ML20236X007

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Proposed Tech Specs,Revising Acceptance Criteria of SRs 3.8.1.7,3.8.1.12,3.8.1.15 & 3.8.1.20
ML20236X007
Person / Time
Site: Clinton Constellation icon.png
Issue date: 07/31/1998
From:
ILLINOIS POWER CO.
To:
Shared Package
ML20236W988 List:
References
NUDOCS 9808070046
Download: ML20236X007 (11)
v • d • e


Text

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t Attachment 3 to U-603043 LS-98-005 Page 1 of 5 Marked-Up Pages from the Technical Specifications 9808070046 980731"~

PDR ADOCK 05000461 P PDR,

AC Sources-Operating k 3.8.1 1 l

SURVEILLANCE REQUIREMENTS (continued)

SURVEILLANCE FREdUENCY l

SR 3.8.1.7 A(a_' ["J

.------------------NOTE------------------ l All DG starts may be preceded by an engine '

prelube period. '

Verify each DG star s fr tandby 184 days condition and achieve s 12 seconds, # fgg4 a 3svoV voltage h 3870 V and s 45 0 V and frequency r f",D'*3 a 58.8 Hz and s 61.2 Hz.

h SD.B Ha; anel 1 h. %1L *sAste. )

< J SR 3.8.1.8 ------------------NOTE--------------------

This Surveillance shall not be performed in MODE 1 or 2. However, credit may be taken for unplanned events that sat-isfy this SR. -

l Verify automatic and manual transfer of 18 months I unit power supply from the normal offsite circuit to the alternate offsite circuit.

i SR 3.8.1.9 -----------------NOTES--------------------

1. This Surveillance shall not be performed in MODE 1 or 2. However, l credit may be taken for unplanned events that satisfy this SR.
2. If performed with DG synchronized with offsite power, it shall be performed at a power factor s 0.9.

Verify each DG rejec'ts a load greater than 18 months or equal to its associated single largest post accident load and following load rejection, the engine speed is maintained less than nominal plus 75% of the difference between nominal speed and the overspeed trip setpoint or 15% above nominal, whichever is lower.

(continued)

CLINTON 3.8-6 Amendment No. 110

()

gg gources-@perating

. 3.8.1  !

SURVEILLANCE REQUIREMENTS (continued)

. SURVEILLANCE FREQUENCY SR 3.8.1.12 -------------------NOTES-------------------

1. All DG starts may be preceded by an ,

engine prelube period. I

2. This Surveillance shall not be performed in MODE.1 or 2. However, credit may be taken for unplanned events that satisfy this SR. ,

Verify on an actual or' simulated Emergency 18 months l Core Cooling System (ECCS) initiation signal each DG auto-starts from standby condition and:  !

a. In s 12 seconds after auto-start and 1 during tests. achieves voltage a 3870 gg {

V and A458%jg; L{* W*"'Y >b,9 '

b. Iyt s 12 ng t conds_hterauth-starthnD s_,fjthievesgrequency [s,bda s44' " S 2 58.8 Hz and s 61.2 Hz; ana
c. Operates for a 5 minutes. (I>45803610 V an AV and i )

SR ,3.8.1.13 ------------------NOTE-------------------- '

This Surveillance shall not be performed in HODE 1, 2, or 3. However, credit may be taken for unplanned events that satisfy this SR.

Verify each DG's automatic trips are 18 months bypassed on an actual or simulated ECCS initiation signal except:

a. Engine overspeed;
b. Generator differential current; and
c. Overcrank for OG 1A and DG 18.  !

l I

l' (continued)

CLINTON 3.8-9 Amendment No.110 l

AC Sources-0perating

, 3.8.1 SURVEILLANCE' REQUIREMENTS (continued)

SURVEILLANCE FREQUENCY

,-)

SR 3.8.1.14 -------------------NOTES-------------------

1. Momentary transients outside the load

. and power factor ranges do not .

invalidate this test.

2. This Surveillance shall not be performed in MODE 1 or 2. However, credit may be taken for unplanned events that satisfy this SR.

Verify each DG operating at a power factor 18 months

s 0.9 operates for a 24 hour2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />s
a. For 2 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> loaded a 4256 kW for DG I 1A, a 4263 kW for DG IB, and a 2420 kW  !

for DG IC; and

b. For the remaining hours of the test loaded a 3869 kW for DG 1A, a 3875 kW for DG IB, and a 2200 kW for DG IC.

SR 3.8.1.15 ------------------NOTES------------------- '

l. This Surveillance shall be performed within 5 minutes of shutting down the {

DG after the DG has operated a 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> i loaded a 3869 kW for DG 1A, a 3875 kW for DG IB, ar.d a 2200'kW for DG IC.

y" and frgon9 load range do not invalidate this

  • A' h 58.8 Hz.; anj test. i l
2. All DG starts may be preceded by an (b* 3 d*p") engine prelube period.

