ML020910329

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Letter Clarifying Information for Proposed Change No. 251 from Vermont Yankee Nuclear Power Corporation
ML020910329
Person / Time
Site: Vermont Yankee File:NorthStar Vermont Yankee icon.png
Issue date: 03/28/2002
From: Balduzzi M
Vermont Yankee
To:
Document Control Desk, Office of Nuclear Reactor Regulation
References
BVY 02-20
Download: ML020910329 (15)


Text

VERMONT YANKEE NUCLEAR POWER CORPORATION 185 OLD FERRY ROAD, PO BOX 7002, BRATPLEBORO, VT 05302-7002 (802) 257-5271 March 28, 2002 BVY 02-20 U.S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, D.C. 20555

Reference:

a)

Letter, VYNPC to USNRC, "Removal of Primary Containment Isolation Valve Table, Revised SBGT Heater Rating and Miscellaneous Administrative Changes," BVY 0 1-85, dated November 20, 2001.

Subject:

Vermont Yankee Nuclear Power Station License No. DPR-28 (Docket No. 50-271)

Clarifying Information for Proposed Change No. 251 Following discussion with the Staff on March 13, 2002, this letter provides a copy of a calculation, VYC-2130 "SBGT Heater Power Requirement," referenced in our earlier submittal and explains how the incoming air temperature assumption was determined.

VYC-2130, establishes the required heater output of the Standby Gas Treatment system (SBGT) in kW necessary to ensure that the Relative Humidity (RH) of the air entering the SBGT charcoal filters is < 70%.

This calculation makes an assumption that the maximum air temperature entering the SBGT heater is equal to 1500 F with a relative humidity of 100%, which ensures that the calculated heater output is conservative.

The 150' F entering temperature is conservative based on the following:

Reactor Building temperature as calculated in VYC-2066, "Post LOCA Reactor Building Heatup Analysis Using the Gothic Computer Program," does not exceed 150'F.

Additionally, the actual temperature of the air entering the SBGT heater will be considerably lower. The SBGT inlet air is taken from Reactor Building elevations 252',

280', and 303' in the following proportions: 50% (El. 280'), 25% (El. 252'), and 25%

(El. 303'). Based on the temperatures determined in VYC-2066, the maximum SBGT heater inlet temperature is estimated to be approximately 1130 F.

Use of a conservatively high inlet air temperature will also ensure a conservative calculation of the maximum required heater power output. At a given % RH, air at a higher temperature will retain a greater amount of water than air at a lower temperature.

Therefore, for a given mass flow rate more heat input will be required to affect a given reduction in RH. For example, VYC-2130 calculates a required heat input of 7.1 kW to raise the temperature of the air from 150' F to 165.10 F (reduces RH to 70%). If the inlet air temperature is assumed to be 1130 F, a heat input of approximately 6.5 kW would be required to raise the temperature to approximately 125' F and reduce RH to 70%.

VERMONT YANKEE NUCLEAR POWER CORPORATION BVY 02-20 / page 2 The attachment to this letter is a copy of VYC-2130, Revision 0, entitled "SBGT Heater Power Requirement." This calculation is current as of the date of this submittal and it is not Vermont Yankee's intent to maintain the docket current with regard to future changes to this calculation.

Additionally, this clarifying information does not alter the no significant hazards consideration conclusion or the environmental impact conclusion contained in our original submittal.

If you have any further questions, please contact Mr. Jeff Meyer at (802) 258-4105.

Sincerely, VERMONT YANKEE NUCLEAR POWER CORPORATION Michael A. Balduzzi Senior Vice President and Chief Nuclear Officer STATE OF VERMONT

)

)ss WINDHAM COUNTY

)

Then personally appeared before me, Michael A. Balduzzi, who, being duly sworn, did state that he is Senior Vice President and Chief Nuclear Officer of Vermont Yankee Nuclear Power Corporation, that he is duly authorized to execute and file the foregoing document in the name and on behalf of Vermont Yankee Nuclear Power Corporation, and that the statements therein are true to the best of his knowledge and belief.

