ML20002E095
| ML20002E095 | |
| Person / Time | |
|---|---|
| Site: | Farley  |
| Issue date: | 01/20/1981 |
| From: | Clayton F ALABAMA POWER CO. |
| To: | Schwencer A Office of Nuclear Reactor Regulation |
| References | |
| NUDOCS 8101260350 | |
| Download: ML20002E095 (3) | |
Text
(O Alabama Power Company 600 North 18th street Post Office Box 2641 Birmingham, Alabama 35291 Telephone 205 250-1000 F. L CLAYTON, JR.
senior Vice President Alabama Power the southem eectnc systen January 20, 1981
~
Docket No. 50-348
'lo. 50-364 Director, Nuclear Reactor Regulation U. S. Nuclear Regulatory Comission Washington, D. C.
20555 Attention: fir. A. Schwencer Gentlemen:
As requested by NRC staff in recent telephone conversations, attached are proposed changes to Table 2.3-10 of the Farley Nuclear Plant FSAR which reflect the current instrumentation on the meteoro-logical tower. This proposed change will be incorporated into the next amendaent to the FSAR. Changes are indicated by a vertical bar.
If you have any questions, please advise.
Yours very truly, k
du F. L. Clayton,(,Jr.
FLC/HRF:de Attachment cc: fir. R. A. Thomas fir. G. F. Trowbridge fir. L. L. Kintner Mr. W. H. Bradford l/
3101260 W Ys
l t
i O
TABLE 2.3-10 (Sheet 1 of 2)
WEATHER INSTRUMENTATION AT FARLEY SITE Approximate Height Above Sensed Recorded Tewer Vase (ft)
Parameter Parameter Instrument Characteristice
-Getund Rainfall Rainfall C11 met Model 0501 Accuracy 1/2% of full scale Grtund Solar Solar Pyrometer (Climet 503-1) - Responds to radiation radiation wave lengths of 0.32 to 2.5 microns 32.8 Wind speed
- Wind speed Climet Model WS-Oll-1 (speed) - Accuracy and wind and wind of 10.15 mph or 1% of full scale, which-direction direction ever is greater. Response distance con-stant is 5 ft; vane has 1 mph threshold and damping ratio of 0.4.
Climet Model 012-10 (direction) - Accuracy 23 degrees, linearity 21/2% of full scale.
32.8 Horizontal Horizontal Bivane Climet Model 012 Accuracy 3 2
and eleva-and eleva-degrees, linearity 11/2% of full scale tion angle tion angle
' -35 Temperature Ambient EG and G Model 1103-M thermistor in temperature aspirated shield - Accuracy 0.5F over 1
range of 0-100F.
35 Dew point Dew point EG and G Model 1105-M - Accuracy 0.5 F above dew point of -20 F - Response 3 F per second above 32 F.
35 Temperature Reference Matched pair thermistors in aspirated j
for AT solar radiation shield - Accuracy 10.15C.
i 35 Temperature ** Reference Single thermistor in aspirated solar for AT radiation shield - Accuracy 10.15C.
100 Temperature ** T
-T Thermistor in aspirated solar radiation 100 35 shield - Accuracy 10.15C.
i 150 Wind speed
- Wind speed Same as 32.8-ft level given above.
and wind and wind direction direction 200 Temperature
- T
-T Thermistor in aspirated solar radiation 200 35 shield - Accuracy 10.15C.
- Mounted on S.E. side of the tower.
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TABLE 2.3-10 (Sheet 2 of 2)
Apprcximate Height Above Sensed Recorded Tower Base (ft)
Parameter Parameter Instrument Characteristics e
i 200 Temperature Ambient EG and G Model 110S-M Thermistor in temperature aspirated shield - Accuracy 20.5 F l
over range 0-100 F.
200 Dew point Dew point EG and G Model 110S-M - Accuracy 10.5 F l
above dew point of -20 F - Response 3 F per second above 32 F.
200 Temperature ** T
-T Thermistor in aspirated solar radiation 200 35 i
shield - Accuracy 20.15C.
l
- 6T aspirators are oriented North.
-