ML20206A011
| ML20206A011 | |
| Person / Time | |
|---|---|
| Site: | Yankee Rowe |
| Issue date: | 11/01/1988 |
| From: | Papanic G YANKEE ATOMIC ELECTRIC CO. |
| To: | NRC OFFICE OF ADMINISTRATION & RESOURCES MANAGEMENT (ARM) |
| References | |
| FYR-88-145, GL-88-11, NUDOCS 8811140383 | |
| Download: ML20206A011 (2) | |
Text
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gYANKEE ATOMIC ELECTRIC COMPANY
"%G? %'?*l" r3 f p.SN 530 Mfn Stroot. Bol.'on, Massachusetts 01710 1398
,YArsfREE -
November 1, 1988 FYR 83-145 United States Nuclear Regulatory Coraission Document Control Desk Washington, DC 20555
References:
(a) Licenst No. DPR-3 (Docket tio. 50-29)
(b) Letter, USNRC to YAFC, dated July 12, 1988
Subject:
Response to NRC Ceneric Letter No. 88-11, NRC Position on Radiatico P.:tbrittlement of Reactor Vessel Materials ard its Impact on Plant Operatitans" Dear Sirt
'a Mr.w 1988, the NRC issued Revision 2 to Regulatory Cuide 1.99.
"Radiatinn W rittlerent of Reactor Vessel Materials." This will be used by the NRC in r. viewing submittals regarding Pressure-Terperature (P-T) limits and for analys - that require an estimate of the embrittlement of retetor vessel beltline material.
Subsequently, the NRC lesued Ceneric Letter No. 88-11 (Reference (b)) requiring Itcinsees to use the r.ethods described in Revision 2 6.o Regulatory Guide 1.99 to predict the effect of neutron radiation l
on reactor vessel materials as required by Paragraph V.A of 10CFR, Part 50, l
Appendix C The purpose of this letter is to provide Yankee's response to Generic Letter No. 88-11.
We have evaluated the effect of neutron radiation on the Yanh
_uelear Power Station reactor vessel raterials using the rethods described in l
Regulatory Culde 1.99 Revision 2.
It has been detenmined that substantial benefits will be e,ained, corpared to our existing Technical Specifications, in its use f or adjusting the Appendix C curves.
Revised normal operating heatup and cooldown limits will provide additional operational flexibility through ivletentation of Regulatory Culde 1.99 Revision 2.
It is our intent to submit a Technical Specification change within two plant outages in accordance with the bulletin, which will provide the buses for codifications to the Appendix C operating lir.its.
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Unitad States Nuclear Regulatory Cor. sission Nov 'b%r 1. 1988 l
Attention: Document Control Dock Page 2 I
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i Should you have any questions, or require further information concerning j
this matter, please contact us.
Very truly yours.
[
YANKLE AT0lilC ELECTRIC COMPANY
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4A C.PapdIlc.Jr.
San'or Project Engineer Licensing 7
1 CP/15.1165 oc: USNRC Regior. I USNRC Realdent Inspector. YMPS I
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