IR 05000358/1981002
| ML20031G050 | |
| Person / Time | |
|---|---|
| Site: | Zimmer |
| Issue date: | 10/01/1981 |
| From: | Barrett P, Hawkins F NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
| To: | |
| Shared Package | |
| ML20031G047 | List: |
| References | |
| 50-358-81-02, 50-358-81-2, NUDOCS 8110200729 | |
| Download: ML20031G050 (6) | |
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U.S. NUCLEAR REGULATORY COMMISSION
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OFFICE OF INSPECTION OF ENFORCEMENT
REGION III
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Repor. No. 50-358/81-02
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Docket No. 50-358 License No. CPPR-88 Licensee: Cincinnati Gas and Electric Company 139 East 4th Street Cincinnati, OH 45201
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Facility Name: William H. Zimmer Power Station Inspection At:
Zimmer Site, Moscow, OH Inspection Conducted: Januar 5-7, and March 11, 1981 f C.Sent$
Inspector:
P. A. Barr t 6cf. /, /N/
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~i it Approved By:
F. C. Hawkins, Acting Chief iC/f / 8 /
Plant Systems Section Inspection Summary Inspection on January 5-7, and March 11, 1981 Report No. 50-358/81-02)
Areas Inspected: Design change implementation; calibration control of electrical and mechanical test instruments; control of temporary cable connections; QA turnover; and a reported 10 CFR 50.55(e) condition.
The inspection involved a total of 25 inspector-hours onsite by one NRC inspector.
Results: No items of noncompliance or deviations were ide *.ified.
'P1102OO729 811oog
{DRADOCK 05000358 PDR
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DETAILS
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Persons Contacted Cincinnati Gas and Electric Company
- *W. W. Schweirs, QA Manager
- R. P. Ehas, Quality Control Engineer
- I. Plavsic, EOTD
- B. K. Culver, General Construction
- S. C. Swain, Construction Manager
- J.
Wald, EPD
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Schulte, Laboratory Testing J. 1. Berberich, Laboratory Foreman J. Thieman, Test Engineer R. Eyer, Sr. Test Foreman S. Hunter, General Test Foreman Kaiser Engineers, Inc.
- P. S. Gittings, QA Manager Foothill Electric Company
- B. Evans
- Denotes those attending the exit interview Functional or Program Areas Inspected 1.
Implementation of Design Change On January 5-6, 1981, the Region III inspector observed the rein-forcement modifications activities, as specified on Design Document Change #SLE-501, Revision 1, to hangers 1HV4 and 1HV5 (identified on Sargent & Lundy drawing #E-75, Revision G).
Prior to the Region III inspector arrival in the plant, a section of hanger #1HV4 had already been removed from installation and shipped to the onsite fabrication shop for modification. A section of hanger #1HV5 was in the process of being removed from installation. Both hangers had been located as specified on drawing #E-75, Revision G.
The Region III inspector later inspected both hangers at the fabri-cation shop. Hanger IHV4 was inspected after the modification was completed. The modification was completed as required by DDC
- SLE-501, Revision 1.
The additional welds were visually in com-pliance with AWS D1.1-1972 Code.
The in process modification activities of hanger 1HV5 were observed.
The reinforcement was added as specified on DDC #SLE-501 Revision 1.
Welder #LHK made the required welds in accordance with the specified 2-
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weld procedure using the required type and size of weld rod. The
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welds were in visual compliance with the AWS D1.1-1972 Code. Welder
- LHK's qualification records indicated that he was qualified for the j
weld activities that were performed. The weld rod issue form also indicated that the proper weld rod had been issued for the modifica-tions.
2.
Verification of Calibrated Electrical Test Instruments On January 6, 1981, the Region III inspector observed the cal-a.
ibration stickers which identified the dates of required recal-ibration, on the following electrical test instruments located in the site Electrical Operations Test Department, E0TD. The instruments are used in the construction testing and startup phases:
(1) Wheatstone bridge #TD 71.5 due March 24, 1981.
