IR 05000329/1979029
| ML19296C178 | |
| Person / Time | |
|---|---|
| Site: | Midland |
| Issue date: | 01/14/1980 |
| From: | Corcoran M, Hayes D, Naidu K NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| To: | |
| Shared Package | |
| ML19296C173 | List: |
| References | |
| 50-329-79-29, 50-330-79-29, NUDOCS 8002250334 | |
| Download: ML19296C178 (5) | |
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I U.S. NUCLEAR REGULATORY COMMISSION OFFICE OF INSPECTION AND ENFORCEMENT
REGION III
Report No:
50-329/79-29; 50-330/79-29 Docket No:
50-329; 50-330 License No:
CPPR-81; CPPR-82 Licensee:
Consumers Power Company 1945 West Parnall Road Jackson, MI 49201 Facility Name: Midland Nuclear Power Plant, Units 1 and 2 Inspection At: Midland Site, Midlar.d, MI Inspection Conducted: December 18-20, 1979 Inspector:
K. R. Naidu
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Other Accompanying Personnel: p.Corcoran.
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Approved By D. W. Hayes, Chief
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Engineering Support Section 1 Inspection Summary Inspection on December 18-20, 1979 (Report No. 50-329/79-29 and No. 50-330/
79-29)
Areas Inspected:
Installatien of safety related electrical and instrument components, action taken on IE Bulletins and Circulars. The inspection involved a total of 16 inspection-hours on site by one hTC inspector.
Results: No items of nencompliance were identified.
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DETAILS Persons contacted Consumers Power Company J. G. Balzer, P.M.0. Construction J. L. Corley, QA Section Head IE & TV D. E. Horn, QAE Civil E. Jones, QAE Electrical B. H. Peck, P.M.0. Construction D. R. Keating, QA Group Supervisor P. Kyner, QA Group Electrical Supervisor D. B. Miller, Site Manager M. J. Shaffer, QA Electrical / Instrumentation Bechtel Power Corporation W. L. Barclay, Project Field QC Engineers A. J. Boos, Project Field Engineer L. A. Dreisbach, Project QA Engineer R. C. Hollar, Lead QA Engineer E. Smith, Lead QA Engineer All the above persons were present at the exit meeting held on December 20, 1979.
Licensee Action on Previously Id2ntified Items (Closed) Unresolved (329/78-15-03; 330/78-15-30 It was previously identi-fied that inadequate information was available on site relative to the cavity weldment seal welds of the poison encapsulated fuel cells. Drawings from Wachter Associates, the manufacturer of the High Density Spent Fuel Racks were available on site. The design does not utilize ccnventional encapsulated spent fuel tube design.
Functional or Program Areas Inspected 1.
Review of Action Taken on IE Bulletins and Circulars Procedure MPPN-18 dated May 8, 1979 titled, " Processing NRC-IE Bulletins, Circulars, and Information Notices" has been established to provide a standard method for the receipt, distribution, review, and preparation of required responses and actions required therein.
The inspector reviewed the information available on site relative to the following IE Bulletins and Circulars:
Bulletin 79-23-2-
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CPCo on their letter dated October 29, stated that the excitation
transformer neutral is of a floating type and that this will be verified during start up. The diesel generator full load test will be performed during preoperational tests.
Bulletin 79-25 Bechtel, the AE has not completed review.
Bulletin 79-11 CPCo does not use Westinghouse circuit breakers type DB50 and DB75 at the Midland Site.
Bulletin 79-09 As stated in their letter dated June 15, 1979, CPCo developed a preventive maintenance procedure, implementing the guidelines of General Electric Service Advice Letter 175 (CPDD) 9.3.A procedure.
Bulletin 78-08 The environmental qualifications of safety related equipment is currently being re-reviewed by Bechtel at their Ann Arbor offices.
Circular 79-02 Project Management Organization (PMO) Test Group have initiated four
" Recommended Actions" to correct the situations in the above circular.
Circular 79-17 CPCo does not have any SB12 General Electric type switches based on replies from B&W, the NSS supplier and Bechtel, the AE.
Circular 79-20 CPCo does not use GTE Sylvania PN type relay, Catalog SV12-11-AC with a 120V AC coil.
2.
Observation of Conduits in the Service Water Building The inspector observed the condition of the conduits entering the Service Water Building from the Auxiliary Building and determined that one of the conduits had been plugged to prevent water from seeping in through the conduit. The licensee stated that during site borings for the dewatering system, the cable trench was inadvertently damaged.
NCR 2072 dated April 16, 1979 was initiated to document that conduit 2BA074 entering the Service Water Structure through the north wall-3-
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at elevation 621' from duct bank has a stream of water about the
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size of a pencil flowing through it. Drawing E-510Q Section D is referenced for location. Field engineering recommended to repair the conduit in accordance with Note 27 Sheet 11B of drawing E-42(Q).
Note 27 states, " Remove concrete to expose an area 1 1/2" minimum around the area. Champer the inside edge of the hole to clean up and eliminate burrs and create a smoothe edge inside the conduit. Clean up the outside of the conduit around the damaged area and apply a section of PVC coupling, sufficient to completely cover the area and cement in place with PVC cement. Repair concrete per Section 17 of Civil Specification C-231. This will maintain the integrity of the conduit and the concrete.
Field Engineer's Report Form #E-553 dated May 27, 1979 indicated that all unused conduits were subjected to 100 psi pressure tests:
The following are the results:
Conduit Remarks IBA037 Cable in conduit 1BA001 Pressure dropped to 40 psi in 15 minutes 1BA003 No significant pressure drop 1BA038 No significant pressure drop 2BA04 No significant pressure drop 1BA002 No significant pressure drop 2BA043 No significant pressure drop 2AA062 No significant pressure drop 2AA063 No significant pressure drop 1BA004 Cable in cabinet IBA042 Cable in cabinet 1AA060 Cable in cabinet 2EA024 Cable in cabinet
2AA001 Cable in cabinet 2AA002 Cable in cabinet 1AA0 Cable in cabinet 1AA005 Cable in cabinet 2BA073 No significant pressure drop 2AA004 No signifi ant pressure drop 2AA005 No significant pressure drop 1AA002 No significant pressure drop 2BA074 No resistance to pressure. Subsequently, this conduit was pressurized with water which bubbled to the surface at a location where core boring was performed.
A fiber mandrel was pulled by hand through this conduit and obstructions were encountered at this location.
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The inspector stated that he has no further questions on this matter at this time. The damage to the cable trench will be repaired in the spring season, when the level of the lake water will be lowered.
hxit Interview The inspectors met with the licensee representatives (denoted in the Persons Contacted paragraph) at various times during their inspection activities. The scope and purpose of the inspection were outlined along with the summarizations of the results of the inspection. The licensee representatives acknowledged the indicated results.
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