t h e next regular work day.

FD-2 Temp

If TE-FD2-lgA (TR-SD-1-4) i n d i c a t e s g r e a t e r than 200°F, other FD-2 .temperatures should be checked (TR-SD-1-5 & 6 ) . If these are less than 2OO0F, n o t i f y t h e MSRE Superv i s o r on t h e next regular work day. I f all t h r e e temperatures a r e greater than 200°F, n o t i f y him as soon as possible and check $hat all h e a t e r s a r e o f f . I f TR-SD-1 f a i l s , read t h e temperatures with a portable instrument and have TR-SD-1 repaired on t h e next regular work day.

FFT Temp

I f TE-FFT-4 (TR-SD-1-71 i n d i c a t e s g r e a t e r than 200°F, other f l u s h tank temperatures should be checked (TR-SD-1-8 & 9). I f these are less than 200°F, n o t i f y t h e MSRE Supervisor on t h e next regular work day. I f a l l t h r e e temperatures are g r e a t e r than 200°F, n o t i f y h i m as soon as possible and check t h a t all heaters a r e o f f . If TR-SD-1 fails, read t h e temperatures with a portable instrument and have TR-SD-1 repaired on t h e next regular

DTC Temp

, ( TR-SD-L~O) , i n d i c a t e s g r e a t e r than 150°F, other drain tank c e l l temperatures should be checked (Patch panel 208 t o 212). If these are less than 15OoF, n o t i f y t h e MSRE Supervisor on t h e next regular work day. If they a r e g r e a t e r than 15OoF, n o t i f y

20 Table E-2 ABNORMAL CONDITIONS (continued) ~~

Variable Out of L i m i t s

Code ~~

Corrective Action

D (con't)

him as soon as possible and check t h a t all i n - c e l l heaters a r e turned n f f . I f TR-SD-1 f a i l s , read t h e temperatures with a portable instrument and have TR-SD-1 repaired on t h e next regular work day.

RC Temp

If TE-RC-1 (TR-SD-1-11) i n d i c a t e s g r e a t e r then 150째F, other r e a c t o r c e l l temperatures should be checked. (Patch panel 82 t o 90.) If these are l e s s than 150째F, n o t i f y t h e MSRE supervisor on t h e next regular work day. If they are g r e a t e r than 150째F, n o t i f y him as soon as possible and check t h a t a l l i n - c e l l h e a t e r s a r e turned o f f . If TR-SD-1 f a i l s , read t h e temperatures with a portable instrument and have TR-SD-1 repaired on t h e next regular work day.

RC Press.

If PI-RC-A indicates g r e a t e r than 0.5 p s i g o r less than -2 p s i g o r i f XA-SD-4 annunciates, check i n t h e vent house t h a t HCV-565 and V-565A, C , and D a r e open. If n o t , push r e s e t buttons on RE-565 B & C i n t h e control room and open t h e hand valves. If t h e pressure is . s t i l l out of limits and c e l l air a c t i v i t y is normal, vent t h e c e l l by opening V-955 A and B i n t h e s e r v i c e tunnel. After about 30 minutes, close V-955 A and B. Notify t h e MSRE Superv i s o r on t h e next regular work day. If PI-RC-A o r XA-SD-4 f a i l s , have it repaired on t h e next regular work day. If both f a i l , n o t i f y t h e MSRE Supervisor as soon as possible.

FD-2 Press.

If PI-572B reaches 2 p s i g o r XA-SD-1 annunciates, vent t h e drain tanks t o t h e stack by opening V-561 and V - 5 6 2 ~i n t h e vent house. When t h e pressure i s 0 t o 1 p s i g , close V-561 and ~-562A. Notify t h e MSRE Supervisor on t h e next regular work day. I f t h e pressure reaches 5 p s i g , n o t i f y t h e MSRE Supervisor as soon as possible. If PI-572B o r XA-SD-1 f a i l s , have it repaired on t h e next regular work day. If both f a i l , n o t i f y t h e MSRE Supervisor as soon as possible.

21 Table E-2 ABNORMAL CONDITIONS ( continued) ~~

Code

Variable Out of L i m i t s

Corrective Action

FP Press.

