ML18086A957

Proposed Revision to Tech Specs 3.6.1.7 & 4.6.1.7,removing 90-h Annual Limit for Use of pressure-vacuum Relief Portion of Containment Ventilation Sys

ML18086A957
Person / Time
Site:	Salem
Issue date:	09/23/1981
From:	Public Service Enterprise Group
To:
Shared Package
ML18086A955	List: ML18086A954 ML18086A956 ML18086A957
References
NUDOCS 8110060219
Download: ML18086A957 (4)

Text

..' Ref: LCR 81-18 PROPOSED CHANGE TO TECHNICAL SPECIFICATIONS SALEM GENERATING STATION UNIT NO. 2 Description of Change Modify the note*at the bottom of the page pertaining to Spec-ification 3.6.1.7, CONTAINMENT VENTILATION SYSTEM, to read as follows:

"* The containment pressure-vacuum relief isolation valves may be opened on an intermittent basis, under administra-tive control, as necessary to satisfy the requirement of Specification 3.6.1.4."

Reason for Change The need to periodically reduce containment internal pressure to satisfy the requirement of Tech. Spec. 3.6.1.4 exists due to var-ious sources of pressure build-up in the containment such as Control Air System regulators and valve positioners' design bleed-off, plant heatup, and climate changes. The pressure bounds of Tech. Spec. 3.6.1.4. are necessary for safety purposes to ensure that containment pressure is within analyzed values in accident studies.

Safety Evaluation No Unreviewed Safety Question is involved with this change since this issue has been addressed by USNRC Safety Evaluation Report, Supplement 3, Section 15.4 for Salem Generating Station. Isolation of the Containment Pressure and Vacuum Relief System takes place in 5 seconds or less on High Containment Pressure (about 4.0 psig) in the event of a LOCA while containment venting is in progress.

For all isolation initiating signals, (Containment High Pressure, Safety Injection, and High Containment Radiation) the radiological consequences of the LOCA with containment venting in progress will be within the guide-line values of 10CFR Part 100.

( 8110060219 810923 \

, PDR ADOCK 05000311 P PDR'

• l CONTAINMENT SYSTEMS

(

• CONTAINMENT VENTILATION SYSTEM LIMITING CONDITION FOR OPERATION 3.6. 1.7 The containment purge supply and exhaust isolation valves* shall be*

closed.

APPLICABILITY: MODES 1, 2, 3, and 4.

ACTION:

With one containment purge supply and/or exhaust isolation valve open, close the open valve(s) within one hour or be in at least HOT STANDBY within the next 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> and in COLD SHUTDOWN within the following 30 hours3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br />.

SURVEILLANCE REQUIREMENTS

,<JJ 4.6. 1.7 The containment purge supply and exhaust isolation valves shall be determined closed at least onctr 31 d~

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• The containment pressure-vacuum relief isolction valves may be opened on an intermittent basis under administrative con~rol.E1£h'l:.te~exGeea"1!<90~houn~

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SALEM - UNIT 2 3/4 6-S

Ref: LCR 81-18

.. ' > t CONTAINMENT SYSTEMS CONTAINMENT VENTILATION SYSTEM LIMITING CONDITION FOR OPERATION 3.6. 1.7 The containment purge supply and exhaust isolation valves* shall be closed.

APPLICABILITY: MODES 1, 2, 3, and 4.

ACTION:

With one containment purge supply and/or exhaust isolation valve open, close the open valve(s) within one hour or be in at least HOT STANDBY within the next 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> and in COLD SHUTDOWN within the following 30 hours3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br />.

SURVEILLANCE REQUIREMENTS 4.6. 1.7 The containment purge supply and exhaust isolation valves shall be determined closed at least once per 31 days.

• The containment pressure-vacuum relief isolation valves may be opened on an intermittent basis, under administrative control, .as necessary to satisfy the requirement of Specification 3.6.1.4.

J SALEM - UNIT 2 3/4 6-9

CONTAINMENT SYSTEMS INTERNAL PRESSURE LIMITING CONDITION FOR OPERATION

~.6. 1.4 Primary containment internal pressure shall be maintained between

-1.5 and +0.3 psig.

APPLICABILITY: MODES 1, 2, 3 and 4.

ACTION:

With the containment internal pressure outside of the limits above, restore the internal pressure to within the limits within l hour or be in at least HOT STANDBY within the next 6 houts and in COLD SHUTDOWN within the following 30 hours3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br />.

SURVEILLANCE REQUIREMENTS 4.6. 1.4 *The primary containment internal pressure shall be determined to be within the limits at least once per 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br />.

SALEM - UNIT 2 3/4 6-6