Mary J. DdwŽ, Notary Public My Commission Expires February 10, 2003 Attachment cc:

USNRC Region I Administrator USNRC Resident Inspector - VYNPS USNRC Project Manager - VYNPS Vermont Department of Public Service

Page 1 This document contains Vermont Yankee proprietary information. This information may not be transmitted in whole or in part to any other organization without permission of Vermont Yankee.

Page 1 of 9 Pages (body of calculation)

VYAPF 0017.01 AP 0017 Rev. 6 Page 1 of I VY CALCULATON TITLE PAGE VYC-2 130 0

N/A N/A VY Calculation Number Revision #

Vendor Calculation #

Revision #

Title:

SBGT Heater Power Requirement QA Status:

[D SC E] NNS E] OQA Operating Cycle Number N/A Calculation Supports A Design Change/Specification?

[] Yes Z No N/A VYDC/MMJTMISpec. No.

Calculation Supports An Independent Analysis?

EJ Yes N No Calculation Done as a Study Only?

El Yes 0 No c

v j Ný Reference Safety Evaluation Number: N/A 0

Superseded Calculation Number, Title. Revision:

N/A Review and Approval: (Print and Sign Name)

Preparer:.F Silvia G. Westerlind

5. ltih Date:

It. 'ILjG Interdiscipline Reviewer(s): Don Garbe /k

__d A Date:

tt! 210 Independent Reviewer(s):

Bill Timofeev Date: -/.

  • Approved:

Date: u Total No. Pages in Package Open Items Associated with Calculation? [] Yes

[ No

[]Closed (including all attachments) 13 pages Installation Verification

[

Calculation accurately reflects plant as-built configuration, OR

[J NIA, calculation does not affect plant configuration Printed Name Signature ate

Page 2 of 13 VY CALCULATION DATABASE INPUT FORM VYC-2130 0

VY CalculationlCCN #

Revision #

Vendor Name:

N/A N/A N/A Vendor Calculation #

Revision #

PO Number:

N/A Originating Department:

_Design Engineering, Fluid Systems Implementation Required:

D Yes 0 No Assel/Equipment ID Number(s):

EUH-2, EUH-4 Asset/System ID Number(s):

1-125 (Standby Gas Treatment)

Keywords:

SBGT (Standby Gas Treatment). Heater General References Oef....

e#

Reference Title fincludin, Rev. No. and Date, if applicable) (See App. A. Section 3..7 for Gtuidance)

Critical Ref (4)

Document SGT. Rev. 0, Design Basis Document for Standby Gas Treatment System /

1-Secondary Containment

2.

ASHRAE Fundamentals, 1989 SPUCSF-042: "Setpoint Program Uncertainty Analysis Functional Screening

3.

Justification", dated 7127/00

4.

Marks', "Standard Handbook for Mechanical Engineers", Eighth Edition, Chapter 15

5.

VYNPC Technical Specifications

6.

VYNPC Routine Work Order 99-009855-000, 10/0611999

7.

VYC-2066 Rev.0:"Post LOCA Reactor Building Heatup. Analysis Using GOTHIC Computer Program", dated 5/31/00 Design Input Documents - The following documents provide design input to this calculation. (Refer to Appendix A. section4)

Document #

Document Title (iuvluding Rev. No. and Date, if applicable)

Critical Ref(q)

VYC-2066 Rev. 0, "Post-LOCA Reactor Building Heat-Up Analysis Using the GOTHIC

7.

Computer Code" SPUCSF-042: "Setpoint Program Uncertainty Analysis Functional Screening

3.

Justification", dated 7/27/00 Design Output Documents - This calculation provides output to the following documents. (Refer to Appendix A, section 5)

Document #

Document Title Critical Ref(4)

Document SGT, Rev. 0, Design Basis Document for Standby Gas Treatment System /

1.