I f PI-589A reaches 0.5 p s i g o r i f XA-SD-2 annunciates, vent t h e f u e l system t o t h e s t a c k by opening V-522A, v-561, and V-562~ i n t h e vent house. When t h e pressure i s 0 t o 0 . 1 p s i g , close V-522AY v-561, and V-562A. Notify t h e MSRE Supervisor on t h e next r e g u l a r work day. If t h e pressure reaches 5 p s i g , n o t i f y t h e MSRE Supervisor as soon as possible. If PI-589A o r XA-SD-2 f a i l , have them repaired on t h e next r e g u l a r work day.

RC A c t i v i t y

If RI-565B o r C reach annunciates, ( o r i f c l o s e V-565~ i n t h e t h e MSRE Supervisor work day.

Stack A c t i v i t y

I f RI-S1-A, B y o r C i n t h e a u x i l i a r y c o n t r o l room i n d i c a t e abnormal s t a c k a c t i v i t y , i . e . >1500 c/m, n o t i f y t h e MSRE Supervisor on t h e next r e g u l a r work day. I f any exceed 6000 c/m, n o t i f y him as soon as possible. If any instrument should' f a i l , r e p a i r s should be made as soon as possible.

Ventilation

I f FI-S1 i s less than 0.4 i n . H 2 0 ( - 15,000 cfm) o r i f PI-927A i s l e s s than 1.0 i n . H 2 0 vacuum, o r i f PI-927A annunciates on XA-SD-3, check t h a t one s t a c k fan i s operating properly and t h e r e i s a good flow of a i r i n t o duct 935 i n t h e southeast corner of t h e high bay. If v e n t i l a t i o n i s adequate, n o t i f y t h e MSRE Supervisor on t h e next r e g u l a r work day. If n e i t h e r s t a c k fan i s i n operation, o r if v e n t i l a t i o n flow i s low, start t h e a l t e r n a t e s t a c k fan as follows: Stop both s t a c k fans from t h e c o n t r o l room. Open t h e discharge damper on t h e s t a c k fan t o b e operated (Damper 925 f o r SF #1 - west and damper 926 f o r SF #2 e a s t ) . Close t h e discharge damper

20 mR/hr o r i f XA-SD-5 t h e instruments f a i l ) vent house and n o t i f y on t h e next r e g u l a r

Table E-2 ABNORMAL CONDITIONS (continued)

Code

Variable Out of L i m i t s

K (continued)

Personnel Monitors

Corrective Action (926 o r 925) on t h e other s t a c k fan. S t a r t t h e desired s t a c k fan. (It m a y b e necessary t o energize t h e proper breaker i n t h e switch house. This i s G3-24 f o r SF #1and G4-34 f o r SF #2. Notify t h e MSRE Supervisor on t h e next regular work day. I f t h e above does not c o r r e c t t h e d i f f i c u l t y , n o t i f y t h e MSRE Supervisor as soon as possible. I f any of t h e instruments f a i l t o f'unction, have them repaired on t h e next r e g u l a r work day. I f RI-7001 i n d i c a t e s high air a c t i v i t y (>bo00 cpm) o r i f RI-7012 i n d i c a t e s high r a d i a t i o n (>25 mR/hr.) , have Health physics survey t h e area. If abnormal conditions are found,

n o t i f y t h e MSRE Supervisor as soon as possible. I f instrument f a i l u r e occurs, rep a i r s should be made as soon as possible. Notify t h e MSRE Supervisor on the next r e a l m work day. M

WT Level

If WT l e v e l i s g r e a t e r than 100 inches, transf e r t h e contents t o t h e Melton Valley Waste S t a t i o n as follows: C a l l ORNL Waste S t a t i o n (Telephone 3-6234) and r e p o r t volume t o be pumped. When permission t o t r a n s f e r i s obt a i n e d , remove blocks and s e t valves as follows i n t h e Remote Maintenance P r a c t i c e C e l l : Open V-300. Close V-301, V-302, Start V-303, V-3O5Ay V-305BY and V-307. t h e w a s t e pumps. (It may b e necessary t o energize breaker G4-4 i n t h e switch house.) T h r o t t l e V-305A t o give flow acceptable a t Melton Valley Waste S t a t i o n . PI-305 should not exceed 35 psig. When desired amount has been t r a n s f e r r e d , s t o p pump. Close V-300 and 305A and replace blocks on remote maintenance p r a c t i c e c e l l . Record waste tank l e v e l s i n t h e console l o g (before and after t r a n s f e r ) .

