ML18095A780

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Proposed Tech Specs Section 3/4.8.1 Re Improvements to Diesel Generator Reliability
ML18095A780
Person / Time
Site: Salem  PSEG icon.png
Issue date: 03/06/1991
From:
Public Service Enterprise Group
To:
Shared Package
ML18095A779 List:
References
NUDOCS 9103130134
Download: ML18095A780 (28)
v • d • e


Text

89006N-H'IN

.. f '

3/4.8 ELEC'iRICAL POWER SYSiE~S 3/4.8-. l

  • A.C. SOURCES OPERAi!NG LIMlT!NG CONDITION FOR OPE.~TION 3.8.1.l As a minimum, the following A.C. electrical power sources shall be OPE.~SLE: . 11.c.( ..
a. P1'0 physically independent circuits betaeen the offsite trans-mission net-110r!c and the onsite Class lE distribution system (vital bus system), and . , *
b. rnree separate and independent diesel generators with:
1. Separate day tanks containing a minimum volume of 130 gallons of fuel, and
  • 2~ A common fuel storage system consistin~ of two storage tanks, eac:h containing a minimum volume of Z0,000 gallons of fuel, and two fuel tr*ansfer pumps.~ a.nrtl kmo11.-

~trt:cfe APPL!CASIL!iY: MODES 1, Z, 3 and 4.

o PER.A6lt..IT'(

ACTION: t>F +-1'£'ee-

a. Wfth either an offs1te ircuit of the above ol*ese { ~en -

requf-red A.C; electrical power so ces inoperable, demonstrate ertA.fors by the OPERABILITY of the remaining *

  • by performing (J2r.Grtri~li, Surveillance Requirementf 4.a. 1.1.1.a a"d 4.8.l.l.Z.a.2 within >oc.r11~; (/0.11 c e one hour and at least once per a houM tilerea.ftar~~~store H-

+he inopera.'f~ ircui t,- aAEi ihl"ee El1ese1 geAel"atePS to R.er;ui re..-.elff' i "'kpeder'I+ .OPE.~SLE status .,.,ithin 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 STANDBY ""* ~./. /. -;J..Q.;)..

}l.C 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 . t.lie fa 11 ow- w 1-11.~ 1\

~--...,..---+.J---..:..:........:::...ing 30 hours3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br />. iflclepe~dMf A.c.. "l 'i kc>urs *

t.vseQ:l' 1 ~ )F. with one circuit and one diesel aenerator of the above re uired A.C. electrical ower sources inoperable, demonst.rate j nole ptznJe11f the OPERABILITY of th' ra'l!aining A.G. seijPees oy performing Surveillance Require.'1lentY4.8.1.1. l.a aAEI 4.8.1.1.2.a.a '"it."tin Pc.C... cifc.14;""' one hour and at 1east once per 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> thereafter;" ras~ore at least one of the inoperable sources to OPE?.ASLE status *,-1ithin lZ hours. or be in at least HOi STANDBY within the next 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br />
  • o"e iMe~eraele fl::lel t'l"!l'lsfer pump is e~ui*talel'lt :e eAe iAe~eraale diesel ~eflera~er.

SALE-!-UN!i 1 3/ 4 8-1

Insert 1 to p. 3/4 8-1

b. With one diesel generator of the above required A.C.

electrical power sources inoperable, demonstrate the OPERABILITY of the independent A.C. circuits performing surveillance Requirement 4.8.1.1.1.a within 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br />; and demonstrate the OPERABILITY of the remaining diesel generators by performing Surveillance Requirement 4.8.1.1.2.a.2 within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />; restore the inoperable diesel generator 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 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 />.

Insert 2 to p. 3/4 8-1 demonstrate the OPERABILITY of the remaining OPERABLE diesel generators by performing Surveillance Requirement 4.8.1.1.2.a.2 within 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br />;

' '

-~LECiRICAL I POWER SYSTEMS ACTION (Con tin ued)

A.C.

and *f n COL SHUTIJOWN within the following 30 hours3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br />. Restore at leas t two.ef?9i'e9 circuits and three diesel generators 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 the time .of initial loss 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 COLO SHUTDOWN within the following 30~

  • inJ.~pMJt11

(]ft. . W1th two of the above required effsite ** c rcuits inoperable, demo nstrate the OPERABILITY of three diesel generators by performing Surv eillance Requirement 4.8.l.1.2.a.2 within aRe RaYP aRa at leas t eR~e ~eP 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> t~ePeaf~e~' unless the diesel generators are already operating; restore at least one of the inoperable

  • iflal.ete~11..f

~ etfs ite seYPees to OPERABLE status within 24 hours or be in .at A.,. ~ir~ui+s

[ oPEllAB~ 1eas t 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 />. With only one~

e:F:fs o~i~~~~~~~~=t=~~~in'1~t~~~r-:tf~: ~i::eo~'r~~~~a~ VOSS1'. . . . . . +lie o+l.er :~Jef~~,e~r 9 1 to 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 A. c.. c.ir~"il-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 />.