Verify each DG starts and achieve in 18 months s 12 seconds,4 voltage a 3870 V and 80 V a'nd frequency a 58.8 Hz and s 61.2 Hz.

(continued)

CLINTON 3.8-10 Amendment'No. 110 0

, AC Sources-0perating 3 . 8.1 .

SURVEILLANCE REQUIREMENTS (continued)

SURVEILLANCE FREQUENCY kc -)

SR 3.8.1.20 -------------------NOTE--------------------

r* - 7 ,

All DG starts may be preceded by an engine prelube period.

i

. A. Inj Verify, when started simultaneously om 10 years standby condition, each DG achieve , n s 12 seconds avoltage a 3870 V and 80 V

! and frequencf a 58.8 Hz and s 61.2 Hz.

vehge h 387o V a.aJ fre goanc3 B 58 8 Hm; and)

/

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t s. s4 u. >

O s

l l

i CLINTON 3.8-14 Amendment No.110 0

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  • Attachment 4 to U-603043 LS-98-005 Page 1 of 6 f

Attached Marked-Up Pages of the Technical Specification Bases 1

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1 1

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. AC Sources-0perating 8 3.8.1 BASES ,

{ ]

SURVEILLANCE SR 3.8.1.2 and SR 3.8.1.7 (continued)  ;

REQUIREMENTS

{

To minimize the wear on moving parts that do not get  !

lubricated when the engine is not running, these SRs have been modified by Notes (the Note for SR 3.8.1.7 and Note 2 s

for SR 3.8.1.2) to indicate that all DG starts for these i Surveillance may be preceded by an engine prelube period and followed by a warmup period prior to loading. l For the purposes of this testing, the DGs are started from standby conditions. Standby conditions mean that the lube ,

oil is heated by the jacket water and continuously I circulated through a portion of the system as recommended by the vendor. Engine jacket water is heated by an immersion heater and circulates through the system by natural circulation. This allowance is not intended to impose a maximum limit on engine temperatures. For the purposes of j these SRs, the DG may be started using a manual start j signal, a simulated loss of offsite power test signal by j itself, a simulated loss of offsite power test signzl in j conjunction with an ECCS actuation test signal, or an ECCS l actuation test signal by itself. '

In order to reduce stress and wear on diesel engines, the manufacturer recommends that the starting speed of DGs be (  !

limited, that warmup be limited to this lower speed, and )

that DGs be gradually accelerated to synchronous speed prior to loading. These start procedures are the intent of Note 3, which i o ly applicable when such procedures are used. g ,p -

SR 3.8.1.7 requires that, at a 184 day Frequency, the DG starts from standby conditions and achieves reouired voltage and frequency within 12 seconds. /Be DG's ability to (maintain the required voltage and freqJency is tested by Qhose SRs which require DG loading.f The 12 second start requirement supports Ine assumptions in the design basis LOCA analysis (Ref. 5). The 12 second start requirement may not be applicable to SR 3.8.1.2 when a modified start procedure sa(see Note above described 3 of SR 3.8.1.2),

is used.

If a modified start is not used, the 12 second start requirement of SR 3.8.1.7 applies. Since SR 3.8.1.7 does raquire a 12 second start, it is more restrictive than SR 3.8.1.2, and it may be performed in lieu of SR 3.8.1.2.

This is the intent of Note 1 of SR 3.8.1.2. Similarly, the performance of SR 3.8.1.12 or SR 3.8.1.19 also satisfies the requirements of SR 3.8.1.2 and SR 3.8.1.7.

N* "

(continued)

.k%.

i CLINTON B 3.8-14 Revision No. 3-1 w wann

t INSERT 1 In addition to the SR requirements, the time for the DG to reach steidy state operation, unless the modified DG start method is employed, is periodically monitored and the trend evaluated to identify degradation of governor and voltage regulator perfonnance.

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AC Sources-Operating l B 3.8.1 i ,8ASES,

{ j SURVEILLANCE SR 3.8.1.11 (continued)

REQUIREMENTS J is that performing the Surveillance.would remove a required )'

offsite circuit from service, perturb the electrical distribution system, and challenge plant safety systems.

' Credit may be taken for unplanned events that satisfy this SR.- Examples of unplanned events may include:

1) Unexpected operational events which.cause the equipment to perform the function specified by this l Surveillance, for which adequate documentation of the required performance is available; and
2) Post maintenance testing that requires performance of this Surveillance in order to restore the component to l OPERABLE, provided the maintenance was required, or performed in conjunction with maintenance required to maintain OPERABILITY or reliability.

SR 3.8.1.12 This Surveillance demonstrates that the DG automatically i starts and achieves the required voltage and frequency within the specified time (12 seconds) from the design basis (-

actuation signal (LOCA signal) and operates for a 5 minutes.

