ML20024G388

Proposed Tech Specs Re Addl Containment Isolation Valve Being Installed as Part of Sys for Maintaining Constant Differential Pressure Between Torus & Drywell

ML20024G388
Person / Time
Site:	Monticello
Issue date:	03/11/1976
From:	NORTHERN STATES POWER CO.
To:
Shared Package
ML20024G381	List: ML20024G380 ML20024G385 ML20024G388
References
NUDOCS 9102110410
Download: ML20024G388 (4)

Text

• .

l -

1T4 U"

20 U TAPLE .5.7.1

>w DO ]

04 gg* PRIfMRY CCfCAIIC4EITT ISOLATION 09 t3 W Number of t OO Isolation Valve Identification Valves Maximum U83 Group Operating Normal M

@g" .

Inboard Outboard Time (Sec) Positicn 1 (J 4 1 Main Steam Line Isolation 4 4 3 I TI5 Open 1 Main Steam Line Drain 1 1 60 Closed 1 Recirculation Loop Sample Line 1 1 60 Closed 2 Drywell Floor Drain 2 60 Open 2 Drywell Equipment Drain 2 60 Open 2 Drywell Vent 2 60 Closed 2 Drywell Vent Bypass 1 60 Closed 2 Drywell Purge Inlet 2 60 Closed 2 Drywell and Suppression Chamber 1 60 Closed Air Makeup Shutdown Cooling Gyutem 1 1 120 Closed 2 l 2 Suppression Chamber Vent 2 60 Closed 1 6G Open 2 Suppression Chanber Vent Bypass Suppression Chambe:r to Drywell 1 60 Open 2

N2 Recirculation 153 REV 3 7/4.7

Table 3 7.1 Primary Containment Automatic Isolation Valves -

Permissible Isolation Group Isolation Valves Operating Nor-ml (Note 1) Application Inboard Outboard Time (sec) Pccition AO-2-80A A0-2-86A 3 <t< 5 Open 1 Fain Steam Isolation ~

A0-2-80B A0-2-86B AO-2-80C A0-2-86C AO-2-80D AO-2-86D Main Steam Line Drain MO-2373 MO-2374 t 160 Closed l

Ecactor Water Sample CV-2790 CV-2791 t <60 ,

Closed

(

j Dryvell F 4uipment Sump AU-2561A AO-2561B t 160 Open 2

Dryvell Floor Sump AO-2541A AO-2541B t <60 Open M

Torus Vent Bypass -

CV-238h t <60 Open g Torus to Dryvell N2 Beelrc -

CV-74hO t$0 6 Open E o

Torus Vent A0-2383 t $60 Closed y-

'Ibrus Vent -

AO-2896 t <60_

Closed f Dryvell Vent Bypass CV-2385 t $60 Closed Dryvell Vent AO-2386 t $60 Closed y Dryvell Vent -

AO-2387 t $60 Closed

'ibrus Air Purge Air Supply AO-2378 t 160 Closed p.

Closed s-Dryvell Air Purge Supply AO-2381 t 160 o Closed $

containment Air Purge Supply -

A0-2377 t$60 -

Closed N TIP Ball Valves ( 3) - -

Note 2 Nitmgen Pumpbsch Suction CV-7h36 t <(20 Open t>

Nitrogen Pu=pback Suction CV-7h37 t <60 Open $es 153 37/h.7 RE/

i f .

~

r Tnble 4.7,1 Nnticello Cbntainment Penetrations (continued)

CUEER BARRIER APlicable P Appendix INNER BARRIER Destable Bemtration J Type 'Ibst Designation Type ? Testable Designation 1YPc Desigration Description No CRD-31 5 Yes C CRD-3h 5 X-36 CRD llydrnulic Return X-37A - 3?D CRD Insert Lines (121) NWE (Note 5) -

5

- - - l X-39A - 38D CRD liithdraw (121) NWE (Note 5) -

5

- - - MO-2021 h Yes Drywell Spray B C i X-39A  !

MO-2023 h Yes

- - - MO-2TO h Yes X-39B Dryvell Spray A C MO-2022 4 Yes S "m

<a 18 -

NWE (Note 3)

X-40A-A-40D-F Instrumentation Yes CV-2791 9 Yes $

CV-2790 9 X lol Pecire loop B Sample C $

No XP 6 5 Yes @

XP-7 5 <+

X-42 Standby Liquid Contro] C

_ - 17 -

M X-43 47 Spare Penetmtions NONE

- ~

y CJ-7436 9 Ye8 2 Nitrogen Pumpbnck "

X-k8 C Cv-7437 9 Ye8 y Suction a

~ ~

~ -

X-b9A 49F Instru:uentation NNE (Note 3) 18 -

U X-50A - SOD Instnamentation NONE (h_ote 3) - - -

19 X-50E - SOF Instrumentation NONE (Note 8) -

E Instrumentation NWE (Note 3) 18 -

q X-51A - 51F 18 -

[5 X-52A - 52F Instrumcatation NWE (Note 3) w o

X X-99 mt Assigned NWE 'oI i

154H 37/h.7 asy

i e a

1. ' [

hble h.7.1 Bbnticello containment Penetrations (continued) .,

Penetration Applicable Appendix INNER BAIGIFR OEffER BARRI?R Designation Description J Type Test Designation Type Designation Iypee Testable Testable 4

1 X-202I Not Assigned NONE - - - - -

i i  !

X-203 Not Assigned- NWE - - - - - - 1 i: , t X-204A - 204D Torus' Ring Header NONE (Note 7) - _ - - - -

!- X-205 Torus Ventilation C s - - -

AO-2383 10 Yt s l

Exhaust CV-2384 9 Yeu I t AO-2896 10 Yes 9 CV-7440 9 Yes l L#o i

G t

s -

X-206A - 206D Torus Instrumentation e l NONE (Note 8) -- - - -

• 19 -

{

l X-207A - 207H Torus Vent Pipe Drains NONE (Note 7) - -

N '

j X-208A - 208H Relier Valve Discharge @ l NONE (Note 7) - - - - -

Pipes #

1 X-20)A - 209D Torus. Instrumentation 5 NOIE (Note 8) - - - -

19 -

20 X-210A j RHR and Core Spray B - e N M E (Note 9) - - - RHR-8-2 5 - "

} Test Line to '1brus l

y  ;

i MO-2OO7 4 -

g n [;

I-MO-2009 12 - tm  !

i  !  !

MO-1750 12 - I f 4

I a

CS-10-2 13 - se I

=

o r i '

Y i

D 4 >

1 ,

4 L

i e

^me f

3 7/4.7 15kJ i REV l i

.. .. ., . . . , . .