@At. With two or mare of the above required diesel generato~inJep~~Je~tJ inop erabl e, demonstrate the OPERABILITY cf two eUsit§ A.C. .

circ*uits by perfonning Surveillance Requirement 4.8.1.1 ..1.a with in one 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 /> thereaftar; restore at least ~NO of the inoperable diesel-generators to OPE.RABLE 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 HOi STANDBY with in 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 nours. Restore three diesel generators to OPERABLE status with in 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> from time cf initial loss or be in least HOT STAN OBY within the next *s hours and in COLO SHUi'OOWN within the following 30 hours3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br />.

......,.

&tJ~IZT I; SURVEILLANCE REOUIREMENTS

. rA.r.1 .

4.8. 1.1.1 iwo physically independent'icr'rcuits between the offsita trans-mission net'.11or'K and the onsite Class lE distribution systam (vital bus system) shall be:

a. Oete rmi ne<t OPEAABLE a*t 1east once per 7 days by verifying correct breaker alignments, power availability, and
b. Demo nstratad OPERABLE at least once per 18 month.s during shut-down by transferring (manualiy and automaticaily) vital bus supp ly from one 13/4 kv transformer' to the o:her 13/4 kv
  • tran sformer.

I ISAL::M-UN!i

,

I 3/4 8-2

  • f. With one of inoperable, 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> or 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> and hours.

Insert 1 to p. 3/4 8-2 the above required fuel transfer pumps either restore it to OPERABLE status within be in at least HOT STANDBY within the next in COLD SHUTDOWN within the following 30

g. With one of the above required fuel storage tanks inoperable, either restore it 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 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 />.

I '

ELECTRICAL POWER SYSTEMS SURVEILLANCE REQUIREMENTS (Continued)

&'11 a.ccorJo.M.f w;~ f'J..(! 4.8.i.1.2 Each diesel generator shall be. demonstrated OP~~BLE:
.el

.fr"'1"'et1c;.y .. a. At least anee ~er 31 aay~~on a SiAGG~REO TEST BASIS by:

$fee~ F* eotf 1 I\

~Me 'i-~--1 1. Verifying the fuel level in its day tank.

2. Verifying the die!el st!FU from !IT!bh,,t co,,c!itie" and ac:selu*ates ta at least 900 l"~m iFI ! ro seeenE!s.
a. Veri fyi FllJ the geAerater is Sj'"CAT"Ol'li zed. 1eaded to !. 1400 bi; 1 aRd a~erates fer!. 60 min~~s.

~,. Verifying the diesel generator is aligned to pro~1de standby power to the associated vital buss-es.

J.<:'-------11 I"'SEl2i ~ I

~)S. At least once per 18 months during shutdown by:

1. Subjecting the diesel to an inspection in accordance with procedur9s prepared in e:injunction with its manufactur9r's reco1Tmendations for this class of standby service,
2. Verifying ~ ~eAeraial" ca!!at!li1 i ty te ~jeet a lead of

-

785 ~ 40 kw .

witne~t tripping, -tF------l":r;""'JJr:El21" 3 j Simulating a loss of offsite power in conjunction with a§}~-----

safety i Aj eeti aA tas tlt'&.;.s_i_g_na_l_,_a_na_:_ _ _ _ _ _ _ _ _ _, F~F a.c.~ 4 f.*o,,

-r~r;.t a) Verifying de-energization of the vital bu~ and load shedding f-rom the vital buss.es--.

b) Verifying the di es el start~m lf!lei el'lt eel'leliti el"!

on the auto-start signal, enel'"9i'zes the vital bus~

. with pe!'"!!lanently connectad load , ene izes the autJ-connected eme gency oads through the load sequence!'" anc operates or 5 minutes while its generator is loade~

with the emergency loads.

ne Sfea.ly SfAfe 'tD/fQ..Je ctnol Freit1en<=y .o-F +le v,-fq/ Jiu~

shall be ,;na;n~**rieJ qf

'1"0 .:! '-/"J.O volfs qnc/ 60 t /. "J.

Hr: durJf\ f/..-s +eGf:

~LE:!-UNI'i 1 3( 4 8-3

Insert 1 to p. 3/4 8-3

2. Verifying the diesel starts and accelerates to 900 rpm in less than or equal to 10 seconds. The generator voltage and frequency shall be 4160 +

420 volts and 60 +/- 1.2 Hz within 13 seconds after the start signal.

Subsequently, verifying the generator is synchronized, gradually loaded to 2500-2600 kw**,

and operates at a load of 2500-2600 kw greater than or equal to 60 minutes.

Insert 2 to p. 3/4 8-3

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 one hour by checking for and removing accuiiiuratea-*water from tne aay t:anJes. --------.-- -*- ----
c. At least once per 184 days the diesel generator shall be started and accelerated to at least 900 rpm in less than or equal to 10 seconds. The generator voltage and frequency shall be 4160 +/- 420 volts and 60 +/- 1.2 Hz within 13 seconds after the start signal.

