JPN-92-030, Forwards Application for Amend Tolicense DPR-59,revising TSs to Add Response Time Testing Requirements for RPS & MSIV Actuation Instrumentation Including Analog Transmitter Trip Sys,In Ref to Insp Rept 50-333/91-22
| ML20101H449 | |
| Person / Time | |
|---|---|
| Site: | FitzPatrick  |
| Issue date: | 06/22/1992 |
| From: | Ralph Beedle POWER AUTHORITY OF THE STATE OF NEW YORK (NEW YORK |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| Shared Package | |
| ML20101H453 | List: |
| References | |
| JPN-92-030, JPN-92-30, JPTS-92-010, JPTS-92-10, NUDOCS 9206290354 | |
| Download: ML20101H449 (2) | |
Text
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June 22,1992 JPN 92-030 U.S. Nuclear Pegulatory Commission ATTN: Document Control Desk Mail Station P1 137 Washington, D.C. 20555
SUBJECT:
James A. FitzPatrick Nuclear Power Plant Docket No. 50-333 Proposed Changa to the Technical Specif; cations instrument Channel Response Timo Testing (JPTS 92 010)
References:
1.
NRC letter, C. W. Hehl to R. J. Converso, dated February 20, 1992, "NRC Region i Inspection No. 50 333/9122."
2.
NRC letter, C. W. Hohl to R. E. Becdle, dated April 17,1992,
" Enforcement Conference on March 18,1992 to Discuss Apparent Violations Documented in Inspection Report No.
50-333/91 22."
Doar Sir:
This application for an amendment to the James A. FitzPatrick Technical Specifications proposes to add responso time testing requirements for the reactor t
protection system and main steam isolation valvo actuation instrumentation including the analog transmitter trip system (ATTS). These testing requirements are applied to instrument channels for which responso time is a significant input to the FSAR transient and accident analyses, The ATTS system was installed in 1985 to replace the original mechanical sensor switches and relays in the reactor protection, containment isolation, and omorgency coro cooling systems. The NRC approved installation of this system and its associated surveillanco and calibration requirements in Amendment 89 to the Technical Specifications. At that time, the Authority did not proposo revising the exi ting t
Technical Specification response time testing requirements, instead, the Authority modified the mechanical sensor switch response time testing procedure to accommodate the new instrumentation.
Response time testing for instrument loops using mechanical sonsors began at the output contacts of the sensors. With ATTS, the cornparable contacts are located at the output of the ATTS relays rather than at the output of the sensors. Since 1985, responso time testing hed been conducted beginning from the output of the ATTS relays. Accordingly, the measured response time did not include the responso time of the sensor nor the time required for the sensor output signal to be processed by other ATTS components. As cited by the NRC in References 1 and 2, this testing method did not moet the assumptions of General Electric Uconsing Topical Report, NEDO-21617 A, 8)!
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" Analog Transmittor/ Trip Unit System for Enginocred Safeguard Sonsor Trip Inputs,"
i which formed tho bases for Amendment 89.
The proposed Technical Specification amendment providos response timo testing requirements appropriate for instrument channels, including ATTS system components, In accordance with the Standard Technical Specifications. The individual responso timo acceptanco critoria woro developed by tho General Electric Company to ensure that total instrument loop responso times, including the ATTS instrumentation delay, remain within the times assumod in the FitzPatrick transient and accident analysos.
r Tho signed original of the Application for Amendment to Operating Uconso is onclosed for filing. Attachment I to this application contains the proposed changos to the Technical Specifications. Attachments ll and 111 contain the associated Safety Evaluation and a report entitled "ATTS Transmittor Rosponso Timo Testing Methodology
- which describos and ovaluates the proposed responso timo testing methodology.
A copy of this application and the associated attachmonts are being provided to the designated Now York Stato officiat in accordance with 10 CFR 50.91.
If you have any questions, please contact Mr. J. A. Gray, Jr.
Very truly yours,
{-
t-Ralph E. Boodlo Exocutive Vice President Nuclear Generation att: as stated cc:
Rogional Administrator U.S. Nuclear Regulatory Commission 475 Allendale Road King of Prussia, A 19406 P
Office of the Resident inspector U.S. Nuclear Regulatory Commission P.O. Box 136 Lycoming, NY 13093 Mr. R. Plasso Project Directorato 11 Division of Reactor Projects t/11 i
U.S. Nuclear Regulatory Commission Mail Stop 14 B2 Washington, DC 20555 Ms. Donna Ross New York State Energy Offico 2 Empire Stato Plaza 16'h Floor Albany, NY 12223
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