L-84-183, Requests NRC Delete Requirement for Prior Approval on Insulating Matls for New Power Cable Installation.Request Would Allow Util to Purchase Cable in Same Manner Other Class 1E Equipment Procured
| ML17215A496 | |
| Person / Time | |
|---|---|
| Site: | Saint Lucie  |
| Issue date: | 07/24/1984 |
| From: | Williams J FLORIDA POWER & LIGHT CO. |
| To: | Eisenhut D Office of Nuclear Reactor Regulation |
| References | |
| L-84-183, NUDOCS 8407270285 | |
| Download: ML17215A496 (4) | |
Text
REGUI ATORY NFORMATION DISTRIBUTION,S TEM (RIDS)
ACCESSI'ON NBR;8407270?85 DOC ~ DATE! 84'/07/24k NOTARIZED:
NO FACIL:50-335 St ~ Lucie Planti Unit 1, Florida Power 8 Light Co, AUTH~ NAME AUTHOR AFFIL'IATION HILLIAMS~J.N ~
Fl or ida Power 8 Light Co, RECIP ~ NAME RECIPIENT AFFILIATION EISENHUT'iD.G, Division of Licensing
SUBJECT:
Requests NRC delete requirement for prior approval on insulating matls for new power cable-installation. Request would allow util to purchase-cable in same manner other Class IE equipment
- procured, DI'STRIBUTION CODE:
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FLORIDA POWER & LIGHT COMPANY July 24, 1984 L-84-183 Office of Nuclear Reactor Regulation Attention: Mr. Darrell G. Eisenhut, Director Division of Licensing U.ST Nuclear Regulatory Commission Washington, D.C.
20555
Dear Mr. Eisenhut:
Re:
ST.
LUCIE UNIT NO.
1 DOCKET NO. 50-335 UNDERGROUND CABLE Section 8.3.1.1.9 of the St.
Lucie 1 Final Safety Analysis Report (FSAR) =-requires'hat for future modifications any change to the insulating material used on power cables at St.
Lucie 1 receive prior NRC approval.
This" requirement stems from the licensing phase at St.
Lucie 1 when cabling used in a wet-dry environment was under scrutiny by the NRC.
In addition to this commitment, St.
Lucie 1
was given Technical Specifications requiring the periodic testing of cable in the wet-dry environment.
The cable is in the underground Class IE ductbank
- system, which is installed above the normal water table.
The normal cable service is dry, howev'er, water may enter the
- system, for example, during periods of heavy rainfall.
High temperature and radiation are not associated with the underground system.
Accordingly, the only environmental service factor that is a design consideration is the periodic exposure to water.
On June 28,
- 1982, FPL submitted a
license amendment to delete the testing requirement on buried cable via letter L-82-249.
In the Safety Evaluation for that amendment, FPL showed that substantial industry experience had identified no failures of cable used in wet-dry environments.
This same information had been provided earlier to the Advisory Committee on Reactor Safeguards (ACRS)
Subcomm'ittee on AC/DC Power Systems Reliability.
Based on the results of the information provided to the ACRS, the St.
Lucie 1 request to delete the Technical Specification for periodic testing of cable in the wet-dry environment was accepted by NRC.
The purpose of this letter is to request that the NRC delete.the requirement for prior staff approval on insulating materials for new power cable installation.
This would allow FPL to purchase cable in the same manner it procures other Class IE equipment.
8407270285 840724 I,
'I PDR ADOCK 05000335 P
PDR II0I l)U PEOPLE... SERVING PEOPLE
All Class IE cable installed for plant operation wi,11 be qualified for the environmental condition it will experience during normal and/or accident service as applicable.
All cable will be suitable for service in wet or dry locations and will be tested in accordance with appropriate standards such as Insulated Power Cable Engineers Association (IPCEA),
National Electrical Manufacturers Association (NEMA), Association of Edison Illuminating Companies (AEIC) Standards, and purchase order.
specifications (as applicable) to insure their suitability for normal, dry, alternately wet and dry, and submerged conditions of service in tray, conduit and underground installations.
Each new cable insulating material to be used at St.
Lucie will be evaluated to ensure that its documented dry/wet/alternately wet and dry properties are equal to or better than that of materials with many years or proven service.
This evaluation will be documented via a
Plant Change and Modification (PC/M) prior to installation.
Vendor documentation for cable
- material, cable environmental qualification, and test data to appropriate industry standards will be evaluated for acceptability.
FPL is presently receiving bids from manufacturers for cable that will be used to implement NRC required plant modifications (e.g.
Appendix R).
The insulation systems approved for St. Lucie 1 are 10 years old, and are no longer available commercially.
They have been replaced by new insulating systems.
Accordingly, it is requested that NRC approve this request by September, 1984 so that we may purchase the required cable in a manner that will allow completion of Appendix R requirements on schedule.
Should you have any questions or comments regarding this submittal, please contact us.
Very truly y'ours, J.
W. Williams, Jr.
Group Vice President Nuclear Energy JWW/RJS/DCB/mp cc:
J. P. O'Reilly, Region II Harold F. Reis, Esquire