ML19341B813
| ML19341B813 | |
| Person / Time | |
|---|---|
| Site: | Davis Besse  |
| Issue date: | 02/24/1981 |
| From: | TOLEDO EDISON CO. |
| To: | |
| Shared Package | |
| ML19341B806 | List: |
| References | |
| TAC-43253, NUDOCS 8102270657 | |
| Download: ML19341B813 (5) | |
Text
EME).3 ENCY CORE CD10L IN-SVSIEH5 g
s 4
SURVE!LttNCE REOUIREMENT5 At least once per 18 months, or prior to operation after ECCS b.
piping has baen drained by verifying that the ECCS piping is full of water by venting the Ecc5 pump casings and discharge
~.
~J piping high points.
By a Visual inspe::icn which verifies that na loose debris c.
(rags, trash, clothing, e::.) is presen: i n the c;n ta i nme nt which could be transported :: the contain7.en emergen.cy surp and cause restricticn of the put; su: fon during LOCA con-d i-i o ns.
This visual inspe::icn shall be perf:rmed:
1.
For all ac:essibl e areas of the containment prier to establishing CONTAINM.ENT INTEGRITY, and 2.
Of the areas affe: ed withir. conttinnent at the cocoleti:n of each conuir. ment en:ry whe. CONTAIRMENT INTE ?.ITY is es u bl is h-d.
d.-
At least once per 15 mon:hs by:
1.'
Verifying that the interlocks:
a) Close OH-11 and DH-l2 and deenergize the pressurizer heaters, if either OH-11 or OH-12 is open and a simulated reactor coolant system pressure which is greater than the trip setpcint(<438 psig) is apolied, b) prevent the opening of DH-ll and OH-12 when a simulated or actual reactor coolant system pressure which is greater than the trip setpoint (<438 psig) is applied.
2% A visua1 insp-: tion cf the contain=ent e,ergency s:r:p l
whi:h verifies tha* the subsystem suction inlets tre not restricted by debris and :na the se=3 c?cp:nents (trash racks, screens, e::. ) sh:w no evidence of structural distress or corrosion.M 4
(,N SC4.-
CAitcLc.h 3.
Verifying a total leak rate < 20 gallcps per hour for the LPI sys te at:
a)
Ncr:al cperating pressure er hydrostatic t-s pressure of > 150 psig for tn se parts cf the syste= de-nstream of Ihe pump suction isolatien valve, and b)
> 45 psig for the piping from the contain=er.: ecarg ency sump isolation vaive to the peep suction isolation Valve.
4 Verifying that a minimum cf 72. cubic-fee: cf solid granular trisodium ph:s:ha:a d:de:ahydra a (757) is contained within the T5F stcrage baske s.
l0AY15-EEISE,UNITl 3/4 5 4 Amendment No. j( j[
8102 270 [p G -'/
Docket No. 50-346 License No. NPF-3 Serial No. 691 February 24, 1981 Proposed T. S. 4.5.2.d.2 (b)
Verifying that on a Borated Water Storage Tank (BWST) Low-Low Level interlock trip, the BWST Outlet Valve HV-DH7A (HV-DH7B) automatically close in 375 seconds after the operator manually pushes the control switch to open the Containment Emergency Sump Valve HV-DH9A (HV-DH9B) which should be veri-fled to open in 375 seconds.
1; s!
TABLE 3.3-3 5
T
. SAFETY FEATURES ACTUATION SYSTEM INSTRUMENTATION MINIMUM TOTAL NO.
UNITS UNITS APPLICABLE FUNCTIONAL UNIT OF UNITS TO TRIP OPERABLE MODES ACTION c-i'ij 1.
INSTRUMENT STRINGS a.
Containment Radiation -
High 4
2 3
All MODES 9#
b.
Containment Pressure -
High 4
2 3
1,2,3 9#
c.
Containment Pressure -
High-High 4
2 3
1,2,3 9#
d.
RCS Pressure - Low 4
2 3
1, 2, 3*
9#
e.
RCS Pressure - Low-Low 4
2 3
1, 2, 3**
9#
kd f.
BWST Level - Low-- L.()(h) 4 2
3 1,2,3 9#
a 2.
OUTPUT LOGIC w
i
$s a.
Incident Level #1:
Containment Isolation.
2 1
2 All MODES 10 b.
Incident Level #2:
High Pressure Injection and Starting Diesel Generators 2
1 2
1,2,3,4 10 c.
Incident Level #3:
Low Pressure Injection 2
1 2
1,2,3,4 10 d.
Incident Level #4:
1 2
1,2,3,4 10 e.
Incident Level #5:
Containment Sump i
Recirculation
((gqngissiV Ei 2
1 2
1,2,3,4 10 L
TABLE 3.3-5 (Continued)
SAFETY FEATURES SYSTEM RESPONSE TIMES INITIATING SIGNAL AND FUNCTION RESPONSE TIME IN SECONDS 6.
Containment Radiation - High a.
Emergency Vent Fans
< 25*
b.
ECCS Room
< 75*
'2. <
Emergency Ventilation 7 75*
3.
Containment Air Sample 7 30*
4.
Containment Purge 7 15*
5.
Penetratio,n Room Purge
][ 75*
c.
< 10
- DEEETE 7.
Borated Water Storage Tank-Low
5 a.
Containment Sump Suction Valves
< 90*
b.
BWST Outlet Valves
~< 90*
}
TABLE NOTATION Diesel generator starting and sequence loading delays included when applicable.
Response time limit includes movement of valves and attainment of pump or blower discharge pressure.
DAVIS-BESSE, UNIT 1 3/4 3-20 L
.O y
TARLE 4.3-2 4
' SAFETY FEATURES ACTUATION SYSTEM INSTRUMl'NTATION SURVEILLANCE REQUIREMENTS Q
m
~"
CllANNEL MODES IN WHICI
~
CllANNEL CHANilEl FullCTIONAL SURVEILLANCE
. ci; FUNCTIONAL UNIT Cil[CY.
calli 1 RAT 10N TEST REQUIRED
[
1.
INSTRUMENT STRINGS a.
Containment Radia tion - liigh 5
R H
All MODES b.
Containment Pressure - liigh
.5 R
M(2) 1, 2, 3 c.
Containment Pressure - liigh-lligh 5
R M(2) 1, 2, 3 d.
RCS Pressure - Low 5
R H
1, 2, 3 e.
RCS Pressure - Low-Low 5
R H
1, 2, 3 f.
BWSTLevel-Low-1._O\\A)
S R
M 1, 2, 3 2.
DUTPUT L'0GIC a.
Incident level #1: Containment M
lsolation S
R H
All MODES
- b. ' Incident level #2: liigh Pressure W
Injection and Starting Diesel 5
Generators S
R H
1, 2, 3, 4 c.
Incident Level #3: Low Pressure Injection S
R H
1, 2, 3, 4 d.
Incident Level 14:
Spray Containment S
R.
M 1, 2, 3, 4 e.
Incident level #S: Containment Sump Recircula tion PE RM ISSI V E S
R H
1, 2, 3, 4 f 3.
HANUAL ACTUATION a.
SFAS (h+ cept Containment Spray NA NA M(1)
All MODES and Eme gency Sump Recirculation)
,b.
Containment Spray HA NA M(1) 1, 2, 3 4';.
SEQUENCE L0r.lc CilANNELS S
NA H
1, 2, 3, 4 m