L-83-261, Forwards Suppl 1 to 830412 Request for Exemption from Section III-0 of App R Requirements Re Reactor Coolant Pumps in Fire Protection Sys

Forwards Suppl 1 to 830412 Request for Exemption from Section III-0 of App R Requirements Re Reactor Coolant Pumps in Fire Protection Sys

ML17213B305
Person / Time
Site:	Saint Lucie
Issue date:	04/25/1983
From:	Robert E. Uhrig FLORIDA POWER & LIGHT CO.
To:	Eisenhut D Office of Nuclear Reactor Regulation
References
L-83-261, NUDOCS 8304280063
Download: ML17213B305 (7)

Text

SUBJECT:

Forwards Supp) 1 to 830gl2 request for exemption from Section III 0 of App R requirements re reactor coolant pumps in fire protection sys DISTRIBUTION CODE:

A006S COPIES RECEIVED:LTR ENCL,I,r TITLE:

OR Submittal: Fire, Protection SIZE:

NOTES:

REGULAT Y INFORMATION DISTRIBUTIO YSTEM (RIDS)

ACCESSION NBR:8304280063 DOC ~ DATE: 83/04/25 NOTARIZED'O FACIL;50-335 St. Lucie'Plant~

Uni;t 1i Florida Power 8 Light Co.

AUTH,NAME AUTHOR AF F II IATION UHRIGi8 ~ Ee Florida Power 8 Light Co, REC IP e NAME RECIPIENT AFFILIATION EISENHUT~D,G, Division of Licensing DOCKET 05000335 RECIPIENT If) CODE/NAME NRA ORB3 BC Ol INTERNAL~

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P. O. BOX 14000, JUNO BEACH, FL 33408 FLORIDA POWER & LIGHT COMPANY April 25, 1983 L-83-261 Office of Nuclear Reactor Regulations

~

Attention:

Mr. Darrell G. Eisenhut, Director Division of Licensing U ~

S. Nuclear Regulatory Commission Washington, D.C.

20555

Dear Mr. Eisenhut:

Re:

ST.

LUCIE UNIT 1 DOCKET NO. 50"335 APPENDIX R, 'FIRE PROTECTION In a letter dated April 12, 1983 (L"83-227), Florida Power

& Light Co.

(FPL) submitted a fire protection submittal for St.

Lucie Unit No. l.

Please find attached, Supplement 1 to this submittal which requests an exemption from Section III-0 of Appendix R.

Should you have any questions concerning this submittal, pjease do not hesitate to contact us.

E. Uhrig Vice President Advanced Systems an'd Technology REU/PPC/rms Attachment cc:

J.P. O'Reilly, Region II Harold F. Reis, Esquire f

8304280063 830425 PDR ADOCR 05000336 P

PDR~j PEOP.LE... SERVING PEOPLE

a

~

ATTACHMENT EXEMPTION K2 An exemption is requested from Section III-0 of Appendix R

because the Oil Collection System is not capable of collecting lube oil from all four of the reactor coolant pump lube oil systems.

EVALUATION K2 1.

Per design specifications, components'nsi'de containment have a 'max'imum allowable surface temperature during normal operation of 150 F, thus reducing the probability of starting a fire ~

Oil used:

Flash Point - 450 F

Fire Point - 480'F Ignition Point - 530'F 2.

The RCP oil collection system is required to be Seismic Category II per R.G.'.29, paragraph C.2.

'3.

A design basis accident and a fire are not postulated to occur simultaneously.

4.

Under normal operating conditions, it would be impractical to assume that all RCP oil systems would fail at once.

Therefore, a tank to contain all RCP oil is not necessary.

5.

Each RCP oil system has an alarm whi,ch. will sound in the:control room. if approximately 15 gallons of oil., is. lost from the oil system.

This alarm requi:res operato'r action.

6.

NRC response, March 21, 1979; SER, required the following:

Reactor Coolant Pum s

We have requested that an oil collection system be provided for each of the reactor coolant pumps.

The licensee has deferred action on this recommendation pending the final resolution of an EPRI

study, "Evaluation and Test of Improved Fire Resistant Fluid Lubricants for Water Reactor Coolant Pump Motors."

If a

suitable lubricant is not

found, the licensee will provide a

system to suppress potential fires or provide for the removal of potential oil leakage to a

safe location by December 1980.

No additional information is required from the licensee (5.10).

This requires only for the removal of ~otential oil leakage and only to a safe location.

7.

The RCP oil collection tank is capable of holding 225 gallons which exceeds the total capacity of one pump (190 gal.)

plus reasonable leakage from the remaining pumps.

Conclusion K2 Based on our evaluation, the existing RCP oil collection system provides adequate capability for collecting lube oil from all potential pressurized and unpressurized leakage sites in the reactor coolant pump lube oil systems.

Additional modifications would not augment or materially enhance the safety of the plant since it would not aid in the prevention of fire damage to redundant components essential for safe shutdown.

Therefore, we conclude; this is an acceptable exemption to Appendix R to 10 CFR 50, Section III.O.