ML17277B191

Marked-up Proposed Tech Spec Changes Re Limiting Condition for Operation of Electrical Power Sys

ML17277B191
Person / Time
Site:	Columbia
Issue date:	12/13/1983
From:	WASHINGTON PUBLIC POWER SUPPLY SYSTEM
To:
Shared Package
ML17277B190	List: ML17277B189 ML17277B191
References
NUDOCS 8312200553
Download: ML17277B191 (5)

Text

3/4.8 ELECTRICAL POMER SYSTEMS 3/4. 8. 1 A. C.

SOURCES A. C.

SOURCES " OPERATING.

LIMITING CONDITION FOR OPERATION 3.8.1.1 As a minimum, the following A.C. electrical power sources shall be OPERABI.E:

a.

Two physically independent circuits between the offsite transmission network and the onsite Class 1E distribution system, and b.

Three separate and independent diesel generators, each with:

2.

3.

Separate day fuel tanks containing a minimum of 1400 gallons of fuel, A separate fuel storage system containing a minimum of 53,000 gallons of fuel for diesel generator 1 (DG-1) and 53,000 gallons of fuel for diesel generator 2 (DG-2),

and 33,000 gallons of fuel for diesel generator 3 (DG-3).

A separate fuel transfer pump.

APPLICABILITY:

OPERAT'IONAL CONDITIONS 1, 2, and 3.

ACTION:

gl$hi~

~ l"o a ~

With either one offsite circuit or DG-1 or DG"2 of the above required A.C. electrical power sources inoperable, demonstrate the OPERABILITY of the remaining A.C. sources by performing Surveillance Requirements 4.8. 1. 1. l. a and 4.8. 1. 1. 2. a. 4, for one diesel generator at a time, within hours and at least once per 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> therafter; restore at least two offsite circuits and DG-1 and DG-2 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 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 /> and in COLD SHUTDOWN within the following 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />.

g<4hw 1 ~~<

With one offsite circuit and D6-1 or DG-2 of the above required A. C.

electrical power sources inoperable, demonstrate the OPERABILITY of the remaining A.C. sources by performing Surveillance Require-ments 4.8. 1. l.l.a and 4.8. l. 1.2.a.4, for one diesel generator at a time, within g bourn and at least once per 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> t'hereafter; restore a

east one of the inoperable A.C. sources to OPERABLE status within 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> 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 /> and in COLD SHUTDOWN within the. following 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />.

Restore at least two offsite circuits and DG-l and DG-2 to OPERABLE status within 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> from time of initial loss 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 /> and in COLD SHUTDOWN within the following 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />.

8312PPPSSS 8 00397 PDR *DOCK 050 PDR A

MASHINGTON NUCLEAR - UNIT 2 3/4 8" 1 SEP 12 563

h II ~ k1

ELECTRICAL POMER SYSTEMS LIMITING CONDITION FOR OPERATION Continued ACTION (Continued) ss 4O++

~)f41&

Mith DG-3 of the above required A.C. electrical power sourc s

inoperable, demonstrate the OPERABILITY of the remaining A. C.

"ources by performing Surveillance Requirements 4.8. 1. 1.l.a~

b

4. 8. 1. l. 2. a. 4, for one diesel generator at a time, within )f; hoursand at least once per 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> thereafter; restore the inoperable OG-3 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 declare the HPCS system inoperable and take the ACTION required by Specification 3.5. 1.

Mith DG-l, 06-2, or DG-3 of the above required A.C. electrical power sources inoperable, in addition to ACTION a., b., or'c.,

as applicable, verify within 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> that all required systems, subsystems,

trains, components, and devices that depend on the remaining OPERABLE diesel generators as a source of emergency power are also OPERABLE; otherwise, 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 /> and in COLD SHUTDOWN within the following 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />.

Mith two of the above required offsite circuits inoperable, demonstrate the OPERABILITY of three diesel generators by performing Surveillance Requirement 4.8. 1. 1.2.a.4 for one diesel generator at a time, within g hour and at least once per 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> thereafter, unless the diesel generators are already operating; restore at least one of the inoperable offsite circuits to OPERABLE status within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> 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 />.

Mith only one offsite circuit restored to OPERABLE status, restore at least two offsite circuits to OPERABLE status within 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> from time of initial loss 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 /> and in COLD SHUTDOWN within the following 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />.

f.

