ML19327A274

Proposed Revisions to Tech Specs Sections 7.4 & 5.4.1, Eliminating Disparities Between Tech Specs & Code Requirements & Revising Calibr Method for Thermocouple

ML19327A274
Person / Time
Site:	Fort Saint Vrain
Issue date:	07/24/1980
From:	PUBLIC SERVICE CO. OF COLORADO
To:
Shared Package
ML19327A271	List: ML19327A270 ML19327A273 ML19327A274
References
NUDOCS 8008050188
Download: ML19327A274 (11)

Text

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Revise AC 7.4. as follows:

1) Part . (d) - Replace the second paragraph as indicated on page 7.4-2, and

[ delete steps 1,.2, and 3 on pages 7.4-2 and 7.4-3.

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2) Part (e) - Delete in. its entirety (pages 7.4-3 and 7.4-4) .

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3) Table 1 - Delete in its entirety (page 7.4-5).

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4) Table Notation - Delete in its entirety (pages 7.4-6 and 7.4-7) .

{ Reason for Change:

Eliminate any disparities between the Fort St. Vrain Technical Specifications

. and 10CFR20.103 and eliminate the need for any future revisions to AC 7.4 as a result of revisions to 10CFR20.103.

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7.4-2

c. Temporary changes to procedures of a. above may be made provided:

1. The intent of the original procedure is not altered.

2. The change is approved by two members of the plant manage-ment staff, at least one of whom holds a Senior Reactor Oper-ators License.

3. The change is documented, reviewed by the PORC and approved by the appropriate Superintendent within 15 days of implementation.

d. Procedures for personnel radiation protection shall be prepared con-sistent with the requirements of 10 CFR Part 20, and shall be ap-proved,. maintained, and adhered to for all operations involving personnel radiation exposure.

Respiratory protective equipment shall be provided in accordance with 10 CFR 20.103.

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DELETE THIS PAGE Fort St. Vrain #1 Technical Specifica icus A=end=en

16 - 11/24/76 page 7.4-3 l

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i f ca M m?isg such radioac:ive =a:erial for 40 hours4.62963e-4 days <br />0.0111 hours <br />6.613757e-5 weeks <br />1.522e-5 months <br /> a:

de parti =ent concentration values provided 6 Appe= dix 3, l l

Table I, cole n 1, of 10 Cya 20. I

1. Tor radicactive mater'al a designated "Sub" in de "!so pe" column of Appendiz 3, Table I, Col- 1 of 10 C7120, .he concen estica value specified is ~:ased upc= exposurt. Oc de =aterds' as an ex:er=al radiatien scurce. :divid *'

exposures to dese =a:era shall be accou=:ed fer as part of the l'~'tatics on individual dese 6 20.101.

a. Is all opers:1cus in Pich adequate l' # stien of . he '

- *-a' a:1:n of radioactive =atert by da use of p;ccess or other engineeri:g

. con::cis is i= practicable, the lice =see =27 pe=1: an i=dividual -

is a re.*::icted area a use respi:2::r7 p c active equip =e== :o l'~#: de #-b' m:'_m of airbo=a 'd' active ester d o' , p;cvided:

1. The l' ':s specified is d. above a:s so: exceeded.

1. laspi:20=:f procac.dve equip =en: is selected a=d used so that de peak conce==2:1:ns of airbone : adicactive matar'*' i=halei ~:y an #-d' ridual wearing de equip =en:

does so: creeed da per-'--: cenes==2_'~ values specified 1: Apped'r 3, Table T, Col- 1, of 10 C7120.

yo: da pc: poses of -' 'a subparag 17' n , de c= ce==stice of :ndicac.ive enza.ial .ha: is '-%' ed . ten respi:2:::s c

are vers may :e deram' ed ~:7 div'd' T the a=~ien:

at: borne cecce= Cat'. n by de p;ctec ics fac c; specified in Table I, appe=ded := **d* specif'ca.icn f:: .ie respiratory p ctac:'ve equip =e== vo=. If ie i=:sie of l radicactiv1Lis M:Q- doW M7 mms arge-gen-m

DELETE THIS PAGE ,' '

Fort St. Vrain #1 Technical Specifications

. Acend=en: 16 - 11/24/76 Page 7.4-4 to have been differe== dan :ha: 1:i:1,1117 esti=ated , de latar pa=:1:7 shall "ce used is evd.crd-e -la excesures.

3. n e licenses advises each resp kater user tha: he =ay leave the area at a=y time for relief from respira:or use is case of equipment =aliuse ion, physical or psychological disccm- .

forr, or any o:her condi. ion da: sigh: cause reduction 1:

the protection afforded the wearer. .,,

4 ne licensee =ain"'-= a respiratory pro:ec ive p cgram adequate to assura dat de requirs=e :s above are =et.

5. n a lice =see uses equip =ent approved by de U. S. Sureau of Mines u= der its appropria:a Approval Schedules as se:

forth i= Tabla I.

nose speed fica:1cus, win respect :o the previsions of 10 C.3.

