IR 05000483/1981020
| ML20031B789 | |
| Person / Time | |
|---|---|
| Site: | Callaway  |
| Issue date: | 09/17/1981 |
| From: | Hawkins F NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| To: | |
| Shared Package | |
| ML20031B785 | List: |
| References | |
| 50-483-81-20, NUDOCS 8110060090 | |
| Download: ML20031B789 (6) | |
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U.S. NUCLEAR REGULATORY COMMISSION
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OFFICE OF INSPECTION AND EhTORCEMENT
REGION III
Report No. 50-483/81-2')
Docket No. 50-483 License No. CPPR-139 Licensee: Union Electric Company Post Office Box 149 St. Louis, MO 63166 Facility Narne:
Callaway Nuclear Power Generating Plant, Unit 1 Inspection At:
Callaway Site, Callaway County, M0 Inspection Conducted: August 25-28,1981
Inspectors: R
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R. Mendez R. B. Landsman 7-l
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(In Office Review)
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Approved By:
F. C. Hawkins, Acting Chief
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Plant Systems Section Inspection Summary Inspection on August 25-28, 1981 (Report No. 50-483/81-20)
Areas Inspected: Observation of electrical cable installation activities; review of deficiency, nonconformance and inspection reports; review of work and inspection procedures. This it.spection involved a total of 59 inspector-hours onsite by two NRC inspectors.
Results: No items of noncompliance or deviations were identified.
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8110060090 810922 PDR ADUCK 03000483 G
FDR
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DETAILS s
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Persons Cgptacted
Ug*on Electric Company
- W. H. Weber, Manager Nuclear Construction
- S. M. Hogan, Quality Assurance Engineer
- J. V. Laux, Supervisory Engineer Qnality Assurance Construction
- M. J. Pechar, Quality Assurance Consultant
- R. L. Powers, Superrintendent Site Quality Assurance Daniel International Corporation (Daniel)
A. D. Arnold, Project Quality Manager
- M. K. Smith, Audit Response Coordinator
- G. M. Warblow, Services Manager
Delcon
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- J.
J. Mullen, Project Electrical Engineer J. C. Weaver, Project Electrical Manager The inspectors also contacted and interviewed other licensee and contractor personnel during this reporting period.
- Denotes those present at the exit meeting.
2.
Licensee Action on Previously Reported Items (Closed) Unresolved Item (50-483/81-02-01): There is no technical evideace to indicate that a cable jacket repaired, using the pro-cedure on Bechtel Drawing E-01013, Revision 4, will be returned to its original design characteristics or that qualification tests had been performed.
D. W. Capone to F. D. Fields letter, dated March 26, 1981, states
in part, "For the SNUPPS project, the cables, with the exception of speciality cables such as coaxial and triaxial, have been environ-mentally qualified without their overall Jacket.
... Flame tests for all cable types used in the SNUPPS design were tested with overall jacke's. The hest shrink sleeves proposed for the jacket repair are
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has been v t.ig for cable terminations and are qualified to IEEE-383.
These sing"es are compatible with the cable innulation and have the necessary fire retardant qualities. Also, the tape utilized...is
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.!1ame retardant.
...The repair is approved for use by the cable manufacturers." Based on the information provided and review of heat shrink sleeve (Raychem) qualification tests, this item is closed.
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(Closed) Noncompliance (50-483/81-02-02):
(1) There is'no procedure
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for the repair of damaged electrical cable jackets (instructions are contained on drawings only), (2) Daniel InternationalWork Procedures requiring that installed cables be kept free of construction materials and other debris were not followed.
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Daniel Procedure WP-303, Revision 8 (Installation of Wire and Cable)
has been revised to dncorporate the cable repair procedure as shown on Bechtel Drawing E01013, Revision 5.
b.
Observations of safety related electrical cable trays during this inspection indicates that the action taken by the licensee to keep the cable trays free of construction materials and other debris and to protect the installed cables is successful in that no noncom-pliances in this area were identified. This item is closed.
(Closed) Nonecmpliance (50-483/81-15-62): Covers and/or panel closures are not being routinely reinstalled at the completion of work on elec-trical panels. Observation of electrical panels, cabinets, switchgears, etc., durir.g this inspection indicates that the Preventative Maintenance Program established by the licensee is effective in that these items observed were closed aad/or covered or were being worked on.
This item is closed.
(Closed) Unresolved Item (50-483/81-14-02):
(1) Minimum cable bend radius could be exceeded if minimum radius conduit bends were sade as
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permitted in 'JP-302, (2) Cable sidewall pressure could be exceeded during cable pulling if four 90 degree conduit bends are utilized cs permitted in WP-303. Design requirements and cable pull tension and sidewall pressure calculations were reviewed for select cables pull (d into conduit and the inspectors are satisified that the above areas of concern are being reviewed by engineering prior to cable pull.
This item is closed.
(Closed) Unresolved Item (50-4'3/81-14-05): During a previous in-spection it was observed that cable Trays IC8K50, IJ1K30, IC8K52 and IJ1K34 were installed and the A/E had these trays flagged as being on
" HOLD."
It could not be determined during that inspection if the subject trays had been installed while in a HOLD status.
Investigation by the licensee indicated that the subject cable trays had been installed by the electrical contractor while they were on HOLD by the A/E. This was documented on Deficiency Report (DR)
Number 2SD-4271-E. This DR addresses the following two items:
a.
