ML17138B278

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Forwards NRC Position on Degraded Grid Voltage to Ensure Conformance W/Full Load Testing of Transformers Supplying Power to Vital Buses as Required by Position 3,Reg Guide 1.68,Part 4
ML17138B278
Person / Time
Site: Susquehanna  Talen Energy icon.png
Issue date: 04/11/1980
From: Parr O
Office of Nuclear Reactor Regulation
To: Curtis N
PENNSYLVANIA POWER & LIGHT CO.
References
NUDOCS 8005060039
Download: ML17138B278 (10)


Text

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Docket Nos:

50-387 and 50-388 Mr. Norman 'll. Curtis Vice President - Engineering and Construction Pennsylvania Power and Light Company 2 North AqntIhPStreet Allentown, Pennsylvania 1810't Distribution:

NRC PDR Local PDR NSIC APR 11 1980 TIC TERA NRR Reading LWR 43 File D. F.

Ross D.

BE VAssallo S.

A. Varga F. J. Williams 0.

D. Parr R. Stark M. Rushbrook

Dear Mr. Curtis:

R. Mattson S.

H. Hanauer

SUBJECT:

INITIALTEST PROGRAM:

FULL LOAD TESTING OF POWER TO VITAL BUSES Sl9D506p~gcy J.

P. Knight R. L. Tedesco R.

C.

DeYoung V. Moore W. Kreger M. Ernst R. Denise OELD IE (3)

T. Murphy P. Collins J.

Minns ACRS (16)

F.

Rosa TRANSFORMERS SUPPLYING It has come to our attention that some applicants do not intend to conduct confirmatory tests of some distribution systems and transformers supplying power to vital buses as required by Position 3 of Regulatory Guide 1.68 and more specifically by Part 4 of the staff position on degraded grid voltage (see Enclosure to this letter).

Me will require that the tests be conducted in accordance with Part 4 of the Enclosure and this requirement should be factored into your initial test program.

If you have any questions regarding this requirement please contact us.

i Sincer ely, 0 lp~n;t S:-.ne4 kX

0. P. P @..:"-

Gian D. Parr, Chief

'ight llater Reactors Branch No, 3 Division of Project Management

Enclosure:

As stated cc:

See next page g~i7 I>+ i:FicaIi SURNAME-OATE P 04/ (.~ /80 04/ ( CI /80

, DPp; IIR.ig..

PSB.

RStark:pcm FRosa

.DP@+ln.P.3.

ODParr 04/

(I /80 NRC FORM 318 (9.761 NRCM 0240

'AU.S. GOVERNMENT PRINTING OFFICE: 1979 289 389

f H~

Mr. Norman W. Curtis APR l I 1gsp CC:

Mr. Earle M. Mead Project Engineering Manager Pennsylvania Power 8 Light Company 2 North Ninth Street Al 1 entown, Pennsyl vani a 18101 Jay, Silberg, Esq Shaw, Pittman, Potts 6

Trowbridge 1800 M Street, N.

W.

Washington, D.

C..

20036 Mr. William E. Barberich, Nuclear Licensing Group Supervisor Pennsylvania Pomr 8 Light Company 2 North Ninth Street.

Al 1 entown, Pennsyl vania 18101 Edward M. Nagel, Esquire General Counsel and Secretary Pennsylvania Power 8 Light Company 2 North Ninth Street Al 1 entown, Pennsyl vani a 18101 Bryan Snapp, Esq.

Pennsylvania Power 8 Light Company 901 Hamilton Street Al 1 entown, Pennsyl vania 18101 Robert M. Gallo, Resident Inspector P. 0.

Box 52 Shickshinny, Pennsylvania 18655 Susquehanna Environmental Advocates c/o Gerald Schultz, Esq.

500 South River Street Wilkes-Barre, PA 18702 John L. Anderson Oak Ridge National Laboratory Union Carbide Corporation Bldg. 3500, P. 0.

Box X Oak Ridge, Tennessee 37830 Mr. Robert J. Shovlin Project Manager Pennsyl vani a Power and" Light Co.

2 North Ninth Street Al 1 entown, Pennsyl vania

.18101 Matias F. Travieso-Diaz, Esq.

Shaw, Pittman, Potts Trowbridge 1800 M St rect, N.

W.

Washington, D. C.

20036 Dr. Judith H. Johnsrud

'o-Director En v ironmenta1 Coalition on Nuclear Power 433 Orlando Avenue State College, PA 16801 Mr. Thomas M. Gerusky, Director Bureau of Radiation, Protection Department of Environmental Resources Commonwealth of Pennsylvania P. 0.

Box 2063 Ha rrisburg, PA 17120

's.

Colleen Marsh Box 538A, RDII4 Yountain Top, PA 18707 Mrs. Irene Lemanowicz,'Chairperson The Citizens Against Nuclear Dangers P. 0.

Box 377 RDgl

Berwick, PA 18503

1

~

1

ENCLOSLlRE STAFF POSITION (Revised)

It has come to our attention that some applicants did not intend to conduct confirmatory tests o'f some distribution systems and transformers supplying power to vital buses as required by Position 3 of Regulatory Guide 1.68, and more specifically by Part 4 of the staff position on degraded grid voltage (applied to all plants in licensing review by the Power Systems Branch since 1976).

Part 4 of the degraded grid voltage position states as follows:

P "4.

The voltage levels at the safety-related buses should be optimized for the full load and minimum load conditions that are expected throughout the anticipated range of voltage variations of the offsite power source by appropriate adjustment of the voltage tap settings of 'the intervening transformers.

We require that the adequacy of the design in this regard be verified 1

by actual measurement and by correlation of measured values with analysis results, Provide a description of the method for making this verification; before initial reactor power o'peration, provide the documentation required to establish that this verification has

'een accomplished."