The generator shall be synchronized to its emergency bus, loaded to 2500-2600** kW in.less than or equal to 60 seconds, and* operate at a load of' 2500-2600 kw for at least 60 minutes.

This test, if it is performed so it coincides with the testing required by Surveillance Requirement 4.8.1.1.2.a.2, may also serve to concurrently meet those requirements.

Insert 3 to p. 3/4 8-3 on rejection of a load greater than or equal to 785 kW, the voltage and frequency are restored to 4160 +/- 420 volts and 60 +/- 1.2 Hz within 4 seconds.

3. Simulating a loss of offsite power by itself, and:

a) Verifying de-energization of the vital bus and load shedding from the vital bus.

b) Verifying the diesel starts on the auto-start signal, energizes the vital bus with permanently connected loads within 13 seconds, energizes the

Insert 3 to p. 3/4 8-3 (cont'd) auto-connected shutdown loads through the load sequencer and operates for greater than or equal to 5 minutes while its generator is loaded with the shutdown loads. The steady state voltage and frequency of the vital bus shall be maintained at 4160 +/- 420 volts and 60 +/- 1.2 Hz during this test.

4. Verifying that on an ESF actuation test signal without loss of offsite power the diesel generator starts on the auto-start signal and operates on standby for greater than or equal to 5 minutes. The generator voltage and frequency shall be 4160 + 420 volts and 60 +/- 1.2 Hz within 13 seconds after the auto-start signal and shall be maintained within these limits during this test.
5. Not Used.

' '

ELECTRIC~L ?C~E~ SYSiEMS SURVE!LLANC~ REOU!REMENiS (Continued)

I no11esse11-fia.fl

..---....,....,...-"""'c.....,) Verifying that al l\tautcmati c: di es el generator trips~

[o.e, o+4er ""4t7~6C!Pt engine over-speed, lube oil pr!ssure low, 4K'/ r:i bus differential and generator differential¥, are L.}j

. automatically bypassed upon loss of voltage on the 1~:r.1tl11u~ifh~- f erne~eAey Gl;IS aAG/ai=\osafety injection ac:t~aticn S_1;nai:

4. '.'eri fyiA§ the Eli ese1 geAePatsr Qperatu fQr .!. 60 minutas while leaeee te !. 26SS ltw.
5. VerifyiAg that the a1;1ta*CGAAeGtee 1eaes U3 eaeA E!iesei

~ geAerater E!e Aet exe::s ti-le 2000 he~r .ratiAg ef 27e9 ~w.

L-X-"15E(JT t l ').

4.8.1 .l.3 The diesel fuel oil storage and t~ansfer system sMa11 be demcnstrated OFERASL~:

a. At least once per 31 days by:
1. Verifying. the level in each of the above re~uir!d 20,000 gallon fuel storage tanks.
2. Verifying that both fuel transfer purni::s c:an be star-:ed and transfer fuel f'l"Om the 20,000 gallon storage tan~s to t~e day tanks.
b. At least once per 92 days by verifyfog that a sample of"diesei fuel from each of the above !'"!quired 20,000 gallon fuel storage tanks is within the acceptable limits s~ecified in iab1e 1 of ASTM 0975-_!8i'wnen che~ked for viscosity, wa!ar and sadi~ent.

[ill 3/ci S-J

--~-------=---------"-=-~--~- -.- .. ---**-**

1 '

Insert 1 to p.* 3/4 8-4

7. Verifying the diesel generator operates for at least 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />. During the first 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> of this test, the diesel generat.or shall be loaded to. its maximum design load and associated duration, or between 2760-2860 kw, whichever is greater.** During the remaining 22 hours2.546296e-4 days <br />0.00611 hours <br />3.637566e-5 weeks <br />8.371e-6 months <br /> of this test, the diesel generator shall be loaded to 2500-2600 kw*** The steady state voltage and frequency shall be maintained at 4160 +/- 420 volts and 60 +/- 1.2 Hz during this test. Within 5 minutes after completing this 24 hour2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> test, perform Surveillance Requirement 4.8.1.1.2.d.6.b.***
8. Verifying that the auto-connected loads to.each diesel generator do not exceed the maximum design load and associated duration.
9. Verifying that with the diesel generator operating in a test mode (connected to its bus), a simulated safety injection signal overrides the test mode by (1) returning the diesel generator to standby operation and (2) automatically energizing the emergency loads with offsite power.
e. At least once per ten years or after any modifications which could affect diesel generator interdependence by starting all diesel generators simultaneously, during shutdown, and verifying that all diesel generators accelerate to at least 900 rpm in less than or equal to 10 seconds.

Insert 2 to p. 3/4 8-4 4.8.1.1.4 Reports - All diesel generator failures, valid or non-valid, shall be reported to the Commission in a Special Report pursuant to Specification 6.9~2 within 30 days. Reports of diesel generator failures shall include the information recommended in Regulatory Position C.3.b of Regulatory Guide 1.108, Revision 1, August 1977. If the number of failures in the last 100 valid tests (on a per nuclear unit basis) is greater than or equal to 7, the report shall be supplemented to include the additional information recommended in Regulatory Position C.3.b of Regulatory Guide 1.108, Revision 1, August 1977.