The 5 minute aeriod provides sufficient time to demonstrate stability. / Tie 's ability o mainta tne requ yed hage and freque is teste by those Rswhichgequir D loadin h -

The Frequency of 18 months takes into consideration plant conditions required to perform the Surveillance and is intended to be consistent with the expected fuel cycle lengt!:s. Operating experience has shown that these components usually pass the SR when performed at the 18 month Frequency. Therefore, the Frequency was concluded l to be acceptable-from a reliability standpoint.

This SR is modified by two Notes. The reason for Note 1 is to minimize weer and tear on the DGs during testing. For the purpose of this testing, the DGs must be started from standby conditions. Standby conditions mean that the lube oil is heated by the jacket water and continuously circulated through c portion of the system as recommended by the vendor. Engine jacket water is heated by an immersion heater and circulates through the system by natural circulation. This allowance is not intended to impose a (continued)

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CLINTON B 3.8-22 Revision No. 3-1 L - - - - - - - - - - _ - - - - - - - - - - _ _ - - _ - _ _ _ _ - - - _

AC Sources-Operating 1

, B 3.8.1 BASES t

SURVEILLANCE SR 3.8.1.14 (continued) i REQUIREMENTS This Surveillance is modified by two Notes. Note I states that momentary transients due to changing bus loads do not l invalidate this test. Similarly, momentary power factor transients above the limit do not invalidate the test. The )

reason for Note 2 is that during operation with the ~ reactor 1 critical, performance of this SR could cause perturbations {

to the electrical distribution systems that would challenge continued steady state operation and, as a result, plant safety systems. Credit may be taken for unplanned events that satisfy this SR. Examples of unplanned events may i include:

1) Unexpected operational events which cause the equipment to perform the function specified by this Surveillance, for which adequate documentation of the required performance is wailable; and
2) Post maintenance testing that requires performance of this Surveillance in order to restore the component to OPERABLE, provided the maintenance was required, or 1 performed in conjunction with maintenance required to maintain OPERABILITY or reliability.

SR 3.8.1.15 *

' This Surveillance demonstrates that the diesel engine can restart from a hot condition, such as subsequent to shutdown from normal Surveillance, and achieve the re.1uired voltage and frequency within 12 seconds. The 12 second time is derived from the requirements of the accident analysis' to respond to a desian basis large break LOCAJThe(DG's \ ]

Aility tAmaintain\the regtr(red voltage a fregogncy 4 )

(tested by those SRs hhich reakire DG b adin The 18 month Frequency is consistent with the recommendations of Regulatory Guide 1.108 (Ref. 9),

paragraph 2.a.(5).

This SR has been modified by two Notes. Note 1 ensures that the test is performed with the diesel sufficiently hot. The requirement that the diesel has operated for at least I hour at full load conditions prior to perfonaance of this (continued)

CLINTON 8 3.8-25 Revision No. 3-1 i

' AC Sources-Operating 8 3.8.1

, BASES,

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SURVEILLANCE SR 3.8.1.19 (continued)

REQUIREMENTS The Frequency of 18 months taes into consideration plant conditions required to perform the Surveillance and is intended to be consistent with an expected fuel cycle length of 18 months.

This SR is modified by two Notes. . The reason for Note 1 is to minimize wear and tear on the DGs during testing. For the purpose of this testing, the DGs must be started from standby conditions. Standby conditions mean that the lube oil is heated by the jacket water and continuously circulatt.J through a portion of the system as reconnenued by the vendor. Engine jacket water is heated by an immersion heater and circulates through the system by natural circulation. This allowance is not intended to impose a maximum limit on engine temperatures. The reason for Note ?

is that performing the Surveillance would remove a required offsite circuit from service, perturb the electrical distribution system, and challenge plant safety systems.

Credit may be taken for unplanned events that satisfy this SR. Examples of unplanned events may include:

1) Unexpected operational events which cause the b equipment to perform the function specified by this Surveillance, for which adequate documentation of the required performance is available; and
2) Post maintenance testing that requires performance of this Surveillance in order to restore the component to OPERABLE, provided the maintenance was required, or performed in conjunction with maintenance required to maintain OPERABILITY or reliability.

SR 3.8.1.20 This Surveillance is performed with the plant shut down and demonstrates that the DG starting independence has not been compromised. Also, this Surveillance demonstrates that each engine can achieve proper speed within the specified time when the DGs are started simultaneous 1vdThe DG's\abilit 7 maintainy.ne requited voltag( and frebency is tNsted b ]

th e SRs whhh requir\0G loadihgy i

i The 10 year Frequency is consistent with the recommendations of Regulatory Guide 1.108 (kef. 9).

(continued)

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CLINTON 8 3.8-30 l

Revision No. 3-1 1

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