(2) AC High Potential Tester (3000 v) #TD 280.1 due June 5, 1981.
(3) AC Voltmeter #TD 161.1 due April 7, 1981.
(4) TTR Auxiliary Transformer #TD 95.5 due April 10, 1981.
(5) Wattmeter #TD 43.5 due January 31, 1981 The licensee also provided certificates of calibration from the CG&E Queengate Laboratory which substantiated the calibration dates of each of the above test instruments. All of the above calibration intervals were within the six month period specified in Electrical Construction Test Procedure #EC-16, Revision 2.
b.
On January 7, 1981 the Region III inspector went to the Queens-gate Laboratory to verify the calibration traceability to the National Bureau of Standards, NBS, for each of the five above instruments:
(1) The Wheatstone Bridge had been calibrated with a set of precision resistors (1, 10, 100, 1000, and 10,000 ohm)
which were traceable to the NBd. However, the last com-parison of the resistors to NBS standards were from 6 to 31 years ago (e.g. the 1 ohm resistor was last compared in March, 1959). The licensee stated that there was no corporate policy regarding frequency of recalibration to NBS for primary standards such as precision resistors.
This item is unresolved pending determination and establish-ment of the recalibration frequency, if required. The frequency should be based on stability, purpose, and degree of usage.
(358/81-02-01A)
(2) The High Potential Tester had been calibrated with an A.C.
and D.C. voltmeter (Laboratory #V-29-I) which had been calibrated on July 23, 1980 with calibrator #2738.
Cali-brator #2738 was certified traceable to NBS by the manu-facturer (RFL Industries) on June 30, 1980.
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(3) The AC Voltmeter had been calibrated with Calibrator
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- 2738. The Measuring and Test Equipment Calibration Pro-cedure #TE-3, Revision 1 used by the laboratory only specified voltmeter #V-29-I to be used for the calibration activities, not calibrator #2738. The licensee indicated that calibrator #2738 had been obtained relatively recently (after Procedure #TE-3, Revision 1 had been issued) and was qualified for the test. The licensee stated that the test procedure and records will be modified where necessary to reflect the actual test equipment used in the calibra-tion activity.
This item will be reviewed during a subse-quent inspection.
(358/81-02-02)
(4) The Transformer (voltmeter) had been calibrated with voltmeter #V-29-I which was traceable to NBS.
(5) The Wattmeter had been calibrated with wattmeter #W-23-I which had been calibrated with potentiometer standardizing set #X-30-I and standard shunt resistors #S-89-I (cal-ibrated June 1977 and June 1979) and SC-9 which were trace-able to NBS.
The Region III inspector made a brief review of test procedures TE-3, Revision 1; TE-7, Revision 0; and TE-53, Revision 0.
The procedures appeared appropriate for the above calibration activities, c.
On January 7, 1981 the Region III inspector observed the inprocess calibration of Insulation Resistance Test Device
- TD 61.25. The calibration activities were performed with procedure #TE-5, Revision 0, using various fixed resistors.
Some of the resistors had been measured with D.C. voltmeter
- 33.9 and D.C. ammeter #MA 18.7 on December 1. 1980. The meters were last calibrated on November 17, 1977. Again the recalibration frequency had not been established for primary standards (meters). The laboratory meters did not comply with the calibration frequency of six months as specified for site test meters. This item is part of un-resolved item 358/81-02-01 above.
(358/81-02-01B)
Meters MA 18.7 and 33.9 were calibrated with potentiometer standardizing set #X-31-I which was calibrated with standard shunt resistors #S-89-I (traceable to NBS on June 1977 and June 1979) or S-9-1 (traceable to NBS on April 1965); and universal potentiometer #X-149 calibrated June 1977 and May 1979.
The remaining fixed resistors had not been verified by any instruments (traceable or non-traceable to the NBS).