Insert 2 to p. 8/4 8-4 (cont'd)

  • Surveillance testing shall be conducted in accordance with the manufacturer's recommendations regarding engine pre,lube, warm-up and loading (unless loading times are specified in the individual Surveillance Requirements) *
    • This band is meant as guidance to preclude routine exceedances of the diesel generator manufacturer's design ratings. Loads in excess of this band for special testing or momentary variations due to changing bus loads shall not invalidate the test.
  • ELECTRICAL POWER SYSTEMS SURVEILLANCE REQUIREMENTS (Continued)
  • TABLE 4.8-1 DIESEL GENERATOR TEST SCHEDULE Number of Failures in Last 20 Valid Tests
  • Test Frequency Less than or equal to 1 At least once per 31 days Greater than or Equal to 2 At least once per 7 days
  • Criteria for determining the 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 number of tests and failures is determined on a per diesel generator basis.

SALEM - UNIT 1 3/4 8-4b

. '

... - _..-.

....

.

---

ELECTiUCAL ?"OWER SYSTEHS SHUTOOt~N LIMITING CONDITION FOR OPEAAiION 3.8. l .2 As a minimum, the following A.C. el.ectrical power sourcas shall be OPEAASLE:

a. One c1rc:uft be~"'een the offsite transmission neti.~ork and the ons1te Class lE distribution system.( and 1---1-1---b- .*- - -

Two diesel generators wit.i:

I{11i+c.( ""~ ~j'S~...i)J

- -*-

l. Separate day tan~ntaining a minimum volume of 130 gallons of fuel.~
2. A common fuel storage system containing a minimum volume of 20,000 gallons of fuel, and
3. A fuel transfer pump.

APPLICABIL!iY: .MODES 5 and 6.

ACTION:

With less than the above minimum required A.C. electrical ~ewer sources OPEAABLE,. suspend all operations involving CORE ALiERAi!ONS or positive reac:ti vi ty changes until the mini mum required A. C. e1ectri cal po*"'er sources are restored to OPERABLE status.

  • SURVEILLANCE REQUIREMENTS

. . ~* . .

4.8. l .2 The above r ~uireecepf . For fef"';r-eme.,,,f i./. e. /./. '3. q. '":)..)

SALEM-Ui'Hi l 3/4 8-5 Q.ncl '"/.'J.I,/."/.

. '

Insert 1 to p. 3/4 8-5

  • The demonstration of diesel generator operability per this Surveillance Requirement is only considered a valid test (for the purpose of reducing testing frequency in accordance with Table 4.8-1) if the requirements of surveillance 4.8.1.1.2.a.2 are satisfied. However, should the diesel fail during testing per this Surveillance Requirement, it shall be considered a valid test and failure and the additional actions prescribed by Table 4.8-1 shall apply.

...

... ,..

3/4.S ELECiR!CAL POWER SYSTEMS BASES

,

The OPEAASILITI of the A.C. and O.C power" soul"'ces and associated d1stribution systems during opel"'ation ensures *that sufficient power" *,.,;11.

be available to supply the safety related equipment required for"l) the safe shutdown of the facilitYJ)and 2) the mitigation and central of acc1de~t conditions within tffe facility. The minimum specified inde~en dent and redundant A.C. and O.C. power" sources and distribution systems satisfy the requirements of General Design Crite~ 17 of Appendix "A" to lo c~o.

?u-t-

. e ACi!ON requirenents specified for the levels of degradation of .

~e power sources provide restriction upon ccntinued*facility operation ~f comnensurate with the ievel of degradation. !he OPEAABILiiY of t..,e power r~olu sources an consistent with the i ni ti a 1 condition assumpti ans of th_ll.,_ _ _.__se_f_ __.__

accident analyses and are based upon maintaining at least one v~ ~-":. of tt'te onsite A.C. and O.C. ~ewer sources and associated distribution systems OPERABLE dur1ng accident conditions coinc1c1ent with an assumed loss of o1fs1te power and single failur-e of the other onsite A.C. sourca.

The OPERABILITY o1 the minimum specified A.C. and O.C. power sources and associat~ distribution systems during shutdown and refueling ensures that 1) the facility can be maintained in the shutdown or refueling condition for extended time periods and 2) sufficient instrumentation and control capability 1s available for monitoring arid maintaining the faei 1i ey status *

.  :

-

!

'

(- The Su rv: 1 f,;~~ Requf rements for demon st rat j ng th0-0~RAB LIT~

I of : : * "Tl

(~'I diesel generators based upon the reco11111endations of Regulatory Guide 1.9, "Selection of Diesel Generator Set Capacity for Standby Power Supplies," March

(. i.: 10, 1971, and meetiAg t~e Felial:>ility geals d1sc1:1ssed 1ArRegulatory Guide 1.108,

( "Periodic Testing of Dfesel Generator Units Used as Onsite Electric Power

_\_Systems at_ Nu~l_ea_r Power Plants," Revision 1, August 1977. __ .

