ML021550120

Technical Specifications to Amendments 223 and 248 Technical Specification Surveillance Frequency and Action Requirement for Suppression Chamber-to-Drywell Vacuum Breakers

ML021550120
Person / Time
Site:	Brunswick
Issue date:	06/03/2002
From:	NRC/NRR/DLPM
To:
References
TAC MB2110, TAC MB2111
Download: ML021550120 (4)

Text

Suppression Chamber-to-Drywell Vacuum Breakers 3.6.1.6 3.6 CONTAINMENT SYSTEMS 3.6.1.6 Suppression Chamber-to-Drywell Vacuum Breakers LCO 3.6.1.6 Eight suppression chamber-to-drywell vacuum breakers shall be OPERABLE for opening.

AND Ten suppression chamber-to-drywell vacuum breakers shall be closed, except when performing their intended function.

APPLICABILITY: MODES 1, 2, and 3.

ACTIONS CONDITION REQUIRED ACTION COMPLETION TIME A. One required A.1 Restore one vacuum 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> suppression chamber- breaker to OPERABLE to-drywell vacuum status.

breaker inoperable for opening.

B. One suppression B.1 Close the open vacuum 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br /> chamber-to-drywell breaker.

vacuum breaker not closed.

C. Required Action and C.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 C.2 Be in MODE 4. 36 hours4.166667e-4 days <br />0.01 hours <br />5.952381e-5 weeks <br />1.3698e-5 months <br /> Brunswick Unit 1 3.6-18 Amendment No.223

Suppression Chamber-to-Drywell Vacuum Breakers 3.6.1.6 cZIIDJITE i AMCF PFf1IIIPFMFNTS 4.J11111S* I **m.-9 . -_____________________

SURVEILLANCE FREQUENCY SR 3.6.1.6.1 NOTE ----- -------------------.

Not required to be met for vacuum breakers that are open during Surveillances.

Verify each vacuum breaker is closed. 14 days AND Within 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> after any discharge of steam to the suppression chamber from any source 3.6.1.6.2 Perform a functional test of each 31 days required vacuum breaker. AND Within 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> after any discharge of steam to the suppression chamber from any source SR 3.6.1.6.3 Verify the full open setpoint of each 24 months required vacuum breaker is

• 0.5 psid.

3.6-19 Amendment No.223 Brunswick Unit 1

Suppression Chamber-to-Drywell Vacuum Breakers 3.6.1.6 3.6 CONTAINMENT SYSTEMS 3.6.1.6 Suppression Chamber-to-Drywell Vacuum Breakers

[CO 3.6.1.6 Eight suppression chamber-to-drywell vacuum breakers shall be OPERABLE for opening.

AND Ten suppression chamber-to-drywell vacuum breakers shall be closed, except when performing their intended function.

APPLICABILITY: MODES 1, 2, and 3.

ACTIONS CONDITION REQUIRED ACTION COMPLETION TIME A. One required A.1 Restore one vacuum 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> suppression chamber- breaker to OPERABLE to-drywell vacuum status.

breaker inoperable for opening.

B. One suppression B.1 Close the open vacuum 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br /> I chamber-to-drywell breaker.

vacuum breaker not closed.

C. Required Action and C.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 C.2 Be in MODE 4. 36 hours4.166667e-4 days <br />0.01 hours <br />5.952381e-5 weeks <br />1.3698e-5 months <br /> Brunswick Unit 2 3.6-18 Amendment No.248

Suppression Chamber-to-Drywell Vacuum Breakers 3.6.1.6 SURVEILLANCE REQUIREMENTS SURVEILLANCE FREQUENCY i

SR 3.6.1.6.1 -------------

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

Not required to be met for vacuum breakers that are open during Surveillances.

Verify each vacuum breaker is closed. 14 days AND Within 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> after any discharge of steam to the suppression chamber from any source

.4-SR 3.6.1.6.2 Perform a functional test of each 31 days required vacuum breaker.

AND Within 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> after any discharge of steam to the suppression chamber from any source SR 3.6.1.6.3 Verify the full open setpoint of each 24 months required vacuum breaker is

• 0.5 psid.

Brunswick Unit 2 3.6-19 Amendment No. 248