Secondary Containment VYAPF 0017.07 AP 0017 Rev. 6 Page 1 of 1

SBGT Heater Power Requirement VYC-2130 Rev. 0 Page 3 of 13 Table of Contents VY CALCULATION DATABASE INPUT FORM.................................................................

2 Table of Contents.............................................................................................................................

3 1.0 Introduction...........................................................................................................................

4 2.0 Analysis.................................................................................................................................

4 3.0 Inputs/Outputs.......................................................................................................................

5 4.0 Results...................................................................................................................................

6 5.0 Conclusion............................................................................................................................

8 6.0 References.............................................................................................................................

8 Attachment A - VY CALCULATION REVIEW FORM...........................................................

9 Attachment B - VY Routine Work Order 99-009855-000 10

SBGT Heater Power Requirement VYC-2130 Rev. 0 Page 4 of 13 1.0 Introduction This calculation determines the minimum required Standby Gas Treatment heater power output required to ensure that the relative humidity of the air entering the charcoal filter beds is *<70% [ 11 2.0 Analysis The following basic psychrometric equation set will be used to determine the heat input required to reduce the relative humidity of the incoming air from the worst-case reactor building conditions to 70%

RH at the new dry bulb temperature. The equation set is from ASHRAE Fundamentals [2]

1q2 =Mn(h 2 -h,)

h = 0.240t + W(1061 + 0.444t)

W= 0.6219( p P.

P*,.

  • = p Pw.

M" = 60 V1 Vt (1)

(Ref.2, pg. 6.16, Eq. 40)

(2)

(Ref. 2, pg. 6.13, Eq. 30)

(3)

(Ref. 2, pg. 6.12, Eq. 20)

(4)

(Ref. 2, pg. 6.13, Eq. 22)

(5)

(Ref.2)

= heat input required to raise air temperature from t, to t., BTU/hr

= mass flow of dry air, lbm/hr

= enthalpy of moist air, BTU/Ibm dry air

= dry-bulb temperature, 'F

= humidity ratio of moist air, ibm water / Ibm dry air

= partial pressure of water vapor in moist air, psia

= total pressure of moist air, psia

= relative humidity

= pressure of saturated water vapor, psia

= volumetric flow of moist air, cfin

= specific volume of dry air at point 1, ft 3/lbm dry air Rearranging Eq. 4 and substituting into Eq. 3 yields:

W =0.6219 0 (PW.

(P-0 P

(6) where 1q2 M/'a h

I w

Pw P

Pwj V.

SBGT Heater Power Requirement VYC-2130 Rev. 0 Page 5 of 13 Solving for p,, yields:

S pW 1

(7 Pwi 0.6 2 19 80

+ W/0.62198 Additionally, the heat input required to increase air from temperature, t,, to temperature, t2, in terms of temperature and a constant humidity ratio can be determined by substituting Eq. 2 into Eq. 1. As well, Eq. 5 can be substituted into Eq. 1. These operations yield:

0q2 = v

[0.240(12 -t 1)+0.444W(e2 -t,)]

(8)

V1 For the problem at hand, the final air temperature is an unknown. However, the beginning and final relative humidity, the total pressure, the flow rate and the inlet temperature are known. Therefore, Eq. 7 can be solved to determine the final pressure of saturated water vapor at the heater outlet temperature.

Looking up the saturated water vapor pressure will yield the final temperature.

With the outlet temperature now known, Eq. 8 can be solved to provide the total required heat input.

3.0 Inputs/Outputs/Assumptions The following input assumptions are made:

"* SBGT heater inlet conditions, 150'F at 100% RH (Ref.7).

"* SBGT heater outlet required relative humidity, 70%

(Ref. 1)

"* SBGT heater air flow, 1650 SCUM (1500 SCFM +10% margin)

(Ref.1)

"* Humidity ratio of moist air, W=.21273 Ibm water/Ibm dry air (Ref. 2, pg.6.5, Table 1)

"* It is assumed that a maximum of 3% heater current phase variance exists; this is a conservative assumption as measurements (Attach.B) indicate that the imbalance between the three phases is insignificant (ess than 1%).

