ML18079B003
| ML18079B003 | |
| Person / Time | |
|---|---|
| Site: | Salem  |
| Issue date: | 08/02/1979 |
| From: | Caphton D, Tanya Smith NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I) |
| To: | |
| Shared Package | |
| ML18079B002 | List: |
| References | |
| 50-272-79-20, 50-311-79-32, NUDOCS 7910010371 | |
| Download: ML18079B003 (5) | |
See also: IR 05000272/1979020
Text
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U.S. NUCLEAR REGULATORY COMMISSION
OFFICE OF INSPECTION AND ENFORCEMENT
Region I
Report No. 79-20/79-32
Docket No. 50-272/50-311
License No. DPR-70/CPPR-53
Priority:
Category:
C
Licensee:
Public Service Electric & Gas Company
80 Park Place
Newark, New Jersey 07101
Facility Name:
Salem Nuclear Generating Station, Unit 1 & 2
Approved by:
Inspection Summary:
- June l , 1979
Inspector
Chief, Nuclear Support
RO & NS Branch
date signed
1'/2hcz
- crate s i gned
Inspection on May 30, 1979 to June 1, 1979 (Co~bined Report.Nos.
50-272/79~20 and 50-311/79-32
Areas Inspected:
Routine, unannounced inspection by a regional based
inspector of the Unit l containment integrated leak rate test procedure;
and licensee action on previous inspection findings; and the Unit 2
containment integrated leak rate test report.
The inspection involved
20 inspector-hours (Unit 1 - 10 hours1.157407e-4 days <br />0.00278 hours <br />1.653439e-5 weeks <br />3.805e-6 months <br />, Unit 2 - 10 *hours) on site by
one NRC regional based inspector.
Results:
No items of noncompliance were identified.
9*
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DETAILS
1.
Persons Contacted
2.
The below listed technical and supervisory personnel were con-
tacted.
B. Canfield, Maintenance Supervisor
K. Kieper, Material Test Engineer
- M. Metcalf, QA Engineer, Resident Group
- E. Meyer, P*roject QA Engineer
J. Stillman, Station QA Engineer
- J. Zupko, Chief Engineer
, *Denotes those present at the exit interview.
Licensee Action on. Previous Inspection Findings
(Closed) Open . .Item (272/79-10-01):
The inspector revi'ewed the
latest draft of"the containment integrated leak rate test (CILRT)
procedure SP.Co) *4.6.1.2, "Containment System - Type A lnteg:rel\\ted
___ ,
Leak Rate Test Unit No. 1
11
The resolution of each part of t11*e*
open item i's presented below as numbered in the initial report.
(1)
The procedure has b~en revised to require
that the test be run for 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />.
(2)(3) The Acceptance criteria and data evaluation
technique for the CILRT have been revised to
reflect current NRC positions.
(4)
An adequate warning statement has* been added to
the procedure concerning leak repairs during the
test.
(5)(6) Provisions have been made in the procedure to
require maintaining an events *log, and to log
hourly atmospheric data as required by ANSI N45.4.
(7)
Th~ procedure has been revised to require that
test data be corrected for instrumental error as
required by lOCFR50 Appendix J.
3.
(8)
(9)
( l 0)
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The procedure requires that reactor coolant
systems and containment sump level changes
be measured over the duration of the test.
Level changes will be evaluated, and a
correction made to the measured leak rate
as required.
A data sheet has been incorporated into the
procedure for recording instrument volume
weighing factors. A plan has been included
outlining the procedure which will be used
to reassign those factors due to instrument
failure during the test.
Penetrations not vented and drained as
required by 10CFR50 Appendix J are listed
in the procedure.
Type C test leakage of
those penetrations will be added on to "the
measured leak rate prior to comparison with
the acceptance criteria.
(11) Data rejection criteria have been added to the
procedure.
CILRT Valve Lineups
The inspector reviewed the valve lineup portion of procedure
SP(o) 4.6.1.2, "Containment System - Type A Integrated Leak Rate
Test Unit 1
11
, and verified that a valve lineup* was provided
for all systems penetrating the containment, penetrations were
drained and vented as required by 10CFR50 Appendix J and that
no artificial leakage barriers or leakage paths were created.
The inspector identified no discrepancies in thi~ review and
has no further questions in this area at this time.
4.
Containment Integrated Leak Rate Test
a.
Genera 1
The following documents and procedures were reviewed by
the inspector:
11Report on Reactor Containment Integrated Leak Rate
Test Unit No. 2
11
, dated May 29, 1979.
.. ..
)
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DTP 30-LRT-3, Revisfon 0,
11Reactor Containment Type A
11 dated December 12, 1978.
The above references were reviewed for accurate data trans-
cription, proper implementation of procedural changes,
. correctness of the* analytical methods, and the accur.ate
recording of significant events during the test.
No items
of noncompliance*were identified.
b.
Satisfactory CILRT
- Using raw data, the inspector independently calculated the
containment leak rate.
The results are presented in Table
1. The inspector's independent leak rate calculations
confirm the licensee's report of a successful CILRT.
5.
Exit Interview
At the fospection's end, the inspector held a *meeting (-See Detail
1 for attendees) to discuss the inspection scope and findings ..
No items of noncompliance were identified and there were no
unresolved items.
Item
1.
2.
3.
4.
5.
TABLE 1
December 1978 - CILRT Conducted at Pa (47 PSIG) at Salem Nuclear Generating Station Unit 2
Acceptance
Criteria
Containment Leak Rate
(Mass Point) -
Upper 95% Confidence Level
on Leak Rate (Mass Point)
Local Leak Rate Test
Additions (Type B & C)
Containment Leak Rate at
Upper 95% Confidence Level
Plus Required Additions
0.75La = .075
Supplemental Verification
Test Difference
0.25La = :025
Reported
Results
0.0309
0.0354
0.0002
0.0478(2} -
0.024
Inspector*s-
Findings
0.031
0.035
0.0002
0.048
0.024
Notes:
(1)
All data reported in weight percent per day.
(2)
Includes 0.0122 weight percent per day from instrument error analysis irl lieu
of correcting raw data for instrument error.
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