ML20129C531: Difference between revisions

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#REDIRECT [[RBG-21-676, Submits Info Requested by Equipment Qualification Branch. Equipment W/Natural Frequencies Between 60Hz to 100Hz Qualified & Acceptable for Applicable Hydrodynamic Loads. Safety-related Pump & Valve Preoperational Tests Completed]]
| number = ML20129C531
| issue date = 07/26/1985
| title = Submits Info Requested by Equipment Qualification Branch. Equipment W/Natural Frequencies Between 60Hz to 100Hz Qualified & Acceptable for Applicable Hydrodynamic Loads. Safety-related Pump & Valve Preoperational Tests Completed
| author name = Booker J
| author affiliation = GULF STATES UTILITIES CO.
| addressee name = Denton H
| addressee affiliation = NRC OFFICE OF NUCLEAR REACTOR REGULATION (NRR)
| docket = 05000458
| license number =
| contact person =
| document report number = RBG-21-676, NUDOCS 8507290472
| document type = CORRESPONDENCE-LETTERS, INCOMING CORRESPONDENCE, UTILITY TO NRC
| page count = 2
}}
 
=Text=
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* I ,
GULF STATES                  UTILITIES            COMI'ANY POST OFFICE D O x 2 9 51
* BEAUMONT            TEXAS 77704 ARF A C0DE 4 09 8 38    6631 July 26, 1985 RBG - 21,'676 File Nos. G9.5, G9.20.8 Mr. Harold R. Denton, Director Office of Nuclear Reactor Regulation U.S. Nuclear Regulatory Commission Washington, D.C. 20555
 
==Dear Mr. Denton:==
 
River Bend Station - Unit 1 Docket 50-458 The following information is being provided as requested by the Equipment. Qualification Branch:
: 1)  Attachment 1, item 1 of GSU's July 19, 1985 letter is clarified with the following:
Equipment with natural frequencies between 60Hz to 100Hz that needs to be qualified for hydrodynamic loads is qualified and acceptable for the applicable hydro-dynamic loads.
: 2)    Seismic Qualification for the RCIC turbine assembly is contained in the GE repart NEDC-30791 dated October, 1984.
The report identifies no required modifications to the governor as a result of seismic testing. The RCIC turbine governor was part of the original RBS seismic qualification package from GE.
: 3)    Qualification requirements for seismic Category I equip-ment affected by seismic and othet dynamic loads, as defined in FSAR App. 6A, have been revised to include these loads (i.e. hydrodynamic, annulus pressurization, etc.).          The required response spectra (RRS) and the maximum g-values for line mounted equipment have been revised, as required, to include the effects of new loads. In addition, the piping analysis, including the as-built piping analysis, included the new loads. The as-built piping analysis for safety-related equipment has been completed.
8507290472 G50726                                                      / 8N PDR A
ADOCK 03000458                                                        64g PDR Ifo
 
F
    ~~
: 4) Item 5 of Section B to GSU's March 29, 1985 letter (RBG-20,594) is updated with the following:
Safety-related pump and valve preoperational tests have been completed. The RBS standby service water pumps (deep draft) have had their 100 hr. test completed (PT-256). Safety-related pumps and valves have been qualified with the exception of Specification 247.497, "Borg Warner Globe Valves."
Sincerely,
                                                                  . i J. E. Booker Manager-Engineering Nuclear Fuels & Licensing River Bend Nuclear Group l
      . - - -  -- __ ,}}

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