"* Specific volume of dry air: v1=20.589 Ft3Ilbm at t1=150°F and vj=17.875 Ft3/lbm at t1=1330F (Ref.2, Table 1)

The heater inlet conditions are selected to produce the maximum required heat input, as defined in equations (1) and (8). As illustrated in equation (8), the heater inlet conditions that result in the maximum temperature differential across the heater,(t 2-tj), and the highest humidity ratio, W, should be selected.

Thus, for this calculation, the post-LOCA Reactor Building conditions determined in Ref.7 are used, i.e.

heater inlet temperature of 150°F, as these conditions were found to bound the system design conditions, as shown in section 4.0 below.

SBGT Heater Power Requirement VYC-2130 Rev. 0 Page 6 of 13 4.0 Results As described in Section 2, the heater outlet temperature is determined based upon the required outlet relative humidity. Solving for the saturated water vapor pressure at the heater outlet conditions:

pW 1

P"5 0.621980 ý+

.62198 14.7 -0.212730 1

0.62198-0.70 ý+0.-21273%0619

=5.352 psia From Table 2 of Ref. 2, the corresponding dry-bulb temperature is determined by linear interpolation:

5(.352-5.3422 }166-165)+165

= 165.t 0F The required heat input can now be determined:

,qz = V -60 [0.240(t2 _-,)+O.444W( 1,- 1 )]

V1 1650.60 [0.240(165.1-150)+ 0.444.0.212730(165.1-150)]

20.589

= 24283.5 BTU/hr = 7.1kw Alternately, a calculation of the required heat input at design conditions is also performed:

From Ref. 1 the heater inlet temperature is 11=133 IF, thus the corresponding humidity ratio from Ref.2 is W=0. 122855 and the specific volume of dry air is 17.875 Ft3/lbm..The saturated vapor pressure becomes:

14.7-0.122855 1

PWs 0.62198.0.70

+0.12285

.62198

= 3.464 psia

SBGT Heater Power Requirement VYC-2130 Rev. 0 Page 7 of 13 From Table 2 of Ref.2 the corresponding dry bulb temperature is determined as follows:

t=( 3.464-3.4548 -)(148-147)+147

[,3.44226-3.4548 147.103'F Thus the heat input at design conditions becomes:

V,.

1

v.60

-,)+

o.,44w(t2 -,,)1 1q2 =

'6 [0.240(t, -tin 044~t r)

V1

=1650" 60 [0.240(147.1-133)+ 0.444.0.122855(147.1-133)]

17.875

= 23001.9 BTU/hr = 6.742kw Therefore the heater power required to reduce the relative humidity of the incoming air from the worst case reactor building conditions to 70% would be 7.1 kW. Surveillance tests performed on the SBGT System require readings of the heater phase current and voltage and the determination of the heater power (OP-4 117). However, in order to ensure heater operability, namely a heater output of 7.1 kW, the heater power determined during the surveillance test must be higher than this value to account for the uncertainties associated with readings of voltage and current. The following uncertainties are applied to the calculated power of 7.1 kW:

1.

10 % Instrument error uncertainty - Ref. 3 While the OP-4114 requires current measurement for all three phases and the selection of the lowest value to calculate the heater power, only one phase voltage is being measured (Bus 9(8)) during the surveillance test according to procedure. It is presumed that the three phases could be slightly unbalanced. Therefore an uncertainty accounting for voltage variance between any two phases should be considered. It is assumed that a maximum of 3% difference between the lowest and the highest phase voltage could exist.