3 3/4 8-1

..

  • .. ,-*

3/4.8 ELECTRICAL POWER SYSTEMS 3/4.8.1 A.C. SOURCES OPERATING LIMITING CONDITION*FOR OPERATION 3.8. 1. 1 As a minimum, the following A.C. electrical power sources shall be OPERABLE: rA.'l.l ..

a. Two physically independen~cuits between the offsite transmission network and the onsite Class lE distribution system:* (vital bus system),

and

b. -Three separate and independent diesel generators with:
l. Separate* day tanks containing a minimum volumerof 139 gallons of fuel, and *
2. A co111111on fuel storage system.consisting of two storage tanks, each containing a minimum volume of 20,000 gallons of fuel, and

.\ two fuel transfer pumps.w-.e..

APPLICABILITY: MODE~ 1, 2, 3 and 4.

lt1olef~"J""t ACTION: I- -inJ.eps;irieti+

,

A. C. I A.C. cHG11;t

a. With either an effsit&4circuit er diesel gener~t&r of the above ~ke l rANi. k(fl<>flsfrA.f<t required A. C. electrical powe sources inoperable, demonstrate the IM etrtL e t>Pf;f<A-811-l'ry of OPERABILITY of the remaining A.6. se~Pees by performing Surveillance

~tiieSe I 7e,,- Re uirementf'4.8. 1.1. l.a aAa 4.8.1.1.2.a.2 within one hour and at -+~----1.:---:-t least once per ours therea ter; restore at least twe effsite in epet1 ~"1 ertt+&r.s ~'I eircuitf'ana three aiesel geAePatePS to OPERABLE status within A.C.c;irtuif. '

perfurm~" '"r- 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 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 11e: lltt11C,e Re -

'5 .c.i re '1\e'ill t'

.Jn COLD SHUTD

' *.

w"thi the fol lo\l!ing 30 hours3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br />.

inde fJclb1"'/-

  • c.. (

I: :r,J~Efr. i I.

"f*'i*/, {."JA, 'J... l Jf* With one effsite circuit and one diesel generator of the above w1+h111 'J.t{ itor.Ars. r_equired A.C. electrical power sources inoperable, demonstrate the OPERABILITY of the remainin by performing Surveillance l"olepe(\ol. eri +

Requirement,-4.8.1.1. 1.a aAa 4.S.1.1.2.a.a within one 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;'2\J"estore at least one of the j::c,.i.sERT.21 A. c. c:rc.w;f' inoperable 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 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

'1!1-0ne ineperable f~el transfer p~mp is eq~i~alent te eAe ineperable diesel geAerater.

SALEM - UNIT 2 3/4 8-1 I.

L

Insert 1 to p. 3/4 8-1

b. With one diesel generator of the above required A.C.

electrical power sources inoperable, demonstrate the OPERABILITY of the independent A.C. circuits by performing Surveillance Requirement 4.8.1.1.1.a within 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br />; and demonstrate the OPERABILITY of the remaining diesel generators by performing Surveillance Requirement 4.8.1.1.2.a.2 within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />; restore the inoperable diesel generator 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 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 />.

Insert 2 to p. 3/4 8-1 demonstrate the OPERABILITY of the remaining OPERABLE diesel generators by performing Surveillance Requirement 4.8.1.1.2.a.2 within 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br />;

I '

ELECTRICAL POWER...-SYSTEMS

  • ~

ACTION (Continued) inJtpemle11f /l.C.

within the following 30 hours3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br />. Restore at least two effsite circuits and three diesel generators 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 the time of initial loss 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 />.

Iii . spa"'jj!.l+/-J

~t. With_ two of the above requ_ired,eUsite A.C. circuits inoperable, demonstrate the OPERABILITY of three diesel generators by performing Surveillance Requirement 4.8. 1.1.2.a.2 within eRe ~e~P aRe at least

~enee per 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> thef'eafter, unless the diesel generators are already

~ +k~ i{\krt.tthnf operating; restore at least one of the inoperable effsite se~Peerl:'-;;.;;:t=o--La.&:~==

0

,4C c.n.c.w:+s '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 STANDBY within

  • * ~SLf e nex ours. l on y one
  • restore a:&

ft ' ~least twe eff&ita circuitf 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

--~---::--~1,-::1:1 time of initial loss or be in at least HOT STANDBY within the next

~e other if\Jepe:i trtfA.~ 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 />.

l2. i ,.Je ~nrl~11 f- .

~r{. With two or more of the above required diesel generators inoperable, demonstrate the OPERABILITY of two

  • A.C. circuits by performing Surveillance Requirement 4.8. 1.1. l.a within one 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; restore at least two of the inoperable diesel generators 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 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 />. Restore three diesel generators 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 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 fo 11 owing 30 hours3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br />.

lr~ellT 11 .>

SURVEILLANCE REQUIREMENTS

[tc.j . -

-4.8. l. l. 1 Two physically independent circuits between the offsite transmission network and the onsite Class. lE distribution system (vital bus .system) shall be:

a. Determined OPERABLE at 1e*ast once per 7 days by verifying correct breaker alignments, power availability, and
b. Demonstrated OPERABLE at least once per 18 months during shutdown by transferring (manually and automatically) vital bus supply from one 13/4 kv transformer to the other 13/4 kv transformer.

