IR 05000373/1981032
| ML20031B809 | |
| Person / Time | |
|---|---|
| Site: | LaSalle  |
| Issue date: | 09/18/1981 |
| From: | Gardner R, Hawkins F, Love R NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| To: | |
| Shared Package | |
| ML20031B807 | List: |
| References | |
| 50-373-81-32, 50-374-81-16, NUDOCS 8110060110 | |
| Download: ML20031B809 (5) | |
Text
.
U.S. NUCLEAR REGULATORY COMMISSION OFFICE OF INSPECTION AND ENFORCEMENT
REGION III
Reports No. 50-373/81-32; 50-374/81-16 Docket Nos. 50-373; 50-374 Licenses No. CPPR-99; CPPR-100 Licensee: Commonwealth Edison Company P.O. Box 767 Chicago, IL 60690 Facility N we: LaSalle County Stati u, Units 1 and 2 Inspection At:
7,aSalle Site, Marseilles, IL Inspection Cond,.rted. August 4-6, 20, 1981.
E '(\\. bh*
T!I N
Inspectors:
R. N. Gardner-r
'. S. Love
[O
[w R
U 9/l6/6l
i
I g
e Approved By:
E. C. Hawkins, Acting Chief 9/16/81 Plant Systems Section
'
I i
Inspection Summary Inspection on August 4-6, 20, 1981 (Reports No. 50-373/81-32; 50-374/81-16)
Areas Inspected: Followup on previously identified inspection findings.
This inspection involved a total of 40 inspector-hours onsite by two NRC n
inspectors.
Results: No items of noncompliance or deviations were identified.
8110060110 810922
PDR ADOCK 05000373
{
G PDR
.
DETAILS
,
Persons Contacted
.
Principal Licensee Employees
- J.
Geiseker, Staff Assistant W. Groszko, Project Construction
- E. Netzel, QA Engineer
- R. Preston, Electrical Construction Engineer T. Quaka, QA Superintendent
- K.
Steele, Lead Electrical Engineer
- B. Vine, QA Engineer Foley Construction
- J. Adee, QA Manager
- R. Lundgren, Project Manager Sargent and Lundy P. Bhatt, Senior Structural Engineer D. Haam, Project Manager G. Jones, Mechanical Project Engineer R. Polloqk, Mechanical Project Engineer
- Denotes those present at the exit interview.
Licensee Action on Previous Inspection Findings 1.
(OPEN) Unresolved Item (50-3'3/79-13-06): General Electric corres-pondence indicated that some selector 'nd pushbutton switches may have been manufactured without an approved Quality Assurance (QA)
program. Apparently, no measures were taken to evaluate the impact of the absence of the QA program. Further, seismic test documenta-tion was supplied for instruments but the documentation could not be substantiated as applying to the supplied instruments. The licensee initiated Quality Action Letter (QAL) #1697, dated April 19, 1979, requesting information and evaluations from Sargent and Lundy (S&L)
regarding this matter. To date, the information requested is incom-plete. This item will remain open pending the licensee's receipt of the complete response to QAL #1697.
2.
(CLOSED) Unresolved Item (50-373/78-24-01; 50-374/78-15-01): Non-seismic pipes located above safety related components. The Region II.T inspectors reviewed an S&L letter, dated March 13, 1981, with enclosed report number EMD-4266-027-211, Revision 0, " Assessment of Non-Category I Piping for Protection of Safety-Related Components During Seismic and Pool Related Events." The letter states, in part, "This report concludes that non-category I welded steel pipe as currently designed and supported conts. ins a sufficient margin to sustain dynamic loading without... support system failures or-2-
_.
_
.
~
overall system collapse." The Region III inspector discussed this
,
report with S&L, the Architect Engineer, and determined that the report satisfied the requirements delineated in Amendment 49 to the LaSalle FSAR.
-
3.
(CLOSED) Unresolved Item (50-373/78-24-02; 50-374/78-15-02): Pro-cedures exclude control cables from insulation resistance testing.
The licensee stated that all cables used as power feeds are meggered.
The Region III inspectors determined, based on IE letter (Reinmuth to Hayes) of June 24, 1981, that while the insulation resistance testing of low voltage cables is recommended, it is not an absolute requirement. This letter constitutes a satisfactory response to the
.
Concern.
4.
(CLOSED) Noncompliance (50-373/;9-13-09; 50-374/79-10-01): Reactor pressure / level recorder IB21-R623B, cables INB-356 and INB-358, and component SRU1B were incorrectly identified as non-class IE.
Amend-ment #48, dated February, 1980, to the FSAR now identifies the above cables and equipment as class IE.