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On January 7, 1981 all of the resistors were tagged with
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the resistance values (in ohms) as specified by the manu-facturers or previous laboratory comparisons. On March 11, 1981, the licensee provided the Region III inspector with test data results in which all of the fixed resistors used for calibration activities at the Queensgate Laboratory had been measured with appropriately calibrated test equipment.
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The results indicated that actual measured resistances were not appreciably different, if at all different, from the resistances marked on the individual resistors.
The inspector noted that calibration procedure number was not recorded on the above test record and on other pre-viously completed calibraten tests, as required by the test procedures. The Region III inspector also noted that there was only one applicable test procedure available for each of the different types of tests. The licensee stated that they would immediately start recording the procedure numbers.
3.
Verification of Calibrated Mechanical Test Instruments On January 7,1981 the Region III inspector reviewed the calibration stickers and records which identified the dates of required recali-bration, on the following mechanical test instruments which are used in the pre-operational and operational phases:
a.
Differential Fressure (0-300 inches of water) Instrument #TGA-103 was calibrated on December 9, 1980 with instrument #TGA-222.
1GA-222 was calibrated on September 17, 1980 with instrument TPT-004 and TDW-247 which were calibrated in April 1979.
(TPT-004 and TDW-247 had a designated calibration period of three years.)
b.
Digital Counter used to measure Pulses / Frequency, #TDC-125, was certified as calibrated on December 26, 1980 from the manufact-urer (Tektronix). The designated calibration frequency was one year.
c.
Pressure gauge (measured in inches of oil) #TGA-016, was cal-ibrated on July 11, 1980 with instrument #TDW-246. TDW-246 was due for calibration November 7, 1981 and was traceable to NBS.
During the review of the calibration records, the Region III inspec-tor noted that the record filing system was set up to flag safety related instruments based on the device / standard with which they had been calibrated. Thus, if a device / standard was found to be out of calibration, the effected instruments could be readily identified i
and corrected.
The Region III inspector requested the licensee to define the controls and the organization responsible for the initial calibration and frequency of calibration throughout all phases of the plant life-5-
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(i.e. construction through operations) of process instrumentation a
(e.g. voltmeters on switchgear). Discussichs with the pertinent CG&E personnel in the QA, EOTD, and Instrumentation & Controls De-partment (I&C) indicated that controls had not been established and that there was apparent confusion as to who is responsible for these calibration activities. EOTD appeared to be responsible for the initial calibrations only. This item is unresolved pending a more
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in-depth review by the NRC and the licensee.
(358/ 81-02-03)
4.
Temporary Electrical Cable Connections On January 6, 1981, the Region III inspector observed the temporary electrical connections (jumpers) identified by procedure TC-17; tag numbers 1229, 928, and 1083; and Sargent & Lundy drawings E-1927, revision D; E-2416, Revision R; and E-208', Revision AF respectively.
The jumpers were installed as designed and controlled on '.he respec-tive Data Sheets (EC-17).
5.
QA Turnover On January 6,1981, the Region III inspector obtained copies of pro-cedures and schedules for future review by the NRC of the controls and implementation of the site construction quality assurance turn-over. The QA Turnover is required to verify that inspections have been made to assure that all installation activities cotply with design, purchase, and construction test requirements.
6.
Licensee Notification Pursuant to 10 CFR 50.55(e)
On January 7,1981, the licensee informed the Region III inspector of a condition pursuant to the requirements of 10 CFR 50.55(e). The condition involved the failure of welds at the sheet piling of the intake flume to the Service Water Pump Structure.
In letter
- QA-1387(S-1) dated Febre2ry 2, 1981, to Region III, the licensee documented the above condition. The condition will be routinely reviewed as a 10 CFR 50.55(e) report.
Unresolved Items Unres-!ved items are items for which additional information is required to determine if the item is acceptable or in noncompliance with requirements.
Two unresolved items are addressed in paragraphs 2.b. (1), 2.c, and 3.
Exit Interview The inspector met with the licensee representatives at the conclusion of the inspection on January 7,1981 and summarized the purpose and findings of the inspection. The licensee acknowledged the findings.
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