This is a conservative assumption as indicated by the phase voltage measurements on the attached Work Order (Ref.6/pg.9). Thus, it will be conservative to assume that the voltage being measured is the lowest of the three phases. Then an adjustment to increase the measured voltage by 3% should be made. This adjustment translates into a power uncertainty of 3.%, as shown:

2 3.0% phase variance uncertainty Given a three-phase voltage and current at the heater, the heater power output is determined as:

P=13 (Vx)

Ref. 4 V-=

heater phase voltage [volts]

I-

=heater phase current [ampers]

SBGT Heater Power Requirement VYC-2130 Rev. 0 Page 8 of 13 Then the corrected power for phase variance becomes Po,r,,,,,d = 3 (1.03Vxl)= 1.03 [3I(Vx!)

=- 1.03xP, thus For conservatism, the two uncertainties above, the instrument and the phase variance uncertainties, are added and the required power output for the SGT System heater will be determined as follows:

Power Uncertainty = 10% Instrument Error + 3.0% Phase Variance = 13.0%

Prquired

~=1.13xP4jt.t

=L l3x7.1kw =8.02kw 5.0 Conclusion This calculation determined that the required power for the SBGT System heater is 8.02 kW. This value represents the heat input needed to reduce the relative humidity of incoming air from the worst-case reactor building conditions to 70% including instrument and phase variance uncertainties. The Technical Specification (Ref. 5/pg.152) requires at least 9 kW heater input therefore providing sufficient margin to the analytically derived heater power. This calculation affects the information presented in the SBGT Design Basis Document (DBD). A DBD change needs to be initiated to include the required SBGT heat input for the most bounding reactor building conditions. No 50.59 Safety Evaluation is required.

6.0 References

1.

Document SOT, Rev. 0, Design Basis Document for Standby Gas Treatment System/ Secondary Containment

2.

ASHRAE Fundamentals, 1989

3.

SPUCSF-042: "Setpoint Program Uncertainty Analysis Functional Screening Justification", dated 7/27/00

4.

Marks'. "Standard Handbook for Mechanical Engineers", Eighth Edition, Chapter 15

5.

VYNPC Technical Specification

6.

VYNPC Routine Work Order 99-009855-000, 10/06/1999 (Attch.B)

7.

VYC-2066 Rev.0: "Post LOCA Reactor Building Heatup Analysis Using GOTHIC Computer Program", dated 5/31/2000

Page of 13_

VY CALCULATION REVIEW FORM Calculation Number:

VYC-2130 Revision Number-0 CCN Number:.*NA

Title:

S1BGT Heater Power Requirement Reviewer Assigned: W. Timofeev Required Date:

NA 0 Interdiscipline Review Review Comments*

1. P. 2&7- 
2. Pg. 4 - Reference equation (5) 3 Po-Catc. Review Form - should read vaee 8 of 8
4. Pg. 2 Design Input Document # 2 - where is it used?
5. Pg. 5 - Should reference Innut
6. Pg. 7, Sect. 5 - Tech, Spec. page 152 should be a ref. for 9KW
7. Pg. 4,5 & 6-Eqcutign should read V 60/V 1
8. Pg. 6 (Bus 9(8)) - Should "(8)" be attached to the end of the sentence "to calculate heat power."?
9. Pg. 7 - In Conclusion, state why Safety Eval. is not applicable
10. Pg. 5, - Ref. W=.212730 from ref. 2 page 6.5,Table I @150°F Reviewor'§ignature Method of Review:

//-10 Date SCalculation/Analysis Review O1 Alternative Calculation O Qualification Testing Calculation Preparer (Comments Resolved)

Reviewer Signature (Cornments KýKlved)

"*Comments shall be specific, not general. Do not list questions or suggestions unless suggesting wording to ensure the correct interpretation of issues. Questions should be asked of the preparer directly.

