ML20248A846
| ML20248A846 | |
| Person / Time | |
|---|---|
| Site: | Summer  |
| Issue date: | 07/27/1989 |
| From: | SOUTH CAROLINA ELECTRIC & GAS CO. |
| To: | |
| Shared Package | |
| ML20248A836 | List: |
| References | |
| NUDOCS 8908090039 | |
| Download: ML20248A846 (5) | |
Text
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F Attachment I Document Control Desk b tter July 27o.1989 I
,1
_ ELECTRICAL POWER SYSTEMS p
SURVEILLANCE REQUIREMENTS (Continued) b.
Demonstrated OPERABLE at least once every 18 months by manua transferring the onsite Class 1E power supply from the normal circuit to the alternate circuit.
4.8.1.1.2 Each EDG shall be demonstrated OPERABLE:
I In accordance with the frequency specified in Table 4.8-1 on a a.
STAGGERED TEST BASIS by:
1.
Verifying'the fuel level in the day tank and fuel storage tank.
2.
Verifying the fuel transfer pump can be started and transfers fuel from the storage system to the day tank.
3.
Verifying the diesel generator can start
- and accelerate to synchronous speed (504 rpm) with generator voltage and frequency at 7200 1 720 volts and 60 1 1.2 Hz.
4.
Verifying the generator is synchronized, gradually loaded
- to an indicated 4150-4250 kW** and operates for at least 60 minutes.
b.
At least once per 31 days and after each operation of the diesel where the period of operation was greater than or equal to 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> by removing accumulated water from the day tank.
By obtaining a sample of fuel oil in accordance with ASTM-0270-197 at least once per 92 days and prior to the addition of new fue il t
e storage tanks and verifying that the sample meets t follo minimum requirements and is tested within th pecified time limi 1.
As soon as le is taken (or prior to ding new fuel to the l--dU storage tank) v in acc nce the tests specified in y
ASTM-0975-77 that t ra(e a)
A water and ei volume tent of less than or equal to 0.05 3
b)
A kinem iscosity @ 40'C of ater than or equal to
- 1. 9 c istokes, but less than or eq to 4.1 centistokes.
c) specific gravity as specified by the man turer @
~
60/60 F of greater than or equal to 0.83 but le than or equal to 0.89 or an API gravity @ 60*F of greater t r
equal to 27 degrees but less than or equal to 39 degree "This test shall be conducted in accordance with the manufacturer's reco tions regarding engine prelube and warmup procedures, and as applicable regard-ing loading recommendations.
(
- This band is meant as guidance to avoid routine overloading of the engine.
j Loads in excess of this band shall not invalidate the test.
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I SUMMER - UNIT 1 3/4 8-3 AMENDMENT NO. 77 8908090039 890727 PDR ADOCK 05000395 P
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Attachment I Document Control Desk Letter ELECTR1 CAL POBER SYSTEMS July 27, 1989 i
SURVEILLANCE REQUIREMENTS (Continued)
L b i khin 1 week after obtaining the sample, verify an i puri leveT bt-4e an 2 mg of insolubles per 10 en tested in accordance wi
'3.
Within 2 week Q. verify that the other properties s in Table 1 of ASTM-097 i
Gu pidT' sition 2.a are met when tested in atand Regulatory with j
-AWM-D975-77.
{/
At least once per 184 days by:
1.
Starting and accelerating the EDG to synchronous speed (504 rpm) with generator voltage and frequency at 7200 720 volts and 6011.2 Hz within 10 ::cconds after the start signal.
The EDG shall be started for this test by using one of the following signals:
a)
Simulated loss of offsite power by itself.
b)
Simulated loss of offsite power in conjunction with an ESF actuation test signal, c)
An ESF actuation test signal by itself.
d)
Simulated degraded offsite power by itself.
e)
Manual.
2.
The generator shall be manually synchronized, loaded to an indicated 4150-4250 kW** in less than or equal to 60 seconds, and operate for at least 60 minutes.
g [ At least once every 28 months by:
l 1.
Subjecting the diesel to an inspection in accordance with procedures prepared in conjunction with its manufacturer's recommendations for this class of standby service, 2.
Verifying that on rejection of a load of greater than or equal to 729, the voltage and frequency are maintained at 7200 ! 720 volts and frequency at 60 1.2 Hz.
3.
Verifying the generator capability to reject a load of 4250 kw without tripping.
The generator voltage shall not exceed 7920 volts during and following the load rejection.
4.
Simulating a loss of offsite power by itself, and:
a)
Verifying de energi2ation of the emergency busses and load shedding from the emergency busses.
- This band is meant as guidance to avoid routine overloading of the engine.
Loads in excess of this band shall not' invalidate the test.
SUMMER - UNIT 1 3/4 8-4 AMENDMENT NO. 77
yy' E
Attachment I I Ni Document Control. Desk. Letter -
, c.c
. ELECTRICAL POWER SYSTEMS
' July 27f 1989
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j; Yn SURVEILLANCE REQUIREMENTS (Continued) h h.
