ML19253C699
| ML19253C699 | |
| Person / Time | |
|---|---|
| Site: | Rancho Seco |
| Issue date: | 11/26/1979 |
| From: | Engelken R NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION V) |
| To: | Mattimoe J SACRAMENTO MUNICIPAL UTILITY DISTRICT |
| References | |
| NUDOCS 7912110273 | |
| Download: ML19253C699 (1) | |
Text
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UNITED STATES ll-E j*
.,,7 NUCLEAR REGULATORY COMMISSION a..
.: s REGION V 8
1990 N. CALIFORNIA BOULEVARD O
,8 SUITE 202, WALNUT CREEK PLAZA WALNUT CREEK, CALIFORNI A 94596 tiovember 26, 1979 Docket tio. 50-312 Sacramento Municipal Utility District P. O. Box 15830 Sacramento, California 96813 Attention: Mr. John J. Mattimoe Assistant General Manager Gentlemen:
The enclosed Circular 79-23 is forwarded to you for your information.
fio written response to this Circular is required.
If you have any questions related to the subject, please contact this office.
Sincerely, bL dh-m R. H. Engelken Director
Enclosures:
1.
IE Circular tio. 79-23 2.
List of Plants That May Have Received Defective Starter or Contactors 3.
List of Currently Issued IE Circulars cc w/ enclosures:
R. J. Rodriguez, SMUD L. G. Schwieger, SMUD ls40 J34 q
7912110 Q
t!r!ITED STATES SSINS No.:
6830 NUCLEAR REGULATORY COMMISSION Accession t'o:
0FFICE OF If1SPECTI0fl Afl0 ENFORCEfiENT 7910250496 WASHINGTON, D.C.
20555 November 26, 1979 IE Circular No. 79-23 MOTOR STARTERS AND CONTACT 0RS FAILED TO OPERATE Gould, Inc., Electrical Products Grouo, recorted to the NRC on Seotenber 11, 1979 potential defects in certain NEMA size 3, Starters and Contactors. A possible binding or seisure of the carrier assembly, within the suoport plate of the stationary contact assenbly, is caused by an undersized dinension of the supoort leos.
Starters and contactors with date code 7822 to 7935, nodel and serial numbers A10, All, A12, A13, Ala, A20, A21, A22, and P10 are involved.
Faulty units were nanufactured and distributed between June 1,1978 and August 30, 1979.
The attached listing of nuclear plants, which have received some of this motor control equionent, represents a orelininary check of shionent records. This listing, however, nay not be conolete.
Gould, Inc., will recall uninstalled itens for retrofit and has retrofit kits available for field installation.
Based on the above, licensees are advised to verify all rotor starter and contactor shipments received fron Gould, Inc., between June 1,1978 and August 30, 1979, and assure that applicable model and serial number conoonents are corrected by retrofit and subsequent electrical operation tests.
No written response to this Circular is required.
If you desire additional infomation regardina this ratter, contact the Director of the appropriate NRC Regional Office.
1540 135
According to a preliminary check of Gould's shipment records, the following nuclear facilities have been shipped motor control equipment which could include one or more defective NEMA Size 3 starters or contactors:
Purchase Date Facility Owner / Contractor Order Shipped Farley Nuclear Plant, Unit 1 Alabama Power FNP1-3676 7-21-78 Operation 8-77 Bechtel FNP2-131 7-20-78 FNP2-125B 4-24-79 Arkansas Nuclear Plt. One Unit 2 Arkansas Power & Light 6600-E2011-AC 12-18-78 Operation 12-77 Bechtel Rev. 1B Sharon Harris Nuclear Plt.
Carolina Power and Light NY-435120 7-31-79 Unit 1 Construction Ebasco 8-20-79 8-31-79 Zimmer Nuclear Station Unit 1 Cincinnati G & E Z-50001 12-14-78 Construction Midlana Consumers Power Co.
7220-E-7-AC Various Ship-Construction Bechtel ment in 78 & 79 Fermi 2 Nuclear Station Detroit Edison 1E-90235 8-14-78 Construction Sargent & Lundy Change Order 6 Beaver Valley Unit 2 Duquesne Light Co.
2BV-310 Various Ship-Construction Stone & Webster ment in 78 & 79 Clinton Nuclear Station Units Illnois Power Co.
Contract K-2976 8-24-78 1&2 Construction Baldwin Assoc.
Wolf Creek Unit 1 Kansas Gas & Electric 10466-E-018-1 Various Ship-Construction Bechtel (SNUPPS) ment in 78 & 79 San Onofre Nuclear Gen. Sta 2/3 Limi torque 3A4777 12-26-78 Construction Kuosheng Nuclear Pwr. Sta. Units Taiwan Power Co.
9713-E-0003A 1-8-79 1&2 Construction Bechtel Bellefonte Nuclear Plant TVA 76K5-86242 Various Ship-Cons truction ment in 78 & 79 Watts Bar Units 1&2 TVA 74C5-84646 Varicus Ship-Construction ments in 78 &
79 Callaway Unit 1 Union Electric 10466-E-018-2 Various Ship-Construction Bechtel (SUUPPS) ments in 78 &
79 WPPSS Huclear Project Unit 2 WPPSS Contract No.
Various Ship-Construction Burns & Roe 49 C/D 7 ments in 78
& 79 1540 136
'IE. Circular No. 79-23 Enclosure November 26, 1979 RECENTLY ISSUED IE CIRCULARS Circular Subject Date of Issued to No.
Issue 79-22 Stroke Times for Power 11/16/79 All Power Reactor Operated Relief Valves Operating Facilities and All Utilities Having a CP 79-21 Prevention of Unplanned 10/19/79 All holders of Power Releases of Radioactivity Reactor OLs and cps 79-20 Failure Of GTE Sylvania Relay 9/24/79 All utilities having a Type PM Bulletin 7305, Catalog CP 5U12-11-AC With A 120V AC Coil 79-19 Loose Locking Devices on 9/13/79 All Power Reactor Ingersoll-Rand Pumps Operating facilities and all utilities having a CP 79-18 Proper Installation of 9/10/79 All Holders of a Target Rock Safety-Relief Power Reactor OL Valves or CP 79-17 Contact Problem in SB-12 8/14/79 All Power Reactor Switches on General Electric Licensees with a CP Company Metalclad Circuit and/or OL Breakers 79-16 Excessive Radiation Exposures 8/16/79 All Radiography To Members Of The General Public Licensees And A Radiographer 79-15 Bursting of High Pressure Hose 8/8/79 All Materials Priority 1, and Malfunction of Relief Fuel Cycle and Operating Valve "0" Ring in Certain Self-Power Reactor Licensees Contained Breathing Apparatus 79-14 Unauthorized Procurement and 7/13/79 All Medical Licensees Distribution of XE-133 except Teletheraphy Medical Licensees and to all Radiopharmaceu-tical Suppliers 1540 137