ML19263B932
| ML19263B932 | |
| Person / Time | |
|---|---|
| Site: | Sequoyah  |
| Issue date: | 01/17/1979 |
| From: | TENNESSEE VALLEY AUTHORITY |
| To: | |
| Shared Package | |
| ML19263B931 | List: |
| References | |
| SWP-78-S-2, NUDOCS 7901250154 | |
| Download: ML19263B932 (1) | |
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ENCLOSURE SEQUOYAll NUCLEAR PLANT ADDITIONAL FIRE DAMPERS AND FIRE DOORS IN CONTROL AND AUXILIARY Bull. DINGS NCR SWP-78-S-2 FIRST INTERIM REPORT
_Dese_r_1p t ion o f Cond i t ion During a design review, it was discovered that compartmentation of the Control Building and the Auxiliary Building did not meet Fire Protection Design Criteria. The fire dampers and fire doors furnished on design drawings were in accordance with Secticn 3.0 - Recommended Approach for Implementing Supplemental Fire Protection De* sign Criteria, and Supplemental Fire Protection Recommendations, Revision 1, dated January 18, 1977, but were not fully in accordance with Section 2.0 - Supplemental Fire Protection Design Criteria.
This was caused by a difference in interpretation of Sections 2 and 3 between those who implemented the criteria and those who authored it.
Subsection 3.7.4.2 - Compartmentation of Section 3.0 also stated Compartmentation for these elevations is adequate," when, in fact, additional dampers and doors should have been required.
Eight additional fire dampers in llVAC ductwork and eight additional f f re doors are required in the Control and Auxiliary Buildings.
Sa f e ty_ Imp l ica t ion s in the event of a fire in the Control or Auxilla! y Building, safety-related systems could be adversely affected if this condition had remained uncorrected.
Sp r ry_c_t ive Action The subject fire dampers and ftre doors are to be added on a schedule to be determined later in response to NRR Fire Protectior.
question 3 transmitted to N.
B.
Ilughes from S.
A.
Varga by a letter dated September 1, 19/8. Additional corrective actions will be outlined in a future report on this deficiency.
e 7 9012 5 016Y