ML072190507

Tech Spec Pages for Amendment 176 Change to Technical Specifications to Allow Certain Types of Relief Valves to Be Used as Isolation Devices

ML072190507
Person / Time
Site:	Grand Gulf
Issue date:	08/24/2007
From:	NRC/NRR/ADRO/DORL/LPLIV
To:
Vaidya B, NRR/DORL/LP4, 415-3308
Shared Package
ML072140508	List: ML072140501 ML072190507
References
TAC MD4676
Download: ML072190507 (3)

Text

PCI V s 3.6.1.3 ACTIONS (continued)

CONDITION REQUIRED ACTION COMPLETION TIME A. (continued) Prior to entering MODE 2 or 3 from MODE 4, if not performed within the previous 92 days, for isolation devices inside primary containment, drywell, or steam tunnel B. One or more -------------

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

penetration flow paths Relief valves are not with two PCIVs required to be de-activated inoperable except due provided the relief setpoint to leakage not within is at least 23 psig and one limit. of the following criteria is met:

1. the relief valve is one-inch nominal, size or less, or

2. the flow path is into a closed system whose piping pressure rating exceeds the containment design pressure rating.

B. 1 Isolate the affected 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> penetration flow path by use of at least one closed and de-activated automatic valve, closed manual valve, or blind flange.

(continued)

GRAND GULF 3.6-11 Amendment No. 4-2-9, 176

PCIVs 3.6.1.3 ACTIONS (continued)

CONDITION REQUIRED ACTION COMPLETION TIME C. One or more C.1 Restore leakage rate 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br /> penetration flow paths to within limit.

with leakage rate not within limit except for purge valve leakage.

(continued)

GRAND GULF 3.6 - 11a Amendment No. 76

PCIVs 3.6.1.3 ACTION (continued)

CONDITION REQUIRED ACTION [COMPLETION TIME A. One or more -NOTE penetration flow paths Relief valves are not with one PCIV required to be de-activated inoperable except due provided the relief setpoint to leakage not within is at least 23 psig and one limit. of the following criteria is met:

1. the relief valve is one-inch nominal size or less, or

2. the flow path is into a closed system whose piping pressure rating exceeds the containment design pressure rating.

A.1 Isolate the affected 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br /> except penetration flow path for main steam by use of at least line one closed and de-activated AND automatic valve, closed manual valve, 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> for blind flange, or main steam line check valve with flow through the valve secured.

AND A.2 NOTE-------- Once --------

per Isolation devices in 31 days for high radiation areas isolation may be verified by devices outside use of administrative primary means. containment, drywell, and steam tunnel Verify the affected penetration flow path AND is isolated.

(continued)

GRAND GULF 3.6-10 Amendment No. 4,2-9, t76