Your test description in FSAR Chapter 14-does not contain sufficient detail for us to determine if you intend to conduct such a test.

It is our position that confirmatory tests of all vital buses must be conducted including all sources of power supplies to 'the buses Modify your test description to indicate that this testing will be conducted in accordance with Regulatory Guide 1.68 and the above cited'osition.

t"l"

Docket Nos:

50-387 and 60-388 Distribution:

'%Et'RC

PDR, 4PR l g tg80 Local PDR NSIC TIC TERA NRR Reading LWR jI3 File Mr. Norman H. Curtis D. F. Ross-Vice President - Engineering and Construction Pennsylvania Power and Light Company.

2 North..:Hant'0",Street Rllentown, Pennsylvania 18101

Dear Hr. Curtis:

R. Matison S.

N. Hanauer

SUBJECT:

INITIALTEST PROGRAM:

FULL LOAD TESTING OF POWER TO VITAL BUSES J.

P. Knight R. L. Tedesco R.

C.

DeYoung V. Moore W. Kreger M. Ernst R. Denise OELD IE (3).

T. Murphy P. Collins J. Hinns ACRS (16)

F.

Rosa TRANSFORMERS SUPPLYING It has cene to our attention that some applicants do not intend to conduct confirmatory tests of some distribution systems and transformers supplying power to vital buses as required by Position 3 of Regulatory Guide 1.68 and more specifically by Part 4 of the staff position on degraded grid voltage (see Enclosure to this letter).

We will require that the tests be conducted in accordance with Part 4 of the Enclosure and this requiretiient should be factored into your initial test program.

If you have any questions regarding this requirement please contact us.

Sincerely, Orle','in.".l G~~ngg Qg O, L,Part; Olan D. Parr, Chief Light Water Rea@tors Branch No.

3 Division of Prospect Management

Enclosure:

As stated CC See next page OFFICE f>

SURNAME

,9 l1:Lll.8.3..

RStark:pcm P5B...,........

3PM:LHR.83.

FRosa ODParr OATEJ3'4/ )0

/80 04/

/80 04/

/80 NRC FORM 318 {9.76) NRCM 0240 NU.S. GOVERNMENT PRINTING OFFICE: 1979.289 369

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Mr. Norman W. Curtis APR 11 lg8O CC Mr., Earle M. Mead Project Engineering Manager Pennsyl.vania Power

& Light Company 2 North Ninth Street Al 1 entown, Pennsyl vani a 18101 Jay Si,lberg, Esq.

Shaw, Pittman, Potts Trowbridge 1800 H Street, N.

W.

,Washington, D. C.

20036 Hr. William E.

Ba rberi ch, Nuclear Licensing Group Supervisor Pennsylvania Power

& Light Company 2 North Ninth Street-Al 1 entown, Pennsyl vania 18101 Edward H. Nagel, Esquire General Counsel and Secretary Pennsylvania Power

& Light Company 2 North Ninth Street Al 1 entown, Pennsyl vani a 18101 Bryan Snapp, Esq.

Pennsylvania Poser

& Light Company 901 Hamilton Street Al 1 entown, Pennsyl vani a 18101 Robert H. Gallo Resident Inspector P. 0.

Box 52 Shickshinny, Pennsyl vani a 18655 Susquehanna Environmental Advocates c/o Gerald Schultz, Esq.

500 South River Street Wilkes-Barre, PA 18702 John L. Anderson Oak Ridge National Laboratory Union Carbide Corporation Bldg. 3500, P." 0.

Box X,

'ak

Ridge, Tennessee 37830'r.

Robert J. Shovlin Project Manager Pennsylvania Poser and Light Co.

2 North Ninth Street Al lentown, Pennsyl vania 18101 Hatias F. Travieso-Diaz, Esq.

Shaw,-Pittman, Potts Trowbridge 1800 M Street, N.

W.

Washington, D. C.

20036:

Or. Judi th H. Johnsrud Co-Director Environmental Coalition on Nuclear Power 433 Orlando Avenue State College, PA 16801 Hr. Thomas H. Gerusky, Director Bureau of Radiation Protection Department 'of Environmental Resources Commonwealth of Pennsylvania P. 0.

Box 2063 Harrisburg, PA 17120 Hs. Colleen Marsh Box 538A, RDb'4 Mountain Top, PA 18707 Hrs. Irene Lemanowicz, Chairperson The Citizens Against Nuclear Dangers P. 0.

Box 377 RObl

Berwick, PA 18503

~ gl ~

ENCLOSURE STAFF POSITION (Revised)

I It has come to our attention that some applicants did not intend to conduct confirmatory tests of some distribution systems and transformers supplying power to vital buses as required by Position 3 of Regulatory Guide 1.68, and more specifically by Part 4 of the staff position on degraded grid voltage (applied to all pl'ants in licensing review by the Power Systems

'Branch since 1976).

Part 4 of the degraded grid voltage position states as follows:

"4.

The voltage levels at the safety-related buses should be optimized for the full load and minimum load conditions that are expected throughout the anticipated range of voltage variations of the offsite power source by appropriate adjustment of the voltage tap settings of the intervening transformers.

We require that the adequacy of the design in this regard be verified by actual measurement and by correlation 'of measured values with analysis results..

Provide a description of the method for making this verification; before initial reactor power operation, provide the documentation required to establish that this verification has been accomplished."

Your test description in FSAR Chapter 14 does not contain sufficient detail for us to determine if you intend to conduct such a test.

It is our position that confirmatory tests of all vital buses must be conducted including all sources of power supplies to the buses Modify your test description to indicate that this'esting will be conducted in accordance with Regulatory Guide 1.68 and the above cited position.