ML20215C907

Proposed Tech Spec Re Chlorine Detection,Sulfur Dioxide Detection & Control Room Emergency Ventilation Sys

ML20215C907
Person / Time
Site:	Trojan File:Portland General Electric icon.png
Issue date:	09/30/1986
From:	PORTLAND GENERAL ELECTRIC CO.
To:
Shared Package
ML20215C726	List: ML20215C723 ML20215C888 ML20215C907
References
TAC-63157, NUDOCS 8610100520
Download: ML20215C907 (7)

Text

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LCA 142

. Attachment 1 Page 1 of 7 INDEX LIMITING CONDITIONS FOR OPERATION AND SURVEILLANCE REQUIREMENTS SECTION PAGE 3/4.2 POWER DISTRIBUTION LIMITS 3/4.2.1 Axial Flux Difference . . . . . . . . . . . . . . . . . . 3/42-1 3/4.2.2 Heat Flux Hot Channel Factor. . . . . . . . . . . . . . . 3/4 2-5 3/4.2.3 RCS Flowrate and FR................... 3/4 2-8 3/4.2.4 Quadrant Power Tilt Ratio . . . . . . . . . . . . . . . . 3/4 2-10 3/4.2.5 DNB Parameters . . . . ................. 3/4 2-12 3/4.3 INSTRUMENTATION 3/4.3.1 REACTOR TRIP SYSTEM INSTRUMENTATION . . . . . . . . . . . 3/43-1 3/4.3.2 ENGINEERED SAFETY FEATURE ACTUATION SYSTEM INSTRUMENTATION . . . . ................ 3/4 3-14 3/4.3.3 MONITORING INSTRUMENTATION Radiation Monitoring Instrumentation. . . . . . . . . . . 3/4 3-33 Movable Incore Detectors. . . . . . . . . . . . . . . . . 3/4 3-37 Seismic Instrumentation . . . . . . . . . . . . . . . . . 3/4 3-38 Meteorological Instrumentation. . . . . . . . . . . . . . 3/4 3-41

Remote Shutdown Instrumentation . . . . . . . . . . . . . 3/4 3-44 Chlorine Detection Systems. . . . . . . . . . . . . . . . 3/4 3-47 Fire Detection Instrumentation. . . . . . . . . . . . . . 3/4 3-48 Decouple Switches . . . . . . . . . . . . . . . . . . . . 3/4 3-50 Accident Monitoring Instrumentation . . . . . . . . . . . 3/4 3-51 Radioactive Liquid Effluent Instrumentation . . . . . . . 3/4 3-54 Radioactive Gaseous and Process Effluent Monitoring Instrumentation. . . . . . . . . . . . . . . 3/4 3-59 3/4.4 REACTOR COOLANT SYSTEM 3/4.4.1 REACTOR COOLANT LOOPS . . . . . . . . . . . . . . . . . . 3/44-1 TROJAN-UNIT 1 IV Amendment No. #8, 58, 78, 99, 105 April 4, 1985 Ol g y hj 4 P

1 LCA 142 Attachnent 1 Page 2 of 7 INSTRUMENTATION CHLORINE DETECTION SYSTEMS LIMITING CONDITION FOR OPERATION 3.3.3.6 Two independent chlorine detection systems, with their alarm / trip setpoints adjusted to actuate at a chlorine concentration of 5 5 ppm, shall be OPERABLE. l APPLICABILITY: ALL MODES ACTION:

a. With one chlorine detection system inoperable, restore the inoperable detection system to OPERABLE status within 7 days or within the next 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> initiate and maintain operation of the control room emergency ventilation system in the recircula-tion mode of operation.

b. With both chlorine detection systems inoperable, within 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> initiate and maintain operation of the control room emergency ventilation system in the recirculation mode of operation.

c. The provisions of Specification 3.0.4 are not applicable.

SURVEILLANCE REQUIREMENTS 4.3.3.6 Each chlorine detection system shall be verified energized at l least once per 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> and demonstrated OPERABLE by perfornance of a l CHANNEL CALIBRATION at least once per 18 months.

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TROJAN-UNIT 1 3/4 3-47 Amendment No. 93 September 5, 1984

LCA 142 Attachment 1 Page 3 of 7 PLANT SYSTEMS l l

3/4.7.6 CONTROL ROOM EMERGENCY VENTILATION SYSTEM LIMITING CONDITION FOR OPERATION 3.7.6.1 Two independent control room emergency ventilation systems shall be OPERABLE.

A_PPLICABILITY: ALL MODES ACTION:

MODES 1, 2, 3 and 4:

With one control room emergency ventilation system inoperable, restore the inoperable system to OPERABLE status within 7 days 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 />.