Resolution V

Date Date

1. Pe. 2&7 - should aeree on references & Ref. numbers

.i J

VERMONT YANKEE NUCLEAR POWER DATE/TIME PRINTED:,"

Routine Work Order 26 Oct 2000 15t12:38 99-009855-000 (C)

Page I of 5 ClosedO Originator : MACKIN, TIMOTHY Start Date: 10/06/1999 Action Code: PLANNED PM4S Requester DONALD GARBE Shutdown

NORMAL OPERATI Priority
2 START AND COM Planner
MACKIN, TIMOTHY Parts Reqd:

Project No : 5320-5320 Reference Area Code : 480AC Date Reqrd : 10/05/1999 G/L Overlay:.. 4415.5301 CWD

1427 Late Date WOR Number : 99-041517 WOR Entry Date: 28 SEP 1999 Frequency Drawing No : G-191301 SH.l Model No.
TYPE.W Asset Descr: MCC 9A COMPARTMENT 2D SERVICING STANDBY GAS TREAT HTR EUH-2

WORK ORDER CLASSIFICATION --------------------------------

PRIORITY: 2 Safety Class: SCE Fire Protection:

Environment Qual: N Class. of Work: 0/E Fire AP0042 I ) Chemical use Permit EX] M. Rule In-Scope I Radiation Work Permit AP0502 I I White Tags AP0140

[XJ M. Rule Risk Significant I ANI

[XI Housekeeping Zone AP-6024 ZN-V i-----

Work Desc:

Measure the in service amperage to EUH-2 with a Clamp-on ammeter.

Measurement should be conducted during the next monthly SBGT surveillance (OP 4117).

This relates to the issue identified by ER 99-1075 and ER 99-1074.

The heater output is in question when concidering rounding of indicator readings coupled with calibration accuracy of the installed ammeters on MCC-9A.

Please record the Bus 9 voltage at the time of these measurements so that heater power can be calculated.

Power = (amps x volts x 1.73)

The intent of this is a one time verification of heater operation.

There is no operability concern with the heaters at this time (reference the above mentioned ER's).

Prob. Desc:

Measure the in service amperage to EUH-2 with a clamp-on ammeter.

Measurement should be conducted during the next monthly SBGT surveillance (OP 4117).

This relates to the issue identified by ER 99-1075 and ER 99-1074.

The heater output is in question when concidering rounding of indicator readings coupled with calibration accuracy of the installed ammeters on MCC-9A.

Please record the Bus 9 voltage at the time of these measurements so that heater power can be calculated.

Power = (emps x volts x 1.73)

The intent of this is a one time verification of heater operation.

There is no operability concern with the heaters at this time (reference the above mentioned ER'S).

Asset MCC-9A-2D Revision No:

1 Asset/Cat

MCC-9A-2D 000
CUBICLE, MCC OPG PMT Review:

Location

CRB 248/EAST SWOR ROOM Drop Dead Date:

7...

DESCRIPTION --------

Step Crew Craft Schedule Date Persons Hours 1

El ELEC 2

2.00 MEASURE EUH-2 AMPERAGE WITH CALIBRATED CLAMP ON AMMETER NOTE:

Indicate any remarks or comments on the reverse side.

Completed by EMp-:

Signature:

Date; Reconciliation:

Failure; Accepted by Emp#

Signature:

Asset Downtime: _

Meter Reading:

Accepted by Date : ___/

V.HIAONTYANKE DESIN ENGINEERING CALCULATIMN N.A

_PAGFJQ._OF.13..

DATEITIME PRINTED:

26 Oct 2000 15:12:38 VERMONT YANKEE NUCLEAR POWER Routine Work Order 99-009855-000 (C)

Page 2 of 5 Closed Asset MCC-9A-2D Revision No: I Asset/Cat MCC-gA-2D 000

CUBICLE, MCC

- ------------------------------ DESCRIPTION Step Crew Craft Schedule Date Persons Ers

1. USING A CALIBRATED CLAMP-ON AMMETER MEASURE AND RECORD RUNNING AMPS ON EUH-2.

A PHASE 12.68 AMPS LOCAL METERS ON MCC-9A AMPS B PHASE

__12.87 AMPS AM 11 AMPS AMPS C PHASE.. 12.67 AMPS

2.

MEASURE AND RECORD BUS VOLTAGE.