At least once per 10 years or. af ter any. modifications which could af fect-diesel generator interdependence by starting. the diesel ~
. diesel generators accelerate to at 'least 504 rpm in
' ~
4 equal to 10 seconds.
[j At 1 east once per 10 years by:
- 1. _
Draining each fuel oil storage tank, removing the accumulated sediment and cleaning the tank using a sodium hypochlorite o.
solution or its equivalent, and
,m
('
2.
Performing a pressure. test of those portions of the diesel fuel f
oil system designed to Section 111 subsection ND of the ASME' ll Code at a test pressure equal to 110 percent of the system design pressure.
.be reported to the Commission in a Special Report pur 6.9.2 within 30 days.
Reports of. diesel generator failures shall include the
-Revision.1,: August 1977.information recommended in Regulatory. Positio
- (on a per diesel generator basis) is greater.than or equal to 7, shall be supplemented to include the additional information recommended in R
Regulatory Position C.3.b of Regulatory Guide 1.108, Revision.1, August 1977.
s
)
1 5
i i
SUMMER - UNIT 1 3/4 8-6a AMENDMENT NO. 77 i
i
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I Attachment I
~
Document Control Desk Letter e
July 27, 1989 L
INSERT "L
c.
At least once per 31 e,ys by checking for.and removing
- F e numulated water from the fuel oil storage tanks; d._
By. sampling new fuel oil in accordance with ASTM 04057 l
prior to addition to storage tanks and:
- 1) By verifying in accordance with the tests specified in ASTM-0975-81 prior to addition to the storage tanks that the sample has:
- a. -
An API Gravity of within 0.3 degrees at 60*F, or a specific gravity of within 0.0016 at 60/60*F, when compared to the supplier's certificate, or an absolute specific gravity at 60/60*F of greater than or equal to 0.83 but less than or equal to 0.89, or an API gravity of greater than or equal to 27 degrees but less than or equi 1 to 39 degrees; b.
A kinematic viscosity at 40*C of greater than or equal to 1.9 centistokes, but less than or equa~i to 4.1 centistokes (alternatively Saybolt viscosity, SUS at 100*F of greater than or equal to-32.6, but not less than or equal to 40.1), if gravity was not determined by comparison with the supplier's certification; c.
A flash point equal to or greater than 125'F; and d.
A clear and bright appearance with proper color when tested in accordance with ASTM-D4176-82.
- 2) By verifying within 30 days of obtaining the sample
'that the other properties specified in Table 1 of ASTM-0975-81 are met when tested in accordance with ASTM-D975-81 except that the analysis for sulfur may be performed in accordance with ASTM-D1552-79 or ASTM-D2622-82.
e.
At 'ieast once every 31 days by obtaining a sample of fuel oil in accordance with AS'i+D2276-88, and verifying that total particulate contamination is less than 10 mg/ liter when checked in accordance with ASTM-D2276-88, w=_
Attachment II to Document Control Desk Letter
, July 27, 1989 g
Page'l of 1 No Significant Hazards Consideration
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l The proposed amendment has been reviewed and determined to involve no significant hazards consideration. Operation of the Virgil C. Summer Nuclear Station in accordance with the proposed changes to the Technical Specifications is evaluated with respect to the criteria of 10CFR50.92 as follows:
- 1. The changes would not involve a significant increase in the probability or consequences of an accident previously evaluated. No change to the design or function of any plant system is proposed. The proposed standard for diesel fuel oil acceptability will assure that so far as the fuel is concerned, the emergency Diesel Generator System (EDGS) will continue to furction reliably and can continue to be credited for operation in those instances presencly required in the safety analysis. The fuel oil surveillance program will continue to ensure that an adequate supply of quality fuel oil is maintained onsite.
- 2. The changes would not create the possibility of a new or different kind of accident from any accident previously evaluated. No change in EDGS operation or reliability will result from the proposed change in allowable fuel properties. The proposed change is limited to the sampling and analysis of diesel fuel oil.
- 3. The changes would not involve a significant reduction in a margin of safety. A comparison between acceptability standards, for Grade No. 2 Diesel Fuel Oil between ASTM D975-77 Table 1 6nd ASTM D975-81 Table 1 indicates no difference.
The Nuclear Regulatory Commission has provided examples of wnendments that are not likely to involve a significant, hazards consideration.
Example (ii),
el FR 7751 is as follows:
"A change that constitutes an addicional limitation, restriction, or control not currently included ir,the technical specifications."
SCE&G has determined proposed Surveillance Requirement 4.8.1.1.2.c to be similar to example (ii) since it is an additional control to ensure the quality of available diesel fuel oil.
Example (i), 51 FR 7751 is as follows:
"A purely administrative change to technical specifications."
SCE&G has determined proposed Surveillance Requirements 4.8.1.1.2.h and 4.8.1.1.2.1 to be similar to example (i) since these requirements have been changed only in the relabeling of sections and constitute an editorial change in order to achieve consistency.
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