SALEM - UNIT 2 3/4 8-2

I '

Insert 1 to p. 3/4 8-2

f. With one of the above required fuel transfer pumps inoperable, either restore it. 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 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 />.
g. With one of the above required fuel storage tanks inoperable, either restore it 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 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 /> .
  • I
  • ELECTRICAL ?O'WER SYSTE45 SURVEIL~HCE REQU!Re4EMTS (Continued)

~

4. a. 1. 1. 2 Eac:h d1 uel genera.tor shal 1 be demonstrated OPERAS}E:
a. In accardanc:e with the fM!quenc:y specified 1n Table 4.S-1 on a STAGGERED TEST BASIS by:
1. V*1"ifying the fuel level in its day tank.
2. Verifying the diesel starts f~m alllaieAt eeAaitiaA and accelerates to a* lea*' 900 l"l)m in less than or equal ta 10 seconds. The l generator volt.gs and fM!quenc:y shall be 4160 : 420 volts and r

I S""~i~11fli, !;,~ 6~: 1.2 Hz within U seconds attar th* start signal. I~r4oluo.lo/J

~ vVe1"ifying th* g1nerato1" is synchronized,~loaded to g"4ataP tAaA

_-a.S"oo- I a GP eGlliil to *2600 kw,. and operatH for reata1" than 01" e ual to 50 111inutes. 1J.+ ... lo<Uf oF <J.5'o0-"J.G(}()

~tt' V*rifying th* diesel generator is aligned to prcvide standby pcwe1" to th* assaciaUd vital bus~

b*. At"least once per 31 days and after each operation of the diesel wher9 th* 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 far and 'l"!!llOving accumulated water fam the day tanks.

l:r,,,setlr I -I*--~

V- At 1east anca per 1a rnanths during shutdo.,,,n by:

~ 1. Subjecting th* dies*l to an inspection in accordance with procadu~s p~~ared in conjunction with its manufacturer's

~ca1111endations far this class of .standby service,

2. Verifying that, on rejection of a load of greater than or equal ta 785 kw, the vo 1tage and frequency are res tared to .,.,; tAi A .e_

4160 : 420 volts and 50 t 1.2 Hz within 4 seconds.

3. . Simulating a lass of offsita power by itself, and:

a) Verifying d.-*nergization of the vita.1 bus&eS- and load shedding fl"C* th* vital busffG-.

b) Verifying th* diesel starts on the auto-start signal, energizes th* vital busees- with peM11anently connected 1oads within l3 seconds, energizes the auto*c:onnac:tad shutdawn loads thrcugh the load sequencer and operates for

. gruur than or* equal ta 5 minutes .,.ntle its g.enarato.r h vit~/ loaded with the shutdown loads. The steady state voltage and fM!quency o

  • bus141- shall be maintained at 4160 : 420 volts and 50 : 1.2 Hz during* this test .

. 4. Verifying th~~on an*ESF actuation test signal "ithout loss of offsite po'#e1VJ the diesel generator starts on tg; auto-start signal and o?erates on standby for greater than or equal to 5 minutes. The generator voltage and frequency shall be 4160:

r---i-1 4za-~~lts and 60: l.Z Hz within l3 seconds after the auto-start

~~ nau §IAeP'atar valta§e af'ld f1"'~~1:1eAey shall be ~aintained within these limits during this test.

SALEM - UNIT Z 3/4 8-3

.. '.

  • c.

Insert 1 to p. 3/4 8-3 At least once per 184 days the diesel generator shall be started and accelerated to at least 900 rpm in less than or equal to 10 seconds. The generator voltage and frequency shall be 4160 +/- 420 volts and 60 +/- 1.2 Hz within 13 seconds after the start signal.

The generator shall be synchronized to its emergency bus, loaded to 2500-2600** kW in less than or equal to 60 seconds, and operate at a load of 2500-2600 kw for at least 60 minutes.

This test, if it is performed so it coincides with the testing required by Surveillance Requirement 4.8.1.1.2.a.2, may also serve to concurrently meet those requirements .

