ML20002C818
| ML20002C818 | |
| Person / Time | |
|---|---|
| Site: | Big Rock Point File:Consumers Energy icon.png |
| Issue date: | 05/11/1978 |
| From: | CONSUMERS ENERGY CO. (FORMERLY CONSUMERS POWER CO.) |
| To: | |
| Shared Package | |
| ML20002C816 | List: |
| References | |
| NUDOCS 8101120067 | |
| Download: ML20002C818 (6) | |
Text
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7
%s.
s Surveillance Requirement himiting Conditions for Operation h
h 11.3 5 3 EMERCDICY POWER SOURCES (C'ntd) 11.h.5,3 EMERGENCY POWER SOURCES (Contd) tu Rd, -
3 The diesel generator fuel supply shall (4) Overspeed tripping.
be adequate for one-day operation.
qg, (5) Battery.undervoltage alarm.
~
- S) 4.
If Specifications A.2 or A.3 are not met, a normal orderly shutdown shall (c) Verify the. automatic transfer.of be initiated within one (1) hour and station power from the 138 kV line to the h6 kV line, the reactor shall be shut down as described in Section 1.2.5(a) within twelve (12) hours and shut down as (d) Verify 'the automatic transfer of described in Section 1.2.5(a) and (b) power sources for the lY and 2Y vithin the following 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />. During instrument and control panels, refueling operations cease all changes
. hich could affect reactivity.
(e) Verify the cells, cell plates, w
and battery. racks show no visual S.
The station bsttery system shall be indication of physical damage or abnormsl deterioration for the operable.under all conditions except during cold shutdown. If the station station battery and the RDG battery is inoperable, no actions shall batteries.
-be taken which result in a reactivity
. addition, except cooldown, or which (f) Verify the cell-to-cell and ter-minal connections are clean, tight, might result in the primary coolant free of corrosion and coated with system being drained.
anti-corrosion material for the 6.
If Specification A.5 is not met a station battery and the RDS batteries.
normal orderly shutdown of the reactor shall be initiated within one (1) hour (g) Verify that the battery charger for and the reactor shall be shut down as the station battery and the RDS bat-
~
described in Section 1.2.5(a) within teries will supply at least 30 emperes twelve (12) hours and shut down as at a minimum of 135 volts fcr at least described in Section 1.2l$(a) and (b) 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br />.
within the following 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />.
(h) Verify that the capacity of the station 7
One RDS uninterruptible power supply.
battery and the RDS batteries is adequate including battery may be out of service to supply and maintain'in OPERABLE status as described in Section 3.1.5 Action 3.
all of the actual emergency loads f^r the design time interval when the bat-tery is subjected to a battery service test. The design time interval for the RDS batteries is one hour and eight hours for the station battery.
-lh8 Surveillance Requirement Limiting Conditions for Operation 11.3.5.3 EMERGENCY POWER SOURCES (Contd) 11.h.5.3 EMERGENCY POWER SOURCES (Contd) 2.
Monthly:-
8.
During reactor. power operation, the 138 kV line may be out of service for repair for periods up to three (3)
(a) Test start diesel generator and operate at least the fire pump as day s.
a load to 480 V Bus 2B for at least 20 minutes, 9
If Specification A.8 is not met, a normal orderly shutdown shall be ini-tinted within one (1) hour and the (b) Verify that the cell voltage is 1 reactor shall be shut down.as described 2.0 volts and specific gravity is f,,
in Section 1.2 5(a) within twelve (.?2) t 1.2.of each cell of the station hours and shut down as described in battery; and verify that the cell Section 1.2.5(a) and (b) within the voltage is 1 6.0 volts and specific following 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />.
gravity is 11.2 on each cell of the RDS batteries.
(c) Test operate the rod position motor generator set.
3 Weekly -
(a) The electrolyte level of each RDS battery pilot cell and.the station-battery pilot cell is between the minimum and maximum level indication marks.
(b) The pilot cell specific gravity for RDS and station batteries corrected to (77) F, is t 1.2.
