ML20008F625
| ML20008F625 | |
| Person / Time | |
|---|---|
| Site: | Grand Gulf  |
| Issue date: | 04/15/1981 |
| From: | MISSISSIPPI POWER & LIGHT CO. |
| To: | |
| Shared Package | |
| ML20003F494 | List:
|
| References | |
| 05-S-01-EP-1, 5-S-1-EP-1, NUDOCS 8104210400 | |
| Download: ML20008F625 (5) | |
Text
{{#Wiki_filter:~ e '.Tu"' T e'w". a..'.". - v". l .T V...G T ".C V. ...OCE.'., U'..' ~~ ~ .. p'!D "a'y T PLANT OPERATIONS M;SUAL OV Volume 5 05-5-01-EP-1 Section 1 Revision C Date: EMERGENCY PROCEDURE ' LEVEL CONTROL SAFETY RELATED Date Prepared: Reviewed: Date Technical Review Reviewed: Date Operations Superintendent 1 Date 1 Reviewed: Nuclear Plant Quality Superintendent I Date r l Approved: Assistant Plant Manager PSRC: Date 1 List of Effective Pages : Pace: Revisicn : 1-3 Rev. C Attachment Rev. C 8104210 % ~
~ GFJSD GULF NUCLEAR STATION EMERGENCY PROCEDUP.I UITEE: Level Control NO. 0 5-S EP-1 REV C PAGE cf 1 3 ~ 1.0 PURPOSE The purpose of this procedure is to restore and stabilize RPV water level above the top of the active fuel (TAF). 2.0 ENTRY CONDITIONS Entry conditions are'any of the following: 2.1 RPV water level below +10" i 2.2 Drywell pressure above +1.75psig ~ ..2.3 Group I isolation a. Isolation signals are: -150" RPV water level 3 x N bkg. Main Steam line high radiation 203psid Main Steam line flow Later OF Main Steam line high space temperature 23 inches Hg Condenser low vacuum 850psig Main Steam line pressure at turbine inlet low pressure 3.0 OPERATOR ACTIONS 3.1 For each entry condition, confirm or initiate all of the following: f[7 3.1.1 RPh water level less than +10" initiates : a. Reactor Scram ((7 3.1.2 Drywell pressure greater than +1.75psig initiates : a. Reactor Scram b. Diesel Generators start c. ECCS initiation for HPCS, LPCS and LPCI 1 ((7 3.1.3 Group I Isolation i.-itiates: a. 53IV closure l b. Main Steam line drains closure f[7 3.2 Enter CNEP 05-1-02-I-l (Reactor Scram) and execute con-currently with this procedure. CAUTION Avoid RPV High Water Level Trip (+52") of RFPT's, RCIC, l and HPCS injection valve (E22-F004). I l
w GRAND GUI.F NUCLEAR STATICH EMERGENCY PRCCEDURE UITLE: Level Control NO. 0 5-5 EP-1 REV.C PAGE 2 cf 2 NOTE The sysrems listad in paragraph 3.3. are listed in order or expected availability and ease of utiliza-tien frcm an initial p'ower operating condition. The choice of using the following systems may vary with plant conditions. It is preferred that the minimum number of systems be used to accomplish the water level restoration. 2:7 3.3 Restore and maintain 'RPv water level between +10" and +5 2" with the following systems: SYSTEM PRESSURE RANGES ((7 3.3.1 Feedwater (preferred) (1103 - O psig) z7 3.2.2 Cao (1103 - O psig) f]7 3.3.3 RCIC (1103 - 50 psig) f]7 3.3.4 HPCS (1103 - O psig) ((7 3.3.5 LPCS (500 - O psig) f:7 3.3.6 Condensate sooster (435 - O psig) ((7 3.3.7 Condensate (270 - O psig) ((7 3.3.8.,LPCI (310 - O psig) ~/7 3.4 If RPV water level cannot be restored and maintained above +10", ~~ maintain RPV water level above TAF. i l NOTE 1 l TAF = 0" as read en fuel zone instrumentation: (1) P601 - RHR Section - S21-R615 1 (2) P601 - RCIC Section - 321-R610 f:7 3.5 If SRv's are cycling, manually open one SRv and reduce RPv pressure to approximately 883 psig (150 psig below the lowest SRV lif t l pressure of 1033 psig after low low set 29 actuatedl. l l f_/ 3.5.1 If depressurization must be repeated to prevent SRV cycling l alternate SRV to equalize suppressicn pool heating using l Figure A as a guide. l 1 l l SEE FIGURE A - NEXT PAGE .t; i e 1 1 -
o GEAND GULF NUCI.ZAR STATICN EMERGENCY PROCEDURE UI7EE* Level Control NO. 05-S-01-EP-1 PIV.C PAGE 3 Of 3 F0f1D 00 F047A FC4]M 344 160 F04jt F0 4 *,0 O 328' A F051A 48* D-CREEN A-EED F04{D 312 f, reetA I C=CREEN 3*8ED ro s
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'~ O F041r 4 2560 C-SLLT F0473 POS 340o 3-GREEN g D-RED FOSIC C-RED 1360 F0413 a 200* 7,47; FO$la w41C 1520 1840 1680 - ADS VALVE 3 the letter follo.ed DF a color designates the pen color en suppression pool temperature raccreare M71-6065A, S. C, D. on panet lE13-r$73. FIGUPI A 6 3.6 If RPV water level cannot be' determined or maintained above TAF, proceed to EP-4 (Level Restoration). 6 3.7 If the RPV water level has stabili::ed, less than +10" proceed to EP-2JCooldown). 6 3.8 If the RPV water level has stabilized greater than +10", proceed to the applicable IOI, as dictated by plant conditions and determined by the Shift Supervisor. O
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