ML20237D117

Proposed Tech Spec Section 3.5.5, Accident Monitoring Instrumentation & Table 3.5.5-1, Accident Monitoring Instrumentation Operability Requirements, Changing Page Ref & Wording,Respectively

ML20237D117
Person / Time
Site:	Rancho Seco
Issue date:	12/15/1987
From:	SACRAMENTO MUNICIPAL UTILITY DISTRICT
To:
Shared Package
ML20237C858	List: ML20237C855 ML20237D117
References
NUDOCS 8712230057
Download: ML20237D117 (4)

Text

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RANCHO SECO UNIT 1 TECHNICAL SPECIFICATIONS TABLE OF CONTENTS (Continued)

Section Page I

3.1.6 Leakage 3-12 3.1.7 Moderator Temperatt e Coefficient of Reactivity 3-15 3.1.8 Low Power Physics Testing Restrictions 3-15b 3.1.9 Control Rod Operation 3-16 3.2 HIGH PRESSURE INJECTION, CHEMICAL ADDITION, AND LOW TEMPLRAIURE OVERPRL55URL PROILGi10N (L10P) 5Y51LM5 3-17 3.3 EMERGENCY CORE COOLING, REACTOR BUILDING EMERGENCY COOLING, AND REACTOR BUILDING SPRAY SYSTEMS 3-19 3.4 STEAM AND POWER CONVERSION SYSTEM 3-23 3.5 INSTRUMENTATION SYSTEMS 3-25 3.5.1 Operational Safety Instrumentation 3-25 3.5.2 Control Rod Group and Power Distribution Limits 3-31 3.5.3 Safety Features Actuation System Setpoints 3-34 3.5.4 Incore Instrumentation 3-36

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3.5.5 Accident Monitoring Instrumentation 3-38d 3.6 REACTOR BUILDING 3-39 3.7 AUXILIARY ELECTRICAL SYSTEMS 3-41 3.8 FUEL LOADING AND REFUELING 3-44 84><

3.9 SPENT FUEL POOL 3-46a 3.10 SECONDARY SYSTEM ACTIVITY 3-47 3.11 REACTOR BUILDING POLAR CRANE AND AUXILIARY HOIST 3-49 3.12 SH0CK SUPPRESSORS (SNUBBERS) 3-b1 3.13 AIR FILTER SYSTEMS 3-52 3.14 FIRE SUPPRESSION 3-53 3.14.1 Instrumentation 3-53 3.14.2 Water Systen 3-53 3.14.3 Spray and Sprinkler Systens 3-56

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3.14.4 C0p System 3-56 Anendment No. 22, 64 iii 8712230057 871215 PDR ADDCK 05000312 P

PDR i

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~ RANCHO SECO UNIT 1 TECHNICAL SPECIFICATIONS l

Limiting Conditions for Operation 80>

3.5.5 ACCIDENT MONITORING INSTRUMENTATION Accident monitoring instrumentation channels shown in table 3.5.5-1

.shall be OPERABLE with their alarm / trip setpoints as shown.

Applicability As shown in Table 3.5.5-1.

Action l

A.

With an accident nonitoring instrument channel less conservative than the setpoints provided in Table 3.5.5-1, declare the channel inoperable.

B.

With less than the minimum number of operable channels, take the ACTION shown in Table 3.5.5-1.

Bases Table 3.5.5-1 lists the operability requirements for the various types of accident monitoring instrumentation that were installed in response to NUREG f.

0737, items II.F.1 and II.F.2.

This new set of equipment meets or exceeds the amount of coverage outlined in Generic Letter No. 83-37, "NUREG-0737 Technical s

Specifications." Most of the instrument parameters in Table 3.5.5-1 are monitored by redundant equipment. However, a failure of any one of the radiation monitors described in items 1, 6, and 7 would place that item in an LCO position and would require action number I.

If the inoperable channel cannot be repaired within 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br />, Action Statement Number I requires that a, pre-planned alternate method of monitoring be initiated.

Operating procedures will be used to control the use of backup radiation equipment.

Amendment No. 80 3-38 d

RANCHO SECO UNIT 1 TECHNICAL SPECIFICATIONS

+

Limiting Conditions for Operation TABLE 3.5.5-1 ACCIDENT HONITORING INSTRUMENTATION OPERABILITY REQUIREMENTS (l) 80>

Total Number Minimua Nuaber Al a rct/ T ri p of Channels of Channels Setpoint Ac ti on Instrument Operable 1.

Containment Area 2

2 12 rad /hr I

High Range Radiation Monitor 2.

Wide Range Con-2 1

N/A II tainment Water (Range Level 0-10 ft) 3.

Containment 2

1

<4 Percent II Ii Conc Hydrogen Analyzer 2

4.

Emergency Sump 2

1 54 Ft. (High III Level Alam on Computer) l 5.

Containment Wide 2

1 N/A II Range Pressure (Range -5 to Monitor / Recorder 180 psig)

)

6.

High Range Noble N/AI2)

I Gas Effluent Monitors (Rarige 10-7 a)

RB Exhaust Stack (3) 1 1

b)

Aux Building Stack 1

1 c)

Radwaste Venti 4}

1 1

7.

Main Steam Lines 2

2

-<10 mr/hr I

Radiation Monitors 8.

Subcooling Margin 2

1 No alarms.

II Monitor Procedural controls in place 9.

Incore Thermocouple 4/ core 2/ core (Range 200 -

III quadrant quadrant 2300 F)

(1)

This Table applies at all times except during cold shutdown or refueling.

(2)

Alarm limits are set according to the Offsite Dose Calculation Manual.

(3) Monitoring of the RB Exhaust Stack is not required when the purge and/or equalizing valves are closed.

I4) Monitoring of the Radwaste Vent is not required when the unit is not operatisig.

Amendment No. 80 3-38e

RANCHO SECO UNIT 1 TECHNICAL SPECIFICATIONS i

Ll' Limiting Conditions for Operation t

80>

Table 3.5.5-1 (Continued)-

Action I.

With the number of OPERABLE channels less than the Minimum Channels

~ OPERABLE ' requirement, either restore the inoperable Channel ( s) to OPERABLE status within 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br />, or:

1)

Initiate the pre-planned alternate method of monitoring, and 1

l 2)

Prepare and submit a Special Report to the Commission pursuant l

to Specification 6.9.5.0, within 30 days following the event, l

outlining the action taken, the cause of the inoperability, and the corrective action and schedule for implementation.

i II.

a.

With the number of OPERABLE accident monitoring instrumentation channels less than the Total Number of Channels, restore the inoperable channel (s) to OPERABLE status within 30 days, or be in at least HOT SliUTDOWN within the next 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br />.

b.

With the number of OPERABLE accident monitoring instrumentation l

channels less than the Minimum Number of Channels Operable, restore the inoperable channel (s) to OPERABLE status within 7 l

days or be in at least HOT SHUTDOWN within the next 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br />.

III.

With the number of OPERABLE accident monitoring instrumentation

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channels less than the Minimum Number of Channels Operable, restore the inoperable channel (s) to OPERABLE status within 30 days, or be in at least HOT SHUTDOWN within the next 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br />.

1 I'

l l

l Amendment No. 80 3-38f I

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