~
(c) The station battery pilot cell voltage is 1 2.0 volts. _The RDS battery pilot cell voltage is 1 6.0 volts.
(d) The overall battery voltage is l'125 volts for the station battery and the RDS batteries.
(e) Test start the aiesel generator and run for ' warm-up period.
e
- 148(o);
s Limiting Condition for Operation -
Surveillance Requirement 11.h.5 3 LENERGENCY POWER SOURCES (Contd) 1 (f) Verify that the diesel gen. rator battery '
electrolyte level above plates and over-all battery voltage is > 24 volts.
h.
Quarterly - Verify the following:
(a) That the specific gravity of the diesel generator battery is appropriate' for continued service.
(b) That the diesel generator battery and bat-1 tery rack show no visual indication of
' physical damage or abnormal deterioration; i.
and (c) That the diesel generator battery terminal; connections are clean, tight, free of corrosion and coated with anticorrosion material.
5 Sixty Months - At least once per 60 months during shutdown, verify that the RDS bat-4 teries and the station battery capacity is at least 80% of the manufacturer's rating when subjected to a performance discharge test. This performance discharge test shall be performed subsequent to the
. satisfactory completion of the required battery service test of Part 11.h.5 3.A.l.(h).
1 1
4 I.
I
149 Bates:
Normal station power can be provided by the station turbine generator, the 138 kV transmission line or the 46 kV line. These. sources are adequate to provide emergency a-c power. When none of these sources is available, a single -
emergency diesel generator rated at 200 kW starts automatically to provide emergency a-c power'to 480 V Bus 2B.
The wrekly starting test is_ based on Manufacturer's Bulletin '33743-1 for relubrication protection of moving parts. Diesel generator initiation and output circuit breaker closure is accomplished by two voltage sensors: One to detect loss of normal power on Bus lA; and, the other to provide assurance of generator output prior to automatic closure of the generator output breaker. Additional breaker interlocks are provided to assure that the normal Buses lA and 2A are isolated prior to _ closing the generator output breaker. This prevents overloading of the generator during the switching period.
The operability of the diesel battery and charger is verified by the weekly starting test of the diesel and by the weekly verification of the electrolyte level and overall battery voltage.
The diesel fuel oil tank is sized for two-day full-load operation. One-day supply is considered adequate to provide fuel makeup.
A single station battery supplies power for normal station services and is sized for emergency uses including valves and controls of Loss of Coolant Accidents. The battery can be charged from the emergency diesel generator output if normal station power sources are not available.
The primary core spray valves and the primary containment spray valve are operated and controlled by power from the station battery. The backup core spray valves and backup containment spray valve are operated by power from normal station power sources or the emergency diesel generator.
RDS uninterruptible power supplies (UPS) A, B, C, and D (each consisting of a battery, battery charger and an inverter) supply each division (except division 5) with electrical power. Each UPS has outputs of 120 V a-c, 60 Hz, and 125 V '
d-c.
One of these batteries supplies control power for the emergency diesel generator. Divisions 1 & 2 and 3 & 4 nor-mally receive power from 480 V a-c Buses lA and 2A, respectively. In the event of loss _ of power to either or both buses, provision is included for supplying input power from 480 V a-c Bus 2B which is tied to.the emergency diesel generator.
If all 480 V a-c power 'is lost, the RDS UPS is capable of sustaining its outputs for one hour. The station battery has adequate capacity to carry normal loads plus an assumed failure (locked rotor current) of the d-c lube oil pump for Sh minutes without the battery charger and still provide sufficient power for equipment required to operate during a LOCA.
If steps are taken to reduce nonessential loads during a loss of off-site power (such as part of the emergency lights),
additional time (up to five hours) can be gained from the time of the loss of the charger until the battery would no longer have sufficient power for equipment required to operate during a LOCA. The staticn battery and the four (h) RDS batteries will be considered operable if they are essentially fully charged and the battery charger is in service.
Additionally, prior to the startup following the 1977 refueling outage, successful completion of service testing and performance discharge testing within each operating cycle and each sixty months, respectively, will further establish battery reliability.
