ML20009D188

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Level Restoration Emergency Procedure.
ML20009D188
Person / Time
Site: Shoreham File:Long Island Lighting Company icon.png
Issue date: 07/10/1981
From:
LONG ISLAND LIGHTING CO.
To:
Shared Package
ML20009D181 List:
References
29.023.04-DRFT, NUDOCS 8107230264
Download: ML20009D188 (6)


Text

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ha',mi t'cdd:-' SP Numbar 29.023.04 (Szeticn Hetd)

__ Approved: Revision C (Plant Manager)

Effective Date LEVEL RESTORATION EMERGENCY PROCEDURE d6 h5

-1.0 ~ PURPOSE The purpose-of this procedure is to restore RPV w ter level to above top of

' active fuel.

2.0 ENTRY CONDITIONS Enter this procedure from 29.923.91 (Level Control) or 29.923.92 (Cooldown) when RPV. water level cannot-be maintained above tcp of activel fuel (TAF).

NOTE TAF = +6" as-read on fuel zone instrumentation:

-3.0 OPERATOR ACTIONS .

3.1 Lineup for injection and start pumps in two or more of the

- following normal injection subsystems:

3.1.1 Condensate 3.1.2. CS A ,

3.1.3 'CS'B 3.1.4 LPCI A 3.1.5 LPCI B 3.2 If-less than two normal injection subsystems (Paragraph 3.1) en

.be lined up, commence lining up as many of the Alowing

. alternate injection subsystems as possible:

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PDR ADOCK 05000322. .

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, 3.2.1 Service water / rec ~ ire loop ultimate cooling water

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crossties valves IP41-MOV-033A, MOV-0335. MOV-033C, and MOV-033D.

3.2.2 ECCS connections from the Condensate Transfer System 3.2.3 SLC (test tank) per SP 2?.123.01, Standby Liquid Control 3.2.4 SLC (boron task) per SP 23.123.91, Standby Liquid Control CAUTION IF RPV water level cannot be determined and at least one subsystem with at least one pump running is:

1. lined up for injection proceed to 29.023 05 (Rapid RPV Depressurization)
2. not lined up for injection proceed to Step 3.7.4, (Core Cooling Wirkout Injection).

3.3 Monitor RPV pressu.e and water level -

3.3.1 Continue in this procedure at the step indicated in the following table:

NOTE If n_ . ..se the RPV water level tre.nd reverres or RPV pressure changes region, return to step 3~.a.1.

Table 1 RPV PRESSURE REGION 333 333 to 100 100 HIGH INTERMEDIATE LOW RPV LVL INC. 3.4 3.5 3.6 RPV LVL DEC. 3.7 3.8 3.4 RPV level increasing and RPV pressure creater than 333 psig (High Region).

3.4.1 ENTER SP29 023.91, Level Control at Step 3.3.

SP 29.023.04 Rev. C

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3.5 .RPV leval increasing end RPV pressure batween 333 and 100 psig (intermediata ragion).

CAUTION Do not depressurize the RPV below 100 psig unless motor driven pumps . sufficient to maintain RPV water level are running and available for injection.-

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.3.5.1 If. HPCI and RCIC are available and RPV water level increases to +12.5", proceed to SP29.923 91 (Level Control) Step 3.3.

' 3. 5. 2 ' If HPCI and RCIC are not available and RPV pressure is increasing, proceed to SP29.923 95 (Rapid RPV-Depressurization).

.3.5.3' If HPCI and RCIC are not available and RPV pressure is not increasing, proceed to SP29 923.91 (Level Control) step 3.3. ,

3.6 1RPV level increasing and RPV pressure 100 psig (low region).

. 3.6.1 Determine RPV pressure.

3.6.2- :If lev pressure is increasing, proceed to SP29.923.95

(Rapid RPV Depressurization).

3.6.3 If RPV pressure is not~ increasing, proceed to SP29 923 91, (Level Control) step 3.3.

L 3. 7. RPV level decreasing and RPV pressure greater than 333 psig (Intermediate /High region).-

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3.7.1 5 If HPCI and'RCIC are not operating, restart HPCI per SP 23.292 91, High Pressure Coolant Injection i

and/or RCIC per SP'23.119 91, Reactor Core Isolation

! Cooling (RCIC) System.

l i 3.7.2 If CRD is not operating but at least 2 injection

! subsystems are lined up for injection with pumps running,

- proceed to SP29.923 95 (Rapid RPV Depressurization).