  • ELECTRICAL  ?~ER SYSTEMS SURVEILLANCE REQUIREMENTS (Continued) af tA1 ~i1sel g1A1rate~ is i" aecorda"ce witA sesi§" ~e~~iremeAtJ.
6. Simulating a loss of offsita pow1r fn conjunction with an eSF actuation test signal, and a) Verifying d1*en1rgizatian of the vital busses and load snldd1ng fra11 th* vital bussas.

b) Verifying th* diesel .stcrts f~m uia;1Ai ;aAditie" on the auta-stcrt signal, 1n1rgizes th* vital busses with perma-nently conntettd loads within l3 seconds, energizes the auto*eonn1ctad emergency (accid1nt) loads through the load sequencer and operates for greater than or equal to S minutes whil1 it~ g1n1ratar is load1d with th* emergency loads. Thi steady state voltage and frequency of the j,;+Q.1[ >*u*g1iic:y bus.w. shall b* maintained at 4160: 420 volt.$

and 60 : 1.2 Hz durin i tast.

flO(I e,641t+i'4 /

.-------=c'-£w) Verifying that all automatic diesel gan1rator tripsif" I {i.e. ~-fh,rHtA11 ~eJC;esat. engine oversi:;ieed, lub1 oil pressure low, 4 KV Sus UJ

~ differential and generator differentia1'6fare automat1ca111 bypassed upon loss of valtag1 on the vital bus concurrent with a safety inj.ction actuation signal.

7. Verifying the diesel generator op1ratas for at least 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />.

During the first 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> of this test, the diesel generator I-;r:tJslS'1:T I I shall be loadld tatgPta\1J' tRiA ;r: 1qwal t; :ZS&Q kw u:1ca A'uring th* r~ining 22 houn of tnis tast, the diesal generator shal 1 l'el5"00-;i&ooK1t1"'*"I b* loadid to+gNA:&IP' tjtan GP' *11~al ta 2&QQ krw. Within 5 minutas 1.--:::-:-:::i-----_;a~f~t.!.1!...r~c:~o~~~ltting this 24*hour test. erfonn S ec1 fication jJ.~.bll'.it".t-j 4.8.1.1.2.~. Th* steady state voltage and frequency sha *oe maintained at 4160: 420 volts and 60 : l.2 Hz during tnis tast.

/114Ximun1 des J f\ a. V1rif ing that the auto-conn1ct1d loads to each*.dinel generator do not exceed t 2999=~e~r P'at4~g af 27&9 le#.

100.J 411of a.s~o~-

i ~teal dur4. fiof\ 9. Verifying th~t with th* diesel gen1rator operating in a test mod* (connected to its bus), a simulated safety injection signal overrides the test moda by (1) returning the diesel gen1rator to standby operation and (2) automatically energi~

th* emergency loads with offsita power. ~

SALEM

  • UNIT 2
  • 3/4 8-4 Amendment No. 31

.,. i. ) \'

Insert 1 to p. 3/4 8-4 its maximum design load requirement and associated duration, or between 2760-2860 kw, whichever is greater.**

Insert 2 to p. 3/4 8-4

  • Surveillance testing shall be conducted in accordance with the manufacturer's recommendations regarding engine prelube, warmup and loading (unless loading times are specified in the individual Surveillance Requirements).
    • This band is meant as guidance to avoid routine overloading of the engine. Loads in excess of this band for special testing under direct monitoring of the manufacturer or momentary variations due to changing bus loads shall not invalidate the-test.

...... _ .. \

  • .. .

"

ELECTRICAL POWER SYSTEMS SURVEILLANCE REQUIREMENTS (Continued)

At least once per 10 years or after any modifications which could affect diesel generator interdependence by starting all diesel

. generators simultaneously, during shutdown, and verifying that all diesel gen~rators accelerate to at least 900 rpm in less than or equal to 10 seconds.

4.8.1.1.3 The diesel fuel oil storage and transfer system shall be demonstrated OPERABLE: *

a. At least once per 31 days by:
1. Verifying the level in each of ;he above required 20,000 gallon fuel storage tanks .
2. Verifying that both fuel transfer pumps can be started and transfer fuel from the 20,000 gallon storage tanks to the. day tanks.
b. At least once per 92 days by verffying that a sample of diesel fuel from each of the above required 20,000 gallon fuel storage tanks is within the acceptable limits specified in Table l of ASTM~97 ~

when checked for viscosityi water and sedimen ~ 7

. [;11 a. Spee;o. rlep:>r t-1 ~ ..,;f~ifl 30 "' 1

  • 4.8.1.1.4 Reports - -All diesel/Qenerator failures, valid or non-valid, shall be reported to the Commission~u~suant to Specification 6.9. Reports of diesel generator failures shall include the information recommended in Regulatory Position C.3.b of Regulatory Guide 1.108, Revision 1, August 1977. If the number of failures in the last 100 valid tests (on a per nuclear unit basis) is greater than or equal to 7, the report shall be supplemented to include the additional information recommended in Regulatory Position C.3.b of Regulatory Guide 1.108, Revision 1, August 1977.

SALEM - UNIT 2 3/4 8-5

  • TABLE 4.8-1 DIESEL GENERATOR TEST SCHEDULE Number of Failures in Last 20 Valid Tests
  • Test Frequency Less than or Equal to 1 At least once per 31 days Greater than or Equal to 2 At least once per 7 days

.*

  • Criteria for determining the number of* failures and number of valid tests shall be in accordance with Regulatory Position C.2.e of Regulatory Guide 1.108, Revision l, August 1977, where the number of tests and failures is determined on a per diesel generato*r basis. :

!.,.

SALEM

  • UNIT 2 3/4 ~-6 Amendment No. 93 L

.( '*.