MODES 5 and 6:

r a. With one control room emergency ventilation system inoperable, restore the inoperable system to OPERABLE status within 7 days l

or initiate and maintain operation of the remaining OPERABLE f control room emergency ventilation system in the recirculation

mode.

b. With both control room emergency ventilation systems inoperable, suspend all operations involving CORE ALTERATIONS or positive reactivity changes.

SURVEILLANCE REQUIREMENTS 4.7.6.1 Each control room emergency ventilation system shall be demon-strated OPERABLE:

a. At least once per 31 days on a STAGGERED TEST BASIS by initiating flow through the HEPA filter and charcoal adsorber train and verifying that the train operates for at least 15 minutes. l

b. At least once per 12 months on a STAGGERED TEST BASIS, or after work on the system which could affect its cooling capabilities, by initiating flow through the HEPA filter and charcoal adsorber train and verifying that the train operates for at least 10 hours1.157407e-4 days <br />0.00278 hours <br />1.653439e-5 weeks <br />3.805e-6 months <br /> and maintains the control room air temperature $ 110*F.

TROJAN-UNIT 1 3/4 7-18 Amendment No. 77, 36 February 12, 1979  ;

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LCA 142

. Attachment 1 Page 4 of 7 PLANT SYSTEMS SURVEILLANCE REQUIREMENTS-(Continued)

b. At least once per 18 months or (1) after any structural maintenance on the HEPA filter or charcoal adsorber housings, or (2) following painting, fire or chemical release in any ventilation zone communicating with the system by: '

l. Verifying that the charcoal adsorbers remove 2 99.95% of a l halogenated hydrocarbon refrigerant test gas when they are tested in-place in accordance with ANSI N510-1975 while operating the ventilation system at a flow rate of 3000 cfm i 10%. l

2. Verifying that the HEPA filter banks remove 2 99.95% of the [

DOP when they are tested in place in accordance with ANSI N510-1975 while operating the ventilation system at a flow rate 3000 cfm 10%. l

3. Verifying within 31 days after removal that a laboratory analysis of a representative carbon sample obtained in accordance with Regulatory Position C.6.b of Regulatory i Guide 1.52, Revision 2, March 1978, meets the laboratory testing criteria of Regulatory Position C.6.a of Regulatory Guide 1.52, Revision 2, March 1978.

4. Verifying a system flow rate of 3000 cfm i 10% during l system operation when tested in accordance with ANSI N510-197,5.

c. After every 720 hours0.00833 days <br />0.2 hours <br />0.00119 weeks <br />2.7396e-4 months <br /> of charcoal adsorber operation by veri-fying within 31 days after removal that a laboratory analysis of a representative carbon sample obtained in accordance with Regulatory Position C.6.b of Regulatory Guide 1.52, Revision 2, March 1978, meets the laboratory testing criteria of Regulatory

! Position C.6.a of Regulatory Guide 1.52, Revision 2, March 1978.

d. At least once per 18 months by:

1. Verifying that the pressure drop across the combined HEPA filters and charcoal adsorber banks is < 6 inches Water Gauge while operating the ventilation system at a flow rate of 3000 cfm i 10%. l l

TROJAN-UNIT 1 3/4 7-19 Amendment No.19 February 27, 1978

i LCA 142 Attachment 1 Page 5 of 7 PLANT SYSTEMS SURVEILLANCE REQUIREMENTS (Continued)

2. Verifying that on a Safety Injection, High Radiation, or High Chlorine signal, the system automatically isolates the control room within 3 seconds and that on a Safety Injection signal, the system automatically starts and diverts its inlet and recirculation flow through the HEPA filters and charcoal adsorber banks.

3. Verifying that the system maintains the control room: (1) at al positive pressure of 21/8 in. W. G. relative to the outside atmosphere during system operation, and (2) at a measurable positive pressure relative to other adjacent spaces during system operation.

e. After each complete or partial replacement of HEPA filter banks by verifying that the HEPA filter banks remove 2 99.95% of the DOP l when they are tested in-place in accordance with ANSI N510-1975 while operating the filter train at a flow rate of 3000 i 10%. l

f. After each complete or partial replacement of a charcoal adsorber bank by verifying that the charcoal adsorb'ers remove 2 99.95% of a l halogenated hydrocarbon refrigerant test gas when they are tested in-place in accordance with ANSI N510-1975 while operating the filter train at a flow rate of 3000 cfm 10%. l TROJAN-UNIT 1 3/4 7-20 Amendment No. 79,105 l April 4, 1985

f LCA 142

. Attachment 1 Page 6 of 7 INSTRUMENTATION BASES 3/4.3.3.10 RADI0 ACTIVE LIQUID EFFLUENT INSTRUMENTATION The radioactive liquid effluent instrumentation is provided to monitor and control, as applicable, the releases of radioactive materials in liquid ef fluents during actual or potential releases. The alarm / trip setpoints for these instruments shall be calculated in accordance with the ODCM to ensure that the alarm / trip will occur prior to exceeding the limits of 10 CFR Part 20.