3.7.3 If CRD is not operating and no normal injection subsystem

"' is lined up for injection with at least one pump running, i

start pumps in alternate injection subsystems which are lined up for injection.

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~3.7.4 When RPV , water level drops to +6" on the fuel zone instrumentation (TAF), perform the following.

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l SP 29 923.b. Aev. C

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l 3.7,4.1 If CRD 'is not cparating and na normal inj2ctica er alternrte injsetion sub2ystem is lintd up for-injection with at least one pump running, I perforn core cooling without injection as follows.

' 3.7.4.1.1 When RPV water level drops to later (2/3 core height) or if RPV water level cannot be determined, open I one SRV. j 3.7.4.1.2 As RPV pressure decreases, open additional SRV's as required by the following table. I TOTAL NUMBER OF RPV PRESSURE (psig) SRV's OPEN above 899 1 between 800 and 599 . 2 between 599 and 350 3 between 359 and 259 4 between 250 and 175 5 L between 175 and 125 6 below 125 7

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. 3.7.4.1.3 When a normal injection or alternate injection subsystem is lined up for injection with at least one pump running . proceed to SP 29.923 95 (Rapid RPV Depressurization).

l 3.7.4.2- If the-RPV water level drops to +6" on the fuel-zone indicator (TA?) and CRD is operating or a normal injection system is lined up for injection with a pump running or an alternate injection system is lined up for injection with pump running proceed to SP29 923 95 (Rapid RPV Depressurization).,

s SP 29.923 94 Rev. C

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. 3.8 -RPV lev 21 decrenming and RPV prascura lema then 100 psig (low rsginn).-

3.8.1 If no normal injection system is lined up for injection with at least one punp running, start pumps in alternate

' injection subsystems which are lined up for injection and perform the following.

3.8.1.1 If RPV pressure is increasing, proceed to SP29 923.95 (Rapid RPV Depressurizat h n).

'3.8.1.2 If RPV' pressure is aot increasing and RPV water level drops to +6" on fuel zone instrumentation (TAF), perform Corg Cooling Without Level Restoration as follows.

3.8.1.2.1 Open all ADS valves.

CAUTION Observe NPSH requirements for the core spray pumps as indicated, when taking a suction on ths Suppression Pool.

SUPPRESSION POOL PUMPS MAXIMUM TEMPERATURE MINIMUM LEVEL

CS Later Later NOTE 1Cooldown ratea greater than 199'F/Hr may be required'to L accomplish this~ step.

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3.8.1.2.2 If all of the ADS valves cannot be

, opened, open other SRV's until 7 valves are open.

3.8.1.2.3 Operate Core Spray subsystems with suction from the Suppression pool.

3.8.1.2.4 When at least one core spray subsystem is operating with suction from ti.e Suppression Pool and RPV l

pressure is less than 299 psig, L terminate injection into the RPV from sources external to the primary containment.

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' SP 29.923.94 Rev. C

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3.8.1.2.5 .If RPV water 1sv21 is restored to

+6" (TAF) on the fuel zone instrumentation, proceed to SP 29.923.91 (Level Control) at paragraph 3.3.

'49 ' REFERENCES 4.1 'SP 29 923 95 Rapid RPV Depressurization 4.2 SP'29.923 91 Level Control-4.3 SP 23.292 91 High Pressure Coolant Injection 4.4 SP 23.119 91 Reactor Core Isolation Cooling (RCIC) System

-4.5 SP 23.196.91 Control Rod Drive 14.6 SP 29.923.99 RPV Flooding 4.7 SP 23.293.91 Core Spray System 4.8 SP 23.123.91 Standby Liquid Control 4.9 SP 23.294.91 Low Pressure Coolant-Injection 4.19' SP 23.193 91 Condensate System 4.11 SP 23.195 91 Condensate Storage and Transfer System 4.12 SP 23.199.91 Feedwater System f

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I l SP 29 923 94 Rev.C[

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