ML20129B152
| ML20129B152 | |
| Person / Time | |
|---|---|
| Site: | Trojan File:Portland General Electric icon.png |
| Issue date: | 06/30/1985 |
| From: | Butcher E Office of Nuclear Reactor Regulation |
| To: | Withers B PORTLAND GENERAL ELECTRIC CO. |
| References | |
| GL-85-09, GL-85-9, TAC-55383, NUDOCS 8507150458 | |
| Download: ML20129B152 (2) | |
Text
,..
o June 30, 1985-DISTRIBUTION:
- Docket No. 50-344 JRWTTEET Gray File NRC PDR Local PDR ORB #3 Rdg OELD Mr. Bart D.~ Withers EJordan Vice President Nuclear.
BGrimes Portland General Electric Company LMLazo 121 S.W. Salmon Street PMKreutzer Portland, Oregon 97204 ACRS +10
SUBJECT:
AUTOMATIC ACTUATION OF SHUNT TRIP ATTACHMENT
Dear Mr. Withers:
This refers to your letter of March 29, 1985 in which, among other things, you submitted a clarification to your original response to item 8 of the 13 plant-specific issues related to the Trojan reactor trip breaker shunt trip modification. Your original response is documented in our Safety Evaluation (SE)ofJuly 26, 1984. We have reviewed this clarification presented in your March 29, 1985 letter and find it acceptable.
Your letter also provided additional information concerning item 6 - Seismic Qualification of Shunt Trip Attachment - and item 13 - Proposed Technical Specification Changes. We have reviewed your response on the seismic qualifi-cation for the shunt trip attachment and find it acceptable.
With respect to your response on Technical Specifications, the staff has found that the existing Technical Specifications do not address independent testing of the under voltage and shunt trip attachments during power operation and in-dependent testing of the control room manual switch contacts during each refuel-ing outage. These tests are necessary to ensure reliable reactor trip breaker operation. Therefore, as requested by Generic Letter 85-09, issued May 23, 1985, you should submit Technical Specification changes which are responsive to the guidance noted in the enclosure to that Generic Letter.
It is requested that
-you provide that information within 60 days of receipt of this letter or pro-vide an alternative schedule within 30 days.
This letter should be viewed as a supplement to our SE of July 26, 1984.
Sincerely, j
6507150458 850630 PDR ADOCK 05000344 Edward J. Butcher, Acting Chief P
PDR.
Operating Reactors Branch #3 Division of Licensing cc: See next page
ICSB *
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r June 30, 1985 DISTRIBUTION:
Docket No. 50-344 DOCKU FILE Gray File NRC PDR Local PDR ORB #3 Rdg OELD Mr. Bart D. Withers EJordan Vice President Nuclear BGrimes Portland General Electric Company LMLazo 121 S.W. Salmon Street PMKreutzer Portland, Oregon 97204 ACRS +10
SUBJECT:
AUTOMATIC ACTUATION OF SHUNT TRIP ATTACHMENT
Dear Mr. Withers:
This refers to your letter of March 29, 1985 in which, among other things, you submitted a clarification to your original response to item 8 of the 13 plant-specific issues related to the Trojan reactor trip breaker shunt trip modification. Your original response is documented in our Safety Evaluation (SE) of July 26, 1984. We have reviewed this clarification presented in your March 29, 1985 letter and find it acceptable.
Your letter also provided additional information concerning item 6 - Seismic Qualification of Shunt Trip Attachment - and item 13 - Proposed Technical Specification Changes. We have reviewed your response on the seismic qualifi-cation for the shunt trip attachment and find it acceptable.
With respect to your response on Technical Specifications, the staff has found that the existing Technical Specifications do not address independent testing of the under voltage and shunt trip attachments during power operation and in-dependent testing of the control roon manual switch contacts during each refuel-ing outage. These tests are necessary to ensure reliable reactor trip breaker
. operation. Therefore, as requested by Generic Letter 85-09, issued May 23, 1985, you"have been asked to submit Technical Specification changes which are respon-sive to the guidance noted in the enclosure to that Generic Letter.
This letter should be viewed as a supplement to our SE of July 26, 1984.
Sincerely, Edward J. Butcher, Acting Chief Operating Reactors Branch #3 Division of Licensing cc: See next page ORB # :DL ORB #3:
ORB #3:DL PKr-zer LLazo:d EJButcher T//- 85 6//0/85 rhn 6/ /85