ML19308E171
| ML19308E171 | |
| Person / Time | |
|---|---|
| Site: | Crystal River, 05000303  |
| Issue date: | 01/26/1968 |
| From: | Moore V US ATOMIC ENERGY COMMISSION (AEC) |
| To: | Boyd R US ATOMIC ENERGY COMMISSION (AEC) |
| References | |
| NUDOCS 8003240697 | |
| Download: ML19308E171 (5) | |
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'R. Boyd,' Assistaat. Dimetor for-henctor. Projects -
JAN 5 6.E
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S. IAviDS, Assistant Director'for Reactor.
Technology, naL p/
V. M ore,. Chief Instru=entation & Powr TschelnEy Branch, DEL FIDRIDA FCER CORKRATICH, CHIS2AL RIVER EJCILUt GMEiATIUG PLWf (UNITS 3 & 4), D0cr2T 50-302/303; QUESTICIS RP.L4TIDG TO IltSTRUHZNTATION
& CONTROL IL2T3:DRL: TAI - ItT-341 This is to sub:: Lit questions that were infomally pmvided by For. T. A. Ippolito on December 8,1967, as well as those he orally asked the applicant during the meeting held on January 5,1968.
The cttached list does not include questions on tha raaintica :::cnit.cring syster: and the electric pour system cince tbc deceription of these systern is urdercping revisicn.
5 a;i.,licant's design propcacs to tra c _i=ini ca.oer of instrc:.cnt cNL nale for both protection and centrol purpocca.
h ettccini list of ques;. ions requat: t;.as the decist be evaluated with recpect to the proposed P Otmer' rd, J' -% Pc.rer F:mtection Systers which conditionally per:-ita tre uso of inntr.=ent c"-
+ for both protection e.nd control.
T.cvaver, in licht of : 1.CBS's Diablo Canyon lecter, tra npplicant should alco evalrate his decip :ith the rcre reuT,rictive position Man oy u.-s 1.03S.
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QUESTICIE REIATr;G TO CRYSTAL 2rG UNITS 3 & 4, N 50-302/303 1.
The ISAR contains a number of inconsintencias. - Will you please asolve the inconsistencies listed below:
A.
Fece 7-5 does not a6 ras with Fig. 7-2 vith respect to tha power supplied to the undervoltage cells of the ocmm circuit breakers.
B.
Fig. 3-66 does not agree with F16 3-68 with respect to vtather ainsle phase AC or DC power vill be used as LTjut to the roi drive povar supply.
C.
On Face 9-20 of the ~ REAR it in stated that the surce ta:2 j
cvarflow in' diverted to the Red 'Jacte Syctem tr;cn receip*, of i
1 a re.liation alarm. Ficura 9-3 chaw that level instrument: are 1
used.
2.
ULT,D r0S01'.id.On Of CX:s, ions IA 12, pica perforn ein odynis Tc alxiv ttiat t1110 portion of the r.w: tor protection system mcta tale Sectica A.2 of the pmposed N 6teniard for Huclear Powcr Finnt Pmtection Syste.ns (II:E:I Stcninrd).
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3.
Tbc PSAR does not adcquately de.acribe the preWhnet design of the pover/ flow ina' m tation.j Please provide a moro detailed description.
Perform an analysis to stov that an indircet,.stepvise ::nnsure=ent of.-
ficy ta adequat: for plant aafety. Also, shov that une of flu.t &
flow-instatment channels for both pIr,tection aal control sets i
m section 4.7 of the pMposed IEEi; steamed.
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Picase provido a description of the protection system preli::ina:.y design to chov that the following sections'of the proposed IIZi!
titandard are satisfied:
Section 4.9 Capability for Sensor Checks Section 4.10 > Capability for Test as Calibration Section 4.11 Channel Bypass or Removal
' Section 4.12 Operating M aasas Sectica 4.13 Indication of %; cases Section 4.14 Accena to tbans for %paaninc.
Cection 4.15 lblt*qd.o Trip Settings Sectica 4.lo Accena to Trip Octtin6, C libration i: Test Pointo Les addressiv.d Section3 h.11, L Al, r.15, %2so prcC: a listin0 Of all byponnes and varia h trip cattinge.
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Figura 7-11 shows that, t peratura an1 prescuro insta:n: t channels are used for both protection and control of the plaat, Shov that the deci6n of these channals mets Section 4.7 of the proposed M Steminrd.
~6.
Please provida $1stification for, the lack of instrument channel rMuniancy in the boric acid mix tank ami the borated water storage
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As::ening that it becomes necesc.ary to abc.cacn the control roca during plant cyrstion,'please describe the procedures and the instrumentation 9Q
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available (external to the control room)' or to bc provided to insure d
cold shutdown of both units.. Tbs evaluation should considor this espsbility with and without off-site pcvor. Also, prcvide a-description.of the pemissive circuit desig which will be pro-vided to insu m assinst the use of these extenal controls without the reactor operator's Ic:ovledge.
S.
As presently desiped, the flu level of ecch.v. ar rer.se catectcr (12 in all) to not indicated to the operator. ?lcase perform an
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9 We bellava that diternity of ecercency cer: ecoling actuatica sig.nl is ecc:ntial.
Please indicata viet cir.nces vill bc.d.a,o pmvidc divorcity.
10.
In Cectica 7 af tM 202. it la stated ter all inctnmentation vill be subjected to " Qualification Testa." Please provido a acceripticn of these tests, b
11.
Pleare identify thcee equip:2nte and cc=penects loccatcd in the prira:7 contairamat which am reluinni durire cad subecquent to a D2?. anc.
descrits the tests which will bo pc:-fbrned en each of theso ite::a to incurs ticir avnilmM"t;r in a cc2bined hi6h ba=1dity, pressure,
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ventilaticn system vill be en=11y controlled.
Please justify the lack of autcastic controls for the eenrgency operation of this system.
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