ML031210181
| ML031210181 | |
| Person / Time | |
|---|---|
| Issue date: | 01/29/1981 |
| From: | Eisenhut D Office of Nuclear Reactor Regulation |
| To: | |
| References | |
| %dam200609 GL-81-008, NUDOCS 8102260268 | |
| Download: ML031210181 (5) | |
Text
- -
06 R
b so -UNITED STATES
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- NUCLEAR REGULATORY COMMISSION WASHINGTON, D. C. 20555-January 29, 1981 ALL:HOLDERS'OF CONSTRUCTION PERMITS AND OPERATING LICENSES FOR BOILING WATER REACTORS
SUBJECT:
ODYN CODE.(GENERIC LETTER 81-08)
By letter dated November 4, 1980, we informed you of our requirements for use
- of-the ODYN code to calculate pressurization transients,.and stated that a safety evaluation describing the basis for our acceptance of this code would be mailed to you in the near future.
Enloe yuwill 'find a afety evaluation and a supplemental safety evalu-ation which Jointly evaluate the ODYN code and provide information required for application of ODYN.
As you were informed in our letter of November 4, 1980, transient Analyses performed by. General Electr ic supporting reload submittals received after February 1, 1981, Must contain appropriate ODYN analyses in place of those, previously performed with REDY for the limiting transients. After January 1982, all operating BWRs with General Electric analyses must have the limiting transients recalculated with the ODYN code, even if no reload submittal has been received. Also, this requirement for the calculation of the limiting transients with the ODYN code is applicable to applicants for an operating license and is a prerequisite to obtaining an operating license.
Sincerely9 Division ofLicensing En closures:
ljSafety Evaluation 2Supplemental Safety Evaluation cc: w/o enclosure Service List
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ALL HOLDERS OF CONSTRUCTION PERMITS AND OPERATING LICENSES FOR BOILING WATER REACTORS
SUBJECT:
ODYN CODE (GENERIC LETTER 81-08)
By letter dated November 4, 1980, we informed you of our requirements for use of the ODYN code to calculate pressurization transients, and stated that a safety evaluation describing the basis for our acceptance of this code would be mailed to you in the near future.
Enclosed you will find a safety evaluation and a supplemental safety evalu-ation which Jointly evaluate the ODYN code and provide information required for application of ODYN.
As you were informed in our letter of November 4, 1980, transient analyses performed by General Electric supporting reload submittals received after February 1, 1981, must contain appropriate ODYN analyses in place of those previously performed with REDY for the limiting transients.
After January 1982, all operating BWRs with General Electric analyses must have the limiting transients recalculated with the ODYN code, even if no reload submittal has been received.
Also, this requirement for the calculation of the limiting transients with the ODYN code is applicable to applicants for an operating license and is a prerequisite to obtaining an operating license.
Sincerely,
Enclosures:
l) Safety Evaluation 2 Supplemental Safety Evaluation rrell G-Eisenhut, Director vision of LicenAing DUSTRUBUTTON DL Assistant Directors ORB BCs
.-ORB PMs ORB Licensing Assistant OELD (5)
-OI&E 7)
NSIC TERA Central File NRC PDR Local PDR S
cc: w/o enclosure Service List 7-YJiG2tS2X&E Gray File
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-W. Hodges
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L OFFICIAL RECORD COPY USOPO: 198O--329.82
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ALL HOLDERS OF CONSTRUCTION PERMITS AND OPERATING LICENSES R
BOILING WATER REACTORS
SUBJECT:
ODYN CODE (GENERIC LETTER 81-08)
By letter dated Novenber 4, 1980, we informed you o our requirements for use of the ODYN code to calculate pressurization tran ents, and stated that a safety evaluation describing the basis for our a eptance of this code would be mailed to you in the near future.
Enclosed you will find a safety evaluation d a supplemental safety evalu-ation which Jointly evaluate the ODYT code nd provide information required for application of ODYN.
As you were informed in our letter of Iiventer 4, 1980, transient analyses performed by General Electric supporthg reload submittals received after February 1, 1981, must contain approalate ODYN analyses in place of those previously performed with REDY for me limiting transients.
Also, after January 1982, all operating BWRs f
th General Electric analyses must have the limiting transients recalcul d with the ODYN code, even if no reload submittal has been received.
Sincerely, Darrell G. Eisenhut, Director Division of Licensing
Enclosures:
Distribution:
1i Safety Evaluatlo DL Assistant Directors 2 Supplemental Sa ety Evaluation ORB BCs ORB PMs cc: Service List /o enclosure ORB Licensing Assistants OELD (5)
/OI&E (7)
/NSIC TERA Central File NRC PDR Local PDR Gray File T. Speis A
W.
Hodges 4
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- Docket No. 50-263 Monticello Docket No. 50-133 Humboldt Bay Docket No. 50-277 Peach Bottom Unit 2 Docket No. 50-278 Peach Bottom Unit 3 Docket No. 50-333 FitzPatrick Docket Browns No. 50-259 Ferry Unit 1 Docket No. 50-265 Quad-Cities Unit 2 Docket Browns No. 50-260 Ferry Unit 2 Docket No. 50-155 Big Rock Point Docket No. 50-409 Lacrosse :- a, Docket No. 50-296 Browns Ferry Unit 3 Docket No. 50-271 Vermont Yankee Docket No. 50-321 Edwin I. Hatch Unit 1
,Docket No. 50-366 Edwin I. Hatch Unit 2 Docket No. 50-331 Duane Arnold Docket No. 50-219 Oyster Creek Docket No. 50-220 Nine Mile Point Unit 1 Docket Cooper No. 50-298 Station vkW'U
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