ML19305C290
| ML19305C290 | |
| Person / Time | |
|---|---|
| Issue date: | 03/04/1980 |
| From: | Feit R NRC - RRG# 1-23 ELECT. STAND. & FIRE PROTECTION |
| To: | NRC - RRG# 1-23 ELECT. STAND. & FIRE PROTECTION |
| Shared Package | |
| ML19305C289 | List: |
| References | |
| NUDOCS 8003260482 | |
| Download: ML19305C290 (4) | |
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FIRE PROTECTION REVIEW GROUP MEETING Name: Ronald Feit Date and Place: February 13, 1980; Bethesda, MD
Purpose:
1.
Completion of the IEEE-383 ficme test evaluation, 2.
replication test for Arkansas I, 3.
status of the penetration fire stop testing, and 4.
future work.
Discussion 1.
The contract with Underwriters Laboratories (UL) to evaluate the IEEE-383 cable flame test was discussed. Preliminary data has been published and discussed with the review group. The preliminary data were used as a basis far proposed changes to Regulatory Guide 1.131, " Qualification Testing of Electrical Cables and Field Splices for Light Water Cooled Nuclear Power Plants." Completion of the research program was postponed until public comments were received. Hintze (SD) reviewed the coments that pertain to the flame test and one additional research item was identified.
The current version of the regulatory guide does not control the air flow within the 8x8 foot test cell. Recent results in industry test facilities show variations between facilities that have different ventilation systems. This is particularly significant for buildings of different sizes. Although imposing a flow requirement for the 8x8 test enclosure will complicate the cable flame test, the recent test data show that it is necessary.
Following the meeting, UL was asked to prepare a test plan to conduct a series of test cell flow sensitivity tests with the objective of developing an air flow specification for the IEEE-383 cable flame test.
The test plan will be submitted to the review group when received.
2.
After agreement was reached between NRC Office Directors and a user's request letter was received, work was started on a replication fire test.
The first candidate plant (Rancho Seco) had to be eliminated after preliminary study showed that plant modifications made the test unnecessary.
A corridor in the auxiliary building of Arkansas Unit 1 was chosen as the next candidate. A site visit was made in November 1979 resulting in the designation of specific locations within the corridor that could be replicated for the test. Before proceeding, the utility was requested to identify any functional redundancy in those locations. To date, Sandia has not received the infomation from the utility and cannot proceed without it. Followup action with the utility has been promised by E. Sylvestar INRR) and R. Ferguson (NRR) in a discussion following the meeting.
If the utility cannot identify any functional redundancies or have since eliminated them, NRR will be asked to choose one of the other candidate locations mentioned in the user's request letter.
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The status of the penetration fire stop test program was discussed. Foms have been poured at UL to conduct 30 small-scale tests. The foms are about 3 feet square with a 1 square foot hole in the center and are about 6 inches thick. The choice of cables, cable trays and fire stop materials can still be modified if necessary.
(A test plan was distributed in January 1980). No fabrication work has been done on the proposed full scale test.
t 4.
The long-range plans for the fire protection research program were discussed. The following is a summary of work being considered.
After the current series of fire suppression tests at Sandia a.
Laboratories with Halon, Sandia plans to conduct a similar set of tests with water as an extinguishing agent.
If there is extinguishing tests could also-be conducted a fim requirement, C07 in the same test facility, b.
The data obtained in preparation for and during the Halon fire j
suppression tests will characterize cable tray fires well enough to allow the start of work on an in-place fire and smoke detector test. The method would employ a tracer material and transport method that can be correlated to various design basis fires (such as a cable tray fire). John Boccio (BNL) was requested t'o work with Leo Klamerus (Sandia) to develop a test program outline (pending NRR agreement).
c.
Areas of expansion for the penetration fire stop program were discussed. Specifically, these included:
(1) a survey and evaluation of fire stops in operating plants to identify the generic designs I
and materials, (2) work on -a nondestructive test to try to validate the requiref performance, (3) develop perfomance criteria based on the existing test and analysis programs. This would include the NRC research program and any new test or inspection methods developed, and (4) work on the aging characteristics of currently utilized penetration fire stop materials.
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ATTENDEES Ronald Feit RES Scott Hudson DSS /ASB Al Ungaro PSB/PS/ DSS David Notley ;
SD/EMSB Jim Stone IE/ROI d
John Boccio BNL Loren Hunter APL Al Hintze SD 1
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Addressees for Letter dated MAR y 380 D. Notley, SD G. Harrison, DSS C. Long, DSS D. Mcdonald, NRR V. Thomas, IE E. Sylvester, NRR F. Rosa, DSS R. Satterfield, DSS D. Fischer, DSS W. Rutherford, IE J. Stone, IE F. Shemanski, D0R D. Sullivan, SD T. Dunning, D0R R. Ferguson, D0R P. Matthews, DSS A. S. Hintze, SD A. Ungaro, DSS C. Heit, NRR W. Haass, DPM W. Vesely, RES S. Hanauer, DSS L. Rubenstein, NRR D. Kirkpatrick, IE V. Benaroya, DSS B. Brooks, MIPC W. Paulson, NRR H. Orastein, ED0 H. Wilber, IE S. Ebneter, IE-I W. H. Miller, IE-II NRC PDR (2) File #1-23 /
B. Christian, UL D. Nowlin, AL L. Klamerus, Sandia L. Hunter, APL L. Przybyla, UL F. Krause, Sandia W. A. Von Riesemann, Sandia J. Boccio, BNL e
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