Mith DG-1 and DG-2 of the above required A.C. electrical power sources inoperable, demonstrate the OPERAOILITY of the remaining A.C. sources bv erforming Surveillance Requirements

4. 8. l. 1. 1. a and

4. 8. 1. 1. 2. a. 4 within 8 hour9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br />sand at least once per 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> thereafter; restore at least one of the inoperable OG-1 and OG-2 to OPERABLE status within 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> 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 /> and in COLD SHUTDOWN within the following 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />.

Restot e both DG-1 and DG-2 to OPERABLE status within 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> from time of initial loss 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 /> and in COLD SHUTDOWN within the following 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />.

MASHINGTON NUCLEAR - UNIT 2 3/4 8-2 JUN 32 $83

ELECTRICAL POWER SYSTEMS SURVEILLANCE RE UIREMENTS 4.8. 1. 1. 1 Each of the above required independent circuits between the offsite transmission network and the onsite Class 1E distribution system shall be:

a.

Determined OPERABLE at least once per 7 days by verifying correct breaker alignments and indicated power availability, and b.

Demonstrated OPERABLE at least once per 18 months during shutdown by transferring, manually and automatically, unit power supply from the normal circuit to the alternate circuit.

E

-4.8, 1. 1.2 Each of the above required diesel generators shall be demonstrated OOPERAGLE:

a.

In accordance with the frequency specified in Table 4.8.1.1.2-1 on a STAGGERED TEST BASIS by:

3 Verifying the fuel level in the day fuel tank

-F +

~ 3 2.

Verifying the fuel level in the fuel storage tank.

ski +

~3.

Verifying the fuel transfer pump starts and transfers fuel from A

the storage system to the day fuel tank.

0 VO 4.

Verifying the diesel starts from ambient condition and accelerates ty at least 900 rpm (60 Hz) in less than or equal s

t to 10 secondFfor OG-1 and OG-2 and 13 seconds+for OG-3.

The generator voltage and frequency shall be 4160 2 420 volts and 8 4~

60 t 3.0 Hz within 10 seconds for DG-1 and OG-2 and 13 seconds for 00-3 after tha start signal.

The diesel generator shall be d

V d <<,p started for this test by using one of, tha fol,lowing signals:

a)

Manual.

+i 0 +

0 g

b)

Simulated loss"of"offsite power by itself.

c)

Simulated loss-of"offsite power in conjunction with an ESF Vk l.

o f actuation test signal.

d)

An ESF actuation test signal by itself.

6 p

g 5.

Verifying the diesel generator is synchronized, loaded to 1

greater than or equal to 4400 kW for OG-3 and OG-2 and 2600 kW for DG-3 in less than or equal to 60 seconds+

and operates with these loads fot at least, 4 g sm ) ~~

60 minutes.

e oqg Verifying the diesel generator is aligned to provide standby power to the associated emergency busses.

Verifying the pressure in all diesel generator air start receivers to be greater than or equal to 230 psig for OG-1 and OG-2 and 200 psig for OG-3.

b.

At least once per 31 days and after each operation of the diesel where the period of operation was greater than or equal to 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> by checking for and removing accumulated water from the day fuel tanks.

WASHINGTON NUCLEAR - UNIT 2 3/4 8"3 SEP 1 2 883

N

~

~

~

S

~ r~

TASLE 4. 8. l.l. 2"1 DIESEL GENERATOR TEST SCHEDULE Number of Failures in Last 100 Valid Tests~

Test Fre uenc At 1 east once per 31 days At least once per 14 days At least once per 7 days At least once per 3 days "Criteria for determining number of failures and number of valid tests shall be in accordance with Regulatory Position C.,2. e of Regulatory Guide 1. 108, Revision 1, August 1977, where the last 100 tests are determined on a per nuclear unit basis.

For the purposes of this test schedule, only valid tests conducted after the OL issuance date shall be included in the computation of the "last 100 valid tests.'l Entry into this test schedule shall be made at the 31 day test frequency. Ni~ We except~ ef ~ se~i-~>>~l

$a~4 ~&vs) ~a sMtig ~~ rg~<<~~~S c ve ~g~ivcJ

• V4-t<~ + k Atv'eM~QS 0 P

'WASHINGTON NUCLEAR - UNIT 2 3/4 8-9 jv'i< Zd 883