ML19309D701
| ML19309D701 | |
| Person / Time | |
|---|---|
| Site: | Yankee Rowe |
| Issue date: | 03/24/1980 |
| From: | Ziemann D Office of Nuclear Reactor Regulation |
| To: | Kay J YANKEE ATOMIC ELECTRIC CO. |
| References | |
| NUDOCS 8004110145 | |
| Download: ML19309D701 (3) | |
Text
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March 24, 1980 Docket No. 50-29 Mr. James A. Kay Senior Engineer-Licensing Yankee Atomic Electric Company 25 Research Drive Westborough, Massachusetts 01581
Dear fir. Kay:
As a result of our review of your August 22, 1978 and April 10, 1979 responses concerning cable fire barrier qualification testing we find several deviations from our requirements, which are identified in the enclosed staff position.
To resolve this open fire protection issue it is necessary that you either sub-mit an analysis to justify the deviations or commit to perform additional tests to meet the staff position.
You are requested to respond to the staff position within 30 days from the date of this letter.
Sincerely, s
Dennis L. Zie.
n, Chief Operating Reactors Branch #2 Division of Operating Reactors
Enclosure:
Staff Position cc:
See next page 8 0042101'f 5 F
e Mr. Jaces A. Kay March 24,1980 CC Mr. James E. Tribble, President Yankee Atomic Electric Company 25 Research Drive Westborough, Massachusetts 01581 Greenfield Community College 1 College Drive Greenfield, Massachusetts 01301 Chai rman Board of Selectmen Town of Rowe Rowe, Massachusetts 01367 Energy Faci 11 ties Siting Council 14th Floor One Ashburton Place Boston, Massachusetts 02108 Director, Technical Assessment Division Office of Radiation Programs (AW-459)
U. S. Environmental Protection Agency Crystai Ma11 I2 Arlington, Virginia 20460 U. S. Environmental Protection Agency Region I Office ATTN:
EIS COORDINATOR JFK Federal Building Boston, Massachusetts 02203 I
ENCLOSURE STAFF POSITION FIRE PROTECTION EVALUATION OF CABLE FIRE BARRIER PENETRATION QUALIFICATION YANKEE-ROWE DOCKET NO. 50-29 Our March 15, 1979, fire protection SER noted that cable fire barrier penetrations would be sealed to provide a rat ng of three hours or the rating of the barrier penetrated and that this was acceptable in satisfying the staff's requirements.
By letter dated June 29, 1978, we stated our requirements for the qualification of cable fire barrier penetrations.
Bf letter dated August 22, 1978, you stated that new tests were not necessary becaus' tests had already been performed which demonstrated the adequacy of the cable fiie barrier penetrations.
By letter dated January 25, 1979, we requested the test resalts and bases that existing and new penetrations are adequate to meet the staff requirements.
Your letter of April 10, 1979 gave the test procedures and a statement of the results of the tests. Test reports were not provided, but you indicated that these were available at the Yankee Atomic offices for our review.
Your test procedure used the NELAIA/MAERP Standard Method of Fire Tests. This procedure does not comply with the staff requirements, because:
1.
There is no requirement that the test arrangement be representative of the worst case configuration of " cable loading, cable tray arrange-ment, anchoring, and penetration fire barrier size and design."
2.
There is no requirement that cable sizes be representative of cable sizes in the facility.
3.
There is no requirement to test in both directions if the fire barrier is not symmetrical.
4.
There is no requirement to test with a pressure differential across the penetration seal.
5.
There exists no requirement to monitor the temperature levels of the cable insulation, cable conductor, cable tray, conduit, and fire stop material on the unexposed side. gThe only requirement is that no in-dividual thermocouple exceed 325 F above ambient temperature which may not be conservative.
To resolve this issue it is necessary that you provide an analysis which shows that the above stated deviations from the staff requirements do not significantly affect the test results or perform additional tests which meet the staff requirements.
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