ELECTRICAL POWER SYSTEMS SHUTDOWN LIMITING CONDITION FOR OPERATION 3.8.l.2 As a minimum, the following A.C. electrical power sources shall be OPERABLE:

a. One circuit between the offsite transmission network and the onsite Class lE distribution syst and bi-.--T-wo.....'I' diesel generators with:

,....lse_p_it_re.;_f,_e-4,.-J':"'";-"Jc-:--p&irk--:-~~..., l.

Separate ~tanks containing a minimum volume of 130 gallons of fuel,~

z.* *A conunon fuel storage system containing a minimum volume of 20,000 gallons of fuel, and

3. A fuel *transfer pump.

APPLICABILITY: MODES 5 and 6.

ACTION:

With less than the above minimum required A.C. electrical power sources OPERABLE, suspend all operations involving CORE ALTERATIONS or positive reac-tivity changes until the minimum required A.C. electrical *power sources are restored to OPERABLE status.

  • SURVEILLANCE REQUIREMENTS 4.8.1.Z~The above required A.C. electrical power sources shall be demonstrated OPERABLE by the pe ormance of each of the Surveillance Requirements of 4.8.1.1.1, . . (except fo~ requirement1\4.8.l.l.2a~fl>4.8.l.l.31.except for requirement 4. 8.1. 1. :!*~and 4. 8.1.1.~ [!fl - @ kl

~. ~.{,(. 'J.. u..r I -

+lie 6 y;i& hrofl i ~+~on ancl ~o -1nwfe rwn

~Ser+ I }7 SALEM - UNIT 2 3/4 8-7 L

  • Insert 1 to p. 3/4 8-7
  • The demonstration of diesel generator operability per this Surveillance Requirement is only considered a valid test (for the purpose of reducing testing frequency in accordance with Table 4.8-1) if the requirements of surveillance 4.8.1.1.2.a.2 are satisfied. However, should the diesel fail during testing per this Surveillance Requirement, it shall be considered a valid_test and failure and the additional actions prescribed by Table 4.8-1 shall apply.

3/4,8 ELECTR.ICAL PQWP SYSTEMS BASES

.....

AND

  • 3/4,8,1 3/4.8.2 A.C, SOt{RCES ANJ) ONSITE POWEi DISIRIBtJIION SYSTEM$

Th* OPDABILITY of the A.C. and D.C. power sources and associated distribution systems during operation ensures that sufficient power will be available to supply th* safety related.*quipment required for l) the safe shutdown. of th* facility, and 2) the mitigation and control of accident conditions within th* facility. Th* minimum specified independent and redunda.nc A.C. and D.C. powar sources and distribution systems satisfy the requirements of Genaral Design Cr!terion 17 of Appandix *A* to 10 CFR. Part SO, Th* ACTION requirement~ specified for th* levals of degradation of the powar sources provide rastriction upon continued facility oparation commansurate with th* leval of degradation. Th* OPERABILITY of th* power sources are consistent with th* initial condition assumption.s of the accident analysas and are based upon maintaining at least one redundant sat of onsice A.C. and D.C. power sources and associated distribution system* OPERABLE during accident conditions coincident with an asswaad lo** of offsit* power and singl* failure of th* othar onsit* A.C. source.

Th* OPERABILITY of th* minimwa spacifiad A.C. and'D.C. power sources and associated distribution systems during shutdown and refualing ensures that 1) th* facility can be maintained in th* shutdown or refueling condition for extended time period.I, and 2) sufficient instrumentation and control capability is available for monitoring and maintaining th* unit statu..

The Surveillanc~uirements for demonstrating the OPERABILITY of the diesel ganarators -ts! basad upon th* recommendations of R*gulatory Guide 1.9,

  • salaction of Di*s*l Generator Set Capacity for Standby Power Supplies,~

March 10, 197 , an Guida 1.108, *Periodic Testing Diesal Generator Units Used as Onsit* Electric Powar Systems at Nuclear Power Plants,* Revision l, August_ 1977.

3/4,8.3 EL!CIRICAL EQUIPMENT PRQTECTIVE D!Y!CES Containment alactrical p*n*trations and penetration conductors are protected by either deanargizing circuit* not required during reactor operation or by demonstrating th* OPERABILITY of primary and backup overcurrent protection circuit breakers during periodic surveillance.

Th* surveillance frequency applicable co moided case circuit breakers and lower voltage circuit breakers provides assurance of breaker reliability by testing ac least one representativ* sampl* of each manufacturer's brand of molded ca** and lower voltage circuit breakars. Each manufacturer's molded casa circuit br.eak*r* and lowar voltage circuit breakars are grouped into representaciv* samples which are than tested on & rotating basis to ensure that all br.,eakers ar* tested. If a wide varie~ exists within any manufacturer's brand of molded case or lowar v1&ltag* circuit breakers, it is necessary to furth*r divide chat manufacturar's braakers into groups and treat each group as a separate type of breaker for survaillance purposes .

    • ,.

SALEM - UNIT 2 B 3/4 8-l Amendment No.a2

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