ML19241B731
| ML19241B731 | |
| Person / Time | |
|---|---|
| Site: | Zion File:ZionSolutions icon.png |
| Issue date: | 05/29/1979 |
| From: | Kohler J NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| To: | |
| Shared Package | |
| ML19241B710 | List: |
| References | |
| NUDOCS 7907230364 | |
| Download: ML19241B731 (2) | |
Text
-
s e
UNITED STATES OF AMERICA NUCLEAR REGULATORY CCMMISSION BEFCRE THE ATOMIC SAFETY AND LICENSING BOARD In the Matter of
)
)
COMMCNWEALTH EDISON CCMPANY
)
Docket Nos. 50-295
)
50-304 (Zion Station, Units I and 2)
)
NRC STAFF TESTDt0NY ON BOARD CUESTICN (4)(e) by Joel E. Kchler The Licensing Board has requested the parties' response to certain questions in their Order Following Prehearing Conference, dated January 19, 1979.
Board Question (4)(e) is as follows:
What provisons have been made or procedures developed to protect the workmen and/or plant personnel from the con-scquences of such postulated accidents during the period when the proposed spent fuel pool modifications are being perfor ed?
Answer The Apolicant has determined that emergency operating procedure-6 (EOP-6) titled Fuel Hancling Energency" which the licensee empicys during all fuel handling is acclicable curing fuel ; col modificati cs.
This crecedure describes the cesigned autenatic events which take place curing a fuel handling emergency.
In adcition, it provides guidance to cersonnel for emergency evacuaticn of affected area and directs control racm Operatcrs to verify that requirements of ECP-6 are inplemented. As such, the Applicant has determined tnere is no need for additicnal specific prccedures to be developed tc protect worxmen frca postulated accidents
~
during the pericd of time when fuel pool modifications are being ;:erformed.
rn l
P ' ' 'I U
1:
7 907230 S6 A'Z
w With regard to the capability of the equipment being used, the applicant intends to provide a 125 ton hook. The ncainal weight of one rack is 15-20 tons. The hook will be load tested to 110% of design and a magnetic particle inspection will be performed. There are two main cables which will be used in conjunction with the building crane. The cables will be subjected to the same 110% load test as the hook. The motors that will be used have emergency braking features which activate on loss of power. The rate of speed that centrols the crane's upward and downward movement is governed by a motor controller and various passive gear ratios which limit travel speed. There will be no fuel movement during rack movement and the new fuel rack to be installed will not pass over any areas of the pool presently containing spent fuel.
The Region III inspectica effort regarding the Spent Fuel Pool modification will verify that the equipment employed will be as described and the emergency operating prccedures rega. ding fuel handling are imolemented.
It is RIII's positicn that adherence to the ECP-6 and acceptable surveillance testing of the crane lifting equi;mant should provice assurance that the fuel rack modificaticn to the Zicn Scent Fuel ?cci can be installed witnout additional crecedures being develc;ed.
/ { 'I
- [;b
.