ML071100176

Arkansas Nuclear One, Unit No. 1, Technical Specifications, Issuance of Amendment No. 230 Relocation of Inverter Y-28 & Panel C-540 Requirements from Technical Specifications to the Technical Requirements Manual (TAC No. MD2982)

ML071100176
Person / Time
Site:	Arkansas Nuclear
Issue date:	05/15/2007
From:	NRC/NRR/ADRO/DORL/LPLIV
To:
Saba F E, NRR/DORL/LPL4, 301-415-1447
Shared Package
ML071100162	List: ML071100169 ML071100176
References
TAC MD2982
Download: ML071100176 (4)

Text

Inverters

-Operating 3.8.7 3.8 ELECTRICAL POWER SYSTEMS 3.8.7 Inverters

-Operating LOU 3.8.7 The following inverters shall be OPERABLE.a. Two Red Train inverters (Yl 1 and Y1 3, Yl 1 and Y1 5, or Y1 3 and Y1 5), and b. Two Green Train inverters (Y22 and Y24, Y22 and Y25, or Y24 and Y25),----------------------------

NOTE -----------------

One of the four inverters required by LCO 3.8.7.a and LCO 3.8.7.b may be disconnected from its associated DC bus for _ 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> to perform load transfer to or from the swing inverter, provided: a. The associated 120 VAC bus is energized from its alternate AC source;and b. The other three 120 VAC buses are energized from their associated OPERABLE inverters.

APPLICABILITY:

MODES 1, 2, 3, and 4.ACTIONS CONDITION REQUIRED ACTION COMPLETION TIME A. One of the four inverters A.1 ---------NOTE-------

required by LCO 3.8.7.a Enter applicable Conditions and LCO 3.8.7.b and Required Actions of inoperable.

LCO 3.8.9, "Distribution Systems -Operating" with any of the 120 VAC buses RS1, RS2, RS3, or RS4 de-energized.

Restore inverter to 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> OPERABLE status.AND 96 hours0.00111 days <br />0.0267 hours <br />1.587302e-4 weeks <br />3.6528e-5 months <br /> from discovery of failure to meet LCO ANO-1 3.8.7-1 Amendment No. 2-1-5, 230 Inverters

-Operating 3.8.7 CONDITION REQUIRED ACTION COMPLETION TIME B. Required Action and B.1 Be in MODE 3. 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> associated Completion Time not met. AND OR B.2 Be in MODE 5. 36 hours4.166667e-4 days <br />0.01 hours <br />5.952381e-5 weeks <br />1.3698e-5 months <br /> Two or more of the four inverters required by LCO 3.8.7.a and LCO 3.8.7.b inoperable.

SURVEILLANCE REQUIREMENTS SURVEILLANCE FREQUENCY SR 3.8.7.1 Verify correct inverter voltage, frequency, and 7 days alignment to associated 120 VAC buses RS1, RS2, RS3, and RS4.ANO-1 3.8.7-2 Amendment No. 2-1-5, 230 Distribution Systems -Operating 3.8.9 3.8 ELECTRICAL POWER SYSTEMS 3.8.9 Distribution Systems -Operating LCO 3.8.9 APPLICABILITY:

T .... AC, Dn , and !20 VAC "e power ditibto ,.ub..st,,m.

.. ..hall.. , be OPERABLE.MODES 1, 2, 3, and 4.ACTIONS CONDITION REQUIRED ACTION COMPLETION TIME A. One or more AC electrical A.1 Restore AC electrical power 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> power distribution distribution subsystem(s) to subsystem(s) inoperable.

OPERABLE status. AND 16 hours1.851852e-4 days <br />0.00444 hours <br />2.645503e-5 weeks <br />6.088e-6 months <br /> from discovery of failure to meet LCO B. One or more 120 VAC B.1 Restore 120 VAC electrical 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> electrical power power distribution distribution subsystem(s) subsystem(s) to AND (RS1, RS2, RS3, RS4) OPERABLE status.inoperable.

16 hours1.851852e-4 days <br />0.00444 hours <br />2.645503e-5 weeks <br />6.088e-6 months <br /> from discovery of failure to meet LCO C. One or more DC electrical C.1 Restore DC electrical 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> power distribution power distribution subsystem(s) inoperable, subsystem(s) to AND OPERABLE status.16 hours1.851852e-4 days <br />0.00444 hours <br />2.645503e-5 weeks <br />6.088e-6 months <br /> from discovery of failure to meet LCO D. Required Action and D.1 Be in MODE 3. 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> associated Completion Time not met.D.2 Be in MODE 5. 36 hours4.166667e-4 days <br />0.01 hours <br />5.952381e-5 weeks <br />1.3698e-5 months <br /> ANO-1 3.8.9-1 Amendment No. 245,248, 230 Distribution Systems -Operating 3.8.9 CONDITION REQUIRED ACTION COMPLETION TIME E. Two or more electrical E.1I Entr LCO 3.0.3. immediately power distribution subsystems inoperable that result in a loss of function.SURVEILLANCE REQUIREMENTS SURVEILLANCE FREQUENCY SR 3.8.9.1 Verify correct breaker alignments to required AC, DC, 7 days and 120 VAC bus electrical power distribution subsystems.

ANO-1 3.8.9-2 Amendment No. 245,248, 230