ML19305C309
| ML19305C309 | |
| Person / Time | |
|---|---|
| Issue date: | 03/05/1980 |
| From: | Feit R NRC - RRG# 1-25 QUALIFICATION TESTING EVALUATION |
| To: | NRC - RRG# 1-25 QUALIFICATION TESTING EVALUATION |
| Shared Package | |
| ML19305C304 | List: |
| References | |
| NUDOCS 8003260507 | |
| Download: ML19305C309 (3) | |
Text
.
3 O
QUALIFICATION TESTING EVALUATION (QTE) REVIEW GROUP MEETING Name: Ronald Feit Date and Place: February 14, 1980; Bethesda, MD
Purpose:
To discuss 1) Commission-directed connector test QTE research, I
and 2) future QTE research work.
Discussion I
1.
In accordance with a previous Commission directive, RSR initiated a project to conduct confirmatory LOCA qualification tests on electrical connectors identical to those in use in operating power plants. The first test series on Browns Ferry Unit 3 connectors was completed in j
November 1979.
The current program plan calls for conducting one more series of tests.
IE has identified connectors from the McGuire plant manufactured by the D.G. O'Brien Company (as part of their containment penetrations) to be used in the next series of tests.
Detailed review of the LOCA qualification data showed that a seal material change was J
made during the sequential test series after the thennal aging and radiation portions of the test were complete. However, the thermal aging and radiation part of the test was not rerun and qualification was established by analysis of the material and comparison to other radiation data on similar material. Although this approach is allowed by the IEEE standard, current regulatory practice is to require that aging and radiation j
qualification be demonstrated by test. Accordingly, the Chairman recommended i
to the Review Group that the McGuire test be conducted including both thermal aging and radiation. The remainder of the test sequence would be identical to that used by Duke Power. A letter of agreement will be prepared to be cosigned by the responsible Division Directors from IE, NRR and RES.
Sandia will be requested to prepare a test plan for review by the QTE Review Group as was done for the Browns Ferry Unit 3 test series.
This test plan will cover the following issues which will have to be agreed to by NRR and IE in writing prior to initiation of the tests:
4 a.
the specific test sequence and profiles, b.
the design of the test specimen (specifically, how much of the pene-tration face plate will be duplicated),
c.
procurement and fabrication details, and d.
acceptance criteria.
Test procedures will be prepared and se it to the Review Group after the test plan is agreed to.
2.
The status of the LOCA facility upgrade and initial plans were discussed.
The facility will be operational about April 1,1980. The initial plans include the following.
a.
Synergistic testing of pressure transmitters is planned for generic designs in common use today. This testing will be a continuation of the previous synergistic testing conducted in the old facility.
1 s o n s 200 so 7 i
s
a l,
b.
Evaluation of LOCA post-test acceleration methods is planned using typical LOCA profiles.
Current testing is usually for a 30-day period.
It is questionable whether this period is sufficient. Also, if an acceptable way of accelerating the end part of the test (where the pressures and temperatures are low and at saturated conditions) can be found, it would enable LOCA tests to be run on more components.
As discusscd previously, this would help the qualification reviews of operating plants.
c.
Thermal aging sensitivity tests are planned to study the sensitivity of the LOCA test to the current extremes of acceptable thermal aging.
Also, it is important for the reviews of the LOCA qualification for operating plants to detennine the significance of not including aging at all in the LOCA qualification test, d.
Oxygen depletion studies are planned to determine if the qualification tests currently conducted are less severe than a real LOCA where more oxygen is present during the test.
The status of the new materials aging study which has been discussed previously, was given by the Chairman. This addition to the current materials aging effort would consist of a complete review of the data for all non-metal materials currently used in plants as part of safety related eqiupment. The results would be used initially by IE inspectors to screen items for further review by the headquarters staff and ultimately for more detailed review and to identify materials that require further aging study.
FY 1980 supplemental funds of $50K have been requested and work could start as soon as funds are available.
E. Butcher (NRR) indicated that a user's request should be sent to RES shortly.
l t
l y
I l
ATTENDEES P~
Ronald Feit RES b
2 Herb Conrad DSS Jim Stone IE E. Butcher D0R c,
W. R. Rutherford IE r
f 1
A. R. Ungaro PSB t
i.
F 4
I l
n