ML20198J614
| ML20198J614 | |
| Person / Time | |
|---|---|
| Issue date: | 05/22/1986 |
| From: | Jeffrey Jacobson, Merschoff E NRC OFFICE OF INSPECTION & ENFORCEMENT (IE) |
| To: | |
| Shared Package | |
| ML20198J596 | List: |
| References | |
| REF-QA-99900294 NUDOCS 8606030166 | |
| Download: ML20198J614 (7) | |
Text
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ORGANIZATION: WESTINGHOUSE MEDIUM AC MOTOR DIVISION I
BUFFALO, NEW YORK REPORT INSPECTION lNSPECTION NO.: 99900294/86-01 DATE:
4/21-25/86
)N-SITE HOURS:
36 CORRESPONDENCE ADDRESS: Westinghouse Medium AC Motor Division ATTN: Mr. Tom Rehg Division General Manager P.O. Box 225 Buffalo, New York 14240 ORGANIZATIONAL CONTACT: Richard H. Delisle TELEPHONE NUMBER:
716-631-2020 NUCLEAR INDUSTRY ACTIVITY: Westinghouse manufactures medium sized AC motors used for a wide range of applications including those in which environmental qualification is required.
ASSIGNED INSPECTOR:
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f/n//6 J.B. Jpobgn eactive Inspection Section (RIS)
Date OTHERINSPECTOR(S):
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APPROVED BY:
/
Date E.W. Merschoff, Chip RIS, Vendor Program Branch INSPECTION BASES AND SCOPE:
A.
BASES:. Appendix B to 10 CFR Part 50 and 10 CFR Part 21.
B.
SCOPE: This inspection was conducted as part of the NRC's ongoing utility outage inspection program. Specific attention was paid to Westinghouse records relating to the supply of four Low Pressure Coolant Injection Room Cooler fan motors to the Dresden Nuclear Power Station.
PLANT SITE APPLICABILITY: Dresden 1, 2, and 3, (50-10/237/249);
Shoreham,(50-322).
R
1 ORGANIZATION: WESTINGHOUSE MEDIUM AC MOTOR DIVISION BUFFALO, NEW YORK REPORT INSPECTION NO_*
90000244/R6 01 RESULTS:
PAGE 2 of 5 A.
VIOLATIONS:
None B.
NONCONFORMANCES:
None C.
UNRESOLVED ITEMS:
None D.
STATUS OF PREVIOUS INSPECTION FINDINGS:
1.
(Closed) Nonconformance 99900294/82-01 A Westinghouse General order NA 40236 was incomplete in that pages were missing from two customer specifications. All nuclear material is now ordered through Westinghouse NSID in Pittsburgh where all specifications and purchase orders are kept. NSID forwards all specifications to Buffalo as required.
2.
(Closed) Nonconformance 99900294/82-01 B Error correction tags were not being stamped by the inspector after completion of the repair. The inspector reviewed error correction tags at two inspection stations and verified they are now being filled out correctly.
3.
(Closed) Nonconformance 99900294/82-01 C The Quality Control Instruction (QCI) Book #3 in Receiving Inspection was missing QCI #7 and was one revision behind on QCI #1. Various QCI Books were reviewed and found to contain all current QCI instruc-tions.
4.
(0 pen) Nonconformance 99900294/82-01 D The revisions of the Purchase Department Specifications were not being included on purchase orders. All current nuclear purchase orders had been packed for shipment to Pittsburgh and were unavail-able for inspection. The inspector was assured by the Purchasing Manager that revisions to the PDS were now being included on the purchase orders.
ORGANIZATION: WESTINGHOUSE MEDIUM AC MOTOR DIVISION BUFFALO, NEW YORK REPORT INSPECTION NO.-
99900294/86-01 RESULTS:
PAGE 3 of 6 5.
(Closed) Nonconformance 99900294/82-01 E The temperature control on oven #6 was four weeks overdue for calibration. The inspector verified that the calibration of various pieces of equipment was up to date..The calibration recall program was determined to be adequate.
6.
(Closed) Nonconformance 99900294/82-01 F1 The specifications for brazing (BMM291397) and dip and bake (BMM83334SC) did not define the applicable essential variables *.
The inspector verified that the essential variables had been identified and added to the specifications for brazing and dip and bake.
7.
(Closed) Nonconformance 99900294/82-01 F2 No shop practice sheet existed for brazing and the shop practice sheet for dip and bake was inconsistent with the process specifi-ca tion. The inspector verified that a shop practice sheet had been developed and implemented for brazing and that the shop practice sheet for dip and bake had been revised to agree with the process specification.
8.
(Closed) Nonconformance 99900294/82-01 F3 Shop practice sheets were not being fully implemented as observed by the failure to mask stator (.ases during dip and bake operations.
The masking process as stated in the shop practice sheet #21 and process specification BMM83334SC is optional.
No corrective action was required.
9.
(Closed) Nonconformance 99900294/82-01 F4 Inspection criteria were not being fully implemented during varnish checks. The inspector reviewed the varnish inspection criteria and verified that the viscosity and percent solids tests were being performed as directed. The sediment test was being accomplished by visual examination.
t ORGANIZATION: WESTINGHOUSE MEDIUM AC MOTOR DIVISION BUFFALO, NEW YORK REPORT INSPECTION NO.
99900294/86-01 RESULTS:
PAGE 4 of 6 E.
OTHER FINDINGS AND COMMENTS:
The Westinghouse Medium AC Motor Division has been purchased by Reliance Electric and at the time of the inspection production was very low. All current orders for nuclear safety components originate from Westinghouse NSID in Pittsburgh where orders are screened to ensure they include all necessary regulatory and technical information. Certificates of Confor-mance are provided by the Westinghouse Medium AC Motor Division in Buffalo.