hd-

23 Table E-2 ABNORMAL CONDITIONS (continued)

Code

Variable Out of L i m i t s

RC Sump

If LI-RC-C i n d i c a t e s a l e v e l g r e a t e r than 15 inches i n t h e r e a c t o r c e l l sump, j e t t h e water t o t h e waste tank as follows: Record LI-RC-C and w a s t e tank l e v e l i n t h e console log. Connect steam t o l i n e 332 on t h e west s i d e of t h e building. Connect instrument a i r o r nitrogen t o t h e valve operators of FCV-333Al and A2 and open them. Open t h e steam supply t o l i n e 332 and j e t t h e sump. When complete, remove steam supply and cap l i n e 332. Remove a i r o r Np supply t o FCV-333Al and A2. Record LI-RC-C and waste tank l e v e l i n t h e console log.

DTC sump

If LI-DTC-A1 i n d i c a t e s a l e v e l g r e a t e r than 15 i n . i n t h e drain tank c e l l sump, J e t t h e water t o t h e waste tank as follows: Record LI-DTC-Al and waste tank l e v e l i n t h e console log. Connect steam t o l i n e 342 on t h e west s i d e of t h e building. Connect instrument a i r o r nitrogen t o t h e valve operator of FCV-343Al and A2 and open them. Open t h e steam supply t o l i n e 342 and j e t t h e sump. When complete, remove steam supply and cap l i n e 342. Remove air o r N p supply to F C V - 3 4 W and A 2 . Record LI-DTC-Al and waste tank l e v e l i n t h e console log.

DC Sump

If t h e l e v e l i n t h e decontamination c e l l exceeds 1 5 i n . , pump it t o t h e waste tank as

Corrective Action

follows: Record t h e sump l e v e l and t h e w a s t e tank l e v e l i n t h e console log. Remove t h e blocks from t h e remote maintenance p r a c t i c e c e l l . Close V-300, V-302, V-307, and 30%. Open V-303B and V-301. Start waste pump .from RMF'C and pump DC t o WT. Stop pump and close V-303 and V-301. Record DC sump l e v e l , LI-DC and waste tank l e v e l i n t h e console log. '

24 Table E-2

ABNORMAL CONDITIONS (continued) ~~

Code

Variable Out of L i m i t s

Aux. Sumps

Corrective Action If t h e l e v e l i n any o f t h e a u x i l i a r y c e l l sumps exceeds 1 5 i n . , j e t t h e water t o t h e w a s t e tank as follows: Record t h e sump l e v e l and t h e waste tank l e v e l (LI-WT) i n t h e console log. Open proper j e t supply valves ( t h e s e are l o c a t e d i n t h e NE corner of t h e t r a n s m i t t e r room).

Level Element

J e t Supply Valves

Fuel Storage

LE-FSC

V-321, V-311B

Equipment Storage

LE-sc

Waste Tank

LE-WTC

Spare

LE-TC

V-317, V-311B V-315A, V-315B V- 319, V- 311B

Remote Maintenance Practice

None

V-315A, V-323

Cell

When j e t t i n g i s complete, close t h e valves and record t h e sump l e v e l and t h e waste tank l e v e l i n t h e console log.

PRS Level

â&#x20AC;&#x2122;

If t h e pump room sump l e v e l annunciates, check t h e pump room t o see i f it i s flooded. (Entrance i s i n t h e SE corner. of t h e high bay.) Do not e n t e r without t h e exhaust fan i n operation and another person on hand f o r emergency. If possible, check t h e f l o a t switches of both sump pumps. If t h e sump cannot be emptied with t h e pumps, t r y j e t t i n g t h e coolant d r a i n c e l l s m p (which connects with t h e pump room) using steam through l i n e s 309 and 310.

POWER OUTAGES

A power outage at t h e MSRE should not cause much d i f f i c u l t y and should not be hazardous.

An a l a r m w i l l occur at t h e ORNL Control Waste

Monitoring F a c i l i t y unless they a l s o l o s e power; i n t h a t case no a l a r m

w i l l occur u n t i l t h e i r power t r o u b l e i s corrected. When power i s a v a i l a b l e , a s t a c k fan should be s t a r t e d .

