ML20248B121

Rev 3 to 2BOA ENV-1, Operation During Tornado or Sustained Wind Conditions-Unit 2

ML20248B121
Person / Time
Site:	Byron
Issue date:	03/11/1988
From:	COMMONWEALTH EDISON CO.
To:
Shared Package
ML20248B106	List: ML20248B103 ML20248B121
References
2BOA-ENV-1, NUDOCS 8908090124
Download: ML20248B121 (5)

Text

g ;_ . .. - <

4 .. _ ._. n. _ . - m- ---_---

.~

a ll

• T l

,REV.-3 OPERATION'DURING TORNADO' 2 BOA-

.x OR SUSTAINED WIND CONDITIONS-UNIT 2 ENV-1

[

. e ._ ;

r p- - . _ _

l A' PURPOSE This procedure provides' actions required during tornado or sustained high wind conditions.

B SYMPTOMS OR ENTET CONDITIONS

1. The following are symptoms of high wind conditions:

o OUR-EM001 - 30'Ft Meteorological Tower Wind Speed. Indication, greater than 60' MPH. -

o OUR-EM012 - 250 Ft Meteorological Tower Wind Speed'and Direction Indication, greater than 60 MPH.

2. This procedure can be entered if:

o -The. station has received notice that winds in the area are in excess of 60 MPH.

o. The station has received notice that the area-is under a tornado watch.

o The switchyard operator reports wind generated missiles in the vicinity of the station.

4 -

'i

• i (0277E/0010E) APPROVED 8908090124 890801 MAR 11 1988

-PGR ADOCK 05000454 P PDC f_, _ _ _ ._ _ .__ __

B.O.S.R. ,

2 d.

REV, 3 OPERATION DURING TORNADO 2B0A .

OR SUSTAINED WIND CONDITIONS-UNIT 2 ENV-1 STEP ACTION / EXPECTED RESPONSE RESPONSE NOT OBTAINED --

i

. CAUTION DGs should NOT be operated in parallel with offsite power sources during high wind conditions.

• NOTE *

• With this procedure in effect, *

• notify the Station Director who will *

• evaluate for GSEP conditions per *

• BZP 200-A1, BYRON EMERGENCY ACTION *

• LEVELS.

• 1 CHECC 'F AT LEAST A TORNADO Go To Step 4. l WATC i 'S IN EFFECT FOR THE 3YRON SITE AREA 2 GEC < OFFS"TE )OWER TO I4KV ESF Perform the following:

30 SS ES AVA1AB _E:

o 7F in MODE 1 or 2,

• 345 KV Bus 13 alive light'i.IT ~5EN T GO TO 2BEP-0, REACTOR TRIP OR SAFETY INJECTION, while.

ontinuing with this procedure at Step 3.

-OR-o IF in MODE 3 or 4, THEN GD TO 2 BOA ELEC-4, LOSS OF OFFSITE POWER FOR MODES 3 OR 4, while continuing with this procedure at Step 3.

i Page 2 of 5 APPROVED -

- (')277E/0030E) .'

MAR 11 1988

(

B. O. S. R.

j

- = - .; =- -

=.. .- 3. . . :

3 , . . -. . . - ..

)

i e e

~

REV.: 3 OPERATION.DURING TORNADO. 2 BOA OR SUSTAINED WIND CONDITIONS-UNIT 2 ENV  :

j STEP . ACTION / EXPECTED RESPONSE RESPONSE NOT OBTAINED -

.f 3 MAG PRE 3ARATIONS FOR TORNADO 4 CO OITIOQ: '

a. Verify 2. Deep Well' Pumps a. Perform the following:

OPERABLE:

1) Initiate.LCOAR 7.5-la.

• Deep Well Pumps 0WWO1PA and 0WWo1PB - POWER AVAILABLE 2) Make up to SX tower basin (s) using the

• Surveillance OBOS 7.5.e.4-1,. following contingency-complete and within required l methods-as necessary:

. time interval for both pumps o -Use Deep Well Pumps.

• . Surveillance OBVS'7.5.1-1, o Use SX Makeup Pumps complete and withi'n required and monitor pump time interval for both pumps suction visually to verify adequate.

supply. Throttle pump discharge as necessary.

.I_F_ Deep Well and SX Makeup Pumps are NOT OPERABLE, THEN makeup to the SX tower basins by one of the-following methods as necessary:

o Use FP to SX System crosstie o Use FP from fire hydrants o Use WS to FP to SX System crossties o Use fire hoses from WS connections in the Circulating Water Pump House or Turbine Bldg Step continued on next page Page 3 of 5 APPROVED MAR 11 1988 B. o. s. R.

_ - - - - . - . . . . . . . . . . . ~ _ _ . . _ . -- . .. ._ .. -

REV. 3' OPERATION DURING TORNADO 2 BOA- {

OR SUSTAINED WIND CONDITIONS-UNIT 2 ENV-1 l

STEP ACTION / EXPECTED RESPONSE RESPONSE NOT OBTAINED -

Step 3 (continued)

IF FP and WS Systems are NOT OPERABLE, and CW flume contains water, THEN use portable pumps to transfer water from CW flume to SX Tower Basins.

IF CW System inventory is NOT AVAILABLE, THEN:

1) Use portable pumps to transfer water from the' Rock River to SX Makeup Pump Suction Sump.-

2) Operate SX Makeup Pump to deliver water to SX Tower Basins.

IF CW System is ruptured to the Turbine Bldg basement, THEN use portable pumps to transfer water from Turbine Bldg bacement to SX Tower Basins.

b. IF a tornado warning has'been Tssued, g t

THEN consider opening Turbine )

Bldg bay doors.  !

c. Go TO Step 5 4 CHECK WIND SPEED:

a. Wind speed - GREATER THAN a. Go To Step 6. .

THAN 60 MPH i

8 Page 4 of 5 APPROVED j (0277E/0030E) '

MAR 11 1988 B. O. S. R. ,

.._ ~ _ . . _ . . . _ . _ _ _ _ _ . _ _ .- _ _ . _ _._ . . . _ . _ _ . . . . . . .

__ j

..---.,;..a.....~  ;.... . . . - . ... . . - . - . . - . . ..

0 REV. 3 OPERATION DURING TORNADO 2 BOA OR SUSTAINED WIND CONDITIONS-UNIT 2 ENV-1 STEP ACTION / EXPECTED RESPONSE RESPONSE NOT OBTAINED -

5 PREPARE FOR ADVERSE CONDITIONS:

• Alert all plant personnel of existing weather conditions e Verify DG preparation for standby condition per BOP DG-1, DG ALIGNMENT TO STANDBY CONDITION

• Etop performance of any surveillance instructions that may make any ESF equipment inoperable e Stop any activities associated with fuel handling and shutdown all solid radioactive waste processing equipment e Tie down or remove all loose equipment and vehicles from l switchyard f 6 CONTMNUE TO 10NITOR WEATHER / WIND COND TIONS AVD EVALUATE PLANT STATUS

-END-1 Page 5 of 5 APPROVED (0277E/0030E)

MAR 11 1988 FINAL l B. O. S. R.  !

_