ML20097C839
| ML20097C839 | |
| Person / Time | |
|---|---|
| Site: | Limerick  |
| Issue date: | 09/10/1984 |
| From: | Kemper J PECO ENERGY CO., (FORMERLY PHILADELPHIA ELECTRIC |
| To: | Schwencer A Office of Nuclear Reactor Regulation |
| References | |
| OL, NUDOCS 8409170282 | |
| Download: ML20097C839 (3) | |
Text
,,
PHILADELPHIA ELECTRIC COMPANY 2301 MARKET STREET P.O. BOX 8699 PHILADELPHIA. PA.19101 SEP 101984
'2isi s4i.4 so2 msn.. omo VIC E-PM ESID ENT (MGINEERING AND R ESE ARCH Mr. A. Schwencer, Chief Docket Nos.:
50-352 Licensing Branch No. 2 50-353
~ Division of Licensing
~
U. S. Nuclear Regulatory Cm mission Washington, D.C. 20555
Subject:
Limerick Generating Station, Units 1 and 2 Additional Information for Equipent Qualification Branch / Seismic Qualification Review Team (EQB/SQRr) Regarding SER Open Issue No. 6.
Reference:
(1) letter frun J. S. Kaper to A. Sch'encer dated August 1, 1984.
(2) Telecon between NBC (Arnold Iee) and PECO on Septerrter 5,1984.
File:
GOVT l-1 (NRC)
Dear Mr. Schwencer:
The reference (1) letter provided information regarding the threaded taper pins used in the HPCI and RCIC turbine assmblies.
Pursuant to the reference (2) _telecon we are providing the following information which (a) supports the HPCI and RCIC turbine assably hot alignment and taper pin installation schedule mentioned in reference (1) and (b) confirms the use of NBC-approved hydrodynamic loads in the mechanical and electrical equignent qualification.
(a) The IIPCI and RCIC turbine instruction manuals supplied by Terry Turbine, the turbine manufacturer, require that the taper pins be installed during hot alignment. Ilot alignment, according to these manuals, stust take place following a period of turbine operation using 300*F and 240*F steam for the IIPCI and RCIC turbines, respectively. Turbine operation, with steam of sufficient taperature and pressure, will not be available until RPV steam is at the 140 to 145 psi pressure level. 'Ihe power ascension schedule, which is based on RPV conditions attained, not calendar days, will require the hot aligrment of the turbines at the 140 to 145 psi level. This pressure level is below the Technical Specification limit of 150 psi which requires IIPCI and RCIC turbine operability.
(See Technical Specifications 3.5.1 and 3.7.3 respectively).
8409170282 840910 PDR ADOCK 05000352 E
PDR r
. :o ;'
.3 (b).DAR Table 1.3-2 and SER Section 6.2.17 document the hydrodynamic load acceptance criteria that were used in the equipnent qualification of safety related mechanical and electrical equipnent and.their supports.
The following are the significant sections of the FSAR and DAR that discuss the use of hydrodynamic loads for equipnent qualification:
FSAR Sections DAR Sections 3.10.1, 5.6, 6.7, 3.10.2, 6.8, 7.1.6, 3.9.2.2a, 7.1.7, 7.2.1.11, 3.9.2.2b 7.2.1.12 Should you require any additional information, please do not hesitate to contact us.
Sincerely, fA;Lf RDC/gra/09068402 cc: See Attached Service List
{
O.
cc: Judge Lawrence Bremer
'dudge Peter A. Morris
~ Judge Richard F. Cole Judge Christine N. Kohl
-Judge Gary J. Edles dudge Reginald L. Gotchy Troy B. Conner, Jr., Esq.
Ann P. Hodgdon, Esq.
-Mr.-Frank R. Romano
-Mr. Robert L. Anthony
-Ms. Maureen Mulligan-Charles W. Elliot, Esq.
Zori G.' Ferkin, Esq.
Mr. Thomas Gerusky Director, Penna. Energency Management Agency Angus R.- Love, Esq.
David Wersan, Esq.
Robert d. Sugarman, Esq.
i' Martha W. Bush, Esq.
Spence W.~ Perry, Esq.
day M. Gutlerrez, Esq.
Atomic Safety & Licensing Appeal Board Atomic Safety & Licensing Board Panel Docket & Service Section Mr. James Wiggins Mr. Timothy R. S. Carrobell 1.-