DIC Electrical Engineering issued Work Authorization (WA)
Number WA-TYX-3123 for installation of the subject trays while in a HOLD status which was a violation of WP-301, Paragraph 4.2.1.
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DIC Electrical Engineering failed to initiate a Deficiency Report on a known deficiency in a timely manner in violation of AP-VII-02, Paragraph
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The inspectors are satisified with the action taken by the licensee.
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This item.is closed.
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(Closed) Unresolved Item (50-483/80-27-06): During a previobs sq inspection of dome repairs, concrete was observed to be flaking off in one area. The inspector has determined from discussions with
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the licensee that the area in geestion was cosmetic. As ruch, site procedures do n(i require any documentation of the repair for this, area. The licensee representative has obtained from interviews with s
ugnizant contractor personnel that the area in question was an area T
of slight depression in the dome surface.
he material observed to be " flaking-off" was troweled concrete mortar adjacent to the repaired area and is of no consequence.
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Functional or Program Areas Inspected
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Observation of Electrical Work Activities (1)' yhe Region III inspectors observed that the licensee has made
.N a vast improvement in the support and protection of Class lE h
coiled cables. All coiled cables observed were properly sup-
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ported and with softners so as to protect the cables.
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No items of noncompliance were identified in this area.
(2) During a review of electrical cable installation activities,
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the Region III in::pectors observed that as of August 26, 1981, y,
there were 67 cables installed in Cable Tray IU1B09 which is
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located in the. Control Building at the 2000' elevation. A
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review of the licensee's electrical contractors records in-
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L dicated that there were 64 cables in the subject tray.
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could not be. determined during this inspection the reason for the discrepancp,
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This item is u esolved pending a more thorough _ review of engineering and QC records and the identification of the s.W cables installtd in the subject tray.
(50-483/81-20-01)
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(3) The Region III inspectors observed various electrical panels,
cabinets, and twitchgears for proper terminations, cable m support, cable ti nd radius and cable separations. These com-(pontats were also checked for proper storage and maintenance.
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No ltems of nonco'apliance were identified.
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(4) The Region'III inspectors observed the licensee's electrical contractor Q the process of replacing the cables for elec-
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trical penetration number 2ZNE268. The licensee informed the
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inspectors that.the cables would also be replaced in penetra-
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tions 2ZSE219 and 2ZSE225 because of discrepancies between the cables Installed and the documentation received from the pene-
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tration manufacturer (Bduker-Ramo).
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A No items of noncompliance 3ere identified.
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b.
Observation of Electrical Procedures and Records (1) The Region III inspectors observed that Daniel Procedures
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WP-303, Revision 8, (Installation of Wire and Cabl*e) and QCP-303, Revision 7, (Inspection of Cable Pulling) did not address how the licensee was going to verify that the cable pulling tension had not been exceeded when small cable and/or instrument cables were pulled.
(i.e., cables that have a maximum pulling tension that is less than the force that can be exerted on the cable by one person. Tests performed by Daniel Engineering and Quality Control personnel indicates that a man can exert approximately a 125 pound pull on a cable.) Bechtel Drawing Number E-01013(Q), Revision 5, lists maximum pulling tensions as low as 11.3 pound when s
using a pulling eye and as low as 30 pounds when using a basket grip to pull the cables. The inspectors were in-formed that only a limited number or cables in the above described cate2ory have been pulled to date.
Pending a review of cable pulling records to verify that cable pulling tensions have not been exceeded, this item is unresolved.
(50-483/81-20-02)
(2) The Region III inspectors observed that Daniel Procedures WP-303, Revision 8, (Installation of Wire and Cable) and QCP-303, Revision 7, (Inspection of Cable Pulling) had some minor errors that the licensee agreed to correct.
They are:
(a) An asterisk, which denotes an QC HOLD point, was missing at Paragraph 4.2.11 in WP-303.
The body of the paragraph indicates that QC has to be present when cable is pre-cut in preparatian for pulling.
(b) Bechtel Drawing E-01013(Q), Paragraph 5.3.10, states
in part, " Medium voltage cables that are in a protected environment shall have their ends suitably sealed."
This requirement was missing from Paragraph 3.32 in WP-303 but in actual practice, the inspectors observed that the cable ends were being sealed.
(c) Only one of the five insnection forms in Procedure QCP-303 requires the " review and acceptance" be by a Level II QC inspector.
In all records reviewad, the
" review and acceptance" was by a Level II inspector.
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Pending verification that the subject procedures have
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been revised to correct the above noted errors, these items are roen.
(50-483/81-20-03)
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4 Unresolved Items
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Unresolved items are matters about which more information is requirdd in order to ascertain whether they are acceptable items or items of "noncora-pliance or deviations. Unresolved item; disclosed during this inspection are discussed in Paragraphs 3.a. (2) and 3.b. (1).
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Open Items Open items are matters, not otherwise categorized in the report, that need to be followed up on in a future inspection. Open items disclosed during this inspection are discussed in Paragraph 3.b.(2).
Exit Meeting The i'spectors met with licensee representatives (denoted under persons contacted) on August 28, 1981. The inspectors sannarized the scope and findings of the inspection. The licensee representatives acknowledged the findings reported in previous paragraphs.
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