HCV-565

should be opened by pushing t h e r e s e t buttons on RE-565 B and C , and t h e high-bay CAM and monitron should be checked.

A l o g should be taken t o

assure t h a t everything i s within l i m i t s and t h a t nothing appears abnormal i n t h e area.

Check t h a t t h e r e i s no water i n t h e pump room (observe

from 852 l e v e l ) .

Freeze p r o t e c t i o n should be considered i n t h e winter.

The MSRE supervisor should be n o t i f i e d on t h e next regular work day.

ANNUALTASKS

The f u e l and flush salt i n t h e drain tanks w i l l be heated once a year t o recombine fluorine.

An annual check w i l l b e made t o determine t h a t a l l

valving and e l e c t r i c a l switches are i n t h e proper position, t h a t standby equipment w i l l operate i f needed and t h a t t h e annunciator and control switches have t h e proper s e t p o i n t s .

The following check lists are used

t o accomplish t h i s .

Init. 1.

Date/Time

Recombine Fluorine by Heating t h e Drain Tank 1.1

Close switches 1 7 i n Panel -1-1, s w i t c h e s 1 6 and u i n Panel FD-2-1, and switches 1 6 and 11 i n Panel FFT-1 (North end of 849 l e v e l ) and energize Breaker G5-BB.

1.2

Push FD-1-1, FD-2-1, and FFT-1 "ON" buttons and raise o r lower s e t t i n g s t o g e t approximately 9 amps on t h e heaters (HCP-8).

1.3

Open and leave V-561 and 5628 open t o vent t h e drain tanks.

1.4

Record temperatures d a i l y i n Table G l u n t i l t h e salt has been above 300째F f o r a t l e a s t one week (do not exceed 5OOOF).

1.5

Turn h e a t e r s o f f and open switches 1 7 i n Panel FD-1-1, switches 1 - 6 and 11 i n Panel FD-2-1, and switches 1 6 and 11 i n Panel FFT-1 and rack out Breaker G5-BB. Close v-561 and ~-562A.

1.6 1.7 NOTE:

Record temperatures d a i l y i n Table G l u n t i l temperatures are less than 250째F.

Add helium as necessary through V-518A t o keep FD-1 pressure between 0 and 2 psig. (See G 3 f o r vdving )

G-

27 Table G-1

Temperature Readings r

LJ Init.

Pressure T e s t of t h e Reactor and Drain Tank C - 1 1 2.1

Connect t h e reference s i d e of t h e hook gage i n t h e t r a n s m i t t e r room t o t h e i n - c e l l reference volume. (Penetration A-27 i n t h e NESA.) Open t h e hook gage equalizer valve.

2.2

Connect t h e other s i d e of t h e hook gage t o t h e drain tank c e l l (Penetration A-5 i n t h e NESA).

2.3

Close HCV-565 using handswitch i n t h e control room.

2.4

Connect a portable diesel air compressor t o l i n e 342 at t h e w e s t s i d e o f t h e b u i l d i n g ( 840 l e v e l ) .

2.5

Pressurize t h e c e l l through l i n e 342 t o approximately 6 psig* per PI-RC-A i n t h e c o n t r o l room. As t h e c e l l i s pressurized, note t h e pressure at which PS-RC-1 annunciates on XA-SD-4. psig. If t h e a l a r m does not occur between 0.5 and 1.5, t h e switch should b e reset. Record f i n a l s e t t i n g psig.

2.6

Disconnect t h e compressor from l i n e 342, cap t h e l i n e and soap check.

2.7

Close t h e hook gage equalizer valve. Record and p l o t t h e hook gage reading and PI-RC-A once per s h i f t u n t i l t h e leak rate i s established (minimum of 48 h r s ) . Acceptable leak rate i s 400 s c f d at 5 psig. U s e t h e following formula f o r calcul a t i n g t h e l e a k rate.

L = 1000 t where

2.8

= leak rate i n standard cu f t . per day AP = change i n pressure during t e s t i n inches of w a t e r (from t h e hook gage) t = duration of t h e t e s t i n hours. L

When t h e t e s t i s complete, open t h e hook gage equalizer valve.

Do not exceed 10 psig.

Date/Time

(cd

Init.

2.9

Open HCV-565 and vent t h e c e l l s t o atmospheric pressure.