20.103 shall be supersedes by adoption of proposed cha=ges :o 10 C72, 20.103, which asuld =ake -lis specifiestion 0.==ecessary. -

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kl.ETE THIS PAGE Fort St. Vrain #1 Technical Specifications A=end ent 16 - 11/24/76 Page 7.4-6 TE27Z NOT1*2N 1

Sea da.following sy=bols:

C7: continuous flev D: demand 37: negativa p sssura G.a., negativa phase during f4miacie:1

?D: pressura dama=d C1.a., always positive pressural 3.: recirc.:lat':g (closed circuhl 4 " Cal For purposes of +'= specifhat'c= da p;ctactic= fac c is a reasurs of da degraa of p ctac 'au afforded by a respirator, defined as de rat'.o of the conce==stice of at:5c :a radicactive =aterial cu:sida de resp'ratory p ccective equipman: to that hside the equipman: Cusually i=sida tha faceptacal cedar condi: ices of use. It is applied cc da ambient at:'orna: ecuca==ation to esticata de conce==ation i= haled by tha waarer accordhg =c de fc11cwi=g for=ula:

Concent:stics Inhaled - A=Lient Airborne Coneset= ache P:ccactice Fac:c C51 Tha procaccion fac:c s apply:

, (11 cely for tra1=ed d-d'viduals weart=g properly fh tad respirators used a d ~='--s' ed under supervisics is a well-pt =-=A raspirs=:7 p ccactive p cg:ss.

(111 for af -purif7 i ng respira:crs only *4an high afficiancy (abava 99.9% re:mval eff hiancy by U.S. 3urazu of Mises type diccc71 phthalata CCPl tast] par '~ $ a fil:ars a=d/or sor5snes appropriata :c he hasard are used i=

atacspheres :ac def'-'=c La cz7sen.

l l ("' l for a==csphar; agyl7icg raspirators cely ' den supplied 1 with adequa:a respirabia air I '

l 3 l Ixclud1=g radioac ive ec *-ats hac prese c an absorpth= or sub-esice l hazard. For =1-'- czida apprezi=acaly half of de 1=.aia occ==s by absorptic: 1 through ,.ha ski: so that an overall p:ccac ica fac:c: of sec sc:a ha=

approx 1=a:aly 2 is appropria:a when ac=osphera-supply 1=g :sspira:crs ars used to proeact agai=se =i-' - Mde. A1:-pu 1f71=g :sspfra: cts are toe :sec== ended for use against ::1:1== o*de. See also fcoc= cts 5, 3 12,, cone ,4 ? supphed-air sui:s and hoods.

Por: St. Vrain #1 DELETE THIS PAGE Technical Specifications A=end=en: 15 - 11/24/76

? age 7.4-7 T.A31.2 NO"ATION 4

Under c'd- cype only. No: recc= mended for use icere 1: =1ght be possible for the ambient at:bor=a ecuces=ation to reach instantaneous values greater than 50 times the pertinen values in Appendix 3, Table I, Cel"--- 1 of 10 C7R Par: 20.

5 Appropriata pro:ec.ics fac:c:s =ust be dera:=ined <'ag acccu== of the, design of the suit or hcod and i:s pe=eabdT * :7 Oc de ceu-' d-=-: under cceditices of use. No protectica fae:c: greats: dan 1,000 shall be used e= cap: as authoriced by the Cc= mission.

6 No app:cval schedules cu=S=:17 availabla for this equip =ent. Iquip=en =us:

be evalcated by *esting or on basis cf available cas: i=fc =atien.

7 Culy for shaven faces and whera =cH d g interferes with da se.al of tight-ft:-' facapiaces ap.1=s the skin. (Ecods and Suits are e=:ep:Sd.)

NOTZ 1: ?:ccactice fac:crs for respira crs, as =ay be =77 :--ed by de U.S.

3ureau of #-as or the Na- M' !ss-d:::a for Occupa:1ccal Safety and ?.Aald acOcrd**g cr approval schedules for respirators to protact aga1=s airbone radiccuclides, may be used to is exte==

. :ha: they do =c: exceed da protactice fac:crs listed i= -"- Tabla.

The protactics fac:c:s is dis Tabla =ay set be app;cpriata :=

circumstances where ch s - T- or oder respirator 7 ~m-=-ds exis:

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is addi dcn to radicactive ha ards. The selectics and use of

sspirators for such ci ==msez=cas shculd taka i=:c accou== app cvals of the U. S. Sureau of Minas or the Naciccal I=sti:::a for Cecupa.icnal Safety and ~aald is acec:da=ca vid its appt'-abla schedules.

NOT2 2: Radicac '_ve cou '"' ="ts for which da ecces=m-d-- values 1: Appa-d'~

3, Table I of 10 C71 Far: 20 are based on 12:a=al dose due :o ' 5 mi s-

.ica =ay, 6 addition, prasen: ex:a=al exposure hasards at hipar c=ncan=2:1cus. Cedar such cir==s:2=cas, ':ations on occupanc7

=sy have to be gove==ed by er:s=al dose ' .s.

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., Revise Table 5.4-1, MINIMUM FREQUENCIES FOR CHECKS, CALIBRATIONS, AND TESTING OF SCRA!! SYSTEM

" Method" of Channel Description 10, Function c. to cead:

Compare _-each thers couple output to a NBS traceable standard.

Internal test signal _ to adjust trips and indicators.

" Method" of Channel Description 15, Function c. to read:

Compare each thermocouple output to a NBS tracea'ule standard to adjust temperature trip point.

Revise Table 5.4-2, MINIMUM FREQUENCIES FOR CHECKS , CALIBRATIONS AND TESTING OF LOOP SHUTDOWN SYSTEM

":tethod" of Channel Description 7, Function d. to read:

Compare each thermocouple output to a NBS traceable standard.

Internal test signal to adj ust ~ trips and indicators.

, Reason for changes: P reviously, the stated method was to compare each thermo-couple output to a calibrated RTD. The necessity to calibrate the subject thermocouples in plant environments which do not permit use of a laboratory standard requires a change in the =ethod of calibration. The proposed method

- assures an acceptable calibration will be performed without direct use of a laboratory _ standard i the plant environments.