The amendment also identifies the recorders as being seismically qualified. Nonconformance report (NCR) 180, prepared to follow-up this item, was closed on August 29, 1980. The Region III inspectors verified that the cables and re-corders are now physically identified as class IE.
5.
(CLOSED) Unresolved Item (50-373/79-21-01): The Residual Heat Removal (RHR) pumps and the Low Pressure Core Spray (LPCS) pump were removed for testing.
The Region III inspectors verified that the subject pumps have been reinstalled. The inspectors reviewed the Quality Control (QC) records pertaining to the retermination of affected electrical cables.
6.
(OPEN) Unresolved Item (50-373/79-34-01): Cable pan loading reports and the actual number of cables in cable pans 1062B-1BC and 250C-1YC did not aFree. During this inspection the Region III inspectors observed the following:
a.
Cable pan 1062B-1BC contains 189 cables while the cable loading report indicates it should contain 185 cables. Thus, the original 4 cable discrepancy still exists.
b.
The discrepancy (as originally reported in NRC report 79-34)
between the actual number of cables in cable pan 250C-1YC and the number which the cable loading report identified as being in the cable pan has not been resolved by the licensee.
This item will remain open pending resolution of the discrepancies identified in NRC inspection report 79-34.
7.
(OPEN) Unresolved Item (50-373/79-39-01) Review measures established by Sargent & Lundy (S&L) to control thermal loading of raceways. The inspector reviewed S&L Instruction PI-LS-14, Revision 1 (Cable Tray Loading Design Indexes), and thermal and static loading calculations-3-
.--
._
.-
_
. -.
-
.
for select cable trays, (See Item 8 of this report for details).
o Paragraph 8.3.3.1 of the FSAR indicates that the maximum fill for a 4-inch deep power cable tray is 2 inches (equals a design index of 1.0) while the manimum fill for 6 inch deep instrumentation and control tray is 3 inches (equals a design index of 1.0).
In actual prnctice, the calculations reviewed indicated a design index of between 1.28 and 1.64, although the watts / foot and pounds / foot were below the allowable limits established in S&L Instruction PI-LS-14.
This item will remain open until paragraph 8.3.3.1 of the FSAR is revised to reflect the actual tray fill criteria.
8.
(CLOSED) Unresolved Item (50-373/79-39-02): Sargent & Lundy (S&L)
stated that design calculations for power raceway, which have been identified by the design index scale as potentially nonconforming, will be performed near the completion of LaSalle Unit 1.
This timing is to allow verification of the final (as-built) conditions.
Using S&L Instruction PI-LS-14, Revision 1, (Cable Tray Loading Design Index), the inspector reviewed the thermal and static loading for select cable trays and found them to be within the limits established in S&L Instruction PI-LS-14.
Following is a summary of the calculations reviewed:
Class IE Allowed Actual Allowed Actual Design Tray No.
Watts PSF Pounds PSF Index 1129R
36.48 1.44 1514R
36.48
34.22 1.64 1609A
21.25 1.28 1612A
21.25 1.28 9.
(OPEN) Unresolved Item (50-373/80-44-03): Verify Gremar is an approval vendor and verify that the Gremar connector installed on triax cable INR316 is environmentally qualified. The subject connector was installed on triax cable # INR316 as a replacement for a.Raychem connector. The licensee stated that the installed Gremar connect:r will be replaced with a qualified Raychem connector.
This item will remain open until the Gremar connector has been replaced.
10.
(CLOSED) Unresolved Item (50-373/80-44-04): Review seismic qual-ificaticas of control room drop ceiling. The Region III inspector reviewed the seismic qualification data pertaining to the drop ceil-ing. The data was acceptable.
11.
(CLOSED) Unresolved Item (50-374/79-21-01): Review of seismic data for class IE Battery Racks. The Region III inspector reviewed the seismic qualification data pertaining to 120 volt DC Storage Battery Racks and 125 volt DC class IE Battery Racks and determined the data to be acceptable.
.
-4-
. _ _
, - _
..
..
,_
_,
._. _
_
_
..
.
.
..
.
12.
(CLOSED) Unresolved Item (50-373/81-26-03); 50-374/81-14-03):
.
Cable pulling procedure requires revision concerning calculations of maximum pulling tension for multiple cable pulls. The Region III inspector reviewed a revised copy of the Foley " Cable Pulling Procedurt," WI-400, and observed that the procedure now prescribes the proper method for calculating the combined pulling tension of multiple cable pulls.
Exit Interview The inspectors met with licensee representatives (denoted under Persons Contacted) at the conclusion of the inspection on August 6 and 20, 1981.
The inspectors summarized the scope of the inspection. The licensee acknowledged the information.
.
-5-
-
-
-
-
-
-
-
- - -
- - -
-
-
-
- - -
- - -
-
-
-
-
-
- -
- -
-