2.10

Disconnect t h e hook gage and cap t h e l i n e s a t penetrations A-5 and A-27 i n t h e NESA.

FD-2 and FP Pressure

(To b e done a f t e r d r a i n tank temperatures have cooled below 250째F following t h e f l u o r i n e recombination.)

3.1

Connect a nitrogep cylinder with regulator t o

V-518G i n t h e vent house and check t h a t f i t t i n g does not leak. 3.2

Check t h a t t h e a u x i l i a r y charcoal bed i n l e t valve 561 i s closed and V-522B i s closed.

3.3

Open V-522AY and V-518AY B 1 , C 1 , F, and G and p r e s s u r i z e systems u n t i l PS-589 annunciates on 0.6 p s i g on XA-SD-2 p s i g . (Do noi exceed PI-592B.)Adj&t s e t p o i n t i f necessary t o 0.4 t o 0.6 psig. Record f i n a l s e t t i n g psig.

3.4

Close V-522A &d p r e s s u r i z e d r a i n tanks u n t i l PS-572 annunciates on XA-SD-1 psig. (Do not exceed 2.5 p s i g on PI-572B.) Reset PS-572 t o 1 . 5 t o 2.5 p s i g i f necessary. Record f i n a l s e t t i n g psig.

3.5

Close v - 5 1 8 ~B1, ~ C 1 , F, and G and remove nitrogen cylinder and cap l i n e a t 5 1 8 ~ .

3.6

Open v-561 and v - 5 6 2 ~ and vent DT's t o atmosp h e r i c pressure.

3.7

Then open V-522A and vent FP t o atmospheric pressure.

3.8

Close V-522AY V-561, and ~-562A.

Ventilation System

4.1

Record FI-SI i n . H20 (should be g r e a t e r than .5 i n . H x P 1 - 9 2 7 A i n . H 2 0 (suction should be more than 1.5 i n . o f water). Record which s t a c k fan i s i n s e r v i c e

Date/Time

I n i t . Date/Time 4.2

4.3

Stop both stack fans and note pressure a t which PS-927A annunciates on XA-SD-3 i n . H20. If necessary, r e s e t PS-927A t o -0.9 t o -1.1 i n . of water as indicated on PI-927A. Record f i n a l setting i n . H20.

Manually switch dampers t o operate a l t e r n a t e s t a c k fan. Damper 925 should be open t o operate SF-1 West. Damper 926 should b e open t o operate SF-2 East.

4.4

S t a r t other stack fan and record FI-S1 in. H20 (should be g r e a t e r than .5 i n . H 2 0 ) and PI-927A i n . H20 (suction should be g r e a t e r than -1.5 i n . water). Record which s t a c k f a n i s i n s e r v i c e It may be necessary t o energize t h e proper breaker i n t h e switch house. This i s G3-24 f o r SF #1and G4-34 f o r SF #2.

NOTE:

4.5

Set up f o r and put SF-1 i n service. breaker G4-34.

Open

RC Air Activity

5.1

Check that alarm s e t t i n g s on RS-565B and C a r e 20 mR/hr by pressing t h e alarm buttons. Adjust i f necessary. A d j u s t c a l i b r a t e t o 0.3 mR/hr.

5.2

Have a Health Physicist i n s e r t a source i n l e a d shieldi n g around RE-565B i n t h e vent house and note t h a t XA-SD-5 annunciates and t h a t HCV-565 closes. (Observe valve located below t h e g r a t i n g i n t h e north s i d e of t h e vent house.)

5.3

5.4

5.5

Remove source, reset RS-565B i n ACR and note t h a t

HCV-565 opens and XA-SD-5 c l e a r s . Have a Health Physicist i n s e r t a source near ~ and note that XA-SD-5 annunciates and t h a t HCV-565 closes.

~ 5 6 5 ~

Remove source, r e s e t RM-565~ i n ACR and note t h a t HCV-565 opens and XA-SD-5 c l e a r s .

sump Pumps

Two people a r e required f o r t h e following. Be Sure t o t u r n on t h e blower and & l o w ’ . t o ’ ~ ’ , f o about r 5 minutes before entering t h e pump room.

Init.

6.1

Add water t o t h e pump room sump. When sump pump "A" s t a r t s , physically hold t h e f l o a t switch on sump pump "A" down.

