ML19275A872

Proposed Change to Tech Specs for Engineered Safety Feature Actuation Sys Instrumentation

ML19275A872
Person / Time
Site:	North Anna
Issue date:	10/15/1979
From:	VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.)
To:
Shared Package
ML19275A871	List: ML19275A870 ML19275A872
References
NUDOCS 7910190399
Download: ML19275A872 (5)

Text

~

TAllLE 3.3-3 ,

S ENGIf!EERED SAFETi FEAT!!RE ACTllATI0tl SYSTEM IllSTRur{fuAT10t[

E .

lililillllli M TOTAL 110. CilAlllit.l.S (:llAlllliIS APPL 1CADLE OPlHAllli, ACTI0ft 5 Ful!CTIONAL UNIT OF CllAtillELS TO 'IRIP MODES il i

i i

c: 1. SAFETY IrlJECTION, TURBillE TRIP AtlD

}

FEEDWATER ISOLAT10'4 1,2,3,4 iJ l

a. Manual Initiation 2 1 2

b. Automatic Actuation 2 1 2 1,2,3,4 13

c. Containment 3 2 2 1,2,3 14 Pressure-liigh < 1 y + .'l 1, 2, 3 14 I

d. Pressurizer I w Pressure - Low-Low 3 2 2 2

't s

c. Dif ferential

' \ 1,2,3 Pressure Between Steam Lines - liigh Three Loops 3/ steam line 2/ steam line 2/ steam line 3 14 Operating twice and 1/3 steam lines 2/ operating 15 Two Loops 3/ opera ting 2 ### /steam l Operating 1 steam line line twice stear.. line 4

" in either j 3 m.

operating e steam line .

9 o, '

3f C 1, 2, 3

1. 1. t C r0 f. Steam Flow in Two I W #

~

Steam Lines-liigh -

2 -

PER brain?.l r

5n d TABl.E3.3-3(Continue <f),

ENGINEEllED SAFETY FEATullE lilli.llt.UCQ

' All.0WABLE SETP01flT VALUES FullCTION E DESIGNATION CONDIT1011

-i tilth 2 of 3 pressurizar 2000 psi 0 < 2010 psig P-ll prevents manual block of

- P-ll .

safety injection actuation on pressure channels abovo low- low pressurizer pressure.

setpoint With 2 of 3 pressurizer 1980 psig '< 1990 psig P-ll allows manual block of safety injection actuation on pressure channels below low- low pressurizer pressure.

setpoint

'u \

543*F (flominal) < P S*F P-12 p.avents manual block of 3 P-12 With 2 of 3 T schannels safety injection actuadon on I'm above setpoint high steam line flow w

543*F (llaminal) > 541 F P-12 allows manual block of With 2 of 3 T V9 channels - - safety. injection actuation on below setpoint high steam line flow _

I

,l

• m Q -

ff N

4 N

(e g

m TABLE 3.3-4

--e . ,

x R ENGillEERr0 SAFETY FEATURE At.i'Jf,TI6il SYSTff! IllSillllllllll ATiull TitIP SETPolllTS 5

• TRIPSETPolil[ ALLOWADLE VALUES FurlCTI0flAL UtlIT ri

- 1. SAFETY INJECTI0ft, TURBillE TRIP Afl0 FEEDilATER ISOLAT!0ii

a. !1anual Initiation flot Applicahic flot Applicable

b. Automatic Actuation Logic flot Applicable flot Applicable

c. Containment Pressure--liigh 1 17 psia ,

1 19 psia

d. Pressurizer Pressure -- Low-Low 1 1765 psig 1 1755 psig u

2

e. Differential Pressure 5 100 psi 1 112 psi DetweenSteamLines--Ilighg

f. Steam Flow in Two Steam Lines-- < A functic defined as < A function defined as

--Low-Low follows: a ..p correspond follows: a Ap corresponding liigh Coincident or Steam with T. Eow Line Pressured ing to 40% of full steam to 44% of full steam flow flow between 0% and 20% between 0% and 20% load and load and then a Ap increas- then'a Ap increasing linear-ing linearly to a Ap corre- ly to a Ap corresponding to sponding '_o 110% of full 111.5% of full steam flow steam flow at full load at full load T T

]

g, 1 543"F 1aN0psigsteamline 3 541 F 1aN0psigsteamline

' .- !t pressure pressure N

A V ~~

e h

1 TABLE 3.3-5 (Continued)

ENGIllEERED SAFETY FEATURES RESP 0tiSE TIMES

~

IrlITIATING SIGilAL AND FUtlCTION RESP 0tlSE TIME IN SEC0tt0S

3. Pressurizer Pressure--tw-t m

a. Safety Injection (ECCS) 1 27.0*/13.0#

b. Reactor Trip (from SI) 1 3.0

c. Feedwater Isolation 1 8.0

d. Centairment Isolation-Phase "A" 1 18.0#

e. Auxiliarf Feecwater Pumps 1 60.0

f. Essential Sartice Water System Not Applicable

4. Dif=enntial Pressure Between Steam Lines-Hioh

a. Safety Injection (ECCS). 1 13.0#/23.0!#

b. Reactor Trip (from SI) 1 3.0

. c. Feedwater Isolation 10 8

d. Contain ent Isolation-Phase "A" 1 18.0!/28.0##

e. Auxiliary Feedwater Pumps < 60,0

f. Essential Service Water System Not Applicable

5. Steam Flcw in Tio Steam Lines - ilich Coincident

' ~ '

witn I gg --Low-Low

a. Safety Injection (ECCS) 1 15.0#/25.0!#

b. Reactor Trip (from SI) 10 5

c. Feedwater Isolation 1 10.0

d. Containment Isolation-Phase "A" 1 20.0#/30.0## ;

e. Auxiliary Feeddater pumps < 60.0

f. Essential Service Water System flot Applicable

~

g. Steam Line Isolation < 10.0 '

s NORTH ANNA - UtlIT 1 3/4 3-28 1185 2,44

n TABl.E 4.3-2 9

a E ENGINEERED SAFETY FEATURE ACTUATI'0!l SYSl((I_lJui[lt,1.j,lRjj] ATI0rl 7: SURVEILLAllCE ilf.EREMI flTS_

s

" CilAllNEL MODES Ill WillCH

' SURVEILLAllCE CilANNEL CllAllfl[L l'UllCTIONAL FUNCTI0llAL UNIT CllECK cal.IllRATION TEST REQUIRED

-l

~ 1. SAFETY INJECTION, TUR0lilE TRIP AND FELDWATER ISOLATION N.A. 1, 2, 3, 4

a. lianual Initiation N.A. 11 ( 1 )

Automatic Actuation Logic N.A. N.A. M(2) 1, 2, 3, 4 b.

Containment Pressure-liigh 1, 2. 3

c. S R 14 5 d. Pressurizer Pressure--Low -Low S R M 1,2,3 i 's

e. Differential Pressure S R M 1, 2, 3 Between Steam Lines--High

f. Steam flow in Two Steam S

' R H 1, 7.: 3 Lines--liigh coincident with -

T --Low.or Steam Line l

Pi dsure--Low

2. CONTAINMENT SPRAY ,

co N.A. fl. A. M(1) 1, 2, 3, 4 F' a. Manual' Initiagon ,

$tn

b. Automatic Actuation Logic fl. A. fl . A . M(2) 1, 2, 3, 4 Containment Pressure--High- H 1, 2, 3

c. S R High . .