SURVEILLANCE REQUIREMENTS k.T.11.1.1-The FIRE SUPPRESSION VATER SYSTEM shall be demonstrated OPERABLE:
a.
Once per 7 days verifying the Intake Bay water level is above 570' elevation.
b.
Once per 31 days by starting each pump and operating the electric driven pump for at least five minutes and the diesel pump for at~ least 30 minutes.
c.
At least once per 92 days by verifying that a sample of diesel fuel from the fuel storage tank, obtained in accordance with ASTM-D270-65, is within the acceptable limits specified in Table 1 of ASTM-D975-Th with respect to viscosity, water content and sediment.
d.
Once per 18 months:
1.
By a system flush and by verifying that each valve in the flow path that is not locked, sealed, or otherwise secured in position, is in its correct position.
2.
By performing a system functional test which includes simulated automatic actuation of the system throughout its operating sequence.
3 By verifying that each pump vill develop a flow of at least 1000 gym at a system head of 110 psi.
h.
Subjecting the diesel to an inspection in accordance with procedures prepared in connection with its manufac-turer's recommendations for the class of service.
e.
Once per 3 years by performing flow tests to meet or exceed the requirements of Section II, Chapter 5 of the Fire Protection Handbook,14th Edition published by National Fire Protection Association.
4 7 11.1.2 The fire pump diesel starting 2h-volt battery bank and charger shall be demonstrated OPERABLE:
a.
At least once per 7 days by verifying that:
1.
The electrolyte level of each battery is above the plates, and 2.
The overall battery voltage is > 2h volts, b.
At least once per 92 days by verifying that the specific gravity is appropriate for continued service of the battery.
c.
At least once per 16 months by verifying that:
1.
The batteries and battery racks shcv no visual in41 cation of _ physical damage or abncrmal deterioration, and 2.
The battery-to-battery and terminal connections are clean, tight free of corrosion and coated with anti-corrosion =aterial.
Amendment No.
153
i
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b6
/4 4Y f
REGULATORY INFORMATION DISTRIBUTION SYSTEM (RIDS)
DISTRIBUTION FOR INCOMING MATERIAL 50-155 REC: ZIEMANN D L ORG: BIXEL D A DOCDATE: 05/11/78 NRC CONSUMERS PWR DATE RCVD: 05/15/-
7{
.DOCTYPE: LETTER NOTARIZED: YES
SUBJECT:
COPIES RECEIVED LTR 3 ENCL 40 FORWARDING LIC NO DPR-6 APPL FOR AMEND:
TECH SPEC PROPOSED CHANGE CONCERNING INCORPORATING SURVEILLANCE TESTING FOR SAFETY-RELATED D-C PWR SUPPLIES, CLARIFY EXISTING EMERGENCY PWR SUPPLY LIMITING CONDITIONS OF OPERATION AND OTHER REVISIONS AS LISTED.. NorA fizEO s////76 PLANT NAME: BIG ROCK PT REVIEWER INITI AL:
XJM DISTRIBUTOR INITI AL: Q 0o0a************* DISTRIBUTION OF THIS MATERIAL IS AS FOLLOWS ******************
e GENERAL DISTRIBUTION FOR AFTER ISSUANCE OF OPERATING LICENSE.
(DISTRIBUTION CODE AOO1)
FOR ACTION:
BR CHIEF ZIEMANN**W/7 ENCL INTERNAL:
6L W7d)$ L NRC PDR**W/ ENCL
=E**H/2-E OELD**LTR ONLY HANAUER**W/ ENCL CHECK **W/ ENCL EISENHUT**W/ ENCL SHAO**W/ ENCL BAER**W/ ENCL BUTLER **W/ ENCL EEB**W/ ENCL J COLLINS **W/ ENCL J.
MCGOUGH**W/ ENCL EXTERNAL:
LPDR'S CHARLEVOIX, MI**W/ ENCL TIC **W/ ENCL NSIC**W/ ENCL ACRS CAT B**W/16 ENCL DISTRIBUTION:
LTR 40 ENCL 39 CONTROL NBR:
SIZE: 1P+10P cocoo******************************
THE END