ML020220087

Technical Specification Bases Update to NRC for Period Dated 01/18/2002

ML020220087
Person / Time
Site:	Grand Gulf
Issue date:	01/18/2002
From:	Bottemiller C Entergy Operations
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
GNRO-2002/00010
Download: ML020220087 (6)

Text

P.0. Box 756 January 18,2002 U.S. Nuclear Regulatory Commission Washington, D.C. 20555 Attention:

Document Control Desk

Subject:

Technical Specification Bases Update to the NRC for Period Dated January 18,2002 Grand Gulf Nuclear Station Docket No. 50-416 License No. NPF-29 GNRO-2002/00010 Ladies and Gentlemen:

Pursuant to Grand Gulf Nuclear Station (GGNS) Technical Specification 55.11, Entergy Operations, Inc. hereby submits an update of all changes made to GGNS Technical Specification Bases since the last submittal (GNRO-2001/00081 letter dated October 23, 2001 to the NRC from GGNS). This update is consistent with update frequency listed in 10CFR50.71 (e).

This letter does not contain any commitments.

Should you have any questions, please contact Mike Larson at (601) 437-6685.

Yours truly, Charles A. Bottemiller Manager, Plant Licensing MJUmjl attachment:

cc:

GGNS Technical Specification Bases Revised Pages (See Next Page)

January 18,2002 GNRO-2002/00010 PAGE 2 of 2 Hoeg T. L.

(GGNS Senior Resident)

(w/a)

Levanway D. E.

(Wise Carter)

(w/a)

Reynolds N. S.

(w/a)

Smith L. J.

(Wise Carter)

(w/a)

Thomas H. L.

(w/o)

Mr. E. W. Merschoff (w/2)

Regional Administrator U.S. Nuclear Regulatory Commission Region IV 611 Ryan Plaza Drive, Suite 400 Arlington, TX 76011 U.S. Nuclear Regulatory Commission ATTN: Mr. S. P. Sekerak, NRR/DLPM (w/2)

ATTN: FOR ADDRESSEE ONLY ATTN: U.S. Postal Delivery Address Only Mail Stop 0701 Rockville, MD 205550001 ALL LETTERS ALL LETTERS - U.S. POSTAL SERVICE MAIL DELIVERY ADDRESS ONLY

ATTACHMENT TO GNRO-2002100010 GGNS Gulf Technical Specification Bases Revised Pages Dated

January, 18 2002 I

LDC#

BASES PAGES AFFECTED TOPIC of CHANGE 99083 B 3.8-42, 3.%42a, 3.8-50 Implemented Technical Specification Amendment 149 -

Diesel Generator Lube Oil change.

Diesel Fuel

Oil, Lube

Oil, and Starting Air B 3.8.3 B 3.8 ELECTRICAL POWER SYSTEMS B 3.8.3 Diesel Fuel

Oil, Lube

Oil, and Starting Air BASES BACKGROUND Each diesel generator (DG) is provided with a storage tank having a fuel oil capacity sufficient to operate that DG for a period of 7 days while the DG is supplying its surveillance testing capacity as prescribed by Technical Specifications (5740 KW for Division 1 and 2,

3300 KW for Division 3).

This capacity exceeds the maximum post loss of coolant accident load demand (Ref.

1).

The maximum load demand is calculated using the assumption that at least two DGs are available.

This onsite fuel oil capacity is sufficient to operate the DGs.for longer than the time to replenish the onsite supply from outside sources.

Fuel oil is transferred from each storage tank to its respective day tank by a transfer pump associated with each storage tank.

Redundancy of pumps and piping precludes the failure of one

pump, or the rupture of any

pipe, valve, or tank to result in the loss of more than one DG.

All outside

tanks, pumps, and piping are located underground.

The fuel oil level in the storage tank is indicated in the control room.

For proper operation of the standby

DGs, it is necessary to ensure the proper quality of the fuel oil.

Regulatory Guide 1.137 (Ref.

2) addresses the recommended fuel oil practices as supplemented by ANSI N195 (Ref.

3).

The fuel oil properties governed by these SRs are the water and sediment

content, the kinematic viscosity, specific gravity (or API gravity),

and impurity level.

The DG lubrication system is designed to provide sufficient lubrication to permit proper operation of its associated DG under all loading conditions.

The system is required to circulate the lube oil to the diesel engine working surfaces and to remove excess heat generated by friction during operation.

Each engine oil sump contains an inventory capable of supporting a minimum of 7 days of operation under design basis load and vendor specified consumption rates.

GRAND GULF B 3.8-42 LDC 99083

Diesel Fuel

Oil, Lube

Oil, and Starting Air B 3.8.3 BASES BACKGROUND To ensure sufficient margin to compensate for possible (continued) higher consumption rates than that specified by the vendor additional reserve volume is required for the Division III engines.

This additional volume is maintained in a lube oil storage skid located in the DG Room.

The lube oil storage skid consists of three 55 gallon barrels of

oil, a pump and hose for transfer of the oil to the

sumps, and a catch pan capable of containing the contents of the three 55 gallon barrels of oil (Ref.

7).

This supply is suffi-cient to allow the operator to replenish lube oil from outside sources.

Each DG has an air start system with adequate capacity for five successive start attempts on the DG without recharging the air start receiver(s).

(continued)

GRAND GULF B 3.8-42a LDC 99083

/

Diesel Fuel

Oil, Lube

Oil, and Starting Air 8 3.8.3 BASES REFERENCES

4.

UFSAR, Chapter

6.

(continued)

5.

UFSAR, Chapter

15.

6.

ASTM Standards:

0405 #7-aa; D975-92a ; D2274-70.

7.

GNRI-2001/00127, Amendment 149 to the Operating License.

GRAND GULF B 3.8-50 LDC 99083