A -

B

_487_

VOLTS A -

C 486 VOLTS C -

B

-489 VOLTS

3.

ENTER CALIBRATED METER DATA BELOW.

VOLTMETER VY#_6241-CAL DUE DATE 7/31100_

AMMETER VY#/

L-2586__

CAL DUE DATE 9/30/00-.

4.

FORWARD A COPY OF THIS PAGE TO DON GARBE AT MAIL CODE 1225 NO PMT NECESSARY 2

P1 PLAN PLANNING TIME TRACKING AM-i -

11 AM-3 12 1

0.75 Date Emp$

Mrs Enit

]

_____ I

____ _____ 1

____ _ I]

RECORD TIME DAILY -

Date Ep#

Hrs Ent

_____[

)

[ )

Date ExnpI Mrs Exi

____ _ [].

__ []

____ [1

__ [1 VECRONT YANO. DESIGN ENGINEElI.

CALCULATIONN.+/-C-01N.

n,'rIt

DATEITIME PRINTED:

26 Oct 2000 15:12:38 VERMONT YANKEE NUCLEAR POWER Routine Work Order 99-00985S-000 (C)

Page 3 of 5

"** Closed t**

Asset MCC-9A-2D Revision No: I Asset/Cat

MCC-9A-2D 000
CUBICLE, MCC

------------------------------- NOTES Subject PACKAGE & CLOSE OUT NOTES Pate Entered 11/02(1999 Entered By ANY KELLOM WO PACKAGE RETURNED TO PLANNER SS INIT:

KAG FOR CJW 10/13/99 AS POUND:

NORMAL OPS CORRECTIVE ACTIONS:

VOLTAGE & CURRENT READINGS ON 9KW HEATERS M/TE USED:

MULITMETER 6241 DUE 7131/00 CLAMP ON AMMETER L-2586 DUE 9/30/00 PROBABLE CAUSE:

NA PMTb NONE NO DISCREPANCIES, FOLLOW UP RECOMMENDATIONS, DISPOSITION OR JO FILE REQUIRED.

SUPERVISOR VERIFY PROPER AREA RESTORATIOL4DECON NO FORMS K.GAMACXE, AAG, 10/13/99, WLS, A.KELLOM 9E.R..OiTYANNE. DESa13 EK'.._EI.,

CALCULAllONNO ND.X-t'39dtV-O PAGI.Z-OFJ3_

DATE/TIME PRINTED:

26 Oct 2000 15:12:38 Asset HCC-9A-2D Asset/Cat

MCC-9A-2D VERMONT YANKEE NUCLEAR POWER Routine Work Order 99-009855-000 (C)

"*** Closed Revision No: 1 000

CUBICLE, MCC NOTES Date Entered 10/13/1999 Entered By ALAN GASPARDINO TO RJK FOR CLOSE-OUT.

AAG 10=13=1999.

TO El CREW.

AAG 10-13-1999.

RTND TO MAIN W.O. FILE, FOR RESCHEDULING.

AAG 10-05-1999.

TO El CREW.

AAG 10-04-1999.

WORK ORDER IS IN THE MAIN FILE.

TEM 10-4-1999 HAVE A CALL IN TO D.

GARBE ASKING WHAT IS REQUIRED OF THE INFORMATION TAKEN PER THIS WORK ORDER.

HE REQUESTS A COPY OF THE READINGS ALONG WITH VOLTMETER AND AMMETER VY NUMBERS AND CAL DATES BE FORWARDED TO HIM.

CHANGED THE ASSET NUMBER TO REFLECT THE MCC CUBICLE THAT FEEDS THE HEATER. THIS IS WHERE THE WORK WILL BE PERFORMED.

TEM 10-4-1999 VERMONTYANKEE DESIGN E*GINEERING CLcuLAn0lNN0.24-CzZ[

t &l"

~t.4d~. PGEAwJ~F3 Page 4 of 5 Subject WO NOTES