ML20141B697

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Proposed Tech Specs,Modifying Minimum Accuracy Stated in Table 3.3-8 for Instruments Used to Measure Wind Speed & Air Temp - Delta T
ML20141B697
Person / Time
Site: Millstone Dominion icon.png
Issue date: 05/08/1997
From:
NORTHEAST NUCLEAR ENERGY CO.
To:
Shared Package
ML20141B694 List:
References
NUDOCS 9705160006
Download: ML20141B697 (6)
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Text

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Docket No. 50-336 B16343 i

Millstone Nuclear Power Station, Unit No. 2 Proposed Revision to Technical Specifications i

MeteorologicalInstrumentation l

Marked Up Pages 1

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May 1997 i

9705160006 970500 PDR ADOCK 05000336 PDR.

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January 17,1996

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Table 3.3-8

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METEOROLOGICAL HONITORING INSTRUMENTATION

..w-INSTRUMENT MINIMUM MINIMUM CHANNELS INSTRUMENT LOCATION ACCURACY OPERABLE l

1.

WIND SPEED

a. Nominal Elev.142 ft. ('/3.3 m) i-9 4 0.22 m/:i;'-

1 a i.22 m/3::* -

1 0

b. Nominal Elev. 374 ft. (//V o, )

i 2.

WIND DIRECTION

! 5' 1

a. Nominal Elev.142 ft. [Y3,3 m)
b. Nominal Elev. 374 ft. (//V m) 1 5' 1

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3.

AIR TEMPEFATURE - DELTA T l.

a. Nominal Elev.142 ft.['/13 +)

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0. lS "I J C.Sc c (t /.o */) 1
b. Nominal Elev. 374 ft. (//y r)

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L i ) wmd Tye<J & J. 3 m/sn (S np );

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f o,23 m/sec' (o.S mph)

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(li) w.sJ Sor<J > d.2 in/su c'S ap ) ;

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$ /O '), of m easur) n/ac' Starting speed of anemometer shall be < 0.45 m/sec (l.Ooph)

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AmendmentNo.Mi!".

l MILLSTONE - UNIT 2 3/4 3-37 0178

December 18, 1990 INSTRUMENTATION BASES i

3/4.3.3.2 INCORE DETECTORS The OPERABILITY of the intore detectors with the specified minimum complement of equipment ensures that the measurements obtained from use of 1

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l this system accurately represent the spatial neutron flux distribution of the reactor core.

Removal and insertion of the incore Detectors does not l

constitute a CORE ALTERATION per Specification 1.12.

i 3/4.3.3.3 SEISMIC INSTRUMENTATION The OPERABILITY of the seismic instrumentation ensures that sufficient capability is available to promptly determine the magnitude of a seismic event evaluate' the response of those features important to safety.

This and capability is required to permit comparison 'of the measured response to that used in the design basis for the facility.

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3/4.3.3.4 METEOROLOGICAL INSTRUMENTATION j

The OPEPAFILITY of the meteorological instrumentation enst:res that

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sufficient meteorological data is available for estimating potential radisiion

'l doses to the public as a result of routine or accidental release of radioactive materials to the atmosphere. This capability is required to evaluate the need for initiating protective measures to protect the health and safety of _the i

This instrumentation is consistent with the recomendations of public.

Regulatory Guide 1.23 "Onsite Meteorological Programs,"

3/4.3.3.5 REMOTE SHUTDOWN INSTRUMENTATION g

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The OPERABILITY of the remote shutdown instrumentation ensures I

sufficient capability is available to permit shutdown and maintenance of HOT SHUTDOWN of the facility from locations outside of the control room.

This capability is required in the event control room habitability is lost and is i

consistent with General Design Criteria 19 of 10 CFR 50.

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a ecuea cics-I ki the msfram &hkn used k thom% av l-r<wp en ke ~ ale /h 7' Q" d wm ed sp erJ (wf en w,r) spe <J IS 9'<<M 5~ 2.2 m/src cf.9)}

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l MILLSTONE - UNIT 2 B 3/4 3-3 Amendment No. U, 49 l

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Docket No. 50-336 B16343 i

i i

Millstone Nuclear Power Station, Unit No. 2 1

Proposed Revision to Technical Specifications Meteorological Instruenentation i

Retyped Pages

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1 May 1997 j

Table 3.3-8 4

METEOROLOGICAL MONITORING INSTRUMENTATION I

INSTRUMENT MINIMUM MINIMUM CHANNELS INSTRUMENT LOCATION ACCURACY OPERABLE 1.

WIND SPEED i

a. Nominal Elev.142 ft.

(i) Wind Speed 5 2.2 m/sec (5 mph);

1 (43.3 m) 1 0.22 m/sec* (0.5 mph)

(ii) Wind Speed > 2.2 m/sec (5 mph);

i 10% of measured value*

b. Nominal Elev. 374 ft.

(i) Wind Speed 1 2.2 m/sec (5 mph);

I 4

(114 m) 0.22 m/sec* (0.5 mph) i (ii) Wind Speed > 2.2 m/sec (5 mph);

10% of measured value*

2.

WINO DIRECTION

a. Nominal Elev.142 ft.(43.3 m) 5' 1
b. Nominal Elev. 374 ft.(114 m) 5' 1

2 i

3.

AIR TEMPERATURE - DELTA T

a. Nominal Elev.142 ft.(43.3 m) 0.56*C (i 1.0*F) 1 1
b. Nominal Elev. 374 ft.(114 m) 0.56'C (i 1.0'F) 1 l

t J

Starting speed of anemometer shall be < 0.45 m/sec (1.0 mph).

l MILLSTONE - UNIT 2 3/4 3-37 Amendment No. JJ, JJJ.

0201 1

l b

INSTRUNENTATION am 3/4.3.3.2 INCORE DETECTORS The OPERABILITY of the incore detectors with the specified minimum complement of equipment ensures that the measurements obtained from use of i

this system accurately represent the spatial neutron flux distribution of the reactor core.

Removal and insertion of the Incore Detectors does not constitute a CORE ALTERATION per Specification 1.12.

3/4.3.3.3 SEISMIC INSTRUMENTATION The OPERABILITY of the seismic instrumentation ensures that sufficient capability is available to promptly determine the magnitude of a seismic event and evaluate the response.of these features important to safety.

This capability is required to permit comparison of the measured response to that used in the design basis for the facility.

3/4'.3.3.4 METEOROLOGICAL INSTRUMENTATION The OPERABILITY of the meteorological instrumentation ensures that sufficient meteorological data is available for estimating potential radiation doses to the public as a result of routine or accidental release of radioactive materials to the atmosphere. This capability is required to evaluate the need for initiating protective ' measures to protect the health and safety of the public.

This instrumentation is consistent with the recommendations of Regulatory Guide 1.23 "0csite Meteorological Programs," except for the recommendations regarding the minimum accuracies for the instrumentation used to monitor air temperature - delta T and wind speed (when wind speed is greater than

- 2.2 m/sec [5 mph]).

3/4.3.3.5 REMOTE SHUTDOWN INSTRUMENTATION The OPERABILITY of the remote shutdown instrumentation ensures that sufficient capability is available to permit shutdown and maintenance of HOT SHUTDOWN of the facility from locations outside of the control room.

This capability is required in the event control room habitability is lost and is consistent with General Design Criteria 19 of 10 CFR 50.

NILL 5 TONE - UNIT 2 B 3/4 3-3 Amendment No. 77, (7.

0282

.

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