ML19209A844
| ML19209A844 | |
| Person / Time | |
|---|---|
| Site: | Zimmer |
| Issue date: | 09/19/1979 |
| From: | Office of Nuclear Reactor Regulation |
| To: | |
| Shared Package | |
| ML19209A838 | List: |
| References | |
| NUDOCS 7910050471 | |
| Download: ML19209A844 (3) | |
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ENCLOSURE REQUEST FOR ADDITIONAL INFORMATION WM. H. ZIMMER ROUND-TWO QUESTIONS Introduction This enclosure consists of the twenty-sixth in a series of positions (and requests for additional information). We will need your response in order to complete our safety evaluation of your Zimmer OL application.
The request is in the area of:
121.0 Materials Engineering 221.0 Electrical Instrumentation and Control Systems It will be helpful to us if your responses are in a " Position and Response" format using the same number designation as the position. The first number designated the review area and the second (in parentheses) designated the associated section of the FSAR.
Of course, your responses should include revision to the FSAR whereever appropriate.
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121.0 MATERIALS ENGINEERING BRANCH - MATERIALS INTEGRITY SECTION 121.21 The Wm. H. Zimmer Nuclear Power Station, Unit No. I preservice inspection program plan does not address the containment penetra-tions which include ASME Code Class 1 and Class 2 welds within the scope of Regulatory Position Cl of Regulatory Guide 1.26.
Examples of these ;enetrations are the M1, 2, 3, 4, 5, 6 hot pipe penetra-tions (T5AR Table 3.8-1) with Type I flued head (FSAR Fig. 3.8-19).
which, in addition, include an inaccessible weld. Other examples are the welds in the hydrogen gas control penetrations which join valves to the penetrations.
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s 221.0 ELECTRICAL INSTRUMENTATION AND CONTROL SYSTEMS 221.388 Your response to Question 221.267, as documented in your submittals (3.11)
"GE Isolator Device Qualification Summary" and " Figure 9221.267-2, RMCS to RBM Isalation Device Testing Connections", Revision 58, dated June 1979, is incomplete and, therefore, unacceptable.
The qualification test described in the Qualification Summary, and illustrated in Figure Q221.267-2, verified only that the isolation device can withstand the imposed voltage stresses without loss of physical integrity. The test, as documented, did not determine the ability of the device to perform its isolation function, i.e. no adverse effect on the input signal when a voltage is applied to the output of the isolation device.
You are requested to submit documentation of testing that demonstrates that the device acceptably isolates the input from any design basis voltages applied at the output terminals.
Your acceptance criteria, and their bases, for this test should also be submitted.
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