The OPERABILITY and use of this instrumentation is consistent with the require-ments of General Design Criteria 60, 63, and 64 of Appendix A to 10 CFR Part 50.

3/4.3.3.11 RADI0 ACTIVE GASEOUS PROCESS AND EFFLUENT INSTRUMENTATION The radioactive gaseous process and effluent instrumentation is provided to (1) monitor and control, as applicable, the releases of radioactive materials in gaseous effluents during actual or potential releases, (2) pro-vide automatic isolation of WGDT discharges prior to exceeding the limits of 10 CFR Part 20, (3) to provide automatic isolation of Containment ventilation at two times containment background readings in Modes 1, 2, 3, 4 and 6; however, in no case will the limits of 10 CFR Part 20 be exceeded, (4) to provide Containment activity levels for RCS leakage detection, (5) to monitor l potentially explosive mixtures in the Gaseous Radwaste System, and (6) to monitor post-accident release levels. The alarm / trip setpoints for these instruments shall be calculated in accordance with the ODCM. The OPERABILITY and use of this instrumentation is consistent with the requirements of General Design Criteria 60 and 64 of Appendix A to 10 CFR Part 50.

The process and ef fluent radiological monitors for the Containment, Auxiliary Building and condenser air ejector effluents are equipped with an extended range designed to function during accident conditions. Additionally, noble gas activity monitors have been installed on the main steam lines to monitor potential releases of activity through the main steam relief valves.

These monitoring capabilities are consistent with the requirements in NUREG-0737, " Clarification of TMI Action Flan Requirements".

TROJAN-UNIT 1 B 3/4 3-4 Amendment No. 99, 105 H[ April 4, 1985 i

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LCA 142

.- Attachment 1 Page 7 of 7 PLANT SYSTEMS BASES 3/4.7.6 CONTROL ROOM VENTILATION SYSTEM The OPERABILITY of the control room ventilation system ensures that

1) the ambient air temperature does not exceed the allowable temperature for continuous duty rating for the equipment and instrumentation cooled by this system and 2) the control room will remain habitable for operations personnel during and following all credible accident conditions. The OPERABILITY of this system-in conjunction with control room design pro-visions is based on limiting the radiation exposure to personnel occupying the control room to 5 rem or less whole body, or its equivalent.

This limitation is consistent with the requirements of General Design Criteria 19 of Appendix "A",10 CFR 50. The OPERABILITY of this system in conjunction with control room design provisions is also based on limiting '

the toxic gas exposure to control room personnel consistent with the FSAR design basis and Regulatory Guide 1.95.

Recirculation is defined as operation of the control room emergency ventilation system with the outside air dampers closed. In the event of a radiation release while operating the system in recirculation, the system is operated in the pressurization mode by opening the outside air dampers. Operation of the system in this manner meets the intent of this Specification and satisfies the FSAR design basis and requirements of GDC 19.

3/4.7.7 SEALED SOURCE CONTAMINATION The limitations on sealed source removable contamination ensure that the total body or individual organ irradiation does not exceed allowable limits in the event of ingestion or inhalation of the source material.

The limitations on removable contamination for sources requiring leak testing, including alpha emitters, is based on 10 CFR 70.39(c) limits for plutonium. Leakage of sources excluded from the requirements of this specification represent less than one maximum permissible body burden for total body irradiation if the source material is inhaled or ingested.

3/4.7.8 FIRE SUPPRESSION SYSTEMS The OPERABILITY of the fire suppression systems ensures that adequate fire suppression capability is available to confine and extinguish fires occurring in any portion of the facility where safety related equipment is located. The fire suppression system consists of the water system, sprinklers and fire hose stations. The collective capability of the fire suppression systems is adequate to minimize potential damage to safety related equipment and is a major element in the facility fire protection program.

In the event that portions of the fire suppression systems are inoperable, alternate backup fire fighting equipment is required to be made available in the af fected areas until the inoperable equipment is restored to service.

TROJAN-UNIT 1 B 3/4 7-5 Amendment No. 78, 25 April 13,1978

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