6.2

Note t h a t sump pump "B" starts and LS-PRS annunciates on XA-SD-8 (before t h e floor i s flooded) s t o p adding water.

6.3

Release both pump f l o a t switches and note t h a t annunciation c l e a r s and both pumps s t o p when sump l e v e l i s normal.

Miscellaneous The following miscellaneous checks should be comp l e t e d annually.

7.1

Check t h a t equipment valves, switches, e t c . as i n d i c a t e d i n Table G-2.

7-2

Check r e s u l t s of annual DOP t e s t o f s t a c k f i l t e r s .

7.3

Review results of monthly s t a c k monitor checks,

7.4

Review r e s u l t s of monthly personnel r a d i a t i o n monitor checks.

7.5

Review l i s t of programmed maintenance being done and r e s u l t s of previous y e a r ' s maintenance work.

are

Date/Time

32 Table G 2 Miscellaneous Equipment Check

33 Table G 2 Miscellaneous Equipment Check ( continued)

Location

What t o Check

Required Condition

Check when Complete

MAINTENANCE AND REPAIRS

Operating equipment which f a i l s should be repaired as soon as possible.

The urgency depends upon t h e consequences.

Table E-2 l i s t s most

of t h e possible process r e p a i r s and d e l i n e a t e s t h e importance of each. Repairs w i l l be done only with t h e approval o f t h e ORNL Central Waste Monitoring Group, t h e MSRE Mdntenance Supervisor, o r t h e MSRE Supervisor ( o r h i s representative).

The person i n i t i a t i n g t h e request f o r r e p a i r s

w i l l be responsible f o r t h e s a f e t y o f personnel and t h e f a c i l i t y . During regular working hours a Punch L i s t form (FORM H-1) w i l l b e

f i l l e a out and given t o t h e Maintenance Supervisor (Fig. K-1) who w i l l expedite t h e r e p a i r s . Any deviation from t h e punch l i s t should be approved by t h e requestor.

When t h e work i s complete, t h e punch l i s t w i l l be re-

turned t o t h e Maintenance Supervisor who w i l l b e responsible f o r e n t e r i n g all d e t a i l s i n t h e console l o g and f i l i n g t h e completed punch l i s t i n

Room 17, Building 7509. On other s h i f t s , t h e ORNL s h i f t supervisor s h a l l arrange t o have t h e r e p a i r s made and s h a l l be responsible f o r g e t t i n g t h e d e t a i l s recorded i n t h e console log. Most of t h e programmed maintenance w i l l b e done during t h e l a s t week of each month when t h e monthly log i s being taken.

Permission m u s t be

obtained f r o m t h e Maintenance Supervisor, t h e MSRE Supervisor, o r h i s r e p r e s e n t a t i v e before doing these.

N o modification w i l l be made t o t h e f a c i l i t y without t h e approval of t h e MSRE Supervisor o r h i s supervisors.

REMOVAL OF EQUIPMENT OR INSTRUMENTATION

Equipment and instrumentation needed f o r t h e i n t e r i m s t o r a g e of t h e f u e l o r f o r t h e f u t u r e t r a n s f e r o r processing of t h e f u e l w i l l b e r e t a i n e d intact.

Other things may be removed i f needed after obtaining t h e approval

of t h e MSRE Surplus Property Custodian, t h e MSRE Supervisor, o r A s s i s t a n t MSRE Supervisor. ORNL-SPP-37).

A l l ORNL procedures w i l l b e s t r i c t l y adhered t o (see

I n addition an MSRE Property Transfer Form 1-1, and Punch

W-

35 Form H-1.

MSRE PUNCH LIST

Priority

Requested by :

Location Equipment, Line No.,

Date

etc.

Description of Work t o be Done:

Precautions : L

Estimated Cost: Approval to proceed:

De scribe work done i f d i f f e r e n t from above :

Job Canpleted and Accepted by:

TX-4410

Date:

Form 1-1.

MSRE SURPLUS EQUIPMENT TRANSFER

Item:

Tag No.

Quantity and Units: Brief Description:

Location at MSRE: Property No. : XRequested by: For use in:

Date : MSRP;

Other (specify)

Charge removal costs to:

When needed:

Trans fer approved by :

Date :

Item received by:

Date :

m-4411

hr L i s t , Form H-1,

w i l l be f i l l e d out f o r each i t e m o r group of items re-

A f i l e of t h e s e w i l l be maintained i n Room

moved.

