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)

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m Revise AC 7.4. as follows:

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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:

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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.

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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-

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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

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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

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part of the l'~'tatics on individual dese 6 20.101.

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

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of radioactive =atert by da use of p;ccess or other engineeri:g

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. 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

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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

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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

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TE27Z NOT1*2N 1

Sea da.following sy=bols:

C7: continuous flev

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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

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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

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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:

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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

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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.

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Por: St. Vrain #1

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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:

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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

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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.

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

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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.