ML20137W853

Forwards Safety Evaluation Granting Relief from Radiographic & Visual Insp of Reactor Coolant Pump Casings Required by ASME Boiler Pressure Vessel Code,Section Xi.Proposed Alternate Form of Exam Acceptable

ML20137W853
Person / Time
Site:	Calvert Cliffs
Issue date:	09/18/1985
From:	Harold Denton Office of Nuclear Reactor Regulation
To:	Lundvalle A BALTIMORE GAS & ELECTRIC CO.
Shared Package
ML20137W859	List: ML20137W853 ML20137W881
References
NUDOCS 8510040408
Download: ML20137W853 (4)

Text

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l Docket Nos. 50-317 and 50-318 September 18, 1985 (g

0 Mr. A. E. Lundvall, Jr.

Vice President - Supply j Baltimore Gas & Electric Company P. O. Box 1475 i Baltimore, Maryland 21203

Dear Mr. Lundvall:

The NRC has provided relief from a requirement of the ASME Boiler and Pressure Yessel Code,Section XI, which BG&E has determined to be impractical in accordance with your application dated February 4,1985 as supplemented by your letters dated May 31, 1985 and June 24, 1985.

The code relief, granted in accordance with 10 CFR Part 50, Section 50.55a(g)(6)(1), relates to the requirement for 100% volumetric examination 1 of reactor coolant pump casing welds. You have proposed an acceptable, i

alternate form of examination consisting of: (1) pump interior examination l

to the extent practical in the event that a pump is disassembled, (2) hydrostatic testing, and (3) surface examination of one reactor coolant pump's casing welds, per unit, and a 100% visual examination of this pump's exterior.

A copy of our Safety Evaluation is enclosed.

- Sincerely, h

j Harold R. Denton, Director 1 Office of Nuclear Reactor Regulation 2

Enclosure:

Safety Evaluation

., cc w/ enclosure:

l See next page i

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1

! Docket Nos. 50-317 and 50-318 i

i Mr. A. E. Lundvall, Jr.

Vice President - Supply

Baltimore Gas & Electric Company 7

P. O. Box 1475 Baltimore, Maryland 21203  ;

i

Dear Mr. Lundvall:

The NRC has provided relief from a requirement of the ASME Boiler and Pressure l

Vessel Code,Section XI, which BG&E has detennined to be impractical in

accordance with your application dated February 4,1985 as supplemented by your letters dated May 31, 1985 and June 24, 1985.

4 The code relief, granted in accordance with 10 CFR Part 50, Section 50.55a(g)(6)(i), relates to the requirement for 100% volumetric examination of reactor coolant pump casing welds. You have proposed an acceptable, alternate form of examination consisting of: (1) pump interior examination l to the extent practical in the event that a pump is disassembled, (2) hydrostatic testing, and (3) surface examination of one reactor coolant pump's casing welds, per unit, and a 100% visual examination of this pump's l

exterior.

A copy of our Safety Evaluation is enclosed.

1 Sincerely, t

l i Edward J. Butcher, Acting Chief l Operating Reactors Branch No. 3 j Division of Licensing

Enclosure:

Safety Evaluation f

cc w/ enclosure:

See next page i

Distribution:

Docket File EButcher NRC & L PDRs DJaffe

, Branch Files PKreutzer HThompson EJordan i

, OELD BGrimes  !

ACRS 10 4

i l *See previous white for concurrences l

l *0RB#3:DL *0RB#3:DL *0 ELD A :DL ORB #3:DL i PKreutzer DJaffe CWoodhead GdL inas EButcher

] 8/9/85 8/9/85 8/12/85 g g/85 / /85

. Docket Nos. 50-317  ;

and 50-318 i

! Mr. A. E. Lundvall, Jr.

4 Vice President - Supply I Baltimore Gas & Electric Coinpany i P. O. Box 1475 Baltimore, Maryland 21203

Dear Mr. Lundvall:

t The NRC has provided relief from a requirement of the ASME Boiler and Pressure 1

Vessel Code,Section XI, which BG&E has determined to be impractical in

accordance with your application dated February 4,1985 as supplemented by

) your letters dated May 31, 1985 and June 24, 1985.

j The code relief, granted in accordance with 10 CFR Part 50. Section i 50.55a(g)(6)(1), relates to the requirement for 100% volumetric examination .

l of reactor coolant pump casing welds. You have proposed an acceptable, i alternate form of examination consisting of: (1) pump interior examination to the extent practical in the event that a pump is disassembled, (2) hydrostatic testing, and (3) surface examination of one reactor coolant

, pump's casing welds, per unit, and a 100% visual examination of this pump's j exterior.

A copy of our Safety Evaluation is enclosed.

Sincerely, i

Edward J. Butcher, Acting Chief  ;

Operating Reactors Branch No. 3

> Division of Licensing

Enclosure:

l Safety Evaluation  !

cc w/ enclosure:

i See next page i

i Distribution:  !

' Docket File EButcher j NRC & L PDRs DJaffe i Branch Files PKreutzer L j

HThompson DELD EJordan BGrimes f '

I i

ORB #3;DL OR g)

QELQ,.pr)AD:0R:DL ORB #3:DL l

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l

1 Mr. A. E. Lundvall, Jr.

Baltimore Gas & Electric Company Calvert Cliffs Nuclear Power Plant cc:

Mr. William T. Bowen, President Regional Administrator, Region I Calvert County Board of U.S. Nuclear Regulatory Comission Commissioners Office of Executive Director Prince Frederick, Maryland 20768 for Operations 631 Park Avenue D. A. Brune, Esq. King of Prussia, Pennysivania 19406 General Counsel Baltimore Gas and Electric Company Mr. Charles B. Brinkman P. O. Box 1475 Manager - Washington Nuclear Operations Baltimore, Maryland 21203 Combustion Engineering, Inc.

7910 Woodmont Avenue George F. Trowbridge, Esq. Bethesda, Maryland 20814 Shaw, Pittman, Potts and Trowbridge ICC0 M Street, NW Mr. J. A. Tiernan, Manager Washington, DC 20036 Nuclear Power Department Calvert Cliffs Nuclear Power Plant Mr. R. C. L. Olson, Principal Engineer Maryland Routes 2 and 4 Nuclear Licensing Analysis Unit Lusby, Maryland 20657 Baltimore Gas and Electric Company Room 720 - G&E Building Mr. R. E. Denton, General Supervisor P. O. Box 1475 Training and Technical Services Baltimore, Maryland 21203 Calvert Cliffs Nuclear Power Plant Maryland Routes 2 and 4 Lusby, Maryland 20657 Resident Inspector c/o U.S. Nuclear Regulatory Commission Combustion Engineering, Inc.

P. O. Box 437 ATTN: Mr. R. R. Mills, Manager Lusby, liaryland 20657 Engineering Services P. O. Box 500 Mr. Leon B. Russell Windsor, Connecticut 06095 Plant Superintendent Calvert Cliffs Nuclear Power Plant Department of Natural Resources l'aryland Routes 2 and 4 Energy Administration, Power Plant Lusby, Maryland 20657 Siting Program ATTN: Mr. T. Magette Bechtel Power Corporation Tawes State Office Building ATTN: Mr. D. E. Stewart Annapolis, Maryland 21204 Calvert Cliffs Project Engineer 15740 Shady Grove Road Gaithersburg, Maryland 20760 Mr. R. M. Douglass, Manager Quality Assurance Department Baltimore Gas and Electric Company Fort Smallwood Road Complex P. O. Box 1475 Baltimore, Maryland 21203