ML18033B596
| ML18033B596 | |
| Person / Time | |
|---|---|
| Site: | Browns Ferry  |
| Issue date: | 12/28/1990 |
| From: | TENNESSEE VALLEY AUTHORITY |
| To: | |
| Shared Package | |
| ML18033B595 | List: |
| References | |
| NUDOCS 9101080283 | |
| Download: ML18033B596 (4) | |
Text
ENCLOSURE PROPOSED TECHNICAL SPECIFICATIONS BROWNS FERRY NUCLEAR PLANT UNITS I, 2 AND 3 (TVA BFN TS-277, SUPPLEMENT 2) 9i0i080283 90i228 PDR ADOCK 05000259 P
4 AUXIL AR ELEC CAL SYS EM LIMITING CONDITIONS FOR OPERATION SURVEILLANCE REQUIREMENTS 3.9.A.
Auxiliar Electrica E ui ment 3.9.A.l.c.
(Cont'd) 4.9.A.
Auxi ar E ectrical S stem 4.9.A.l.b (Cont'd)
(4) The Athens 161-kV line is available to the units 1
and 2 shutdown boards through a
common station-service transformer when unit 1 is in Cold Shutdown and unit 3 is not claiming the Athens line as an offsite source.
NOTE FOR (3)
AND (4):
With no cooling tower pumps or fans running, a cooling tower transformer may be substituted for a common station-service transformer.
load sequencing, and operates for greater than or equal to five minutes while its gener-ator is loaded with the emergency loads.
(3)
On diesel generator breaker trip, the loads are shed from the emer-gency buses and the diesel output breaker recloses on the auto-start signal, the emergency buses are energized with permanently connected
- loads, the auto-connected emergency loads are energized through load sequencing, and the diesel operates for greater than or equal to five minutes while its generator is loaded with the emergency loads.
c.
Once a month the quantity of diesel fuel available shall be logged.
d.
Each diesel generator shall be given an annual inspec-tion in accordance with instructions based on the manufacturer's recommendations.
e.
Quarterly the quality of each diesel generator's (A,.B, C, and D) seven-day fuel supply shall be checked.
The fuel oil quality shall be within the acceptable limits specified in Table 1
of ASTM-D975-89.
BFN Unit 1 3.9/4.9 3
4 AUXIL ARY ELE C L SYS EM LIMITING CONDITIONS FOR OPERATION SURVEILLANCE REQUIREMENTS 3.9.A.
Auxil ar Electr cal E ui ment 4.9.A.
Auxiliar Electrical S stem 3.9.A.l.c. (Cont'd) 4.9.A.l.b. (Cont'd) emergency loads through load sequencing, and operates for greater than or equal to five minutes while its generator is loaded with the emergency loads.
(4) The Athens 161-kV line is available to the units 1
and 2 shutdown boards through a
common station-service transformer when unit 1 is in Cold Shutdown and unit 3 is not claiming the Athens line as an offsite source.
NOTE FOR (3)
AND (4):
With no cooling tower pumps or fans running, a cooling tower transformer may be substituted for a common station-service transformer.
(3) On diesel generator breaker trip, the loads are shed from the emergency buses and the diesel output breaker recloses on the auto-start signal, the emergency buses are ener'gized with permanently connected
- loads, the auto-connected emergency loads are energized through load sequencing, and the diesel operates for greater than or equal to five minutes while its generator is loaded with the emergency loads.
C ~
Once a month the quantity of diesel fuel available shall be logged.
d.
Each diesel generator shall be given an annual inspec-tion in accordance with instructions based on the manufacturer's recommendations.
e.
Quarterly the quality of each diesel generator's (A, B, C, and D) seven-day fuel supply shall be checked.
The fuel oil quality shall be within the acceptable limits specified in Table 1 of ASTM-D975-89.
BFN Unit 2 3.9/4.9-3
~
e
~
3
/4, AUXILIARYELEC CAL SYSTEM LIMITING CONDITIONS FOR OPERATION SURVEILLANCE REQUIREMENTS 3.9.A.
Auxiliar E ectrica
~Eui ment 4.9.A.
Auxi iar E ectr ca
~Sstem 3.9.A.l.c.(3)
(Cont'd) 4.9.A.l.b.
(Cont'd)
NOTES FOR (2)
AND (3):
through load sequencing, and operates for greater than or equal to five minutes while its gener-ator is loaded with the emergency loads.
If both Athens and Trinity lines are claimed as the two offsite sources for unit 3, no credit may be taken for the Athens-Trinity line tie breaker.
Specifically, the Athens line supplies unit 3 through common station-service transformer A or cooling tower transformer l, and the Trinity line must supply unit 3 through common station-service transformer B or cooling tower transformer 2.
(3)
On diesel generator breaker trip, the loads are shed from the emergency buses and the diesel output breaker closes on the auto-start signal, the emergency buses are energized with permanently connected
- loads, the auto-connected emergency loads are energized through load sequencing, and the diesel operates for greater than or equal to five minutes while its generator is loaded with the emergency loads.
c.
Once a month the quantity of diesel fuel available shall be logged.
d.
Each diesel generator shall be given an annual inspection in accordance with instructions based on the manufacturer's recommendations.
e.
Quarterly the quality of each diesel generator's (3A, 38, 3C, and 3D) seven-day fuel load supply shall be checked.
The fuel oil quality shall be within the acceptable limits specified in Table l of ASTM-D975-89.
BFN Unit 3 3.9/4.9-3