1.
Review of Manufacturing Operations The inspector observed the manufacture of six nuclear Class 1E motors for use at Shoreham Nuclear Power Station. The six motors were at different stages of completion in the manufacturing process and at each stage the inspector verified that proper controls and procedures were being implemented. Among the. manufacturing processes witnessed were coil winding, final assembly, varnish dip and bake, stator assem-bly and inspection. At each station work is performed in accordance with process specifications or shop practice sheets both of which are listed on the manufacturing information sheets. The motor manufactur-ing information sheets list all required drawings, inspections, and special details necessary for the motor manufacture. The sheets are written in the motor engineering department and follow the motor throughout its assembly at the various locations within the plant.
2.
Review of LPCI (Low Pressure Coolant Injection) Room Cooler Motor Documentation The inspector reviewed the documents pertaining to the supply of four Low Pressure Coolant Injection Room Cooler motors to Dresden Nuclear Power Station. These motors were ordered through the Chicago Westinghouse sales office in May of 1983. The motors were ordered on Con Ed Purchase Order No. 276612 and in accordance with Bechtel Material Requisition Specification 13524-E-2E (Q). The Bechtel specification contained the technical and administration require-ments to be followed in the supply of the motors.
One section of the Bechtel Specification required the motors to be
~
able to withstand infrequent one minute intervals of 75% reduced voltage, under full load, without sustaining any damage. The in-spector reviewed the calculated speed vs torque tables for full and reduced voltage and agreed that the data indicated that the motors could perform under these circumstances as required.
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3 ORGANIZATION: WESTINGHOUSE MEDIUM AC MOTOR DIVISION BUFFALO, NEW YORK REPORT INSPECTION NO.-
99900294/86-01 RESULTS:
PAGE 5 of 6 Environmental Certification to IEEE 323-1974 was provided by Westinghouse Qualification Document MM-9112 " Class 1E Medium AC Motors (outside Containment)". This document qualified a wide range of A.C. Polyphase Induction Motors by type testing of several motorettes. The motorettes consisted of the individual motor components which were deemed susceptible to environmental conditions and included Dupont ML insulated wire, Nomex 410 slotcell and phase insulation, Chevron SRI No.1 grease, P.D. George " Pedigree" No.12-0-12 high temperature thenno-setting polyester varnish, and Bentley Harris silicon rubber glass tubing. The motors were quali-fied for a 40 year design life and were qualified only for use*
outside of containment.
Seismic qualification to IEEE 344-1975 and Bechtel Specification 13524-C-456(Q) was provided by a Westinghouse seismic analysis done 9/30/83. The qualification was done by a static analysis in which the motor was mathematically modeled as a " rigid" mass. The quali-fication is therefore only valid for motors that are rigidly mounted.
One section of the seismic analysis concerning motor foot stress cal-culations was reviewed and an assumed 20,000 psi cast iron tensile strength value was questioned. Westinghouse produced test results showing that the specific cast iron type had been tested up to 32,000 psi. No calculation errors were noted.
The inspector reviewed correspondence between Bechtel and Westinghouse (Bechtel CHRON 10788) which expressed concern over the Westinghouse supplied motors KVA code. The Westinghouse motors have a "J" code versus the "G" code of the General Electric Motors that they are replacing.
Concern was expressed over the suitability of the installed feeder circuit breakers for the motors at Dresden. This issue has not been resolved and it appears that a circuit breaker change may be required as motor in-rush, full load, and locked rotor currents are significantly different in the two motors.
3.
10 CFR Part 21 Program The inspector reviewed the Westinghouse 10 CFR Part 21 program and observed that both Part 21 and Section 206 of the Energy Reorgani-zation Act of 1974 were posted as required.
One request for a Part 21 evaluation from the Westinghouse HIMD (Heavy Industrial Motor Division) was on file. Westinghouse Medium AC Motor Division deter-mined this request concerning a substitute varnish on EQ qualified motors was not reportable as the varnish had been previously quali-fied.
Procedures for Part 21 implenentation were observed to be in place.
s.
ORGANIZATION: WESTINGHOUSE MEDIUM AC MOTOR DIVISION BUFFALO, NEW YORK REPORT INSPECTION NO.-
9990029a/86-01 RESULTS:
PAGE 6 of 5 4.
Internal Audits Internal audits are implemented via an internal audit schedule which is broken down into 18 parts with each of the 18 audits performed on a different medium motor division department on a monthly basis. All audits scheduled through February 1986 had been performed and closed out successfully.
5.
Source Inspection Reports Numerous source inspections were conducted by the Westinghouse
- Medium AC Motor Quality Assurance Department. One inspection report for an inspection done at Trott Electronics Inc., Clarence, N.Y., in May of 1984 was reviewed. The inspection was conducted in order to approve Trott Electronics as a company capable of calibrating Westinghouse owned Weston 329 polyphase wattmeters. The inspection was conducted by two Westinghouse Quality Control Supervisors and appeared to be thorough and adequate in depth.
6.
Inspector Qualifications Inspector qualification requirements were reviewed for both Class C and Class B inspectors.
Class C and Class B inspectors are required to be high school graduates or have equivalent related experience.
An oral test is given to all inspector candidates.
F.
Persons Contacted Gene Ross Lab Technician (Varnish)
- Tom Rehg Division General Manager Bob Joose Receipt Inspection Supervisor Jim Schraven QC Supervisor Dale Wickham Purchasing Manager Bob Euler Nuclear Product Sales Rep.
Jim Hardin QC Assembly Inspector Marv Ignatz QC Varnish Inspector Cris Hinca Stator Winding Foreman Bill Tendorf Seismic Engineer
- Attended Exit Meeting
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