17, Building 7509.

If s p e c i a l precautions a r e necessary, these should b e described f u l l y

on t h e Punch L i s t . J.

ACCESS CONTROL

A s indicated i n Fig. B-2, an %foot l i g h t e d s e c u r i t y fence completely

encloses a compact area immediately surrounding t h e MSRE buildings.

Two

gates ir+ t h e fence (North and West Gates) open onto Melton Valley Drive

( a road posted as "Official U s e Only").

The other two gates and t h e o f f i c e

building door a r e i n s i d e t h e controlled-access HFIR-TRU-TURF area.

All

four gates and t h e o f f i c e door w i l l normally b e kept locked. On t h e o f f i c e door and on each of t h e four gates i s a sign of t h e form indicated below, where t h e blanks contain t h e names and phone nuuibers of (1) t h e MSRE Superv i s o r , ( 2 ) t h e Assistant MSRE Supervisor, (3) t h e MSRP Associate Direct&, - -_

__ ____

CONTROLLED ACCESS AREA DO NOT ENTER WITHOUT PERMESSION t

Persons Authorized t o Give Permission:

I !

i Normal entrance t o t h e MSRE.Area w i l l . on t h e HFIR Access Road, Gate o r t h e South Gate.

en through e i t h e r

he guard gate f f i c e door, t h e E a s t

Keys t o t h e door and t h e s e two gates w i l l be is-

sued t o a l i m i t e d nuniber of people, including t h e MSRP Associate Director, t h e MSRE Supervisor, t h e MSRE Surplus Property Custodian, t h e Assistant

MSRE Supervisor, t h e MSRE Maintenance Supervisor, t h e ORNL Waste Monitoring Group, and t h e ORNL S h i f t Supervisors.

38 The North and West gates w i l l have security-type locks which are controlled by t h e ORNL Guard Department.

Only a l i m i t e d number of people

w i l l be authorized t o have t h e Guard Department open these.

These w i l l

include t h e MSRP Associate Director,' t h e MSRE Supervisor, t h e MSRE Asst. Supervisor, and t h e ORNL Shift Supervisors.

These gates w i l l not be l e f t

open without a guard i n attendance. There w i l l be r a d i a t i o n and contamination outside of t h e containment cells.

Where required, Radiation and Contamination Zones w i l l be i d e n t i -

f i e d and protection provided as prescribed by ORNL procedures.

Monthly

r a d i a t i o n and s a f e t y surveys w i l l b e made t o assure t h a t no inadequately guarded hazards exist.

Those persons having keys w i l l b e advised of any

l i m i t a t i o n s on use of t h e a r e a , and it w i l l b e t h e i r r e s p o n s i b i l i t y t o

so advise anyone t h a t they admit t o t h e area.

ORGANIZATION AND CHANGES

The organization chart f o r t h e MSRE during Phase I11 i s s h m 4n Fig. K-1.

The MSRE supervisor has t h e prime r e s p o n s i b i l i t y f o r t h e area.

H e must approve of any changes i n t h e procedures o r modification of t h e facility.

A master up-to-date

copy of the procedures w i l l b e kept i n

Room 17, Building 7509. A l l changes w i l l b e i n i t i a l e d and dated.

I f sig-

n i f i c a n t modifications are needed, others i n t h e MSRP p r o j e c t w i l l be consulted.

39 MSRP Director

Associate MSRP Director

P. N. Haubenreich MSRE Supervisor

R. H. Guymon

Ass ist ant MSRE Supervisor A. I. Krakoviak

A d v i s ors

(former MSRE s t a f f ) General

Surveillance L. C. Lasher W. T. Newton

S h i f t Operators

J. R. P. A.

L. H. H. I.

Crowley Guymon Harley Krakoviak

Electrical T. L, Hudson

Maintenance

Mechanical

H. G. Kern

H. E. F e l t s C. T. Carney

M. Richardson R. S. Jackson

Instruments J. L. Redford R. W. Tucker

P a r t s and Supplies

L. P. Pugh

'bit

Remote Maintenance

MSRE Maintenance Supervisor Fig. K-1.

J. R. Shugart

MSRE Organization Chart (January, 1971)

REFERENCES

1. R. C. Robertson, MSRE Design and Operations Report, P a r t I , Description of Reactor Design, ORNL-TM-728 (Jan. 1965).

