ML18043A920
| ML18043A920 | |
| Person / Time | |
|---|---|
| Site: | Palisades  |
| Issue date: | 07/30/1979 |
| From: | Hoffman D CONSUMERS ENERGY CO. (FORMERLY CONSUMERS POWER CO.) |
| To: | Ziemann D Office of Nuclear Reactor Regulation |
| References | |
| TASK-06-01, TASK-6-1, TASK-RR NUDOCS 7908070606 | |
| Download: ML18043A920 (3) | |
Text
consumers Power company General Offices: 212 West Michigan Avenue, Jackson, Michigan 49201 * (617) 788-0660 July 30' 1979 Director, Nuclear Reactor Regulation Att Mr Dennis L Ziemann, Chief Operating Reactors Branch No 2 US Nuclear Regulatory Commission Washington, DC 20555 DOCKET 50-255 - LICENSE DPR PALISADES PLANT - SEP TOPIC VI.REGULATORY DOC.KET HlE CO?Y ORGANIC MATERIALS AND POST ACCIDENT CHEMISTRY Ref (1) Letter from DLZiemann to DABixel dated June 6, 1979 The following information is provided as requested in Reference 1:
Item 1 Estimate the areas and thicknesses of the major proteGtive coating systems inside containment, including aluminum and zinc base paints, epoxy paints, acrylic lacquer, etc.
Response
Section 14.22 of the Palisades FSAR estimates the material that is assumed will result in hydrogen generation.
Additionally by letter dated August 14, 1975 to Mr R A Purple, DRL-USNRC, from Mr D A Bixel, CP Co, a list of surfaces used in calculating heat sink data for the containment building is provided.
Item 2 Indicate whether these coating systems and their methods of application were qualified according to the recommendations of Regulatory Guide 1.54.
Response
Regulatory Guide 1.54 was not used to qualify the coating systems since it
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was issued after Palisades was constructed.
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2 Item 3 If not, describe the QA provisions which were used to assure proper application.
Resnonse Work was done to an approved specification and consisted basically of good workman's practice.
The specifications required surface examinations, surrace preparations, storage areas, type of equipment, application, inspection and approved coating materials.
Item 4 For coatings not qualified with Regulatory Guide 1.54, describe the present condition of the coatings, including estimates of the amounts of flaking, peeling, cracking, bubbles, etc.
Response
Coatings are presently estimated to be in good condition; however, a comprehensive review of the coatings inside Palisades containment cannot be done with the plant at power.
Such an undertaking can be scheduled, if necessary, at a future outage.
Item 5 Estimate 'the quantity of other miscellaneous coating materials (such as on snubbers) not qualified according to Regulatory Guide *1.54.
Response
This estimation has been made in Table 2 of FSAR Section 14.22.
Item 6 Estimate the types and amounts of other organic materials such as electrical insulation inside* containment. -
Response-There are approximately 200 cu ft of electrical cable insulation inside containment.
Other organic materials are considered negligible.
3 Item 7 In addition to the information described above for organic coating systems, we will need the following information with respect to the related topic VI-5, "Combustible Gas Control":
Estimate the surface area and thickness of aluminum, zinc and galvanized steel inside containment.
Response
As in Item 1, the estimations of these are found in Section 14.22 of the FSAR.
David P Hoffman Assistant Nuclear Licensing Administrator CC JGKeppler, USNRC