2. J. R. Tallackson, MSRE Design and Operations Report, Part 11, Nuclear and Process Instrumentation, ORNL-TM-729 (Feb. 1968).

3. J. R. Engel, B. E. Prince, and H. C. Claiborne, MSRE Design and Operations Report, P a r t 111, Nuclear Analysis, ORNLTM-730 (Feb. 1964). S. E. Beall, P. N. Haubenreich, R. B. Lindauer, and J. R. 4. Tallackson, MSRE Design and Operations Report, P a r t V, Reactor Safety Analysis Report, ORNL-TM-732 (Aug. 1964).

5. P. N. Haubenreich, J. R. Ehgel, C. H. Gabbard, R. H. Guymon, and Operations Report, P a r t V-A, Safety and B. E. Prince, MSRE Desi Analysis of Operation with g3U, ORNL-TM-2111 (Feb. 1968). I I

R . B. Lindauer, MSRE Design and Operations Report, P a r t V I I , 6. Fuel Handling and Processing Plant, ORNCTM-907 ( M a y 1965).

7. R. H. Guymon, MSRE Design and Operations Report, Part V I I I , Operating Procedures, ORNL!CM-908 (Jan. 1966).

8. A . N. Smith, MSRE Design and Operations Report, P a r t I X , Safety Procedures and Emergency Plans, ORNL-TM-909 (June 1965). 9.

E. C. Hise and R. Blumberg, MSRE Design and Operations Report,

Part X, Maintenance Equipment and Procedures, ORNLTM-910 (June 1968).

ORNL-TM-3253 I n t e r n a l Distribution 1. R. G. 2. J. L. 3. T. A. 4. C. F. 5. S. E. 6. E. S. 7. E. G. 8. G. E. 9. R. B. 10. W. B. 11. J. L. 12. J. R. 13. S. J. 14. W. P. 15. J. R. 16. D. E. 17. L. M. 18. A. P. 19. W. R. 20. A. G. 21-30. R. H. 31. P. H. 32. P. N. 33. P. W. 34. H. W. 35. T. L. 36. R. S. 37. J. E. 38. S. I. 39. P. R. 40. J. J.

Affel Anderson Arehart Baes Beall Bettis Bohlmann Boyd Briggs Cottrell Crowley Distefano Ditto Eatherly Engel Ferguson Ferris Fraas Grimes Grindell Guymon Harley Haubenreich Hembree, Jr. Hoffman Hudson Jackson Kahn Kaplan Kasten Keyes 41. A. I. JSrakoviak 42. K e r m i t Laughon, AEC-OSR 43-45. L. C. Lasher 46. B. Lieberman 47 M. I. Lundin 48. R. N. Lyon 9

49 50

51 52

53. 54-55 56 57 58. 59 60. 61. 62. 63. 64. 65-67. 68. 69 70

72 73 74. 75. 76. 9

77.

78. 79. 80. 81. 82.

G. MacPherson E. MacPherson E. McCoy W. Magnuson C. McCurdy W. McIntosh, AEC-Washington E. McNeese A. J. Miller A. S. Meyer R. L. Moore E. L. Nicholson A. M. Perry L. P. Pugh J. L. Redford M. Richardson M. W. Rosenthal H. M. Roth, AEC-OR0 A. W. Savolainen R . W. Schaich Dunlap Scott M. Shaw, AEC-Washington J. R . Shugart M. J. Skinner W. L. Smalley, AEC-OR0 I. Spiewak D. A. Sundberg R. E. Thoma D. B. Trauger R. W. Tucker B. T. Walters G. M. Matson

H. R. H. D. H. T. L.

83.

J. R. W e i r

84. 85. 86. 87.

M. E. Whatley J. C. White G. D. Whitman Gale Young

88-89. Central Research Library 90.

Y-12 Document Reference Section

91-93. Laboratory Records Department 94. Laboratory Records Department (RC) External D i s t r i b u t i o n

95-96. 97 93.

99. -

Division of Technical Information Extension (DTIE) Laboratory and University Division, (ORO) A. Houtzeel, 176 Second Avenue, Waltham, Mass. 02154 R. C. S t e f f y , Jr., 303 Power Building, Chattanooga, Tenn. 37401